/*	$OpenBSD: sha256test.c,v 1.7 2021/12/29 22:56:25 tb Exp $	*/
/* ====================================================================
 * Copyright (c) 2004 The OpenSSL Project.  All rights reserved.
 * ====================================================================
 */
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#include <openssl/sha.h>
#include <openssl/evp.h>

#if defined(OPENSSL_NO_SHA) || defined(OPENSSL_NO_SHA256)
int
main(int argc, char *argv[])
{
	printf("No SHA256 support\n");
	return (0);
}
#else

unsigned char app_b1[SHA256_DIGEST_LENGTH] = {
	0xba, 0x78, 0x16, 0xbf, 0x8f, 0x01, 0xcf, 0xea,
	0x41, 0x41, 0x40, 0xde, 0x5d, 0xae, 0x22, 0x23,
	0xb0, 0x03, 0x61, 0xa3, 0x96, 0x17, 0x7a, 0x9c,
	0xb4, 0x10, 0xff, 0x61, 0xf2, 0x00, 0x15, 0xad,
};

unsigned char app_b2[SHA256_DIGEST_LENGTH] = {
	0x24, 0x8d, 0x6a, 0x61, 0xd2, 0x06, 0x38, 0xb8,
	0xe5, 0xc0, 0x26, 0x93, 0x0c, 0x3e, 0x60, 0x39,
	0xa3, 0x3c, 0xe4, 0x59, 0x64, 0xff, 0x21, 0x67,
	0xf6, 0xec, 0xed, 0xd4, 0x19, 0xdb, 0x06, 0xc1,
};

unsigned char app_b3[SHA256_DIGEST_LENGTH] = {
	0xcd, 0xc7, 0x6e, 0x5c, 0x99, 0x14, 0xfb, 0x92,
	0x81, 0xa1, 0xc7, 0xe2, 0x84, 0xd7, 0x3e, 0x67,
	0xf1, 0x80, 0x9a, 0x48, 0xa4, 0x97, 0x20, 0x0e,
	0x04, 0x6d, 0x39, 0xcc, 0xc7, 0x11, 0x2c, 0xd0,
};

unsigned char addenum_1[SHA224_DIGEST_LENGTH] = {
	0x23, 0x09, 0x7d, 0x22, 0x34, 0x05, 0xd8, 0x22,
	0x86, 0x42, 0xa4, 0x77, 0xbd, 0xa2, 0x55, 0xb3,
	0x2a, 0xad, 0xbc, 0xe4, 0xbd, 0xa0, 0xb3, 0xf7,
	0xe3, 0x6c, 0x9d, 0xa7,
};

unsigned char addenum_2[SHA224_DIGEST_LENGTH] = {
	0x75, 0x38, 0x8b, 0x16, 0x51, 0x27, 0x76, 0xcc,
	0x5d, 0xba, 0x5d, 0xa1, 0xfd, 0x89, 0x01, 0x50,
	0xb0, 0xc6, 0x45, 0x5c, 0xb4, 0xf5, 0x8b, 0x19,
	0x52, 0x52, 0x25, 0x25,
};

unsigned char addenum_3[SHA224_DIGEST_LENGTH] = {
	0x20, 0x79, 0x46, 0x55, 0x98, 0x0c, 0x91, 0xd8,
	0xbb, 0xb4, 0xc1, 0xea, 0x97, 0x61, 0x8a, 0x4b,
	0xf0, 0x3f, 0x42, 0x58, 0x19, 0x48, 0xb2, 0xee,
	0x4e, 0xe7, 0xad, 0x67,
};

int
main(int argc, char **argv) {
	unsigned char md[SHA256_DIGEST_LENGTH];
	int		i;
	int		ret = 1;
	EVP_MD_CTX	*evp = NULL;

	fprintf(stdout, "Testing SHA-256 ");

	EVP_Digest("abc",3,md,NULL,EVP_sha256(),NULL);
	if (memcmp(md, app_b1, sizeof(app_b1))) {
		fflush(stdout);
		fprintf(stderr, "\nTEST 1 of 3 failed.\n");
		goto err;
	}
	fprintf(stdout, ".");
	fflush(stdout);

