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Allow any order for signature algorithm string.

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Reviewed-by: Matt Caswell <matt@openssl.org>
This commit is contained in:
Dr. Stephen Henson 2015-07-23 14:57:42 +01:00
parent 3b848c642c
commit 431f458dfc
1 changed files with 19 additions and 13 deletions
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32
ssl/t1_lib.c
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@ -3739,12 +3739,27 @@ typedef struct {
int sigalgs[MAX_SIGALGLEN];
} sig_cb_st;
static void get_sigorhash(int *psig, int *phash, const char *str)
{
if (strcmp(str, "RSA") == 0) {
*psig = EVP_PKEY_RSA;
} else if (strcmp(str, "DSA") == 0) {
*psig = EVP_PKEY_DSA;
} else if (strcmp(str, "ECDSA") == 0) {
*psig = EVP_PKEY_EC;
} else {
*phash = OBJ_sn2nid(str);
if (*phash == NID_undef)
*phash = OBJ_ln2nid(str);
}
}
static int sig_cb(const char *elem, int len, void *arg)
{
sig_cb_st *sarg = arg;
size_t i;
char etmp[20], *p;
int sig_alg, hash_alg;
int sig_alg = NID_undef, hash_alg = NID_undef;
if (elem == NULL)
return 0;
if (sarg->sigalgcnt == MAX_SIGALGLEN)
@ -3761,19 +3776,10 @@ static int sig_cb(const char *elem, int len, void *arg)
if (!*p)
return 0;
if (strcmp(etmp, "RSA") == 0)
sig_alg = EVP_PKEY_RSA;
else if (strcmp(etmp, "DSA") == 0)
sig_alg = EVP_PKEY_DSA;
else if (strcmp(etmp, "ECDSA") == 0)
sig_alg = EVP_PKEY_EC;
else
return 0;
get_sigorhash(&sig_alg, &hash_alg, etmp);
get_sigorhash(&sig_alg, &hash_alg, p);
hash_alg = OBJ_sn2nid(p);
if (hash_alg == NID_undef)
hash_alg = OBJ_ln2nid(p);
if (hash_alg == NID_undef)
if (sig_alg == NID_undef || hash_alg == NID_undef)
return 0;
for (i = 0; i < sarg->sigalgcnt; i += 2) {