author | Kim Alvefur <zash@zash.se> |
Sun, 13 Jan 2019 13:59:26 +0100 | |
changeset 9972 | d536796a305f |
parent 9971 | dc9bb31cbffe |
child 9973 | 61bc5c52c941 |
permissions | -rw-r--r-- |
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/* Prosody IM |
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-- Copyright (C) 2009-2010 Matthew Wild |
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-- Copyright (C) 2009-2010 Waqas Hussain |
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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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* hashes.c |
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* Lua library for sha1, sha256 and md5 hashes |
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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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#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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|
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#include "lua.h" |
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#include "lauxlib.h" |
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#include <openssl/sha.h> |
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#include <openssl/md5.h> |
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#include <openssl/hmac.h> |
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#include <openssl/evp.h> |
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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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#define HMAC_IPAD 0x36363636 |
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#define HMAC_OPAD 0x5c5c5c5c |
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const char *hex_tab = "0123456789abcdef"; |
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void toHex(const unsigned char *in, int length, unsigned char *out) { |
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int i; |
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for(i = 0; i < length; i++) { |
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out[i * 2] = hex_tab[(in[i] >> 4) & 0xF]; |
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out[i * 2 + 1] = hex_tab[(in[i]) & 0xF]; |
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} |
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} |
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#define MAKE_HASH_FUNCTION(myFunc, func, size) \ |
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static int myFunc(lua_State *L) { \ |
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size_t len; \ |
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const char *s = luaL_checklstring(L, 1, &len); \ |
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int hex_out = lua_toboolean(L, 2); \ |
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unsigned char hash[size], result[size*2]; \ |
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func((const unsigned char*)s, len, hash); \ |
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if (hex_out) { \ |
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toHex(hash, size, result); \ |
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lua_pushlstring(L, (char*)result, size*2); \ |
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} else { \ |
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lua_pushlstring(L, (char*)hash, size);\ |
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} \ |
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return 1; \ |
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} |
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MAKE_HASH_FUNCTION(Lsha1, SHA1, SHA_DIGEST_LENGTH) |
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MAKE_HASH_FUNCTION(Lsha224, SHA224, SHA224_DIGEST_LENGTH) |
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MAKE_HASH_FUNCTION(Lsha256, SHA256, SHA256_DIGEST_LENGTH) |
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MAKE_HASH_FUNCTION(Lsha384, SHA384, SHA384_DIGEST_LENGTH) |
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MAKE_HASH_FUNCTION(Lsha512, SHA512, SHA512_DIGEST_LENGTH) |
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MAKE_HASH_FUNCTION(Lmd5, MD5, MD5_DIGEST_LENGTH) |
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struct hash_desc { |
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int (*Init)(void *); |
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int (*Update)(void *, const void *, size_t); |
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int (*Final)(unsigned char *, void *); |
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size_t digestLength; |
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void *ctx, *ctxo; |
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}; |
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#define MAKE_HMAC_FUNCTION(myFunc, evp, size, type) \ |
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static int myFunc(lua_State *L) { \ |
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unsigned char hash[size], result[2*size]; \ |
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size_t key_len, msg_len; \ |
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unsigned int out_len; \ |
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const char *key = luaL_checklstring(L, 1, &key_len); \ |
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const char *msg = luaL_checklstring(L, 2, &msg_len); \ |
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const int hex_out = lua_toboolean(L, 3); \ |
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HMAC(evp(), key, key_len, (const unsigned char*)msg, msg_len, (unsigned char*)hash, &out_len); \ |
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if (hex_out) { \ |
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toHex(hash, out_len, result); \ |
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lua_pushlstring(L, (char*)result, out_len*2); \ |
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} else { \ |
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lua_pushlstring(L, (char*)hash, out_len); \ |
