author | Matthew Wild <mwild1@gmail.com> |
Fri, 24 Jun 2022 16:56:16 +0100 | |
changeset 12697 | 7c5afbdcbc77 |
child 12701 | 916871447b2f |
permissions | -rw-r--r-- |
12697
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/* Prosody IM |
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-- Copyright (C) 2022 Matthew Wild |
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-- |
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-- This project is MIT/X11 licensed. Please see the |
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-- COPYING file in the source package for more information. |
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-- |
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*/ |
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|
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/* |
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* crypto.c |
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* Lua library for cryptographic operations using OpenSSL |
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*/ |
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|
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#include <string.h> |
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#include <stdlib.h> |
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|
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#ifdef _MSC_VER |
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typedef unsigned __int32 uint32_t; |
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#else |
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#include <inttypes.h> |
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#endif |
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#include "lua.h" |
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#include "lauxlib.h" |
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#include <openssl/crypto.h> |
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#include <openssl/ecdsa.h> |
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#include <openssl/err.h> |
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#include <openssl/evp.h> |
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#include <openssl/obj_mac.h> |
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#include <openssl/pem.h> |
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|
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#if (LUA_VERSION_NUM == 501) |
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#define luaL_setfuncs(L, R, N) luaL_register(L, NULL, R) |
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#endif |
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|
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#include "managed_pointer.h" |
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|
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#define PKEY_MT_TAG "util.crypto key" |
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|
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static BIO* new_memory_BIO() { |
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return BIO_new(BIO_s_mem()); |
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} |
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|
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MANAGED_POINTER_ALLOCATOR(new_managed_EVP_MD_CTX, EVP_MD_CTX*, EVP_MD_CTX_new, EVP_MD_CTX_free) |
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MANAGED_POINTER_ALLOCATOR(new_managed_BIO_s_mem, BIO*, new_memory_BIO, BIO_free) |
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MANAGED_POINTER_ALLOCATOR(new_managed_EVP_CIPHER_CTX, EVP_CIPHER_CTX*, EVP_CIPHER_CTX_new, EVP_CIPHER_CTX_free) |
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static EVP_PKEY* pkey_from_arg(lua_State *L, int idx, const int type, const int require_private) { |
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EVP_PKEY *pkey = *(EVP_PKEY**)luaL_checkudata(L, idx, PKEY_MT_TAG); |
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if(type || require_private) { |
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lua_getuservalue(L, idx); |
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if(type != 0) { |
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lua_getfield(L, -1, "type"); |
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if(lua_tointeger(L, -1) != type) { |
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luaL_argerror(L, idx, "unexpected key type"); |
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} |
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lua_pop(L, 1); |
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} |
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if(require_private != 0) { |
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lua_getfield(L, -1, "private"); |
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if(lua_toboolean(L, -1) != 1) { |
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luaL_argerror(L, idx, "private key expected, got public key only"); |
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} |
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lua_pop(L, 1); |
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} |
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lua_pop(L, 1); |
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} |
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return pkey; |
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} |
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static int Lpkey_finalizer(lua_State *L) { |
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EVP_PKEY *pkey = pkey_from_arg(L, 1, 0, 0); |
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EVP_PKEY_free(pkey); |
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return 0; |
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} |
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static int Lpkey_meth_get_type(lua_State *L) { |
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EVP_PKEY *pkey = pkey_from_arg(L, 1, 0, 0); |
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int key_type = EVP_PKEY_id(pkey); |
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lua_pushstring(L, OBJ_nid2sn(key_type)); |
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return 1; |
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} |
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static int base_evp_sign(lua_State *L, const int key_type, const EVP_MD *digest_type) { |
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EVP_PKEY *pkey = pkey_from_arg(L, 1, key_type, 1); |
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luaL_Buffer sigbuf; |
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size_t msg_len; |
