#include "../prf.h"
#include "../ed25519/sha512.h"
-static void memxor(char *buf, char c, size_t len) {
+static void memxor(uint8_t *buf, uint8_t c, size_t len) {
for(size_t i = 0; i < len; i++) {
buf[i] ^= c;
}
static const size_t mdlen = 64;
static const size_t blklen = 128;
-static bool hmac_sha512(const char *key, size_t keylen, const char *msg, size_t msglen, char *out) {
- char tmp[blklen + mdlen];
+static bool hmac_sha512(const uint8_t *key, size_t keylen, const uint8_t *msg, size_t msglen, uint8_t *out) {
+ uint8_t tmp[blklen + mdlen];
sha512_context md;
if(keylen <= blklen) {
We use SHA512 instead of MD5 and SHA1.
*/
-bool prf(const char *secret, size_t secretlen, char *seed, size_t seedlen, char *out, size_t outlen) {
+bool prf(const uint8_t *secret, size_t secretlen, uint8_t *seed, size_t seedlen, uint8_t *out, size_t outlen) {
/* Data is what the "inner" HMAC function processes.
It consists of the previous HMAC result plus the seed.
*/
- char data[mdlen + seedlen];
+ uint8_t data[mdlen + seedlen];
memset(data, 0, mdlen);
memcpy(data + mdlen, seed, seedlen);
- char hash[mdlen];
+ uint8_t hash[mdlen];
while(outlen > 0) {
/* Inner HMAC */