diff options
Diffstat (limited to 'util-src/hashes.c')
| -rw-r--r-- | util-src/hashes.c | 57 |
1 files changed, 31 insertions, 26 deletions
diff --git a/util-src/hashes.c b/util-src/hashes.c index 459f75ac..b027423a 100644 --- a/util-src/hashes.c +++ b/util-src/hashes.c @@ -1,7 +1,7 @@ /* 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. -- @@ -34,12 +34,13 @@ typedef unsigned __int32 uint32_t; #define HMAC_IPAD 0x36363636 #define HMAC_OPAD 0x5c5c5c5c -const char *hex_tab = "0123456789abcdef"; -void toHex(const unsigned char *in, int length, unsigned char *out) { +const char* hex_tab = "0123456789abcdef"; +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]; } } @@ -68,15 +69,14 @@ MAKE_HASH_FUNCTION(Lmd5, MD5, MD5_DIGEST_LENGTH) struct hash_desc { int (*Init)(void*); - int (*Update)(void*, const void *, size_t); + int (*Update)(void*, const void*, size_t); int (*Final)(unsigned char*, void*); size_t digestLength; - void *ctx, *ctxo; + 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) -{ +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]; @@ -86,7 +86,7 @@ static void hmac(struct hash_desc *desc, const char *key, size_t key_len, unsigned char hashedKey[64]; /* Maximum used digest length */ union xory k_ipad, k_opad; - if (key_len > 64) { + if(key_len > 64) { desc->Init(desc->ctx); desc->Update(desc->ctx, key, key_len); desc->Final(hashedKey, desc->ctx); @@ -98,7 +98,7 @@ static void hmac(struct hash_desc *desc, const char *key, size_t 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++) { + for(i = 0; i < 16; i++) { k_ipad.quadbytes[i] ^= HMAC_IPAD; k_opad.quadbytes[i] ^= HMAC_OPAD; } @@ -143,10 +143,10 @@ 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) { +static int LscramHi(lua_State* L) { union xory { unsigned char bytes[SHA_DIGEST_LENGTH]; - uint32_t quadbytes[SHA_DIGEST_LENGTH/4]; + uint32_t quadbytes[SHA_DIGEST_LENGTH / 4]; }; int i; SHA_CTX ctx, ctxo; @@ -155,32 +155,39 @@ static int LscramHi(lua_State *L) { 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 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.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) + + if(salt2 == NULL) { 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++) { + + 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++) + + for(j = 0; j < SHA_DIGEST_LENGTH / 4; j++) { res.quadbytes[j] ^= Und.quadbytes[j]; + } + memcpy(Ust, Und.bytes, sizeof(Ust)); } @@ -189,8 +196,7 @@ static int LscramHi(lua_State *L) { return 1; } -static const luaL_Reg Reg[] = -{ +static const luaL_Reg Reg[] = { { "sha1", Lsha1 }, { "sha224", Lsha224 }, { "sha256", Lsha256 }, @@ -205,8 +211,7 @@ static const luaL_Reg Reg[] = { NULL, NULL } }; -LUALIB_API int luaopen_util_hashes(lua_State *L) -{ +LUALIB_API int luaopen_util_hashes(lua_State* L) { lua_newtable(L); luaL_register(L, NULL, Reg); lua_pushliteral(L, "-3.14"); |