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const unsigned char* msg = (unsigned char*)lua_tolstring(L, 2, &msg_len); |
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|
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size_t sig_len; |
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unsigned char *sig = NULL; |
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EVP_MD_CTX *md_ctx = new_managed_EVP_MD_CTX(L); |
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if(EVP_DigestSignInit(md_ctx, NULL, digest_type, NULL, pkey) != 1) { |
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lua_pushnil(L); |
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return 1; |
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} |
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if(EVP_DigestSign(md_ctx, NULL, &sig_len, msg, msg_len) != 1) { |
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lua_pushnil(L); |
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return 1; |
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} |
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// COMPAT w/ Lua 5.1 |
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luaL_buffinit(L, &sigbuf); |
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sig = memset(luaL_prepbuffer(&sigbuf), 0, sig_len); |
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108 |
|
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if(EVP_DigestSign(md_ctx, sig, &sig_len, msg, msg_len) != 1) { |
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lua_pushnil(L); |
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111 |
} |
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else { |
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luaL_addsize(&sigbuf, sig_len); |
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114 |
luaL_pushresult(&sigbuf); |
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115 |
return 1; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
116 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
117 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
118 |
return 1; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
119 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
120 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
121 |
static int base_evp_verify(lua_State *L, const int key_type, const EVP_MD *digest_type) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
122 |
EVP_PKEY *pkey = pkey_from_arg(L, 1, key_type, 0); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
123 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
124 |
size_t msg_len; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
125 |
const unsigned char *msg = (unsigned char*)luaL_checklstring(L, 2, &msg_len); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
126 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
127 |
size_t sig_len; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
128 |
const unsigned char *sig = (unsigned char*)luaL_checklstring(L, 3, &sig_len); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
129 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
130 |
EVP_MD_CTX *md_ctx = EVP_MD_CTX_new(); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
131 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
132 |
if(EVP_DigestVerifyInit(md_ctx, NULL, digest_type, NULL, pkey) != 1) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
133 |
lua_pushnil(L); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
134 |
goto cleanup; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
135 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
136 |
int result = EVP_DigestVerify(md_ctx, sig, sig_len, msg, msg_len); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
137 |
if(result == 0) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
138 |
lua_pushboolean(L, 0); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
139 |
} else if(result != 1) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
140 |
lua_pushnil(L); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
141 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
142 |
else { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
143 |
lua_pushboolean(L, 1); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
144 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
145 |
cleanup: |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
146 |
EVP_MD_CTX_free(md_ctx); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
147 |
return 1; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
148 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
149 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
150 |
static int Lpkey_meth_public_pem(lua_State *L) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
151 |
char *data; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
152 |
size_t bytes; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
153 |
EVP_PKEY *pkey = pkey_from_arg(L, 1, 0, 0); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
154 |
BIO *bio = new_managed_BIO_s_mem(L); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
155 |
if(PEM_write_bio_PUBKEY(bio, pkey)) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
156 |
bytes = BIO_get_mem_data(bio, &data); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
157 |
if (bytes > 0) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
158 |
lua_pushlstring(L, data, bytes); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
159 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
160 |
else { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
161 |
lua_pushnil(L); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
162 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
163 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
164 |
else { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
165 |
lua_pushnil(L); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
166 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
167 |
return 1; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
168 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
169 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
170 |
static int Lpkey_meth_private_pem(lua_State *L) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
171 |
char *data; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
172 |
size_t bytes; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
173 |
EVP_PKEY *pkey = pkey_from_arg(L, 1, 0, 1); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
174 |
BIO *bio = new_managed_BIO_s_mem(L); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
175 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
176 |
if(PEM_write_bio_PrivateKey(bio, pkey, NULL, NULL, 0, NULL, NULL)) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
