#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <openssl/bio.h>
#include <openssl/evp.h>
#include <openssl/hmac.h>
#include <openssl/err.h>
#include <openssl/bn.h>
#include <openssl/x509v3.h>
#ifndef OPENSSL_FIPS
int main(int argc, char *argv[])
{
printf("No FIPS HMAC support\n");
return(0);
}
#else
#include <openssl/fips.h>
#include "fips_utl.h"
static int hmac_test(const EVP_MD *md, FILE *out, FILE *in);
static int print_hmac(const EVP_MD *md, FILE *out,
unsigned char *Key, int Klen,
unsigned char *Msg, int Msglen, int Tlen);
int main(int argc, char **argv)
{
FILE *in = NULL, *out = NULL;
int ret = 1;
if(!FIPS_mode_set(1))
{
do_print_errors();
goto end;
}
if (argc == 1)
in = stdin;
else
in = fopen(argv[1], "r");
if (argc < 2)
out = stdout;
else
out = fopen(argv[2], "w");
if (!in)
{
fprintf(stderr, "FATAL input initialization error\n");
goto end;
}
if (!out)
{
fprintf(stderr, "FATAL output initialization error\n");
goto end;
}
if (!hmac_test(EVP_sha1(), out, in))
{
fprintf(stderr, "FATAL hmac file processing error\n");
goto end;
}
else
ret = 0;
end:
if (ret)
do_print_errors();
if (in && (in != stdin))
fclose(in);
if (out && (out != stdout))
fclose(out);
return ret;
}
#define HMAC_TEST_MAXLINELEN 1024
int hmac_test(const EVP_MD *md, FILE *out, FILE *in)
{
char *linebuf, *olinebuf, *p, *q;
char *keyword, *value;
unsigned char *Key = NULL, *Msg = NULL;
int Count, Klen, Tlen;
long Keylen, Msglen;
int ret = 0;
int lnum = 0;
olinebuf = OPENSSL_malloc(HMAC_TEST_MAXLINELEN);
linebuf = OPENSSL_malloc(HMAC_TEST_MAXLINELEN);
if (!linebuf || !olinebuf)
goto error;
Count = -1;
Klen = -1;
Tlen = -1;
while (fgets(olinebuf, HMAC_TEST_MAXLINELEN, in))
{
lnum++;
strcpy(linebuf, olinebuf);
keyword = linebuf;
while (isspace((unsigned char)*keyword))
keyword++;
p = strchr(linebuf, '=');
if (!p)
{
if (fputs(olinebuf, out) < 0)
goto error;
continue;
}
q = p - 1;
while (isspace((unsigned char)*q))
*q-- = 0;
*p = 0;
value = p + 1;
while (isspace((unsigned char)*value))
value++;
p = value + strlen(value) - 1;
while (*p == '\n' || isspace((unsigned char)*p))
*p-- = 0;
if (!strcmp(keyword,"[L") && *p==']')
{
switch (atoi(value))
{
case 20: md=EVP_sha1(); break;
case 28: md=EVP_sha224(); break;
case 32: md=EVP_sha256(); break;
case 48: md=EVP_sha384(); break;
case 64: md=EVP_sha512(); break;
default: goto parse_error;
}
}
else if (!strcmp(keyword, "Count"))
{
if (Count != -1)
goto parse_error;
Count = atoi(value);
if (Count < 0)
goto parse_error;
}
else if (!strcmp(keyword, "Klen"))
{
if (Klen != -1)
goto parse_error;
Klen = atoi(value);
if (Klen < 0)
goto parse_error;
}
else if (!strcmp(keyword, "Tlen"))
{
if (Tlen != -1)
goto parse_error;
Tlen = atoi(value);
if (Tlen < 0)
goto parse_error;
}
else if (!strcmp(keyword, "Msg"))
{
if (Msg)
goto parse_error;
Msg = hex2bin_m(value, &Msglen);
if (!Msg)
goto parse_error;
}
else if (!strcmp(keyword, "Key"))
{
if (Key)
goto parse_error;
Key = hex2bin_m(value, &Keylen);
if (!Key)
goto parse_error;
}
else if (!strcmp(keyword, "Mac"))
continue;
else
goto parse_error;
fputs(olinebuf, out);
if (Key && Msg && (Tlen > 0) && (Klen > 0))
{
if (!print_hmac(md, out, Key, Klen, Msg, Msglen, Tlen))
goto error;
OPENSSL_free(Key);
Key = NULL;
OPENSSL_free(Msg);
Msg = NULL;
Klen = -1;
Tlen = -1;
Count = -1;
}
}
ret = 1;
error:
if (olinebuf)
OPENSSL_free(olinebuf);
if (linebuf)
OPENSSL_free(linebuf);
if (Key)
OPENSSL_free(Key);
if (Msg)
OPENSSL_free(Msg);
return ret;
parse_error:
fprintf(stderr, "FATAL parse error processing line %d\n", lnum);
goto error;
}
static int print_hmac(const EVP_MD *emd, FILE *out,
unsigned char *Key, int Klen,
unsigned char *Msg, int Msglen, int Tlen)
{
int i, mdlen;
unsigned char md[EVP_MAX_MD_SIZE];
if (!HMAC(emd, Key, Klen, Msg, Msglen, md,
(unsigned int *)&mdlen))
{
fputs("Error calculating HMAC\n", stderr);
return 0;
}
if (Tlen > mdlen)
{
fputs("Parameter error, Tlen > HMAC length\n", stderr);
return 0;
}
fputs("Mac = ", out);
for (i = 0; i < Tlen; i++)
fprintf(out, "%02x", md[i]);
fputs("\n", out);
return 1;
}
#endif