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-rw-r--r--crypto/evp/pmeth_fn.c516
1 files changed, 247 insertions, 269 deletions
diff --git a/crypto/evp/pmeth_fn.c b/crypto/evp/pmeth_fn.c
index c4676f2f8df5..a8b7f2f6d579 100644
--- a/crypto/evp/pmeth_fn.c
+++ b/crypto/evp/pmeth_fn.c
@@ -1,6 +1,7 @@
/* pmeth_fn.c */
-/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
- * project 2006.
+/*
+ * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
+ * 2006.
*/
/* ====================================================================
* Copyright (c) 2006 The OpenSSL Project. All rights reserved.
@@ -10,7 +11,7 @@
* are met:
*
* 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * 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
@@ -64,305 +65,282 @@
#include "evp_locl.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 (!arg) \
- { \
- *arglen = pksize; \
- return 1; \
- } \
- else if (*arglen < pksize) \
- { \
- EVPerr(err, EVP_R_BUFFER_TOO_SMALL); /*ckerr_ignore*/\
- return 0; \
- } \
- }
+ if (ctx->pmeth->flags & EVP_PKEY_FLAG_AUTOARGLEN) \
+ { \
+ size_t pksize = (size_t)EVP_PKEY_size(ctx->pkey); \
+ if (!arg) \
+ { \
+ *arglen = pksize; \
+ return 1; \
+ } \
+ else 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, 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);
- }
+ 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, 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);
- }
+ 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, 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);
- }
+ 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, 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);
- }
+ 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, 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);
- }
-
+ 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 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);
+{
+ 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;
+ }
- if (ret <= 0)
- return ret;
+ ret = ctx->pmeth->ctrl(ctx, EVP_PKEY_CTRL_PEER_KEY, 0, peer);
- if (ret == 2)
- return 1;
+ if (ret <= 0)
+ return ret;
- if (!ctx->pkey)
- {
- EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER, EVP_R_NO_KEY_SET);
- return -1;
- }
+ if (ret == 2)
+ return 1;
- if (ctx->pkey->type != peer->type)
- {
- EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER,
- EVP_R_DIFFERENT_KEY_TYPES);
- return -1;
- }
+ if (!ctx->pkey) {
+ EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER, EVP_R_NO_KEY_SET);
+ return -1;
+ }
- /* ran@cryptocom.ru: 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;
- }
+ if (ctx->pkey->type != peer->type) {
+ EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER, EVP_R_DIFFERENT_KEY_TYPES);
+ return -1;
+ }
- if (ctx->peerkey)
- EVP_PKEY_free(ctx->peerkey);
- ctx->peerkey = peer;
+ /*
+ * ran@cryptocom.ru: 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;
+ }
- ret = ctx->pmeth->ctrl(ctx, EVP_PKEY_CTRL_PEER_KEY, 1, peer);
+ if (ctx->peerkey)
+ EVP_PKEY_free(ctx->peerkey);
+ ctx->peerkey = peer;
- if (ret <= 0)
- {
- ctx->peerkey = NULL;
- return ret;
- }
+ ret = ctx->pmeth->ctrl(ctx, EVP_PKEY_CTRL_PEER_KEY, 1, peer);
- CRYPTO_add(&peer->references,1,CRYPTO_LOCK_EVP_PKEY);
- return 1;
- }
+ if (ret <= 0) {
+ ctx->peerkey = NULL;
+ return ret;
+ }
+ CRYPTO_add(&peer->references, 1, CRYPTO_LOCK_EVP_PKEY);
+ 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);
- }
-
+{
+ 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);
+}