177 |
bytes = BIO_get_mem_data(bio, &data); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
178 |
if (bytes > 0) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
179 |
lua_pushlstring(L, data, bytes); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
180 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
181 |
else { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
182 |
lua_pushnil(L); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
183 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
184 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
185 |
else { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
186 |
lua_pushnil(L); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
187 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
188 |
return 1; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
189 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
190 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
191 |
/* ecdsa_sha256_sign(key, data) */ |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
192 |
static int Lecdsa_sha256_sign(lua_State *L) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
193 |
return base_evp_sign(L, NID_X9_62_id_ecPublicKey, EVP_sha256()); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
194 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
195 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
196 |
/* ecdsa_sha256_verify(key, data, sig) */ |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
197 |
static int Lecdsa_sha256_verify(lua_State *L) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
198 |
return base_evp_verify(L, NID_X9_62_id_ecPublicKey, EVP_sha256()); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
199 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
200 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
201 |
static int push_pkey(lua_State *L, EVP_PKEY *pkey, const int type, const int privkey) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
202 |
EVP_PKEY **ud = lua_newuserdata(L, sizeof(EVP_PKEY*)); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
203 |
*ud = pkey; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
204 |
luaL_newmetatable(L, PKEY_MT_TAG); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
205 |
lua_setmetatable(L, -2); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
206 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
207 |
/* Set some info about the key and attach it as a user value */ |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
208 |
lua_newtable(L); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
209 |
if(type != 0) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
210 |
lua_pushinteger(L, type); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
211 |
lua_setfield(L, -2, "type"); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
212 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
213 |
if(privkey != 0) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
214 |
lua_pushboolean(L, 1); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
215 |
lua_setfield(L, -2, "private"); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
216 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
217 |
lua_setuservalue(L, -2); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
218 |
return 1; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
219 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
220 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
221 |
static int Lgenerate_ed25519_keypair(lua_State *L) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
222 |
EVP_PKEY *pkey = NULL; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
223 |
EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_ED25519, NULL); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
224 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
225 |
/* Generate key */ |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
226 |
EVP_PKEY_keygen_init(pctx); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
227 |
EVP_PKEY_keygen(pctx, &pkey); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
228 |
EVP_PKEY_CTX_free(pctx); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
229 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
230 |
push_pkey(L, pkey, NID_ED25519, 1); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
231 |
return 1; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
232 |
} |
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|
233 |
|
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234 |
static int Limport_private_pem(lua_State *L) { |
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|
235 |
EVP_PKEY *pkey = NULL; |
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|
236 |
|
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237 |
size_t privkey_bytes; |
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|
238 |
const char* privkey_data; |
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|
239 |
BIO *bio = new_managed_BIO_s_mem(L); |
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|
240 |
|
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|
241 |
privkey_data = luaL_checklstring(L, 1, &privkey_bytes); |
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|
242 |
BIO_write(bio, privkey_data, privkey_bytes); |
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|
243 |
pkey = PEM_read_bio_PrivateKey(bio, NULL, NULL, NULL); |
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|
244 |
if (pkey) { |
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|
245 |
push_pkey(L, pkey, EVP_PKEY_id(pkey), 1); |
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|
246 |
} |
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|
247 |
else { |
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|
248 |
lua_pushnil(L); |
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|
249 |
} |
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|
250 |
|
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|
251 |
return 1; |
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|
252 |
} |
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|
253 |
|
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|
254 |
static int Limport_public_pem(lua_State *L) { |
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|
255 |
EVP_PKEY *pkey = NULL; |
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|
256 |
|
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|
257 |
size_t pubkey_bytes; |
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|
258 |
const char* pubkey_data; |
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|
259 |
BIO *bio = new_managed_BIO_s_mem(L); |
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|
260 |
|
