diff options
| -rw-r--r-- | util-src/hashes.c | 53 |
1 files changed, 9 insertions, 44 deletions
diff --git a/util-src/hashes.c b/util-src/hashes.c index 8de4ef5b..ac6cac7e 100644 --- a/util-src/hashes.c +++ b/util-src/hashes.c @@ -26,6 +26,7 @@ typedef unsigned __int32 uint32_t; #include <openssl/sha.h> #include <openssl/md5.h> #include <openssl/hmac.h> +#include <openssl/evp.h> #if (LUA_VERSION_NUM == 501) #define luaL_setfuncs(L, R, N) luaL_register(L, NULL, R) @@ -137,54 +138,18 @@ MAKE_HMAC_FUNCTION(Lhmac_sha512, EVP_sha512, SHA512_DIGEST_LENGTH, SHA512_CTX) MAKE_HMAC_FUNCTION(Lhmac_md5, EVP_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); + unsigned char out[SHA_DIGEST_LENGTH]; - 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]; - } + size_t pass_len, salt_len; + const char *pass = luaL_checklstring(L, 1, &pass_len); + const unsigned char *salt = (unsigned char *)luaL_checklstring(L, 2, &salt_len); + const int iter = luaL_checkinteger(L, 3); - memcpy(Ust, Und.bytes, sizeof(Ust)); + if(PKCS5_PBKDF2_HMAC(pass, pass_len, salt, salt_len, iter, EVP_sha1(), SHA_DIGEST_LENGTH, out) == 0) { + return luaL_error(L, "PKCS5_PBKDF2_HMAC() failed"); } - lua_pushlstring(L, (char *)res.bytes, SHA_DIGEST_LENGTH); + lua_pushlstring(L, (char *)out, SHA_DIGEST_LENGTH); return 1; } |