/*
* hash_tester.c
* --------------
* This program sends several commands to the coretest_hashes subsystem
* in order to verify the SHA-1, SHA-256 and SHA-512/x hash function
* cores.
*
* Note: This version of the program talks to the FPGA over an I2C bus.
*
* The single and dual block test cases are taken from the
* NIST KAT document:
* http://csrc.nist.gov/groups/ST/toolkit/documents/Examples/SHA_All.pdf
*
*
* Authors: Joachim Strömbergson, Paul Selkirk
* Copyright (c) 2014, SUNET
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <unistd.h>
#include <time.h>
#include <linux/i2c-dev.h>
#include <sys/ioctl.h>
#include <arpa/inet.h>
#include <ctype.h>
/* I2C configuration */
#define I2C_DEV "/dev/i2c-2"
#define I2C_SHA1_ADDR 0x1e
#define I2C_SHA256_ADDR 0x1f
#define I2C_SHA512_ADDR 0x20
#define MODE_SHA_512_224 0x00
#define MODE_SHA_512_256 0x01
#define MODE_SHA_384 0x02
#define MODE_SHA_512 0x03
int i2cfd;
int debug = 0;
#define SHA1_BLOCK_BITS 512
#define SHA1_BLOCK_BYTES SHA1_BLOCK_BITS/8
#define SHA1_DIGEST_BITS 160
#define SHA1_DIGEST_BYTES SHA1_DIGEST_BITS/8
#define SHA256_BLOCK_BITS 512
#define SHA256_BLOCK_BYTES SHA256_BLOCK_BITS/8
#define SHA256_DIGEST_BITS 256
#define SHA256_DIGEST_BYTES SHA256_DIGEST_BITS/8
#define SHA512_BLOCK_BITS 1024
#define SHA512_BLOCK_BYTES SHA512_BLOCK_BITS/8
#define SHA512_224_DIGEST_BITS 224
#define SHA512_224_DIGEST_BYTES SHA512_224_DIGEST_BITS/8
#define SHA512_256_DIGEST_BITS 256
#define SHA512_256_DIGEST_BYTES SHA512_256_DIGEST_BITS/8
#define SHA384_DIGEST_BITS 384
#define SHA384_DIGEST_BYTES SHA384_DIGEST_BITS/8
#define SHA512_DIGEST_BITS 512
#define SHA512_DIGEST_BYTES SHA512_DIGEST_BITS/8
/* SHA-1/SHA-256 One Block Message Sample
Input Message: "abc" */
const uint8_t NIST_512_SINGLE[] =
{ 0x61, 0x62, 0x63, 0x80, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18 };
const uint8_t SHA1_SINGLE_DIGEST[] =
{ 0xa9, 0x99, 0x3e, 0x36, 0x47, 0x06, 0x81, 0x6a,
0xba, 0x3e, 0x25, 0x71, 0x78, 0x50, 0xc2, 0x6c,
0x9c, 0xd0, 0xd8, 0x9d };
const uint8_t SHA256_SINGLE_DIGEST[] =
{ 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 };
/* SHA-1/SHA-256 Two Block Message Sample
Input Message: "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" */
const uint8_t NIST_512_DOUBLE0[] =
{ 0x61, 0x62, 0x63, 0x64, 0x62, 0x63, 0x64, 0x65,
0x63, 0x64, 0x65, 0x66, 0x64, 0x65, 0x66, 0x67,
0x65, 0x66, 0x67, 0x68, 0x66, 0x67, 0x68, 0x69,
0x67, 0x68, 0x69, 0x6A, 0x68, 0x69, 0x6A, 0x6B,
0x69, 0x6A, 0x6B, 0x6C, 0x6A, 0x6B, 0x6C, 0x6D,
0x6B, 0x6C, 0x6D, 0x6E, 0x6C, 0x6D, 0x6E, 0x6F,
0x6D, 0x6E, 0x6F, 0x70, 0x6E, 0x6F, 0x70, 0x71,