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|
261 |
pubkey_data = luaL_checklstring(L, 1, &pubkey_bytes); |
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|
262 |
BIO_write(bio, pubkey_data, pubkey_bytes); |
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|
263 |
pkey = PEM_read_bio_PUBKEY(bio, NULL, NULL, NULL); |
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|
264 |
if (pkey) { |
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|
265 |
push_pkey(L, pkey, EVP_PKEY_id(pkey), 0); |
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|
266 |
} |
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|
267 |
else { |
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|
268 |
lua_pushnil(L); |
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|
269 |
} |
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|
270 |
|
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|
271 |
return 1; |
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|
272 |
} |
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|
273 |
|
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|
274 |
static int Led25519_sign(lua_State *L) { |
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|
275 |
return base_evp_sign(L, NID_ED25519, NULL); |
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|
276 |
} |
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|
277 |
|
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|
278 |
static int Led25519_verify(lua_State *L) { |
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|
279 |
return base_evp_verify(L, NID_ED25519, NULL); |
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|
280 |
} |
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|
281 |
|
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|
282 |
/* gcm_encrypt(key, iv, plaintext) */ |
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|
283 |
static int Laes_gcm_encrypt(lua_State *L, const EVP_CIPHER *cipher, const unsigned char expected_key_len) { |
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|
284 |
EVP_CIPHER_CTX *ctx; |
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|
285 |
luaL_Buffer ciphertext_buffer; |
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changeset
|
286 |
|
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|
287 |
size_t key_len, iv_len, plaintext_len; |
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|
288 |
int ciphertext_len, final_len; |
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changeset
|
289 |
|
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|
290 |
const unsigned char *key = (unsigned char*)luaL_checklstring(L, 1, &key_len); |
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|
291 |
const unsigned char *iv = (unsigned char*)luaL_checklstring(L, 2, &iv_len); |
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|
292 |
const unsigned char *plaintext = (unsigned char*)luaL_checklstring(L, 3, &plaintext_len); |
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changeset
|
293 |
|
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changeset
|
294 |
if(key_len != expected_key_len) { |
7c5afbdcbc77
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|
295 |
return luaL_error(L, "key must be %d bytes", expected_key_len); |
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|
296 |
} |
7c5afbdcbc77
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changeset
|
297 |
luaL_argcheck(L, iv_len == 12, 2, "iv must be 12 bytes"); |
7c5afbdcbc77
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changeset
|
298 |
if(lua_gettop(L) > 3) { |
7c5afbdcbc77
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changeset
|
299 |
return luaL_error(L, "Expected 3 arguments, got %d", lua_gettop(L)); |
7c5afbdcbc77
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parents:
diff
changeset
|
300 |
} |
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changeset
|
301 |
|
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|
302 |
// Create and initialise the context |
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|
303 |
ctx = new_managed_EVP_CIPHER_CTX(L); |
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diff
changeset
|
304 |
|
7c5afbdcbc77
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parents:
diff
changeset
|
305 |
// Initialise the encryption operation |
7c5afbdcbc77
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diff
changeset
|
306 |
if(1 != EVP_EncryptInit_ex(ctx, cipher, NULL, NULL, NULL)) { |
7c5afbdcbc77
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parents:
diff
changeset
|
307 |
return luaL_error(L, "Error while initializing encryption engine"); |
7c5afbdcbc77
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parents:
diff
changeset
|
308 |
} |
7c5afbdcbc77
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Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
309 |
|
7c5afbdcbc77
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diff
changeset
|
310 |
// Initialise key and IV |
7c5afbdcbc77
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diff
changeset
|
311 |
if(1 != EVP_EncryptInit_ex(ctx, NULL, NULL, key, iv)) { |
7c5afbdcbc77
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parents:
diff
changeset
|
312 |
return luaL_error(L, "Error while initializing key/iv"); |
7c5afbdcbc77
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parents:
diff
changeset
|
313 |
} |
7c5afbdcbc77
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parents:
diff
changeset
|
314 |
|
7c5afbdcbc77
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Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
315 |
luaL_buffinit(L, &ciphertext_buffer); |
7c5afbdcbc77
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parents:
diff
changeset
|
316 |
unsigned char *ciphertext = (unsigned char*)luaL_prepbuffsize(&ciphertext_buffer, plaintext_len+16); |
7c5afbdcbc77
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parents:
diff
changeset
|
317 |
|
7c5afbdcbc77
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Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
318 |
if(1 != EVP_EncryptUpdate(ctx, ciphertext, &ciphertext_len, plaintext, plaintext_len)) { |
7c5afbdcbc77
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Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
319 |
return luaL_error(L, "Error while encrypting data"); |
7c5afbdcbc77
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Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
320 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
321 |
|
7c5afbdcbc77
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Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
322 |
/* |
7c5afbdcbc77
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Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
