PKCS5_PBKDF2_HMAC_SHA1
PKCS5_PBKDF2_HMAC_SHA1(password.data, password.length,
ret = PKCS5_PBKDF2_HMAC_SHA1(password.data, password.length,
int PKCS5_PBKDF2_HMAC_SHA1(const char *pass, int passlen,