0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
const uint8_t NIST_512_DOUBLE1[] =
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xC0 };
const uint8_t SHA1_DOUBLE_DIGEST[] =
{ 0x84, 0x98, 0x3E, 0x44, 0x1C, 0x3B, 0xD2, 0x6E,
0xBA, 0xAE, 0x4A, 0xA1, 0xF9, 0x51, 0x29, 0xE5,
0xE5, 0x46, 0x70, 0xF1 };
const uint8_t SHA256_DOUBLE_DIGEST[] =
{ 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 };
/* SHA-512 One Block Message Sample
Input Message: "abc" */
const uint8_t NIST_1024_SINGLE[] =
{ 0x61, 0x62, 0x63, 0x80, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18 };
const uint8_t SHA512_224_SINGLE_DIGEST[] =
{ 0x46, 0x34, 0x27, 0x0f, 0x70, 0x7b, 0x6a, 0x54,
0xda, 0xae, 0x75, 0x30, 0x46, 0x08, 0x42, 0xe2,
0x0e, 0x37, 0xed, 0x26, 0x5c, 0xee, 0xe9, 0xa4,
0x3e, 0x89, 0x24, 0xaa };
const uint8_t SHA512_256_SINGLE_DIGEST[] =
{ 0x53, 0x04, 0x8e, 0x26, 0x81, 0x94, 0x1e, 0xf9,
0x9b, 0x2e, 0x29, 0xb7, 0x6b, 0x4c, 0x7d, 0xab,
0xe4, 0xc2, 0xd0, 0xc6, 0x34, 0xfc, 0x6d, 0x46,
0xe0, 0xe2, 0xf1, 0x31, 0x07, 0xe7, 0xaf, 0x23 };
const uint8_t SHA384_SINGLE_DIGEST[] =
{ 0xcb, 0x00, 0x75, 0x3f, 0x45, 0xa3, 0x5e, 0x8b,
0xb5, 0xa0, 0x3d, 0x69, 0x9a, 0xc6, 0x50, 0x07,
0x27, 0x2c, 0x32, 0xab, 0x0e, 0xde, 0xd1, 0x63,
0x1a, 0x8b, 0x60, 0x5a, 0x43, 0xff, 0x5b, 0xed,
0x80, 0x86, 0x07, 0x2b, 0xa1, 0xe7, 0xcc, 0x23,
0x58, 0xba, 0xec, 0xa1, 0x34, 0xc8, 0x25, 0xa7 };
const uint8_t SHA512_SINGLE_DIGEST[] =
{ 0xdd, 0xaf, 0x35, 0xa1, 0x93, 0x61, 0x7a, 0xba,
0xcc, 0x41, 0x73, 0x49, 0xae, 0x20, 0x41, 0x31,
0x12, 0xe6, 0xfa, 0x4e, 0x89, 0xa9, 0x7e, 0xa2,
0x0a, 0x9e, 0xee, 0xe6, 0x4b, 0x55, 0xd3, 0x9a,
0x21, 0x92, 0x99, 0x2a, 0x27, 0x4f, 0xc1, 0xa8,
0x36, 0xba, 0x3c, 0x23, 0xa3, 0xfe, 0xeb, 0xbd,
0x45, 0x4d, 0x44, 0x23, 0x64, 0x3c, 0xe8, 0x0e,
0x2a, 0x9a, 0xc9, 0x4f, 0xa5, 0x4c, 0xa4, 0x9f };
/* SHA-512 Two Block Message Sample
Input Message: "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"
"hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu" */
const uint8_t NIST_1024_DOUBLE0[] =
{ 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68,
0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69,
0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a,
0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b,
0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c,
0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d,
0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e,
0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70,
0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71,
0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72,
