-/* pmeth_fn.c */
-/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
- * project 2006.
- */
-/* ====================================================================
- * Copyright (c) 2006 The OpenSSL Project. All rights reserved.
- *
- * 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 above 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 acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * licensing@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED 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 OpenSSL PROJECT OR
- * ITS 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.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
+/*
+ * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
*
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <stdlib.h>
+#include "internal/cryptlib.h"
#include <openssl/objects.h>
-#include "cryptlib.h"
#include <openssl/evp.h>
-#include "evp_locl.h"
+#include "internal/evp_int.h"
+
+#define M_check_autoarg(ctx, arg, arglen, err) \
+ if (ctx->pmeth->flags & EVP_PKEY_FLAG_AUTOARGLEN) { \
+ size_t pksize = (size_t)EVP_PKEY_size(ctx->pkey); \
+ \
+ if (pksize == 0) { \
+ EVPerr(err, EVP_R_INVALID_KEY); /*ckerr_ignore*/ \
+ return 0; \
+ } \
+ if (!arg) { \
+ *arglen = pksize; \
+ return 1; \
+ } \
+ if (*arglen < pksize) { \
+ EVPerr(err, EVP_R_BUFFER_TOO_SMALL); /*ckerr_ignore*/ \
+ return 0; \
+ } \
+ }
int EVP_PKEY_sign_init(EVP_PKEY_CTX *ctx)
- {
- int ret;
- if (!ctx || !ctx->pmeth || !ctx->pmeth->sign)
- {
- EVPerr(EVP_F_EVP_PKEY_SIGN_INIT,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
- return -2;
- }
- ctx->operation = EVP_PKEY_OP_SIGN;
- if (!ctx->pmeth->sign_init)
- return 1;
- ret = ctx->pmeth->sign_init(ctx);
- if (ret <= 0)
- ctx->operation = EVP_PKEY_OP_UNDEFINED;
- return ret;
- }
+{
+ int ret;
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->sign) {
+ EVPerr(EVP_F_EVP_PKEY_SIGN_INIT,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ ctx->operation = EVP_PKEY_OP_SIGN;
+ if (!ctx->pmeth->sign_init)
+ return 1;
+ ret = ctx->pmeth->sign_init(ctx);
+ if (ret <= 0)
+ ctx->operation = EVP_PKEY_OP_UNDEFINED;
+ return ret;
+}
int EVP_PKEY_sign(EVP_PKEY_CTX *ctx,
- unsigned char *sig, int *siglen,
- const unsigned char *tbs, int tbslen)
- {
- if (!ctx || !ctx->pmeth || !ctx->pmeth->sign)
- {
- EVPerr(EVP_F_EVP_PKEY_SIGN,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
- return -2;
- }
- if (ctx->operation != EVP_PKEY_OP_SIGN)
- {
- EVPerr(EVP_F_EVP_PKEY_SIGN, EVP_R_OPERATON_NOT_INITIALIZED);
- return -1;
- }
- return ctx->pmeth->sign(ctx, sig, siglen, tbs, tbslen);
- }
+ unsigned char *sig, size_t *siglen,
+ const unsigned char *tbs, size_t tbslen)
+{
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->sign) {
+ EVPerr(EVP_F_EVP_PKEY_SIGN,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ if (ctx->operation != EVP_PKEY_OP_SIGN) {
+ EVPerr(EVP_F_EVP_PKEY_SIGN, EVP_R_OPERATON_NOT_INITIALIZED);
+ return -1;
+ }
+ M_check_autoarg(ctx, sig, siglen, EVP_F_EVP_PKEY_SIGN)
+ return ctx->pmeth->sign(ctx, sig, siglen, tbs, tbslen);
+}
int EVP_PKEY_verify_init(EVP_PKEY_CTX *ctx)
- {
- int ret;
- if (!ctx || !ctx->pmeth || !ctx->pmeth->verify)
- {