323 |
* Finalise the encryption. Normally ciphertext bytes may be written at |
7c5afbdcbc77
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Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
324 |
* this stage, but this does not occur in GCM mode |
7c5afbdcbc77
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Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
325 |
*/ |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
326 |
if(1 != EVP_EncryptFinal_ex(ctx, ciphertext + ciphertext_len, &final_len)) { |
7c5afbdcbc77
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Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
327 |
return luaL_error(L, "Error while encrypting final data"); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
328 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
329 |
if(final_len != 0) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
330 |
return luaL_error(L, "Non-zero final data"); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
331 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
332 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
333 |
/* Get the tag */ |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
334 |
if(1 != EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_GET_TAG, 16, ciphertext + ciphertext_len)) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
335 |
return luaL_error(L, "Unable to read AEAD tag of encrypted data"); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
336 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
337 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
338 |
luaL_addsize(&ciphertext_buffer, ciphertext_len + 16); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
339 |
luaL_pushresult(&ciphertext_buffer); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
340 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
341 |
return 1; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
342 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
343 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
344 |
static int Laes_128_gcm_encrypt(lua_State *L) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
345 |
return Laes_gcm_encrypt(L, EVP_aes_128_gcm(), 16); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
346 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
347 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
348 |
static int Laes_256_gcm_encrypt(lua_State *L) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
349 |
return Laes_gcm_encrypt(L, EVP_aes_256_gcm(), 32); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
350 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
351 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
352 |
/* gcm_decrypt(key, iv, ciphertext) */ |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
353 |
static int Laes_gcm_decrypt(lua_State *L, const EVP_CIPHER *cipher, const unsigned char expected_key_len) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
354 |
EVP_CIPHER_CTX *ctx; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
355 |
luaL_Buffer plaintext_buffer; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
356 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
357 |
size_t key_len, iv_len, ciphertext_len; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
358 |
int plaintext_len, final_len; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
359 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
360 |
const unsigned char *key = (unsigned char*)luaL_checklstring(L, 1, &key_len); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
361 |
const unsigned char *iv = (unsigned char*)luaL_checklstring(L, 2, &iv_len); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
362 |
const unsigned char *ciphertext = (unsigned char*)luaL_checklstring(L, 3, &ciphertext_len); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
363 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
364 |
if(key_len != expected_key_len) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
365 |
return luaL_error(L, "key must be %d bytes", expected_key_len); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
366 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
367 |
luaL_argcheck(L, iv_len == 12, 2, "iv must be 12 bytes"); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
368 |
luaL_argcheck(L, ciphertext_len > 16, 3, "ciphertext must be at least 16 bytes (including tag)"); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
369 |
if(lua_gettop(L) > 3) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
370 |
return luaL_error(L, "Expected 3 arguments, got %d", lua_gettop(L)); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
371 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
372 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
373 |
/* Create and initialise the context */ |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
374 |
ctx = new_managed_EVP_CIPHER_CTX(L); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
375 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
376 |
/* Initialise the decryption operation. */ |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
377 |
if(!EVP_DecryptInit_ex(ctx, cipher, NULL, NULL, NULL)) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
378 |
return luaL_error(L, "Error while initializing decryption engine"); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
379 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
380 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
381 |
/* Initialise key and IV */ |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
382 |
if(!EVP_DecryptInit_ex(ctx, NULL, NULL, key, iv)) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
383 |
return luaL_error(L, "Error while initializing key/iv"); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
384 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
385 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
386 |
luaL_buffinit(L, &plaintext_buffer); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
387 |
unsigned char *plaintext = (unsigned char*)luaL_prepbuffsize(&plaintext_buffer, ciphertext_len); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
388 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
389 |
/* |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
390 |
* Provide the message to be decrypted, and obtain the plaintext output. |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
391 |
* EVP_DecryptUpdate can be called multiple times if necessary |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
392 |
*/ |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
393 |
if(!EVP_DecryptUpdate(ctx, plaintext, &plaintext_len, ciphertext, ciphertext_len-16)) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