0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73,
0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74,
0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75,
0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
const uint8_t NIST_1024_DOUBLE1[] =
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x80 };
const uint8_t SHA512_224_DOUBLE_DIGEST[] =
{ 0x23, 0xfe, 0xc5, 0xbb, 0x94, 0xd6, 0x0b, 0x23,
0x30, 0x81, 0x92, 0x64, 0x0b, 0x0c, 0x45, 0x33,
0x35, 0xd6, 0x64, 0x73, 0x4f, 0xe4, 0x0e, 0x72,
0x68, 0x67, 0x4a, 0xf9 };
const uint8_t SHA512_256_DOUBLE_DIGEST[] =
{ 0x39, 0x28, 0xe1, 0x84, 0xfb, 0x86, 0x90, 0xf8,
0x40, 0xda, 0x39, 0x88, 0x12, 0x1d, 0x31, 0xbe,
0x65, 0xcb, 0x9d, 0x3e, 0xf8, 0x3e, 0xe6, 0x14,
0x6f, 0xea, 0xc8, 0x61, 0xe1, 0x9b, 0x56, 0x3a };
const uint8_t SHA384_DOUBLE_DIGEST[] =
{ 0x09, 0x33, 0x0c, 0x33, 0xf7, 0x11, 0x47, 0xe8,
0x3d, 0x19, 0x2f, 0xc7, 0x82, 0xcd, 0x1b, 0x47,
0x53, 0x11, 0x1b, 0x17, 0x3b, 0x3b, 0x05, 0xd2,
0x2f, 0xa0, 0x80, 0x86, 0xe3, 0xb0, 0xf7, 0x12,
0xfc, 0xc7, 0xc7, 0x1a, 0x55, 0x7e, 0x2d, 0xb9,
0x66, 0xc3, 0xe9, 0xfa, 0x91, 0x74, 0x60, 0x39 };
const uint8_t SHA512_DOUBLE_DIGEST[] =
{ 0x8e, 0x95, 0x9b, 0x75, 0xda, 0xe3, 0x13, 0xda,
0x8c, 0xf4, 0xf7, 0x28, 0x14, 0xfc, 0x14, 0x3f,
0x8f, 0x77, 0x79, 0xc6, 0xeb, 0x9f, 0x7f, 0xa1,
0x72, 0x99, 0xae, 0xad, 0xb6, 0x88, 0x90, 0x18,
0x50, 0x1d, 0x28, 0x9e, 0x49, 0x00, 0xf7, 0xe4,
0x33, 0x1b, 0x99, 0xde, 0xc4, 0xb5, 0x43, 0x3a,
0xc7, 0xd3, 0x29, 0xee, 0xb6, 0xdd, 0x26, 0x54,
0x5e, 0x96, 0xe5, 0x5b, 0x87, 0x4b, 0xe9, 0x09 };
/* ---------------- I2C low-level code ---------------- */
int i2c_open(char *dev)
{
i2cfd = open(dev, O_RDWR);
if (i2cfd < 0) {
fprintf(stderr, "Unable to open %s: ", dev);
perror("");
i2cfd = 0;
return 1;
}
return 0;
}
int i2c_addr(int addr)
{
static int cur_addr = 0;
if (addr != cur_addr) {
if (ioctl(i2cfd, I2C_SLAVE, addr) < 0) {
fprintf(stderr, "Unable to set I2C slave device 0x%02x: ", addr);
perror("");
return 1;
}
addr = cur_addr;
}
return 0;
}
int i2c_close(void)
{
return close(i2cfd);
}
int i2c_write(const uint8_t *buf, int len)
{
if (write(i2cfd, buf, len) != len) {
perror("i2c write failed");
return 1;
}
return 0;
}
int i2c_read(uint8_t *b)
{
/* read() on the i2c device only returns one byte at a time,
* and tc_get_resp() needs to parse the response one byte at a time
*/
if (read(i2cfd, b, 1) != 1) {
perror("i2c read failed");
return 1;
}
return 0;
}
/* ---------------- test-case low-level code ---------------- */
int tc_write(int addr, const uint8_t *buf, int len)
{
/* we only set the i2c device addr on tc_write, because test cases always
