int
crypto_pwhash_scryptsalsa208sha256_str_verify(const char str[crypto_pwhash_scryptsalsa208sha256_STRBYTES],
const char * const passwd,
unsigned long long passwdlen)
{
char wanted[crypto_pwhash_scryptsalsa208sha256_STRBYTES];
escrypt_local_t escrypt_local;
int ret = -1;
if (memchr(str, 0, crypto_pwhash_scryptsalsa208sha256_STRBYTES) !=
&str[crypto_pwhash_scryptsalsa208sha256_STRBYTES - 1U]) {
return -1;
}
if (escrypt_init_local(&escrypt_local) != 0) {
return -1; /* LCOV_EXCL_LINE */
}
memset(wanted, 0, sizeof wanted);
if (escrypt_r(&escrypt_local, (const uint8_t *) passwd, (size_t) passwdlen,
(const uint8_t *) str, (uint8_t *) wanted,
sizeof wanted) == NULL) {
escrypt_free_local(&escrypt_local);
return -1;
}
escrypt_free_local(&escrypt_local);
ret = sodium_memcmp(wanted, str, sizeof wanted);
sodium_memzero(wanted, sizeof wanted);
return ret;
}
static int crypt_all(int *pcount, struct db_salt *salt)
{
int count = *pcount;
int index;
int failed = 0;
#ifdef _OPENMP
#pragma omp parallel for default(none) private(index) shared(count, failed, local, saved_salt, buffer)
#endif
for (index = 0; index < count; index++) {
uint8_t *hash;
hash = escrypt_r(&(local[index]),
(const uint8_t *)(buffer[index].key),
strlen(buffer[index].key),
(const uint8_t *)saved_salt,
(uint8_t *)&(buffer[index].out),
sizeof(buffer[index].out));
if (!hash) {
failed = 1;
buffer[index].out[0] = 0;
}
}
if (failed) {
fprintf(stderr, "scrypt memory allocation failed\n");
error();
}
return count;
}
int
crypto_pwhash_scryptsalsa208sha256_str(char out[crypto_pwhash_scryptsalsa208sha256_STRBYTES],
const char * const passwd,
unsigned long long passwdlen,
unsigned long long opslimit,
size_t memlimit)
{
uint8_t salt[crypto_pwhash_scryptsalsa208sha256_STRSALTBYTES];
char setting[crypto_pwhash_scryptsalsa208sha256_STRSETTINGBYTES + 1U];
escrypt_local_t escrypt_local;
uint32_t N_log2;
uint32_t p;
uint32_t r;
memset(out, 0, crypto_pwhash_scryptsalsa208sha256_STRBYTES);
if (passwdlen > SIZE_MAX) {
errno = EFBIG; /* LCOV_EXCL_LINE */
return -1; /* LCOV_EXCL_LINE */
}
if (pickparams(opslimit, memlimit, &N_log2, &p, &r) != 0) {
errno = EINVAL; /* LCOV_EXCL_LINE */
return -1; /* LCOV_EXCL_LINE */
}
randombytes_buf(salt, sizeof salt);
if (escrypt_gensalt_r(N_log2, r, p, salt, sizeof salt,
(uint8_t *) setting, sizeof setting) == NULL) {
errno = EINVAL; /* LCOV_EXCL_LINE */
return -1; /* LCOV_EXCL_LINE */
}
if (escrypt_init_local(&escrypt_local) != 0) {
return -1; /* LCOV_EXCL_LINE */
}
if (escrypt_r(&escrypt_local, (const uint8_t *) passwd, (size_t) passwdlen,
(const uint8_t *) setting, (uint8_t *) out,
crypto_pwhash_scryptsalsa208sha256_STRBYTES) == NULL) {
/* LCOV_EXCL_START */
escrypt_free_local(&escrypt_local);
errno = EINVAL;
return -1;
/* LCOV_EXCL_STOP */
}
escrypt_free_local(&escrypt_local);
(void) sizeof
(int[SETTING_SIZE(crypto_pwhash_scryptsalsa208sha256_STRSALTBYTES)
== crypto_pwhash_scryptsalsa208sha256_STRSETTINGBYTES ? 1 : -1]);
(void) sizeof
(int[crypto_pwhash_scryptsalsa208sha256_STRSETTINGBYTES + 1U +
crypto_pwhash_scryptsalsa208sha256_STRHASHBYTES_ENCODED + 1U
== crypto_pwhash_scryptsalsa208sha256_STRBYTES ? 1 : -1]);
return 0;
}
uint8_t *
escrypt(const uint8_t * passwd, const uint8_t * setting)
{
static uint8_t buf[4 + 1 + 5 + 5 + BYTES2CHARS(32) + 1 + HASH_LEN + 1];
escrypt_local_t local;
uint8_t * retval;
if (escrypt_init_local(&local))
return NULL;
retval = escrypt_r(&local,
passwd, strlen((char *)passwd), setting, buf, sizeof(buf));
if (escrypt_free_local(&local))
return NULL;
return retval;
}
