*/
#include <stdio.h>
+#include <ctype.h>
#include "cryptlib.h"
#include <openssl/asn1.h>
#include <openssl/objects.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
-int X509_issuer_and_serial_cmp(X509 *a, X509 *b)
+int X509_issuer_and_serial_cmp(const X509 *a, const X509 *b)
{
int i;
X509_CINF *ai,*bi;
return(X509_NAME_cmp(ai->issuer,bi->issuer));
}
-#ifndef NO_MD5
+#ifndef OPENSSL_NO_MD5
unsigned long X509_issuer_and_serial_hash(X509 *a)
{
unsigned long ret=0;
- MD5_CTX ctx;
+ EVP_MD_CTX ctx;
unsigned char md[16];
- char str[256];
-
- X509_NAME_oneline(a->cert_info->issuer,str,256);
- ret=strlen(str);
- MD5_Init(&ctx);
- MD5_Update(&ctx,(unsigned char *)str,ret);
- MD5_Update(&ctx,(unsigned char *)a->cert_info->serialNumber->data,
- (unsigned long)a->cert_info->serialNumber->length);
- MD5_Final(&(md[0]),&ctx);
+ char *f;
+
+ EVP_MD_CTX_init(&ctx);
+ f=X509_NAME_oneline(a->cert_info->issuer,NULL,0);
+ if (!EVP_DigestInit_ex(&ctx, EVP_md5(), NULL))
+ goto err;
+ if (!EVP_DigestUpdate(&ctx,(unsigned char *)f,strlen(f)))
+ goto err;
+ OPENSSL_free(f);
+ if(!EVP_DigestUpdate(&ctx,(unsigned char *)a->cert_info->serialNumber->data,
+ (unsigned long)a->cert_info->serialNumber->length))
+ goto err;
+ if (!EVP_DigestFinal_ex(&ctx,&(md[0]),NULL))
+ goto err;
ret=( ((unsigned long)md[0] )|((unsigned long)md[1]<<8L)|
((unsigned long)md[2]<<16L)|((unsigned long)md[3]<<24L)
)&0xffffffffL;
+ err:
+ EVP_MD_CTX_cleanup(&ctx);
return(ret);
}
#endif
-int X509_issuer_name_cmp(X509 *a, X509 *b)
+int X509_issuer_name_cmp(const X509 *a, const X509 *b)
{
return(X509_NAME_cmp(a->cert_info->issuer,b->cert_info->issuer));
}
-int X509_subject_name_cmp(X509 *a, X509 *b)
+int X509_subject_name_cmp(const X509 *a, const X509 *b)
{
return(X509_NAME_cmp(a->cert_info->subject,b->cert_info->subject));
}
-int X509_CRL_cmp(X509_CRL *a, X509_CRL *b)
+int X509_CRL_cmp(const X509_CRL *a, const X509_CRL *b)
{
return(X509_NAME_cmp(a->crl->issuer,b->crl->issuer));
}
+#ifndef OPENSSL_NO_SHA
+int X509_CRL_match(const X509_CRL *a, const X509_CRL *b)
+ {
+ return memcmp(a->sha1_hash, b->sha1_hash, 20);
+ }
+#endif
+
X509_NAME *X509_get_issuer_name(X509 *a)
{
return(a->cert_info->issuer);
return(X509_NAME_hash(x->cert_info->issuer));
}
+#ifndef OPENSSL_NO_MD5
+unsigned long X509_issuer_name_hash_old(X509 *x)
+ {
+ return(X509_NAME_hash_old(x->cert_info->issuer));
+ }
+#endif
+
X509_NAME *X509_get_subject_name(X509 *a)
{
return(a->cert_info->subject);
{
return(X509_NAME_hash(x->cert_info->subject));
}
+
+#ifndef OPENSSL_NO_MD5
+unsigned long X509_subject_name_hash_old(X509 *x)
+ {
+ return(X509_NAME_hash_old(x->cert_info->subject));
+ }
+#endif
+
+#ifndef OPENSSL_NO_SHA
/* Compare two certificates: they must be identical for
- * this to work.