* write before reading, plus test cases never call tc_read directly
*/
if (i2c_addr(addr) != 0)
return 1;
if (debug) {
int i;
printf("write [");
for (i = 0; i < len; ++i)
printf(" %02x", buf[i]);
printf(" ]\n");
}
return i2c_write(buf, len);
}
int tc_read(uint8_t *buf, int len)
{
int i;
if (debug) printf("read [");
for (i = 0; i < len; ++i) {
if (i2c_read(&buf[i]) != 0) {
if (debug) printf(" ]\n");
return 1;
}
if (debug) printf(" %02x", buf[i]);
}
if (debug) printf(" ]\n");
return 0;
}
int tc_expected(const uint8_t *expected, int len)
{
uint8_t *buf;
int i;
buf = malloc(len);
if (buf == NULL) {
perror("malloc");
return 1;
}
if (tc_read(buf, len) != 0)
goto errout;
for (i = 0; i < len; ++i)
if (buf[i] != expected[i]) {
fprintf(stderr, "response byte %d: expected 0x%02x, got 0x%02x\n",
i, expected[i], buf[i]);
goto errout;
}
free(buf);
return 0;
errout:
free(buf);
return 1;
}
/* ---------------- SHA-1 test cases ---------------- */
#define BLOCK_LEN SHA1_BLOCK_BYTES
#define DIGEST_LEN SHA1_DIGEST_BYTES
/* TC1: Read name and version from SHA-1 core. */
int TC1(int addr)
{
return 0;
}
/* TC2: SHA-1 Single block message test as specified by NIST. */
int TC2(int addr)
{
const uint8_t *block = NIST_512_SINGLE;
const uint8_t *expected = SHA1_SINGLE_DIGEST;
printf("TC2: Single block message test for SHA-1.\n");
if (addr == 0)
addr = I2C_SHA1_ADDR;
return
tc_write(addr, block, BLOCK_LEN) ||
tc_expected(expected, DIGEST_LEN);
}
/* TC3: SHA-1 Double block message test as specified by NIST. */
int TC3(int addr)
{
const uint8_t *block[2] = { NIST_512_DOUBLE0, NIST_512_DOUBLE1 };
const uint8_t *expected = SHA1_DOUBLE_DIGEST;
printf("TC3: Double block message test for SHA-1.\n");
if (addr == 0)
addr = I2C_SHA1_ADDR;
return
tc_write(addr, block[0], BLOCK_LEN) ||
tc_write(addr, block[1], BLOCK_LEN) ||
tc_expected(expected, DIGEST_LEN);
}
/* ---------------- SHA-256 test cases ---------------- */
#undef BLOCK_LEN
#define BLOCK_LEN SHA256_BLOCK_BYTES
#undef DIGEST_LEN
#define DIGEST_LEN SHA256_DIGEST_BYTES
int TC4(int addr)
{
return 0;
}
/* TC5: SHA-256 Single block message test as specified by NIST. */
int TC5(int addr)
{
const uint8_t *block = NIST_512_SINGLE;
const uint8_t *expected = SHA256_SINGLE_DIGEST;
printf("TC5: Single block message test for SHA-256.\n");
if (addr == 0)
addr = I2C_SHA256_ADDR;
return
tc_write(addr, block, BLOCK_LEN) ||
tc_expected(expected, DIGEST_LEN);
}
/* TC6: SHA-256 Double block message test as specified by NIST. */
int TC6(int addr)
{
const uint8_t *block[2] = { NIST_512_DOUBLE0, NIST_512_DOUBLE1 };
