--- /dev/null
+/* 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 <openssl/x509.h>
+
+#include <openssl/asn1.h>
+#include <openssl/digest.h>
+#include <openssl/err.h>
+#include <openssl/evp.h>
+#include <openssl/obj.h>
+
+#include "internal.h"
+
+
+int x509_digest_sign_algorithm(EVP_MD_CTX *ctx, X509_ALGOR *algor) {
+ EVP_PKEY *pkey = EVP_PKEY_CTX_get0_pkey(ctx->pctx);
+ if (pkey == NULL) {
+ OPENSSL_PUT_ERROR(ASN1, ASN1_R_CONTEXT_NOT_INITIALISED);
+ return 0;
+ }
+
+ if (EVP_PKEY_id(pkey) == EVP_PKEY_RSA) {
+ int pad_mode;
+ if (!EVP_PKEY_CTX_get_rsa_padding(ctx->pctx, &pad_mode)) {
+ return 0;
+ }
+ /* RSA-PSS has special signature algorithm logic. */
+ if (pad_mode == RSA_PKCS1_PSS_PADDING) {
+ return x509_rsa_ctx_to_pss(ctx, algor);
+ }
+ }
+
+ if (EVP_PKEY_id(pkey) == EVP_PKEY_ED25519) {
+ return X509_ALGOR_set0(algor, OBJ_nid2obj(NID_ED25519), V_ASN1_UNDEF, NULL);
+ }
+
+ /* Default behavior: look up the OID for the algorithm/hash pair and encode
+ * that. */
+ const EVP_MD *digest = EVP_MD_CTX_md(ctx);
+ if (digest == NULL) {
+ OPENSSL_PUT_ERROR(ASN1, ASN1_R_CONTEXT_NOT_INITIALISED);
+ return 0;
+ }
+
+ int sign_nid;
+ if (!OBJ_find_sigid_by_algs(&sign_nid, EVP_MD_type(digest),
+ EVP_PKEY_id(pkey))) {
+ OPENSSL_PUT_ERROR(ASN1, ASN1_R_DIGEST_AND_KEY_TYPE_NOT_SUPPORTED);
+ return 0;
+ }
+
+ /* RSA signature algorithms include an explicit NULL parameter. Others omit
+ * it. */
+ int paramtype =
+ (EVP_PKEY_id(pkey) == EVP_PKEY_RSA) ? V_ASN1_NULL : V_ASN1_UNDEF;
+ X509_ALGOR_set0(algor, OBJ_nid2obj(sign_nid), paramtype, NULL);
+ return 1;
+}
+
+int x509_digest_verify_init(EVP_MD_CTX *ctx, X509_ALGOR *sigalg,
+ EVP_PKEY *pkey) {
+ /* Convert the signature OID into digest and public key OIDs. */
+ int sigalg_nid = OBJ_obj2nid(sigalg->algorithm);
+ int digest_nid, pkey_nid;
+ if (!OBJ_find_sigid_algs(sigalg_nid, &digest_nid, &pkey_nid)) {
+ OPENSSL_PUT_ERROR(ASN1, ASN1_R_UNKNOWN_SIGNATURE_ALGORITHM);
+ return 0;
+ }
+
+ /* Check the public key OID matches the public key type. */
+ if (pkey_nid != EVP_PKEY_id(pkey)) {
+ OPENSSL_PUT_ERROR(ASN1, ASN1_R_WRONG_PUBLIC_KEY_TYPE);
+ return 0;
+ }
+
+ /* NID_undef signals that there are custom parameters to set. */
+ if (digest_nid == NID_undef) {
+ if (sigalg_nid == NID_rsassaPss) {
+ return x509_rsa_pss_to_ctx(ctx, sigalg, pkey);
+ }
+ if (sigalg_nid == NID_ED25519) {
+ if (sigalg->parameter != NULL) {
+ OPENSSL_PUT_ERROR(X509, X509_R_INVALID_PARAMETER);
+ return 0;
+ }
+ return EVP_DigestVerifyInit(ctx, NULL, NULL, NULL, pkey);
+ }
+ OPENSSL_PUT_ERROR(ASN1, ASN1_R_UNKNOWN_SIGNATURE_ALGORITHM);
+ return 0;
+ }
+
+ /* Otherwise, initialize with the digest from the OID. */
+ const EVP_MD *digest = EVP_get_digestbynid(digest_nid);
+ if (digest == NULL) {
+ OPENSSL_PUT_ERROR(ASN1, ASN1_R_UNKNOWN_MESSAGE_DIGEST_ALGORITHM);
+ return 0;
+ }
+
+ return EVP_DigestVerifyInit(ctx, NULL, digest, NULL, pkey);
+}
git://repos.xcallymotion.com / motion2.git / blobdiff