394 |
return luaL_error(L, "Error while decrypting data"); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
395 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
396 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
397 |
/* Set expected tag value. Works in OpenSSL 1.0.1d and later */ |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
398 |
if(!EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_TAG, 16, (unsigned char*)ciphertext + (ciphertext_len-16))) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
399 |
return luaL_error(L, "Error while processing authentication tag"); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
400 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
401 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
402 |
/* |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
403 |
* Finalise the decryption. A positive return value indicates success, |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
404 |
* anything else is a failure - the plaintext is not trustworthy. |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
405 |
*/ |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
406 |
int ret = EVP_DecryptFinal_ex(ctx, plaintext + plaintext_len, &final_len); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
407 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
408 |
if(ret <= 0) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
409 |
/* Verify failed */ |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
410 |
lua_pushnil(L); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
411 |
lua_pushliteral(L, "verify-failed"); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
412 |
return 2; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
413 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
414 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
415 |
luaL_addsize(&plaintext_buffer, plaintext_len + final_len); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
416 |
luaL_pushresult(&plaintext_buffer); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
417 |
return 1; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
418 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
419 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
420 |
static int Laes_128_gcm_decrypt(lua_State *L) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
421 |
return Laes_gcm_decrypt(L, EVP_aes_128_gcm(), 16); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
422 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
423 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
424 |
static int Laes_256_gcm_decrypt(lua_State *L) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
425 |
return Laes_gcm_decrypt(L, EVP_aes_256_gcm(), 32); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
426 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
427 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
428 |
/* r, s = parse_ecdsa_sig(sig_der) */ |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
429 |
static int Lparse_ecdsa_signature(lua_State *L) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
430 |
ECDSA_SIG *sig; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
431 |
size_t sig_der_len; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
432 |
const unsigned char *sig_der = (unsigned char*)luaL_checklstring(L, 1, &sig_der_len); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
433 |
const BIGNUM *r, *s; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
434 |
luaL_Buffer rb, sb; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
435 |
int rlen, slen; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
436 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
437 |
sig = d2i_ECDSA_SIG(NULL, &sig_der, sig_der_len); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
438 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
439 |
if(sig == NULL) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
440 |
lua_pushnil(L); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
441 |
return 1; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
442 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
443 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
444 |
ECDSA_SIG_get0(sig, &r, &s); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
445 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
446 |
rlen = BN_num_bytes(r); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
447 |
slen = BN_num_bytes(s); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
448 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
449 |
// COMPAT w/ Lua 5.1 |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
450 |
#if LUAL_BUFFERSIZE < 32 |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
451 |
#error Configured LUAL_BUFFERSIZE is too small for this operation |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
452 |
#endif |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
453 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
454 |
luaL_buffinit(L, &rb); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
455 |
BN_bn2bin(r, (unsigned char*)luaL_prepbuffer(&rb)); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
456 |
luaL_addsize(&rb, rlen); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
457 |
luaL_pushresult(&rb); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
458 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
459 |
luaL_buffinit(L, &sb); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
460 |
BN_bn2bin(s, (unsigned char*)luaL_prepbuffer(&sb)); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
461 |
luaL_addsize(&sb, slen); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
462 |
luaL_pushresult(&sb); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
463 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
464 |
ECDSA_SIG_free(sig); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
465 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
466 |
return 2; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
467 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
468 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
469 |
/* sig_der = build_ecdsa_signature(r, s) */ |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
470 |
static int Lbuild_ecdsa_signature(lua_State *L) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
471 |
ECDSA_SIG *sig = ECDSA_SIG_new(); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
472 |
BIGNUM *r, *s; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
473 |
luaL_Buffer sigbuf; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
474 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
475 |
size_t rlen, slen; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
476 |
