-/* pmeth_lib.c */
+
/*
- * Written by Dr Stephen N Henson (steve@openssl.org) 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 2006-2018 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 "cryptlib.h"
-#include <openssl/objects.h>
+#include <openssl/engine.h>
#include <openssl/evp.h>
-#ifndef OPENSSL_NO_ENGINE
-# include <openssl/engine.h>
-#endif
-#include "internal/asn1_int.h"
-#include "internal/evp_int.h"
-
+#include <openssl/x509v3.h>
+#include <openssl/core_names.h>
+#include <openssl/dh.h>
+#include "internal/cryptlib.h"
+#include "crypto/asn1.h"
+#include "crypto/evp.h"
+#include "internal/numbers.h"
+#include "internal/provider.h"
+#include "evp_local.h"
+
+typedef const EVP_PKEY_METHOD *(*pmeth_fn)(void);
typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
-DECLARE_STACK_OF(EVP_PKEY_METHOD)
-STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL;
-
-extern const EVP_PKEY_METHOD rsa_pkey_meth, dh_pkey_meth, dsa_pkey_meth;
-extern const EVP_PKEY_METHOD ec_pkey_meth, hmac_pkey_meth, cmac_pkey_meth;
-extern const EVP_PKEY_METHOD dhx_pkey_meth;
+static STACK_OF(EVP_PKEY_METHOD) *app_pkey_methods = NULL;
-static const EVP_PKEY_METHOD *standard_methods[] = {
+/* This array needs to be in order of NIDs */
+static pmeth_fn standard_methods[] = {
#ifndef OPENSSL_NO_RSA
- &rsa_pkey_meth,
+ rsa_pkey_method,
#endif
#ifndef OPENSSL_NO_DH
- &dh_pkey_meth,
+ dh_pkey_method,
#endif
#ifndef OPENSSL_NO_DSA
- &dsa_pkey_meth,
+ dsa_pkey_method,
#endif
#ifndef OPENSSL_NO_EC
- &ec_pkey_meth,
+ ec_pkey_method,
+#endif
+ hmac_pkey_method,
+#ifndef OPENSSL_NO_CMAC
+ cmac_pkey_method,
+#endif
+#ifndef OPENSSL_NO_RSA
+ rsa_pss_pkey_method,
#endif
- &hmac_pkey_meth,
- &cmac_pkey_meth,
#ifndef OPENSSL_NO_DH
- &dhx_pkey_meth
+ dhx_pkey_method,
+#endif
+#ifndef OPENSSL_NO_SCRYPT
+ scrypt_pkey_method,
+#endif
+ tls1_prf_pkey_method,
+#ifndef OPENSSL_NO_EC
+ ecx25519_pkey_method,
+ ecx448_pkey_method,
+#endif
+ hkdf_pkey_method,
+#ifndef OPENSSL_NO_POLY1305
+ poly1305_pkey_method,
+#endif
+#ifndef OPENSSL_NO_SIPHASH
+ siphash_pkey_method,
+#endif
+#ifndef OPENSSL_NO_EC
+ ed25519_pkey_method,
+ ed448_pkey_method,
+#endif
+#ifndef OPENSSL_NO_SM2
+ sm2_pkey_method,
#endif
};
-DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, const EVP_PKEY_METHOD *,
- pmeth);
+DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
+
+static int pmeth_func_cmp(const EVP_PKEY_METHOD *const *a, pmeth_fn const *b)
+{
+ return ((*a)->pkey_id - ((**b)())->pkey_id);
+}
+
+IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, pmeth_fn, pmeth_func);
static int pmeth_cmp(const EVP_PKEY_METHOD *const *a,
const EVP_PKEY_METHOD *const *b)
return ((*a)->pkey_id - (*b)->pkey_id);
}
-IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_METHOD *, const EVP_PKEY_METHOD *,
- pmeth);
-
const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type)
{
+ pmeth_fn *ret;
EVP_PKEY_METHOD tmp;
- const EVP_PKEY_METHOD *t = &tmp, **ret;
+ const EVP_PKEY_METHOD *t = &tmp;
+
tmp.pkey_id = type;
if (app_pkey_methods) {
int idx;
if (idx >= 0)
return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
}
- ret = OBJ_bsearch_pmeth(&t, standard_methods,
- sizeof(standard_methods) /
- sizeof(EVP_PKEY_METHOD *));
- if (!ret || !*ret)
+ ret = OBJ_bsearch_pmeth_func(&t, standard_methods,
+ sizeof(standard_methods) /
+ sizeof(pmeth_fn));
+ if (ret == NULL || *ret == NULL)
return NULL;
- return *ret;
+ return (**ret)();
}
-static EVP_PKEY_CTX *int_ctx_new(EVP_PKEY *pkey, ENGINE *e, int id)
+static EVP_PKEY_CTX *int_ctx_new(EVP_PKEY *pkey, ENGINE *e,
+ const char *name, const char *propquery,
+ int id)
{
EVP_PKEY_CTX *ret;
- const EVP_PKEY_METHOD *pmeth;
+ const EVP_PKEY_METHOD *pmeth = NULL;
+
+ /*
+ * When using providers, the context is bound to the algo implementation
+ * later.
