/* Prosody IM
-- Copyright (C) 2009-2010 Matthew Wild
-- Copyright (C) 2009-2010 Waqas Hussain
---
+--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
*/
#include <string.h>
+#include <stdlib.h>
+
+#ifdef _MSC_VER
+typedef unsigned __int32 uint32_t;
+#else
+#include <inttypes.h>
+#endif
#include "lua.h"
#include "lauxlib.h"
#include <openssl/sha.h>
#include <openssl/md5.h>
+#if (LUA_VERSION_NUM == 501)
+#define luaL_setfuncs(L, R, N) luaL_register(L, NULL, R)
+#endif
+
+#define HMAC_IPAD 0x36363636
+#define HMAC_OPAD 0x5c5c5c5c
+
const char* hex_tab = "0123456789abcdef";
-void toHex(const char* in, int length, char* out) {
+void toHex(const unsigned char* in, int length, unsigned char* out) {
int i;
- for (i = 0; i < length; i++) {
- out[i*2] = hex_tab[(in[i] >> 4) & 0xF];
- out[i*2+1] = hex_tab[(in[i]) & 0xF];
+
+ for(i = 0; i < length; i++) {
+ out[i * 2] = hex_tab[(in[i] >> 4) & 0xF];
+ out[i * 2 + 1] = hex_tab[(in[i]) & 0xF];
}
}
size_t len; \
const char *s = luaL_checklstring(L, 1, &len); \
int hex_out = lua_toboolean(L, 2); \
- char hash[size]; \
- char result[size*2]; \
- func((const unsigned char*)s, len, (unsigned char*)hash); \
+ unsigned char hash[size], result[size*2]; \
+ func((const unsigned char*)s, len, hash); \
+ if (hex_out) { \
+ toHex(hash, size, result); \
+ lua_pushlstring(L, (char*)result, size*2); \
+ } else { \
+ lua_pushlstring(L, (char*)hash, size);\
+ } \
+ return 1; \
+}
+
+MAKE_HASH_FUNCTION(Lsha1, SHA1, SHA_DIGEST_LENGTH)
+MAKE_HASH_FUNCTION(Lsha224, SHA224, SHA224_DIGEST_LENGTH)
+MAKE_HASH_FUNCTION(Lsha256, SHA256, SHA256_DIGEST_LENGTH)
+MAKE_HASH_FUNCTION(Lsha384, SHA384, SHA384_DIGEST_LENGTH)
+MAKE_HASH_FUNCTION(Lsha512, SHA512, SHA512_DIGEST_LENGTH)
+MAKE_HASH_FUNCTION(Lmd5, MD5, MD5_DIGEST_LENGTH)
+
+struct hash_desc {
+ int (*Init)(void*);
+ int (*Update)(void*, const void*, size_t);
+ int (*Final)(unsigned char*, void*);
+ size_t digestLength;
+ void* ctx, *ctxo;
+};
+
+static void hmac(struct hash_desc* desc, const char* key, size_t key_len,
+ const char* msg, size_t msg_len, unsigned char* result) {
+ union xory {
+ unsigned char bytes[64];
+ uint32_t quadbytes[16];
+ };
+
+ int i;
+ unsigned char hashedKey[64]; /* Maximum used digest length */
+ union xory k_ipad, k_opad;
+
+ if(key_len > 64) {
+ desc->Init(desc->ctx);
+ desc->Update(desc->ctx, key, key_len);
+ desc->Final(hashedKey, desc->ctx);
+ key = (const char*)hashedKey;
+ key_len = desc->digestLength;
+ }
+
+ memcpy(k_ipad.bytes, key, key_len);
+ memset(k_ipad.bytes + key_len, 0, 64 - key_len);
+ memcpy(k_opad.bytes, k_ipad.bytes, 64);
+
+ for(i = 0; i < 16; i++) {
+ k_ipad.quadbytes[i] ^= HMAC_IPAD;
+ k_opad.quadbytes[i] ^= HMAC_OPAD;
+ }
+
+ desc->Init(desc->ctx);
+ desc->Update(desc->ctx, k_ipad.bytes, 64);
+ desc->Init(desc->ctxo);
+ desc->Update(desc->ctxo, k_opad.bytes, 64);
+ desc->Update(desc->ctx, msg, msg_len);
+ desc->Final(result, desc->ctx);
+ desc->Update(desc->ctxo, result, desc->digestLength);
+ desc->Final(result, desc->ctxo);
+}
+
+#define MAKE_HMAC_FUNCTION(myFunc, func, size, type) \
+static int myFunc(lua_State *L) { \
+ type ctx, ctxo; \
+ unsigned char hash[size], result[2*size]; \
+ size_t key_len, msg_len; \
+ const char *key = luaL_checklstring(L, 1, &key_len); \