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} \ |
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return 1; \ |
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} |
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MAKE_HMAC_FUNCTION(Lhmac_sha1, EVP_sha1, SHA_DIGEST_LENGTH, SHA_CTX) |
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MAKE_HMAC_FUNCTION(Lhmac_sha256, EVP_sha256, SHA256_DIGEST_LENGTH, SHA256_CTX) |
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MAKE_HMAC_FUNCTION(Lhmac_sha512, EVP_sha512, SHA512_DIGEST_LENGTH, SHA512_CTX) |
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100 |
MAKE_HMAC_FUNCTION(Lhmac_md5, EVP_md5, MD5_DIGEST_LENGTH, MD5_CTX) |
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101 |
|
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102 |
static int Lpbkdf2_sha1(lua_State *L) { |
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103 |
unsigned char out[SHA_DIGEST_LENGTH]; |
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104 |
|
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105 |
size_t pass_len, salt_len; |
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106 |
const char *pass = luaL_checklstring(L, 1, &pass_len); |
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107 |
const unsigned char *salt = (unsigned char *)luaL_checklstring(L, 2, &salt_len); |
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108 |
const int iter = luaL_checkinteger(L, 3); |
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109 |
|
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110 |
if(PKCS5_PBKDF2_HMAC(pass, pass_len, salt, salt_len, iter, EVP_sha1(), SHA_DIGEST_LENGTH, out) == 0) { |
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|
111 |
return luaL_error(L, "PKCS5_PBKDF2_HMAC() failed"); |
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112 |
} |
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113 |
|
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114 |
lua_pushlstring(L, (char *)out, SHA_DIGEST_LENGTH); |
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|
115 |
|
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|
116 |
return 1; |
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|
117 |
} |
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|
118 |
|
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|
119 |
|
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|
120 |
static int Lpbkdf2_sha256(lua_State *L) { |
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121 |
unsigned char out[SHA256_DIGEST_LENGTH]; |
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|
122 |
|
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123 |
size_t pass_len, salt_len; |
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124 |
const char *pass = luaL_checklstring(L, 1, &pass_len); |
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125 |
const unsigned char *salt = (unsigned char *)luaL_checklstring(L, 2, &salt_len); |
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126 |
const int iter = luaL_checkinteger(L, 3); |
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|
127 |
|
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|
128 |
if(PKCS5_PBKDF2_HMAC(pass, pass_len, salt, salt_len, iter, EVP_sha256(), SHA256_DIGEST_LENGTH, out) == 0) { |
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129 |
return luaL_error(L, "PKCS5_PBKDF2_HMAC() failed"); |
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130 |
} |
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|
131 |
|
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|
132 |
lua_pushlstring(L, (char *)out, SHA_DIGEST_LENGTH); |
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|
133 |
return 1; |
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|
134 |
} |
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|
135 |
|
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136 |
static const luaL_Reg Reg[] = { |
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|
137 |
{ "sha1", Lsha1 }, |
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|
138 |
{ "sha224", Lsha224 }, |
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|
139 |
{ "sha256", Lsha256 }, |
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|
140 |
{ "sha384", Lsha384 }, |
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|
141 |
{ "sha512", Lsha512 }, |
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|
142 |
{ "md5", Lmd5 }, |
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|
143 |
{ "hmac_sha1", Lhmac_sha1 }, |
15464633d8fb
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|
144 |
{ "hmac_sha256", Lhmac_sha256 }, |
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|
145 |
{ "hmac_sha512", Lhmac_sha512 }, |
15464633d8fb
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|
146 |
{ "hmac_md5", Lhmac_md5 }, |
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|
147 |
{ "scram_Hi_sha1", Lpbkdf2_sha1 }, /* COMPAT */ |
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|
148 |
{ "pbkdf2_hmac_sha1", Lpbkdf2_sha1 }, |
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|
149 |
{ "pbkdf2_hmac_sha256", Lpbkdf2_sha256 }, |
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|
150 |
{ NULL, NULL } |
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|
151 |
}; |
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|
152 |
|
7892
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153 |
LUALIB_API int luaopen_util_hashes(lua_State *L) { |
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|
154 |
#if (LUA_VERSION_NUM > 501) |
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|
155 |
luaL_checkversion(L); |
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|
156 |
#endif |
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|
157 |
lua_newtable(L); |
9961
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|
158 |
luaL_setfuncs(L, Reg, 0); |
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|
159 |
lua_pushliteral(L, "-3.14"); |
6415
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|
160 |
lua_setfield(L, -2, "version"); |
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|
161 |
return 1; |
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|
162 |
} |