+ * this to work. NB: Although "cmp" operations are generally
+ * prototyped to take "const" arguments (eg. for use in
+ * STACKs), the way X509 handling is - these operations may
+ * involve ensuring the hashes are up-to-date and ensuring
+ * certain cert information is cached. So this is the point
+ * where the "depth-first" constification tree has to halt
+ * with an evil cast.
*/
-int X509_cmp(X509 *a, X509 *b)
+int X509_cmp(const X509 *a, const X509 *b)
{
/* ensure hash is valid */
- X509_check_purpose(a, -1, 0);
- X509_check_purpose(b, -1, 0);
+ X509_check_purpose((X509 *)a, -1, 0);
+ X509_check_purpose((X509 *)b, -1, 0);
+
return memcmp(a->sha1_hash, b->sha1_hash, SHA_DIGEST_LENGTH);
}
+#endif
-int X509_NAME_cmp(X509_NAME *a, X509_NAME *b)
+
+int X509_NAME_cmp(const X509_NAME *a, const X509_NAME *b)
{
- int i,j;
- X509_NAME_ENTRY *na,*nb;
-
- if (sk_X509_NAME_ENTRY_num(a->entries)
- != sk_X509_NAME_ENTRY_num(b->entries))
- return sk_X509_NAME_ENTRY_num(a->entries)
- -sk_X509_NAME_ENTRY_num(b->entries);
- for (i=sk_X509_NAME_ENTRY_num(a->entries)-1; i>=0; i--)
+ int ret;
+
+ /* Ensure canonical encoding is present and up to date */
+
+ if (!a->canon_enc || a->modified)
{
- na=sk_X509_NAME_ENTRY_value(a->entries,i);
- nb=sk_X509_NAME_ENTRY_value(b->entries,i);
- j=na->value->length-nb->value->length;
- if (j) return(j);
- j=memcmp(na->value->data,nb->value->data,
- na->value->length);
- if (j) return(j);
- j=na->set-nb->set;
- if (j) return(j);
+ ret = i2d_X509_NAME((X509_NAME *)a, NULL);
+ if (ret < 0)
+ return -2;
}
- /* We will check the object types after checking the values
- * since the values will more often be different than the object
- * types. */
- for (i=sk_X509_NAME_ENTRY_num(a->entries)-1; i>=0; i--)
+ if (!b->canon_enc || b->modified)
{
- na=sk_X509_NAME_ENTRY_value(a->entries,i);
- nb=sk_X509_NAME_ENTRY_value(b->entries,i);
- j=OBJ_cmp(na->object,nb->object);
- if (j) return(j);
+ ret = i2d_X509_NAME((X509_NAME *)b, NULL);
+ if (ret < 0)
+ return -2;
}
- return(0);
+
+ ret = a->canon_enclen - b->canon_enclen;
+
+ if (ret)
+ return ret;
+
+ return memcmp(a->canon_enc, b->canon_enc, a->canon_enclen);
+
}
-#ifndef NO_MD5
-/* I now DER encode the name and hash it. Since I cache the DER encoding,
- * this is reasonably effiecent. */
unsigned long X509_NAME_hash(X509_NAME *x)
{
unsigned long ret=0;
- unsigned char md[16];
- unsigned char str[256],*p,*pp;
- int i;
+ unsigned char md[SHA_DIGEST_LENGTH];
- i=i2d_X509_NAME(x,NULL);
- if (i > sizeof(str))
- p=Malloc(i);
- else
- p=str;
-
- pp=p;
- i2d_X509_NAME(x,&pp);
- MD5((unsigned char *)p,i,&(md[0]));
- if (p != str) Free(p);
+ /* Make sure X509_NAME structure contains valid cached encoding */
+ i2d_X509_NAME(x,NULL);
+ if (!EVP_Digest(x->canon_enc, x->canon_enclen, md, NULL, EVP_sha1(),
+ NULL))
+ return 0;
ret=( ((unsigned long)md[0] )|((unsigned long)md[1]<<8L)|
((unsigned long)md[2]<<16L)|((unsigned long)md[3]<<24L)
)&0xffffffffL;
return(ret);
}
+
+
+#ifndef OPENSSL_NO_MD5
