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Replace last SHA1_ with EVP_ replacement

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This commit is contained in:
Love Hornquist Astrand
2009-08-11 10:00:30 +02:00
parent 18a4b69b48
commit 33fcc11b3f
1 changed files with 16 additions and 6 deletions
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22
lib/krb5/crypto.c
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@@ -4606,6 +4606,7 @@ _krb5_pk_kdf(krb5_context context,
uint32_t counter;
unsigned char *keydata;
unsigned char shaoutput[SHA_DIGEST_LENGTH];
EVP_MD_CTX *m;
if (der_heim_oid_cmp(&asn1_oid_id_pkinit_kdf_ah_sha1, &ai->algorithm) != 0) {
krb5_set_error_message(context, KRB5_PROG_ETYPE_NOSUPP,
@@ -4644,18 +4645,26 @@ _krb5_pk_kdf(krb5_context context,
return ret;
}
m = EVP_MD_CTX_create();
if (m == NULL) {
free(keydata);
free(other.data);
krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
return ENOMEM;
}
offset = 0;
counter = 1;
do {
unsigned char cdata[4];
SHA_CTX m;
SHA1_Init(&m);
EVP_DigestInit_ex(m, EVP_sha1(), NULL);
_krb5_put_int(cdata, counter, 4);
SHA1_Update(&m, cdata, 4);
SHA1_Update(&m, dhdata, dhsize);
SHA1_Update(&m, other.data, other.length);
SHA1_Final(shaoutput, &m);
EVP_DigestUpdate(m, cdata, 4);
EVP_DigestUpdate(m, dhdata, dhsize);
EVP_DigestUpdate(m, other.data, other.length);
EVP_DigestFinal_ex(m, shaoutput, NULL);
memcpy((unsigned char *)keydata + offset,
shaoutput,
@@ -4666,6 +4675,7 @@ _krb5_pk_kdf(krb5_context context,
} while(offset < keylen);
memset(shaoutput, 0, sizeof(shaoutput));
EVP_MD_CTX_destroy(m);
free(other.data);
ret = krb5_random_to_key(context, enctype, keydata, keylen, key);