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Diffstat (limited to 'thirdparty/openssl/crypto/x509/x509_cmp.c')
-rw-r--r--thirdparty/openssl/crypto/x509/x509_cmp.c498
1 files changed, 498 insertions, 0 deletions
diff --git a/thirdparty/openssl/crypto/x509/x509_cmp.c b/thirdparty/openssl/crypto/x509/x509_cmp.c
new file mode 100644
index 0000000000..49c71b9128
--- /dev/null
+++ b/thirdparty/openssl/crypto/x509/x509_cmp.c
@@ -0,0 +1,498 @@
+/* crypto/x509/x509_cmp.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to. The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * "This product includes cryptographic software written by
+ * Eric Young (eay@cryptsoft.com)"
+ * The word 'cryptographic' can be left out if the rouines from the library
+ * being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ * the apps directory (application code) you must include an acknowledgement:
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed. i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#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(const X509 *a, const X509 *b)
+{
+ int i;
+ X509_CINF *ai, *bi;
+
+ ai = a->cert_info;
+ bi = b->cert_info;
+ i = M_ASN1_INTEGER_cmp(ai->serialNumber, bi->serialNumber);
+ if (i)
+ return (i);
+ return (X509_NAME_cmp(ai->issuer, bi->issuer));
+}
+
+#ifndef OPENSSL_NO_MD5
+unsigned long X509_issuer_and_serial_hash(X509 *a)
+{
+ unsigned long ret = 0;
+ EVP_MD_CTX ctx;
+ unsigned char md[16];
+ 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(const X509 *a, const X509 *b)
+{
+ return (X509_NAME_cmp(a->cert_info->issuer, b->cert_info->issuer));
+}
+
+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(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);
+}
+
+unsigned long X509_issuer_name_hash(X509 *x)
+{
+ 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);
+}
+
+ASN1_INTEGER *X509_get_serialNumber(X509 *a)
+{
+ return (a->cert_info->serialNumber);
+}
+
+unsigned long X509_subject_name_hash(X509 *x)
+{
+ 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. 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(const X509 *a, const X509 *b)
+{
+ int rv;
+ /* ensure hash is valid */
+ X509_check_purpose((X509 *)a, -1, 0);
+ X509_check_purpose((X509 *)b, -1, 0);
+
+ rv = memcmp(a->sha1_hash, b->sha1_hash, SHA_DIGEST_LENGTH);
+ if (rv)
+ return rv;
+ /* Check for match against stored encoding too */
+ if (!a->cert_info->enc.modified && !b->cert_info->enc.modified) {
+ rv = (int)(a->cert_info->enc.len - b->cert_info->enc.len);
+ if (rv)
+ return rv;
+ return memcmp(a->cert_info->enc.enc, b->cert_info->enc.enc,
+ a->cert_info->enc.len);
+ }
+ return rv;
+}
+#endif
+
+int X509_NAME_cmp(const X509_NAME *a, const X509_NAME *b)
+{
+ int ret;
+
+ /* Ensure canonical encoding is present and up to date */
+
+ if (!a->canon_enc || a->modified) {
+ ret = i2d_X509_NAME((X509_NAME *)a, NULL);
+ if (ret < 0)
+ return -2;
+ }
+
+ if (!b->canon_enc || b->modified) {
+ ret = i2d_X509_NAME((X509_NAME *)b, NULL);
+ if (ret < 0)
+ return -2;
+ }
+
+ ret = a->canon_enclen - b->canon_enclen;
+
+ if (ret)
+ return ret;
+
+ return memcmp(a->canon_enc, b->canon_enc, a->canon_enclen);
+
+}
+
+unsigned long X509_NAME_hash(X509_NAME *x)
+{
+ unsigned long ret = 0;
+ unsigned char md[SHA_DIGEST_LENGTH];
+
+ /* 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 */
+X509 *X509_find_by_issuer_and_serial(STACK_OF(X509) *sk, X509_NAME *name,
+ ASN1_INTEGER *serial)
+{
+ int i;
+ X509_CINF cinf;
+ X509 x, *x509 = NULL;
+
+ if (!sk)
+ return NULL;
+
+ x.cert_info = &cinf;
+ cinf.serialNumber = serial;
+ cinf.issuer = name;
+
+ for (i = 0; i < sk_X509_num(sk); i++) {
+ x509 = sk_X509_value(sk, i);
+ if (X509_issuer_and_serial_cmp(x509, &x) == 0)
+ return (x509);
+ }
+ return (NULL);
+}
+
+X509 *X509_find_by_subject(STACK_OF(X509) *sk, X509_NAME *name)
+{
+ X509 *x509;
+ int i;
+
+ for (i = 0; i < sk_X509_num(sk); i++) {
+ x509 = sk_X509_value(sk, i);
+ if (X509_NAME_cmp(X509_get_subject_name(x509), name) == 0)
+ return (x509);
+ }
+ return (NULL);
+}
+
+EVP_PKEY *X509_get_pubkey(X509 *x)
+{
+ if ((x == NULL) || (x->cert_info == NULL))
+ return (NULL);
+ 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;
+ int ret;
+
+ xk = X509_get_pubkey(x);
+
+ if (xk)
+ ret = EVP_PKEY_cmp(xk, k);
+ else
+ ret = -2;
+
+ switch (ret) {
+ case 1:
+ break;
+ case 0:
+ X509err(X509_F_X509_CHECK_PRIVATE_KEY, X509_R_KEY_VALUES_MISMATCH);
+ break;
+ 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);
+ }
+ 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.
+ */
+
+#ifndef OPENSSL_NO_EC
+
+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;
+
+ return X509_V_OK;
+}
+
+int X509_chain_check_suiteb(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_CRL_check_suiteb(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);
+}
+
+#else
+int X509_chain_check_suiteb(int *perror_depth, X509 *x, STACK_OF(X509) *chain,
+ unsigned long flags)
+{
+ return 0;
+}
+
+int X509_CRL_check_suiteb(X509_CRL *crl, EVP_PKEY *pk, unsigned long flags)
+{
+ return 0;
+}
+
+#endif
+/*
+ * Not strictly speaking an "up_ref" as a STACK doesn't have a reference
+ * count but it has the same effect by duping the STACK and upping the ref of
+ * each X509 structure.
+ */
+STACK_OF(X509) *X509_chain_up_ref(STACK_OF(X509) *chain)
+{
+ STACK_OF(X509) *ret;
+ int i;
+ ret = sk_X509_dup(chain);
+ for (i = 0; i < sk_X509_num(ret); i++) {
+ X509 *x = sk_X509_value(ret, i);
+ CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
+ }
+ return ret;
+}
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