- EVPerr(EVP_F_EVP_PKEY_VERIFY_INIT,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
- return -2;
- }
- ctx->operation = EVP_PKEY_OP_VERIFY;
- if (!ctx->pmeth->verify_init)
- return 1;
- ret = ctx->pmeth->verify_init(ctx);
- if (ret <= 0)
- ctx->operation = EVP_PKEY_OP_UNDEFINED;
- return ret;
- }
+{
+ int ret;
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->verify) {
+ EVPerr(EVP_F_EVP_PKEY_VERIFY_INIT,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ ctx->operation = EVP_PKEY_OP_VERIFY;
+ if (!ctx->pmeth->verify_init)
+ return 1;
+ ret = ctx->pmeth->verify_init(ctx);
+ if (ret <= 0)
+ ctx->operation = EVP_PKEY_OP_UNDEFINED;
+ return ret;
+}
int EVP_PKEY_verify(EVP_PKEY_CTX *ctx,
- const unsigned char *sig, int siglen,
- const unsigned char *tbs, int tbslen)
- {
- if (!ctx || !ctx->pmeth || !ctx->pmeth->verify)
- {
- EVPerr(EVP_F_EVP_PKEY_VERIFY,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
- return -2;
- }
- if (ctx->operation != EVP_PKEY_OP_VERIFY)
- {
- EVPerr(EVP_F_EVP_PKEY_VERIFY, EVP_R_OPERATON_NOT_INITIALIZED);
- return -1;
- }
- return ctx->pmeth->verify(ctx, sig, siglen, tbs, tbslen);
- }
+ const unsigned char *sig, size_t siglen,
+ const unsigned char *tbs, size_t tbslen)
+{
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->verify) {
+ EVPerr(EVP_F_EVP_PKEY_VERIFY,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ if (ctx->operation != EVP_PKEY_OP_VERIFY) {
+ EVPerr(EVP_F_EVP_PKEY_VERIFY, EVP_R_OPERATON_NOT_INITIALIZED);
+ return -1;
+ }
+ return ctx->pmeth->verify(ctx, sig, siglen, tbs, tbslen);
+}
int EVP_PKEY_verify_recover_init(EVP_PKEY_CTX *ctx)
- {
- int ret;
- if (!ctx || !ctx->pmeth || !ctx->pmeth->verify_recover)
- {
- EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER_INIT,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
- return -2;
- }
- ctx->operation = EVP_PKEY_OP_VERIFYRECOVER;
- if (!ctx->pmeth->verify_recover_init)
- return 1;
- ret = ctx->pmeth->verify_recover_init(ctx);
- if (ret <= 0)
- ctx->operation = EVP_PKEY_OP_UNDEFINED;
- return ret;
- }
+{
+ int ret;
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->verify_recover) {
+ EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER_INIT,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ ctx->operation = EVP_PKEY_OP_VERIFYRECOVER;
+ if (!ctx->pmeth->verify_recover_init)
+ return 1;
+ ret = ctx->pmeth->verify_recover_init(ctx);
+ if (ret <= 0)
+ ctx->operation = EVP_PKEY_OP_UNDEFINED;
+ return ret;
+}
int EVP_PKEY_verify_recover(EVP_PKEY_CTX *ctx,
- unsigned char *rout, int *routlen,
- const unsigned char *sig, int siglen)
- {
- if (!ctx || !ctx->pmeth || !ctx->pmeth->verify_recover)
- {
- EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
- return -2;
- }
- if (ctx->operation != EVP_PKEY_OP_VERIFYRECOVER)
- {
- EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER, EVP_R_OPERATON_NOT_INITIALIZED);
- return -1;
- }
- return ctx->pmeth->verify_recover(ctx, rout, routlen, sig, siglen);
- }
+ unsigned char *rout, size_t *routlen,
+ const unsigned char *sig, size_t siglen)
+{
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->verify_recover) {
+ EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ if (ctx->operation != EVP_PKEY_OP_VERIFYRECOVER) {
+ EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER, EVP_R_OPERATON_NOT_INITIALIZED);
+ return -1;
+ }
+ M_check_autoarg(ctx, rout, routlen, EVP_F_EVP_PKEY_VERIFY_RECOVER)
+ return ctx->pmeth->verify_recover(ctx, rout, routlen, sig, siglen);
+}
int EVP_PKEY_encrypt_init(EVP_PKEY_CTX *ctx)
- {
- int ret;
- if (!ctx || !ctx->pmeth || !ctx->pmeth->encrypt)
- {
- EVPerr(EVP_F_EVP_PKEY_ENCRYPT_INIT,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
- return -2;
- }
- ctx->operation = EVP_PKEY_OP_ENCRYPT;
- if (!ctx->pmeth->encrypt_init)
- return 1;
- ret = ctx->pmeth->encrypt_init(ctx);
- if (ret <= 0)
- ctx->operation = EVP_PKEY_OP_UNDEFINED;
- return ret;
- }
+{
+ int ret;
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->encrypt) {
+ EVPerr(EVP_F_EVP_PKEY_ENCRYPT_INIT,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ ctx->operation = EVP_PKEY_OP_ENCRYPT;
+ if (!ctx->pmeth->encrypt_init)
+ return 1;
+ ret = ctx->pmeth->encrypt_init(ctx);
+ if (ret <= 0)
+ ctx->operation = EVP_PKEY_OP_UNDEFINED;
+ return ret;
+}
int EVP_PKEY_encrypt(EVP_PKEY_CTX *ctx,
- unsigned char *out, int *outlen,
- const unsigned char *in, int inlen)
- {
- if (!ctx || !ctx->pmeth || !ctx->pmeth->encrypt)
- {
- EVPerr(EVP_F_EVP_PKEY_ENCRYPT,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
- return -2;
- }
- if (ctx->operation != EVP_PKEY_OP_ENCRYPT)
- {
- EVPerr(EVP_F_EVP_PKEY_ENCRYPT, EVP_R_OPERATON_NOT_INITIALIZED);
- return -1;
- }
- return ctx->pmeth->encrypt(ctx, out, outlen, in, inlen);
- }
+ unsigned char *out, size_t *outlen,
+ const unsigned char *in, size_t inlen)
+{
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->encrypt) {
+ EVPerr(EVP_F_EVP_PKEY_ENCRYPT,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ if (ctx->operation != EVP_PKEY_OP_ENCRYPT) {
+ EVPerr(EVP_F_EVP_PKEY_ENCRYPT, EVP_R_OPERATON_NOT_INITIALIZED);
+ return -1;
+ }
+ M_check_autoarg(ctx, out, outlen, EVP_F_EVP_PKEY_ENCRYPT)
+ return ctx->pmeth->encrypt(ctx, out, outlen, in, inlen);
+}
int EVP_PKEY_decrypt_init(EVP_PKEY_CTX *ctx)
- {
- int ret;
- if (!ctx || !ctx->pmeth || !ctx->pmeth->decrypt)
- {
- EVPerr(EVP_F_EVP_PKEY_DECRYPT_INIT,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
- return -2;
- }
- ctx->operation = EVP_PKEY_OP_DECRYPT;
- if (!ctx->pmeth->decrypt_init)
- return 1;
- ret = ctx->pmeth->decrypt_init(ctx);
- if (ret <= 0)
- ctx->operation = EVP_PKEY_OP_UNDEFINED;
- return ret;
- }
+{
+ int ret;
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->decrypt) {
+ EVPerr(EVP_F_EVP_PKEY_DECRYPT_INIT,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ ctx->operation = EVP_PKEY_OP_DECRYPT;
+ if (!ctx->pmeth->decrypt_init)
+ return 1;
+ ret = ctx->pmeth->decrypt_init(ctx);
+ if (ret <= 0)
+ ctx->operation = EVP_PKEY_OP_UNDEFINED;
+ return ret;
+}
int EVP_PKEY_decrypt(EVP_PKEY_CTX *ctx,
- unsigned char *out, int *outlen,
- const unsigned char *in, int inlen)
- {
- if (!ctx || !ctx->pmeth || !ctx->pmeth->decrypt)
- {
- EVPerr(EVP_F_EVP_PKEY_DECRYPT,
- EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
- return -2;
- }
- if (ctx->operation != EVP_PKEY_OP_DECRYPT)
- {