+ const char *msg = luaL_checklstring(L, 2, &msg_len); \
+ const int hex_out = lua_toboolean(L, 3); \
+ struct hash_desc desc; \
+ desc.Init = (int (*)(void*))func##_Init; \
+ desc.Update = (int (*)(void*, const void *, size_t))func##_Update; \
+ desc.Final = (int (*)(unsigned char*, void*))func##_Final; \
+ desc.digestLength = size; \
+ desc.ctx = &ctx; \
+ desc.ctxo = &ctxo; \
+ hmac(&desc, key, key_len, msg, msg_len, hash); \
if (hex_out) { \
toHex(hash, size, result); \
- lua_pushlstring(L, result, size*2); \
+ lua_pushlstring(L, (char*)result, size*2); \
} else { \
- lua_pushlstring(L, hash, size);\
+ lua_pushlstring(L, (char*)hash, size); \
} \
return 1; \
}
-MAKE_HASH_FUNCTION(Lsha1, SHA1, 20)
-MAKE_HASH_FUNCTION(Lsha256, SHA256, 32)
-MAKE_HASH_FUNCTION(Lmd5, MD5, 16)
+MAKE_HMAC_FUNCTION(Lhmac_sha1, SHA1, SHA_DIGEST_LENGTH, SHA_CTX)
+MAKE_HMAC_FUNCTION(Lhmac_sha256, SHA256, SHA256_DIGEST_LENGTH, SHA256_CTX)
+MAKE_HMAC_FUNCTION(Lhmac_sha512, SHA512, SHA512_DIGEST_LENGTH, SHA512_CTX)
+MAKE_HMAC_FUNCTION(Lhmac_md5, MD5, MD5_DIGEST_LENGTH, MD5_CTX)
+
+static int LscramHi(lua_State* L) {
+ union xory {
+ unsigned char bytes[SHA_DIGEST_LENGTH];
+ uint32_t quadbytes[SHA_DIGEST_LENGTH / 4];
+ };
+ int i;
+ SHA_CTX ctx, ctxo;
+ unsigned char Ust[SHA_DIGEST_LENGTH];
+ union xory Und;
+ union xory res;
+ size_t str_len, salt_len;
+ struct hash_desc desc;
+ const char* str = luaL_checklstring(L, 1, &str_len);
+ const char* salt = luaL_checklstring(L, 2, &salt_len);
+ char* salt2;
+ const int iter = luaL_checkinteger(L, 3);
+
+ desc.Init = (int (*)(void*))SHA1_Init;
+ desc.Update = (int (*)(void*, const void*, size_t))SHA1_Update;
+ desc.Final = (int (*)(unsigned char*, void*))SHA1_Final;
+ desc.digestLength = SHA_DIGEST_LENGTH;
+ desc.ctx = &ctx;
+ desc.ctxo = &ctxo;
+
+ salt2 = malloc(salt_len + 4);
+
+ if(salt2 == NULL) {
+ return luaL_error(L, "Out of memory in scramHi");
+ }
+
+ memcpy(salt2, salt, salt_len);
+ memcpy(salt2 + salt_len, "\0\0\0\1", 4);
+ hmac(&desc, str, str_len, salt2, salt_len + 4, Ust);
+ free(salt2);
+
+ memcpy(res.bytes, Ust, sizeof(res));
+
+ for(i = 1; i < iter; i++) {
+ int j;
+ hmac(&desc, str, str_len, (char*)Ust, sizeof(Ust), Und.bytes);
+
+ for(j = 0; j < SHA_DIGEST_LENGTH / 4; j++) {
+ res.quadbytes[j] ^= Und.quadbytes[j];
+ }
+
+ memcpy(Ust, Und.bytes, sizeof(Ust));
+ }
+
+ lua_pushlstring(L, (char*)res.bytes, SHA_DIGEST_LENGTH);
+
+ return 1;
+}
-static const luaL_Reg Reg[] =
-{
- { "sha1", Lsha1 },
- { "sha256", Lsha256 },
- { "md5", Lmd5 },
- { NULL, NULL }
+static const luaL_Reg Reg[] = {
+ { "sha1", Lsha1 },
+ { "sha224", Lsha224 },
+ { "sha256", Lsha256 },
+ { "sha384", Lsha384 },
+ { "sha512", Lsha512 },
+ { "md5", Lmd5 },
+ { "hmac_sha1", Lhmac_sha1 },
+ { "hmac_sha256", Lhmac_sha256 },
+ { "hmac_sha512", Lhmac_sha512 },
+ { "hmac_md5", Lhmac_md5 },
+ { "scram_Hi_sha1", LscramHi },
+ { NULL, NULL }
};
-LUALIB_API int luaopen_util_hashes(lua_State *L)
-{
- luaL_register(L, "hashes", Reg);
- lua_pushliteral(L, "version"); /** version */
+LUALIB_API int luaopen_util_hashes(lua_State* L) {
+ lua_newtable(L);
+ luaL_setfuncs(L, Reg, 0);;
lua_pushliteral(L, "-3.14");
- lua_settable(L,-3);
+ lua_setfield(L, -2, "version");
return 1;
}
projects / prosody.git / blobdiff