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#include <string.h>
#include "sysdeps.h"
#include "hmac.h"
#include "sha512.h"
struct midstate
{
uint64 H[8];
};
static void extract(const void* statep, void* midstatep)
{
const SHA512_ctx* ctx = statep;
struct midstate* mid = midstatep;
memcpy(mid->H, ctx->H, sizeof *mid);
}
static void inject(void* statep, const void* midstatep)
{
SHA512_ctx* ctx = statep;
const struct midstate* mid = midstatep;
memcpy(ctx->H, mid->H, sizeof *mid);
ctx->bytes = 128;
}
const struct hmac_control_block hmac_sha512 = {
.state_size = sizeof(SHA512_ctx),
.block_size = 128,
.digest_size = SHA512_DIGEST_LENGTH,
.midstate_size = sizeof(struct midstate),
.init = (hmac_init_fn)SHA512_init,
.update = (hmac_update_fn)SHA512_update,
.finalize = (hmac_finalize_fn)SHA512_final,
.extract = extract,
.inject = inject,
};
#ifdef SELFTEST_MAIN
#include "obuf.h"
#include "str.h"
static void test_hmac(const char* key, const char* data)
{
const str key_str = { (char*)key, strlen(key), 0 };
const str data_str = { (char*)data, strlen(data), 0 };
unsigned char digest[SHA512_DIGEST_LENGTH];
unsigned i;
hmac(&hmac_sha512, &key_str, &data_str, digest);
for (i = 0; i < sizeof digest; ++i)
obuf_putxw(&outbuf, digest[i], 2, '0');
obuf_endl(&outbuf);
}
MAIN
{
test_hmac("\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b",
"Hi There");
test_hmac("Jefe", "what do ya want for nothing?");
test_hmac("\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa",
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd"
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd"
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd"
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd"
"\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd");
}
#endif
#ifdef SELFTEST_EXP
7641c48a3b4aa8f887c07b3e83f96affb89c978fed8c96fcbbf4ad596eebfe496f9f16da6cd080ba393c6f365ad72b50d15c71bfb1d6b81f66a911786c6ce932
164b7a7bfcf819e2e395fbe73b56e0a387bd64222e831fd610270cd7ea2505549758bf75c05a994a6d034f65f8f0e6fdcaeab1a34d4a6b4b636e070a38bce737
ad9b5c7de72693737cd5e9d9f41170d18841fec1201c1c1b02e05cae116718009f771cad9946ddbf7e3cde3e818d9ae85d91b2badae94172d096a44a79c91e86
#endif
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