+ */
+ if (pkey == NULL && e == NULL && id == -1)
+ goto common;
+
+ /* TODO(3.0) Legacy code should be removed when all is provider based */
+ /* BEGIN legacy */
if (id == -1) {
- if (!pkey || !pkey->ameth)
- return NULL;
- id = pkey->ameth->pkey_id;
+ if (pkey == NULL)
+ return 0;
+ id = pkey->type;
}
+ name = OBJ_nid2sn(id);
+ propquery = NULL;
#ifndef OPENSSL_NO_ENGINE
- if (pkey && pkey->engine)
- e = pkey->engine;
+ if (e == NULL && pkey != NULL)
+ e = pkey->pmeth_engine != NULL ? pkey->pmeth_engine : pkey->engine;
/* Try to find an ENGINE which implements this method */
if (e) {
if (!ENGINE_init(e)) {
EVPerr(EVP_F_INT_CTX_NEW, ERR_R_ENGINE_LIB);
return NULL;
}
- } else
+ } else {
e = ENGINE_get_pkey_meth_engine(id);
+ }
/*
- * If an ENGINE handled this method look it up. Othewise use internal
+ * If an ENGINE handled this method look it up. Otherwise use internal
* tables.
*/
-
if (e)
pmeth = ENGINE_get_pkey_meth(e, id);
else
pmeth = EVP_PKEY_meth_find(id);
if (pmeth == NULL) {
+#ifndef OPENSSL_NO_ENGINE
+ ENGINE_finish(e);
+#endif
EVPerr(EVP_F_INT_CTX_NEW, EVP_R_UNSUPPORTED_ALGORITHM);
return NULL;
}
+ /* END legacy */
- ret = OPENSSL_malloc(sizeof(*ret));
- if (!ret) {
+ common:
+ ret = OPENSSL_zalloc(sizeof(*ret));
+ if (ret == NULL) {
#ifndef OPENSSL_NO_ENGINE
- if (e)
- ENGINE_finish(e);
+ ENGINE_finish(e);
#endif
EVPerr(EVP_F_INT_CTX_NEW, ERR_R_MALLOC_FAILURE);
return NULL;
}
+ ret->algorithm = name;
+ ret->propquery = propquery;
ret->engine = e;
ret->pmeth = pmeth;
ret->operation = EVP_PKEY_OP_UNDEFINED;
ret->pkey = pkey;
- ret->peerkey = NULL;
- ret->pkey_gencb = 0;
- if (pkey)
- CRYPTO_add(&pkey->references, 1, CRYPTO_LOCK_EVP_PKEY);
- ret->data = NULL;
+ if (pkey != NULL)
+ EVP_PKEY_up_ref(pkey);
- if (pmeth->init) {
+ if (pmeth != NULL && pmeth->init != NULL) {
if (pmeth->init(ret) <= 0) {
+ ret->pmeth = NULL;
EVP_PKEY_CTX_free(ret);
return NULL;
}
return ret;
}
+void evp_pkey_ctx_free_old_ops(EVP_PKEY_CTX *ctx)
+{
+ if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
+ if (ctx->op.kex.exchprovctx != NULL && ctx->op.kex.exchange != NULL)
+ ctx->op.kex.exchange->freectx(ctx->op.kex.exchprovctx);
+ EVP_KEYEXCH_free(ctx->op.kex.exchange);
+ ctx->op.kex.exchprovctx = NULL;
+ ctx->op.kex.exchange = NULL;
+ } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
+ if (ctx->op.sig.sigprovctx != NULL && ctx->op.sig.signature != NULL)
+ ctx->op.sig.signature->freectx(ctx->op.sig.sigprovctx);
+ EVP_SIGNATURE_free(ctx->op.sig.signature);
+ ctx->op.sig.sigprovctx = NULL;
+ ctx->op.sig.signature = NULL;
+ }
+}
+
EVP_PKEY_METHOD *EVP_PKEY_meth_new(int id, int flags)
{
EVP_PKEY_METHOD *pmeth;
- pmeth = OPENSSL_malloc(sizeof(*pmeth));
- if (!pmeth)
+ pmeth = OPENSSL_zalloc(sizeof(*pmeth));
+ if (pmeth == NULL) {
+ EVPerr(EVP_F_EVP_PKEY_METH_NEW, ERR_R_MALLOC_FAILURE);
return NULL;
-
- memset(pmeth, 0, sizeof(*pmeth));
+ }
pmeth->pkey_id = id;
