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util.hashes: Add PBKDF2-HMAC-SHA256

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This commit is contained in:
Kim Alvefur 2019-01-13 13:59:26 +01:00
parent 5a6c7ae673
commit ffc422e2f6
1 changed files with 18 additions and 0 deletions
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18
util-src/hashes.c
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@ -116,6 +116,23 @@ static int Lpbkdf2_sha1(lua_State *L) {
return 1;
}
static int Lpbkdf2_sha256(lua_State *L) {
unsigned char out[SHA256_DIGEST_LENGTH];
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);
if(PKCS5_PBKDF2_HMAC(pass, pass_len, salt, salt_len, iter, EVP_sha256(), SHA256_DIGEST_LENGTH, out) == 0) {
return luaL_error(L, "PKCS5_PBKDF2_HMAC() failed");
}
lua_pushlstring(L, (char *)out, SHA_DIGEST_LENGTH);
return 1;
}
static const luaL_Reg Reg[] = {
{ "sha1", Lsha1 },
{ "sha224", Lsha224 },
@ -129,6 +146,7 @@ static const luaL_Reg Reg[] = {
{ "hmac_md5", Lhmac_md5 },
{ "scram_Hi_sha1", Lpbkdf2_sha1 }, /* COMPAT */
{ "pbkdf2_hmac_sha1", Lpbkdf2_sha1 },
{ "pbkdf2_hmac_sha256", Lpbkdf2_sha256 },
{ NULL, NULL }
};