	EVP_Digest(
	    "abcdbcde""cdefdefg""efghfghi""ghijhijk"
	    "ijkljklm""klmnlmno""mnopnopq",
	    56, md, NULL, EVP_sha256(), NULL);
	if (memcmp(md, app_b2, sizeof(app_b2))) {
		fflush(stdout);
		fprintf(stderr, "\nTEST 2 of 3 failed.\n");
		goto err;
	}
	fprintf(stdout, ".");
	fflush(stdout);

	if ((evp = EVP_MD_CTX_new()) == NULL) {
		fflush(stdout);
		fprintf(stderr, "\nEVP_MD_CTX_new() failed.\n");
		goto err;
	}
	if (!EVP_DigestInit_ex(evp, EVP_sha256(), NULL))
		goto err;
	for (i = 0; i < 1000000; i += 160) {
		if (!EVP_DigestUpdate(evp,
		    "aaaaaaaa""aaaaaaaa""aaaaaaaa""aaaaaaaa"
		    "aaaaaaaa""aaaaaaaa""aaaaaaaa""aaaaaaaa"
		    "aaaaaaaa""aaaaaaaa""aaaaaaaa""aaaaaaaa"
		    "aaaaaaaa""aaaaaaaa""aaaaaaaa""aaaaaaaa"
		    "aaaaaaaa""aaaaaaaa""aaaaaaaa""aaaaaaaa",
		    (1000000 - i) < 160 ? 1000000 - i : 160))
		goto err;
	}
	if (!EVP_DigestFinal_ex(evp, md, NULL))
		goto err;
	if (!EVP_MD_CTX_reset(evp))
		goto err;

	if (memcmp(md, app_b3, sizeof(app_b3))) {
		fflush(stdout);
		fprintf(stderr, "\nTEST 3 of 3 failed.\n");
		goto err;
	}
	fprintf(stdout, ".");
	fflush(stdout);

	fprintf(stdout, " passed.\n"); fflush(stdout);

	fprintf(stdout, "Testing SHA-224 ");

	if (!EVP_Digest("abc",3,md,NULL,EVP_sha224(),NULL))
		goto err;
	if (memcmp(md, addenum_1, sizeof(addenum_1))) {
		fflush(stdout);
		fprintf(stderr, "\nTEST 1 of 3 failed.\n");
		goto err;
	}
	fprintf(stdout, ".");
	fflush(stdout);

	if (!EVP_Digest(
	    "abcdbcde""cdefdefg""efghfghi""ghijhijk"
	    "ijkljklm""klmnlmno""mnopnopq",
	    56, md, NULL, EVP_sha224(), NULL))
		goto err;
	if (memcmp(md, addenum_2, sizeof(addenum_2))) {
		fflush(stdout);
		fprintf(stderr, "\nTEST 2 of 3 failed.\n");
		goto err;
	}
	fprintf(stdout, ".");
	fflush(stdout);

	if (!EVP_DigestInit_ex (evp, EVP_sha224(), NULL))
		goto err;
	for (i = 0; i < 1000000; i += 64) {
		if (!EVP_DigestUpdate(evp,
		    "aaaaaaaa""aaaaaaaa""aaaaaaaa""aaaaaaaa"
		    "aaaaaaaa""aaaaaaaa""aaaaaaaa""aaaaaaaa",
		    (1000000 - i) < 64 ? 1000000 - i : 64))
			goto err;
	}
	if (!EVP_DigestFinal_ex(evp, md, NULL))
		goto err;
	if (!EVP_MD_CTX_reset(evp))
		goto err;

	if (memcmp(md, addenum_3, sizeof(addenum_3))) {
		fflush(stdout);
		fprintf(stderr, "\nTEST 3 of 3 failed.\n");
		goto err;
	}
	fprintf(stdout, ".");
	fflush(stdout);

	fprintf(stdout, " passed.\n");
	fflush(stdout);

	ret = 0;

 err:
	EVP_MD_CTX_free(evp);

	return ret;
}
#endif
