generic-library/openssl
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Update ECDSA test program to handle ECDSA2 format files.

Browse Source 
Correctly handle hex strings with an odd number of digits.
This commit is contained in:
Dr. Stephen Henson 2011-02-14 19:42:49 +00:00
parent 5d2f1538a0
commit 943a0ceed0
2 changed files with 55 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

56
fips/ecdsa/fips_ecdsavs.c
View File

@ -6,7 +6,7 @@
int main(int argc, char **argv)
{
printf("No FIPS DSA support\n");
printf("No FIPS ECDSA support\n");
return(0);
}
#else
@ -22,11 +22,47 @@ int main(int argc, char **argv)
#include <openssl/objects.h>
static int lookup_curve(const char *curve_name)
static int lookup_curve(char *curve_name, const EVP_MD **pmd)
{
char cname[6];
strncpy(cname, curve_name, 5);
cname[5] = 0;
char *cname, *p;
cname = curve_name + 1;
p = strchr(cname, ']');
if (!p)
{
fprintf(stderr, "Parse error: missing ]\n");
return NID_undef;
}
*p = 0;
p = strchr(cname, ',');
if (p)
{
if (!pmd)
{
fprintf(stderr, "Parse error: unexpected digest\n");
return NID_undef;
}
*p = 0;
p++;
if (!strcmp(p, "SHA-1"))
*pmd = EVP_sha1();
else if (!strcmp(p, "SHA-224"))
*pmd = EVP_sha224();
else if (!strcmp(p, "SHA-256"))
*pmd = EVP_sha256();
else if (!strcmp(p, "SHA-384"))
*pmd = EVP_sha384();
else if (!strcmp(p, "SHA-512"))
*pmd = EVP_sha512();
else
{
fprintf(stderr, "Unknown digest %s\n", p);
return NID_undef;
}
}
else if(pmd)
*pmd = EVP_sha1();
if (!strcmp(cname, "B-163"))
return NID_sect163r2;
if (!strcmp(cname, "B-233"))
@ -65,7 +101,7 @@ static int lookup_curve(const char *curve_name)
static int PKV(void)
{
char buf[1024], lbuf[1024];
char buf[2048], lbuf[2048];
char *keyword, *value;
int curve_nid = NID_undef;
BIGNUM *Qx = NULL, *Qy = NULL;
@ -75,7 +111,7 @@ static int PKV(void)
fputs(buf, stdout);
if (*buf == '[')
{
curve_nid = lookup_curve(buf + 1);
curve_nid = lookup_curve(buf, NULL);
if (curve_nid == NID_undef)
return 0;
@ -109,7 +145,7 @@ static int PKV(void)
static int SigVer(void)
{
char buf[1024], lbuf[1024];
char buf[2048], lbuf[2048];
char *keyword, *value;
unsigned char *msg;
int curve_nid = NID_undef;
@ -117,7 +153,7 @@ static int SigVer(void)
BIGNUM *Qx = NULL, *Qy = NULL;
EC_KEY *key = NULL;
ECDSA_SIG sg, *sig = &sg;
const EVP_MD *digest = EVP_sha1();
const EVP_MD *digest = NULL;
EVP_MD_CTX mctx;
EVP_MD_CTX_init(&mctx);
sig->r = NULL;
@ -127,7 +163,7 @@ static int SigVer(void)
fputs(buf, stdout);
if (*buf == '[')
{
curve_nid = lookup_curve(buf + 1);
curve_nid = lookup_curve(buf, &digest);
if (curve_nid == NID_undef)
return 0;
}

9
fips/fips_utl.h
View File

@ -116,6 +116,15 @@ int hex2bin(const char *in, unsigned char *out)
out[n2++]=ch;
break;
}
/* If input is odd length first digit is least significant: assumes
* all digits valid hex and null terminated which is true for the
* strings we pass.
*/
if (n1 == 1 && strlen(in) & 1)
{
out[n2++] = ch;
continue;
}
out[n2] = ch << 4;
/* second byte */
if ((in[n1] >= '0') && (in[n1] <= '9'))