- EVPerr(EVP_F_EVP_PKEY_DECRYPT, EVP_R_OPERATON_NOT_INITIALIZED);
- return -1;
- }
- return ctx->pmeth->decrypt(ctx, out, outlen, in, inlen);
- }
+ unsigned char *out, size_t *outlen,
+ const unsigned char *in, size_t inlen)
+{
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->decrypt) {
+ EVPerr(EVP_F_EVP_PKEY_DECRYPT,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ if (ctx->operation != EVP_PKEY_OP_DECRYPT) {
+ EVPerr(EVP_F_EVP_PKEY_DECRYPT, EVP_R_OPERATON_NOT_INITIALIZED);
+ return -1;
+ }
+ M_check_autoarg(ctx, out, outlen, EVP_F_EVP_PKEY_DECRYPT)
+ return ctx->pmeth->decrypt(ctx, out, outlen, in, inlen);
+}
+
+int EVP_PKEY_derive_init(EVP_PKEY_CTX *ctx)
+{
+ int ret;
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->derive) {
+ EVPerr(EVP_F_EVP_PKEY_DERIVE_INIT,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ ctx->operation = EVP_PKEY_OP_DERIVE;
+ if (!ctx->pmeth->derive_init)
+ return 1;
+ ret = ctx->pmeth->derive_init(ctx);
+ if (ret <= 0)
+ ctx->operation = EVP_PKEY_OP_UNDEFINED;
+ return ret;
+}
+
+int EVP_PKEY_derive_set_peer(EVP_PKEY_CTX *ctx, EVP_PKEY *peer)
+{
+ int ret;
+ if (!ctx || !ctx->pmeth
+ || !(ctx->pmeth->derive || ctx->pmeth->encrypt || ctx->pmeth->decrypt)
+ || !ctx->pmeth->ctrl) {
+ EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ if (ctx->operation != EVP_PKEY_OP_DERIVE
+ && ctx->operation != EVP_PKEY_OP_ENCRYPT
+ && ctx->operation != EVP_PKEY_OP_DECRYPT) {
+ EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER,
+ EVP_R_OPERATON_NOT_INITIALIZED);
+ return -1;
+ }
+
+ ret = ctx->pmeth->ctrl(ctx, EVP_PKEY_CTRL_PEER_KEY, 0, peer);
+
+ if (ret <= 0)
+ return ret;
+
+ if (ret == 2)
+ return 1;
+
+ if (!ctx->pkey) {
+ EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER, EVP_R_NO_KEY_SET);
+ return -1;
+ }
+
+ if (ctx->pkey->type != peer->type) {
+ EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER, EVP_R_DIFFERENT_KEY_TYPES);
+ return -1;
+ }
+
+ /*
+ * For clarity. The error is if parameters in peer are
+ * present (!missing) but don't match. EVP_PKEY_cmp_parameters may return
+ * 1 (match), 0 (don't match) and -2 (comparison is not defined). -1
+ * (different key types) is impossible here because it is checked earlier.
+ * -2 is OK for us here, as well as 1, so we can check for 0 only.
+ */
+ if (!EVP_PKEY_missing_parameters(peer) &&
+ !EVP_PKEY_cmp_parameters(ctx->pkey, peer)) {
+ EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER, EVP_R_DIFFERENT_PARAMETERS);
+ return -1;
+ }
+
+ EVP_PKEY_free(ctx->peerkey);
+ ctx->peerkey = peer;
+
+ ret = ctx->pmeth->ctrl(ctx, EVP_PKEY_CTRL_PEER_KEY, 1, peer);
+
+ if (ret <= 0) {
+ ctx->peerkey = NULL;
+ return ret;
+ }
+
+ EVP_PKEY_up_ref(peer);
+ return 1;
+}
+int EVP_PKEY_derive(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *pkeylen)
+{
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->derive) {
+ EVPerr(EVP_F_EVP_PKEY_DERIVE,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ if (ctx->operation != EVP_PKEY_OP_DERIVE) {
+ EVPerr(EVP_F_EVP_PKEY_DERIVE, EVP_R_OPERATON_NOT_INITIALIZED);
+ return -1;
+ }
+ M_check_autoarg(ctx, key, pkeylen, EVP_F_EVP_PKEY_DERIVE)
+ return ctx->pmeth->derive(ctx, key, pkeylen);
+}
projects / openssl.git / blobdiff