+/* I now DER encode the name and hash it. Since I cache the DER encoding,
+ * this is reasonably efficient. */
+
+unsigned long X509_NAME_hash_old(X509_NAME *x)
+ {
+ EVP_MD_CTX md_ctx;
+ unsigned long ret=0;
+ unsigned char md[16];
+
+ /* Make sure X509_NAME structure contains valid cached encoding */
+ i2d_X509_NAME(x,NULL);
+ EVP_MD_CTX_init(&md_ctx);
+ EVP_MD_CTX_set_flags(&md_ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
+ if (EVP_DigestInit_ex(&md_ctx, EVP_md5(), NULL)
+ && EVP_DigestUpdate(&md_ctx, x->bytes->data, x->bytes->length)
+ && EVP_DigestFinal_ex(&md_ctx,md,NULL))
+ ret=(((unsigned long)md[0] )|((unsigned long)md[1]<<8L)|
+ ((unsigned long)md[2]<<16L)|((unsigned long)md[3]<<24L)
+ )&0xffffffffL;
+ EVP_MD_CTX_cleanup(&md_ctx);
+
+ return(ret);
+ }
#endif
/* Search a stack of X509 for a match */
return(X509_PUBKEY_get(x->cert_info->key));
}
+ASN1_BIT_STRING *X509_get0_pubkey_bitstr(const X509 *x)
+ {
+ if(!x) return NULL;
+ return x->cert_info->key->public_key;
+ }
+
int X509_check_private_key(X509 *x, EVP_PKEY *k)
{
- EVP_PKEY *xk=NULL;
- int ok=0;
+ EVP_PKEY *xk;
+ int ret;
xk=X509_get_pubkey(x);
- if (xk->type != k->type)
- {
- X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_KEY_TYPE_MISMATCH);
- goto err;
- }
- switch (k->type)
+
+ if (xk)
+ ret = EVP_PKEY_cmp(xk, k);
+ else
+ ret = -2;
+
+ switch (ret)
{
-#ifndef NO_RSA
- case EVP_PKEY_RSA:
- if (BN_cmp(xk->pkey.rsa->n,k->pkey.rsa->n) != 0
- || BN_cmp(xk->pkey.rsa->e,k->pkey.rsa->e) != 0)
- {
- X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_KEY_VALUES_MISMATCH);
- goto err;
- }
+ case 1:
break;
-#endif
-#ifndef NO_DSA
- case EVP_PKEY_DSA:
- if (BN_cmp(xk->pkey.dsa->pub_key,k->pkey.dsa->pub_key) != 0)
- {
- X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_KEY_VALUES_MISMATCH);
- goto err;
- }
+ case 0:
+ X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_KEY_VALUES_MISMATCH);
break;
-#endif
-#ifndef NO_DH
- case EVP_PKEY_DH:
- /* No idea */
- X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_CANT_CHECK_DH_KEY);
- goto err;
-#endif
- default:
+ case -1:
+ X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_KEY_TYPE_MISMATCH);
+ break;
+ case -2:
X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_UNKNOWN_KEY_TYPE);
- goto err;
}
+ if (xk)
+ EVP_PKEY_free(xk);
+ if (ret > 0)
+ return 1;
+ return 0;
+ }
+
+/* Check a suite B algorithm is permitted: pass in a public key and
+ * the NID of its signature (or 0 if no signature). The pflags is
+ * a pointer to a flags field which must contain the suite B verification
+ * flags.
+ */
+
+static int check_suite_b(EVP_PKEY *pkey, int sign_nid, unsigned long *pflags)
+ {
+ const EC_GROUP *grp = NULL;
+ int curve_nid;
+ if (pkey && pkey->type == EVP_PKEY_EC)
+ grp = EC_KEY_get0_group(pkey->pkey.ec);
+ if (!grp)
+ return X509_V_ERR_SUITE_B_INVALID_ALGORITHM;
+ curve_nid = EC_GROUP_get_curve_name(grp);
+ /* Check curve is consistent with LOS */
+ if (curve_nid == NID_secp384r1) /* P-384 */
+ {
+ /* Check signature algorithm is consistent with
+ * curve.