const unsigned char *rbin, *sbin; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
477 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
478 |
rbin = (unsigned char*)luaL_checklstring(L, 1, &rlen); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
479 |
sbin = (unsigned char*)luaL_checklstring(L, 2, &slen); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
480 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
481 |
r = BN_bin2bn(rbin, (int)rlen, NULL); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
482 |
s = BN_bin2bn(sbin, (int)slen, NULL); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
483 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
484 |
ECDSA_SIG_set0(sig, r, s); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
485 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
486 |
luaL_buffinit(L, &sigbuf); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
487 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
488 |
// COMPAT w/ Lua 5.1 |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
489 |
#if LUAL_BUFFERSIZE < 128 |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
490 |
#error Configured LUAL_BUFFERSIZE is too small for this operation |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
491 |
#endif |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
492 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
493 |
unsigned char *buffer = (unsigned char*)luaL_prepbuffer(&sigbuf); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
494 |
int len = i2d_ECDSA_SIG(sig, &buffer); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
495 |
luaL_addsize(&sigbuf, len); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
496 |
luaL_pushresult(&sigbuf); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
497 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
498 |
ECDSA_SIG_free(sig); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
499 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
500 |
return 1; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
501 |
} |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
502 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
503 |
static const luaL_Reg Reg[] = { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
504 |
{ "ed25519_sign", Led25519_sign }, |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
505 |
{ "ed25519_verify", Led25519_verify }, |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
506 |
{ "aes_128_gcm_encrypt", Laes_128_gcm_encrypt }, |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
507 |
{ "aes_128_gcm_decrypt", Laes_128_gcm_decrypt }, |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
508 |
{ "aes_256_gcm_encrypt", Laes_256_gcm_encrypt }, |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
509 |
{ "aes_256_gcm_decrypt", Laes_256_gcm_decrypt }, |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
510 |
{ "ecdsa_sha256_sign", Lecdsa_sha256_sign }, |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
511 |
{ "ecdsa_sha256_verify", Lecdsa_sha256_verify }, |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
512 |
{ "generate_ed25519_keypair", Lgenerate_ed25519_keypair }, |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
513 |
{ "import_private_pem", Limport_private_pem }, |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
514 |
{ "import_public_pem", Limport_public_pem }, |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
515 |
{ "parse_ecdsa_signature", Lparse_ecdsa_signature }, |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
516 |
{ "build_ecdsa_signature", Lbuild_ecdsa_signature }, |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
517 |
{ NULL, NULL } |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
518 |
}; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
519 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
520 |
static const luaL_Reg KeyMethods[] = { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
521 |
{ "private_pem", Lpkey_meth_private_pem }, |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
522 |
{ "public_pem", Lpkey_meth_public_pem }, |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
523 |
{ "get_type", Lpkey_meth_get_type }, |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
524 |
{ NULL, NULL } |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
525 |
}; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
526 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
527 |
static const luaL_Reg KeyMetatable[] = { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
528 |
{ "__gc", Lpkey_finalizer }, |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
529 |
{ NULL, NULL } |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
530 |
}; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
531 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
532 |
LUALIB_API int luaopen_util_crypto(lua_State *L) { |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
533 |
#if (LUA_VERSION_NUM > 501) |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
534 |
luaL_checkversion(L); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
535 |
#endif |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
536 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
537 |
/* Initialize pkey metatable */ |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
538 |
luaL_newmetatable(L, PKEY_MT_TAG); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
539 |
luaL_setfuncs(L, KeyMetatable, 0); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
540 |
lua_newtable(L); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
541 |
luaL_setfuncs(L, KeyMethods, 0); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
542 |
lua_setfield(L, -2, "__index"); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
543 |
lua_pop(L, 1); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
544 |
|
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
545 |
/* Initialize lib table */ |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
546 |
lua_newtable(L); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
547 |
luaL_setfuncs(L, Reg, 0); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
548 |
lua_pushliteral(L, "-3.14"); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
549 |
lua_setfield(L, -2, "version"); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
550 |
#ifdef OPENSSL_VERSION |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
551 |
lua_pushstring(L, OpenSSL_version(OPENSSL_VERSION)); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
552 |
lua_setfield(L, -2, "_LIBCRYPTO_VERSION"); |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
553 |
#endif |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
554 |
return 1; |
7c5afbdcbc77
util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
555 |
} |