const uint8_t *expected = SHA256_DOUBLE_DIGEST;
printf("TC6: Double block message test for SHA-256.\n");
if (addr == 0)
addr = I2C_SHA256_ADDR;
return
tc_write(addr, block[0], BLOCK_LEN) ||
tc_write(addr, block[1], BLOCK_LEN) ||
tc_expected(expected, DIGEST_LEN);
}
/* TC7: SHA-256 Huge message test. */
int TC7(int addr)
{
static const uint8_t block[] =
{ 0xaa, 0x55, 0xaa, 0x55, 0xde, 0xad, 0xbe, 0xef,
0x55, 0xaa, 0x55, 0xaa, 0xf0, 0x0f, 0xf0, 0x0f,
0xaa, 0x55, 0xaa, 0x55, 0xde, 0xad, 0xbe, 0xef,
0x55, 0xaa, 0x55, 0xaa, 0xf0, 0x0f, 0xf0, 0x0f,
0xaa, 0x55, 0xaa, 0x55, 0xde, 0xad, 0xbe, 0xef,
0x55, 0xaa, 0x55, 0xaa, 0xf0, 0x0f, 0xf0, 0x0f,
0xaa, 0x55, 0xaa, 0x55, 0xde, 0xad, 0xbe, 0xef,
0x55, 0xaa, 0x55, 0xaa, 0xf0, 0x0f, 0xf0, 0x0f };
/* final digest after 1000 iterations */
static const uint8_t expected[] =
{ 0x76, 0x38, 0xf3, 0xbc, 0x50, 0x0d, 0xd1, 0xa6,
0x58, 0x6d, 0xd4, 0xd0, 0x1a, 0x15, 0x51, 0xaf,
0xd8, 0x21, 0xd2, 0x35, 0x2f, 0x91, 0x9e, 0x28,
0xd5, 0x84, 0x2f, 0xab, 0x03, 0xa4, 0x0f, 0x2a };
int i, n = 1000;
printf("TC7: Message with %d blocks test for SHA-256.\n", n);
if (addr == 0)
addr = I2C_SHA256_ADDR;
/* Write blocks to SHA-256. */
for (i = 0; i < n; ++i)
if (tc_write(addr, block, BLOCK_LEN) != 0)
return 1;
/* Extract the final digest. */
return tc_expected(expected, DIGEST_LEN);
}
/* ---------------- SHA-512 test cases ---------------- */
#undef BLOCK_LEN
#define BLOCK_LEN SHA512_BLOCK_BYTES
/* TC8: Read name and version from SHA-512 core. */
int TC8(int addr)
{
return 0;
}
/* TC9: SHA-512 Single block message test as specified by NIST.
We do this for all modes. */
int tc9(int addr, const uint8_t *expected, int digest_len)
{
const uint8_t *block = NIST_1024_SINGLE;
return
tc_write(addr, block, BLOCK_LEN) ||
tc_expected(expected, digest_len);
}
int TC9(int addr)
{
if (addr == 0)
addr = I2C_SHA512_ADDR;
printf("TC9-1: Single block message test for SHA-512/224.\n");
if (tc9(addr + MODE_SHA_512_224, SHA512_224_SINGLE_DIGEST,
sizeof(SHA512_224_SINGLE_DIGEST)) != 0)
return 1;
printf("TC9-2: Single block message test for SHA-512/256.\n");
if (tc9(addr + MODE_SHA_512_256, SHA512_256_SINGLE_DIGEST,
sizeof(SHA512_256_SINGLE_DIGEST)) != 0)
return 1;
printf("TC9-3: Single block message test for SHA-384.\n");
if (tc9(addr + MODE_SHA_384, SHA384_SINGLE_DIGEST,
sizeof(SHA384_SINGLE_DIGEST)) != 0)
return 1;
printf("TC9-4: Single block message test for SHA-512.\n");
if (tc9(addr + MODE_SHA_512, SHA512_SINGLE_DIGEST,
sizeof(SHA512_SINGLE_DIGEST)) != 0)
return 1;
return 0;
}
/* TC10: SHA-512 Double block message test as specified by NIST.
