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/*
* SHA-1 in C
* By Steve Reid <sreid@sea-to-sky.net>
* 100% Public Domain
*/
#include "crypt-port.h"
#include "alg-sha1.h"
#include <stdio.h>
#if INCLUDE_sha1crypt
/* Test Vectors (from FIPS PUB 180-1) */
const char *test_data[3] =
{
"abc",
"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
"A million repetitions of 'a'"
};
const char *test_results[3] =
{
"a9993e364706816aba3e25717850c26c9cd0d89d",
"84983e441c3bd26ebaae4aa1f95129e5e54670f1",
"34aa973cd4c4daa4f61eeb2bdbad27316534016f"
};
static void
bin_to_hex (uint8_t *digest, char *output)
{
for (uint8_t i = 0; i < 20; ++i)
{
sprintf (output, "%02x", *digest);
++digest;
output += 2;
}
}
int
main (void)
{
int k;
struct sha1_ctx ctx;
uint8_t digest[20];
char output[80];
uint8_t retval = 0;
for (k = 0; k < 2; k++)
{
sha1_init_ctx (&ctx);
sha1_process_bytes ((const uint8_t*)test_data[k], &ctx, strlen(test_data[k]));
sha1_finish_ctx (&ctx, digest);
bin_to_hex(digest, output);
if (strcmp(output, test_results[k]))
{
fprintf(stdout, "FAIL\n");
fprintf(stderr,"* hash of \"%s\" incorrect:\n", test_data[k]);
fprintf(stderr,"\t%s returned\n", output);
fprintf(stderr,"\t%s is correct\n", test_results[k]);
retval = 1;
}
}
/* million 'a' vector we feed separately */
sha1_init_ctx (&ctx);
for (k = 0; k < 1000000; k++)
sha1_process_bytes ((const uint8_t*)"a", &ctx, 1);
sha1_finish_ctx (&ctx, digest);
bin_to_hex(digest, output);
if (strcmp(output, test_results[2]))
{
fprintf(stdout, "FAIL\n");
fprintf(stderr,"* hash of \"%s\" incorrect:\n", test_data[2]);
fprintf(stderr,"\t%s returned\n", output);
fprintf(stderr,"\t%s is correct\n", test_results[2]);
retval = 1;
}
/* The same test as above, but with 1000 blocks of 1000 bytes. */
char buf[1000];
memset (buf, 'a', sizeof (buf));
sha1_init_ctx (&ctx);
for (k = 0; k < 1000; ++k)
sha1_process_bytes ((const uint8_t*)buf, &ctx, sizeof (buf));
sha1_finish_ctx (&ctx, digest);
bin_to_hex(digest, output);
if (strcmp(output, test_results[2]))
{
fprintf(stdout, "FAIL\n");
fprintf(stderr,"* hash of \"%s\" incorrect:\n", test_data[2]);
fprintf(stderr,"\t%s returned\n", output);
fprintf(stderr,"\t%s is correct\n", test_results[2]);
retval = 1;
}
/* success */
return retval;
}
#else
int
main (void)
{
return 77; /* UNSUPPORTED */
}
#endif
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