+ */
+ if (sign_nid != -1 && sign_nid != NID_ecdsa_with_SHA384)
+ return X509_V_ERR_SUITE_B_INVALID_SIGNATURE_ALGORITHM;
+ if (!(*pflags & X509_V_FLAG_SUITEB_192_LOS))
+ return X509_V_ERR_SUITE_B_LOS_NOT_ALLOWED;
+ /* If we encounter P-384 we cannot use P-256 later */
+ *pflags &= ~X509_V_FLAG_SUITEB_128_LOS_ONLY;
+ }
+ else if (curve_nid == NID_X9_62_prime256v1) /* P-256 */
+ {
+ if (sign_nid != -1 && sign_nid != NID_ecdsa_with_SHA256)
+ return X509_V_ERR_SUITE_B_INVALID_SIGNATURE_ALGORITHM;
+ if (!(*pflags & X509_V_FLAG_SUITEB_128_LOS_ONLY))
+ return X509_V_ERR_SUITE_B_LOS_NOT_ALLOWED;
+ }
+ else
+ return X509_V_ERR_SUITE_B_INVALID_CURVE;
- ok=1;
-err:
- EVP_PKEY_free(xk);
- return(ok);
+ return X509_V_OK;
}
+
+int X509_check_suiteb_chain(int *perror_depth, X509 *x, STACK_OF(X509) *chain,
+ unsigned long flags)
+ {
+ int rv, i, sign_nid;
+ EVP_PKEY *pk = NULL;
+ unsigned long tflags;
+ if (!(flags & X509_V_FLAG_SUITEB_128_LOS))
+ return X509_V_OK;
+ tflags = flags;
+ /* If no EE certificate passed in must be first in chain */
+ if (x == NULL)
+ {
+ x = sk_X509_value(chain, 0);
+ i = 1;
+ }
+ else
+ i = 0;
+
+ if (X509_get_version(x) != 2)
+ {
+ rv = X509_V_ERR_SUITE_B_INVALID_VERSION;
+ /* Correct error depth */
+ i = 0;
+ goto end;
+ }
+
+ pk = X509_get_pubkey(x);
+ /* Check EE key only */
+ rv = check_suite_b(pk, -1, &tflags);
+ if (rv != X509_V_OK)
+ {
+ /* Correct error depth */
+ i = 0;
+ goto end;
+ }
+ for(; i < sk_X509_num(chain); i++)
+ {
+ sign_nid = X509_get_signature_nid(x);
+ x = sk_X509_value(chain, i);
+ if (X509_get_version(x) != 2)
+ {
+ rv = X509_V_ERR_SUITE_B_INVALID_VERSION;
+ goto end;
+ }
+ EVP_PKEY_free(pk);
+ pk = X509_get_pubkey(x);
+ rv = check_suite_b(pk, sign_nid, &tflags);
+ if (rv != X509_V_OK)
+ goto end;
+ }
+
+ /* Final check: root CA signature */
+ rv = check_suite_b(pk, X509_get_signature_nid(x), &tflags);
+ end:
+ if (pk)
+ EVP_PKEY_free(pk);
+ if (rv != X509_V_OK)
+ {
+ /* Invalid signature or LOS errors are for previous cert */
+ if ((rv == X509_V_ERR_SUITE_B_INVALID_SIGNATURE_ALGORITHM
+ || rv == X509_V_ERR_SUITE_B_LOS_NOT_ALLOWED) && i)
+ i--;
+ /* If we have LOS error and flags changed then we are signing
+ * P-384 with P-256. Use more meaninggul error.
+ */
+ if (rv == X509_V_ERR_SUITE_B_LOS_NOT_ALLOWED && flags != tflags)
+ rv = X509_V_ERR_SUITE_B_CANNOT_SIGN_P_384_WITH_P_256;
+ if (perror_depth)
+ *perror_depth = i;
+ }
+ return rv;
+ }
+
+int X509_check_suiteb_crl(X509_CRL *crl, EVP_PKEY *pk, unsigned long flags)
+ {
+ int sign_nid;
+ if (!(flags & X509_V_FLAG_SUITEB_128_LOS))
+ return X509_V_OK;
+ sign_nid = OBJ_obj2nid(crl->crl->sig_alg->algorithm);
+ return check_suite_b(pk, sign_nid, &flags);
+ }
+