We do this for all modes. */
int tc10(int addr, const uint8_t *expected, int digest_len)
{
const uint8_t *block[2] = { NIST_1024_DOUBLE0, NIST_1024_DOUBLE1 };
return
tc_write(addr, block[0], BLOCK_LEN) ||
tc_write(addr, block[1], BLOCK_LEN) ||
tc_expected(expected, digest_len);
}
int TC10(int addr)
{
if (addr == 0)
addr = I2C_SHA512_ADDR;
printf("TC10-1: Double block message test for SHA-512/224.\n");
if (tc10(addr + MODE_SHA_512_224, SHA512_224_DOUBLE_DIGEST,
sizeof(SHA512_224_DOUBLE_DIGEST)) != 0)
return 1;
printf("TC10-2: Double block message test for SHA-512/256.\n");
if (tc10(addr + MODE_SHA_512_256, SHA512_256_DOUBLE_DIGEST,
sizeof(SHA512_256_DOUBLE_DIGEST)) != 0)
return 1;
printf("TC10-3: Double block message test for SHA-384.\n");
if (tc10(addr + MODE_SHA_384, SHA384_DOUBLE_DIGEST,
sizeof(SHA384_DOUBLE_DIGEST)) != 0)
return 1;
printf("TC10-4: Double block message test for SHA-512.\n");
if (tc10(addr + MODE_SHA_512, SHA512_DOUBLE_DIGEST,
sizeof(SHA512_DOUBLE_DIGEST)) != 0)
return 1;
return 0;
}
/* ---------------- main ---------------- */
int main(int argc, char *argv[])
{
typedef int (*tcfp)(int);
tcfp all_tests[] = { TC1, TC2, TC3, TC4, TC5, TC6, TC7, TC9, TC10
};
tcfp sha1_tests[] = { TC1, TC2, TC3 };
tcfp sha256_tests[] = { TC4, TC5, TC6, TC7 };
tcfp sha512_tests[] = { TC9, TC10 };
char *usage = "Usage: %s [-h] [-d] [-i I2C_device] [-a I2C_addr] tc...\n";
char *dev = I2C_DEV;
int addr = 0;
int i, j, opt;
while ((opt = getopt(argc, argv, "h?di:a:")) != -1) {
switch (opt) {
case 'h':
case '?':
printf(usage, argv[0]);
return 0;
case 'd':
debug = 1;
break;
case 'i':
dev = optarg;
break;
case 'a':
addr = (int)strtol(optarg, NULL, 0);
if ((addr < 0x03) || (addr > 0x77)) {
fprintf(stderr, "addr must be between 0x03 and 0x77\n");
return 1;
}
break;
default:
fprintf(stderr, usage, argv[0]);
return 1;
}
}
if (i2c_open(dev) != 0)
return 1;
/* no args == run all tests */
if (optind >= argc) {
for (j = 0; j < sizeof(all_tests)/sizeof(all_tests[0]); ++j)
if (all_tests[j](addr) != 0)
return 1;
return 0;
}
for (i = optind; i < argc; ++i) {
if (strcmp(argv[i], "sha1") == 0) {
for (j = 0; j < sizeof(sha1_tests)/sizeof(sha1_tests[0]); ++j)
if (sha1_tests[j](addr) != 0)
return 1;
}
else if (strcmp(argv[i], "sha256") == 0) {
for (j = 0; j < sizeof(sha256_tests)/sizeof(sha256_tests[0]); ++j)
if (sha256_tests[j](addr) != 0)
return 1;
}
else if (strcmp(argv[i], "sha512") == 0) {
for (j = 0; j < sizeof(sha512_tests)/sizeof(sha512_tests[0]); ++j)
if (sha512_tests[j](addr) != 0)
return 1;
}
else if (strcmp(argv[i], "all") == 0) {
for (j = 0; j < sizeof(all_tests)/sizeof(all_tests[0]); ++j)
if (all_tests[j](addr) != 0)
return 1;
}
else if (isdigit(argv[i][0]) &&
(((j = atoi(argv[i])) > 0) &&
(j <= sizeof(all_tests)/sizeof(all_tests[0])))) {
if (all_tests[j - 1](addr) != 0)
return 1;
}
else {
fprintf(stderr, "unknown test case %s\n", argv[i]);
return 1;
}
}
return 0;
}
