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#include <assert.h>
#include <limits.h>
#include <stdint.h>
#include "api.h"
#include "blake2.h"
int
crypto_generichash_blake2b(unsigned char *out, size_t outlen,
const unsigned char *in, unsigned long long inlen,
const unsigned char *key, size_t keylen)
{
if (outlen <= 0U || outlen > BLAKE2B_OUTBYTES ||
keylen > BLAKE2B_KEYBYTES || inlen > UINT64_MAX) {
return -1;
}
assert(outlen <= UINT8_MAX);
assert(keylen <= UINT8_MAX);
return blake2b((uint8_t *) out, in, key,
(uint8_t) outlen, (uint64_t) inlen, (uint8_t) keylen);
}
int
crypto_generichash_blake2b_salt_personal(unsigned char *out, size_t outlen,
const unsigned char *in, unsigned long long inlen,
const unsigned char *key, size_t keylen,
const unsigned char *salt,
const unsigned char *personal)
{
if (outlen <= 0U || outlen > BLAKE2B_OUTBYTES ||
keylen > BLAKE2B_KEYBYTES || inlen > UINT64_MAX) {
return -1;
}
assert(outlen <= UINT8_MAX);
assert(keylen <= UINT8_MAX);
return blake2b_salt_personal((uint8_t *) out, in, key,
(uint8_t) outlen, (uint64_t) inlen, (uint8_t) keylen,
salt, personal);
}
int
crypto_generichash_blake2b_init(crypto_generichash_blake2b_state *state,
const unsigned char *key,
const size_t keylen, const size_t outlen)
{
if (outlen <= 0U || outlen > BLAKE2B_OUTBYTES ||
keylen > BLAKE2B_KEYBYTES) {
return -1;
}
assert(outlen <= UINT8_MAX);
assert(keylen <= UINT8_MAX);
if (key == NULL || keylen <= 0U) {
if (blake2b_init(state, (uint8_t) outlen) != 0) {
return -1;
}
} else if (blake2b_init_key(state, (uint8_t) outlen, key,
(uint8_t) keylen) != 0) {
return -1;
}
return 0;
}
int
crypto_generichash_blake2b_init_salt_personal(crypto_generichash_blake2b_state *state,
const unsigned char *key,
const size_t keylen, const size_t outlen,
const unsigned char *salt,
const unsigned char *personal)
{
if (outlen <= 0U || outlen > BLAKE2B_OUTBYTES ||
keylen > BLAKE2B_KEYBYTES) {
return -1;
}
assert(outlen <= UINT8_MAX);
assert(keylen <= UINT8_MAX);
if (key == NULL || keylen <= 0U) {
if (blake2b_init_salt_personal(state, (uint8_t) outlen,
salt, personal) != 0) {
return -1;
}
} else if (blake2b_init_key_salt_personal(state,
(uint8_t) outlen, key,
(uint8_t) keylen,
salt, personal) != 0) {
return -1;
}
return 0;
}
int
crypto_generichash_blake2b_update(crypto_generichash_blake2b_state *state,
const unsigned char *in,
unsigned long long inlen)
{
return blake2b_update(state, (const uint8_t *) in, (uint64_t) inlen);
}
int
crypto_generichash_blake2b_final(crypto_generichash_blake2b_state *state,
unsigned char *out,
const size_t outlen)
{
assert(outlen <= UINT8_MAX);
return blake2b_final(state, (uint8_t *) out, (uint8_t) outlen);
}
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