pmeth->flags = flags | EVP_PKEY_FLAG_DYNAMIC;
-
- pmeth->init = 0;
- pmeth->copy = 0;
- pmeth->cleanup = 0;
- pmeth->paramgen_init = 0;
- pmeth->paramgen = 0;
- pmeth->keygen_init = 0;
- pmeth->keygen = 0;
- pmeth->sign_init = 0;
- pmeth->sign = 0;
- pmeth->verify_init = 0;
- pmeth->verify = 0;
- pmeth->verify_recover_init = 0;
- pmeth->verify_recover = 0;
- pmeth->signctx_init = 0;
- pmeth->signctx = 0;
- pmeth->verifyctx_init = 0;
- pmeth->verifyctx = 0;
- pmeth->encrypt_init = 0;
- pmeth->encrypt = 0;
- pmeth->decrypt_init = 0;
- pmeth->decrypt = 0;
- pmeth->derive_init = 0;
- pmeth->derive = 0;
- pmeth->ctrl = 0;
- pmeth->ctrl_str = 0;
-
return pmeth;
}
dst->ctrl = src->ctrl;
dst->ctrl_str = src->ctrl_str;
+
+ dst->check = src->check;
}
void EVP_PKEY_meth_free(EVP_PKEY_METHOD *pmeth)
EVP_PKEY_CTX *EVP_PKEY_CTX_new(EVP_PKEY *pkey, ENGINE *e)
{
- return int_ctx_new(pkey, e, -1);
+ return int_ctx_new(pkey, e, NULL, NULL, -1);
}
EVP_PKEY_CTX *EVP_PKEY_CTX_new_id(int id, ENGINE *e)
{
- return int_ctx_new(NULL, e, id);
+ return int_ctx_new(NULL, e, NULL, NULL, id);
+}
+
+EVP_PKEY_CTX *EVP_PKEY_CTX_new_provided(const char *name,
+ const char *propquery)
+{
+ return int_ctx_new(NULL, NULL, name, propquery, -1);
}
-EVP_PKEY_CTX *EVP_PKEY_CTX_dup(EVP_PKEY_CTX *pctx)
+EVP_PKEY_CTX *EVP_PKEY_CTX_dup(const EVP_PKEY_CTX *pctx)
{
EVP_PKEY_CTX *rctx;
- if (!pctx->pmeth || !pctx->pmeth->copy)
+
+ if (((pctx->pmeth == NULL) || (pctx->pmeth->copy == NULL))
+ && ((EVP_PKEY_CTX_IS_DERIVE_OP(pctx)
+ && pctx->op.kex.exchprovctx == NULL)
+ || (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)
+ && pctx->op.sig.sigprovctx == NULL)))
return NULL;
#ifndef OPENSSL_NO_ENGINE
/* Make sure it's safe to copy a pkey context using an ENGINE */
return 0;
}
#endif
- rctx = OPENSSL_malloc(sizeof(*rctx));
- if (!rctx)
+ rctx = OPENSSL_zalloc(sizeof(*rctx));
+ if (rctx == NULL) {
+ EVPerr(EVP_F_EVP_PKEY_CTX_DUP, ERR_R_MALLOC_FAILURE);
return NULL;
+ }
+
+ if (pctx->pkey != NULL)
+ EVP_PKEY_up_ref(pctx->pkey);
+ rctx->pkey = pctx->pkey;
+ rctx->operation = pctx->operation;
+ rctx->algorithm = pctx->algorithm;
+ rctx->propquery = pctx->propquery;
+
+ if (EVP_PKEY_CTX_IS_DERIVE_OP(pctx)) {
+ if (pctx->op.kex.exchange != NULL) {
+ rctx->op.kex.exchange = pctx->op.kex.exchange;
+ if (!EVP_KEYEXCH_up_ref(rctx->op.kex.exchange)) {
+ OPENSSL_free(rctx);
+ return NULL;
+ }
+ }
+ if (pctx->op.kex.exchprovctx != NULL) {
+ if (!ossl_assert(pctx->op.kex.exchange != NULL))
+ return NULL;
+ rctx->op.kex.exchprovctx
+ = pctx->op.kex.exchange->dupctx(pctx->op.kex.exchprovctx);
+ if (rctx->op.kex.exchprovctx == NULL) {
+ EVP_KEYEXCH_free(rctx->op.kex.exchange);
+ OPENSSL_free(rctx);
+ return NULL;
+ }
+ return rctx;
+ }
+ } else if (EVP_PKEY_CTX_IS_SIGNATURE_OP(pctx)) {
+ if (pctx->op.sig.signature != NULL) {
+ rctx->op.sig.signature = pctx->op.sig.signature;
+ if (!EVP_SIGNATURE_up_ref(rctx->op.sig.signature)) {
+ OPENSSL_free(rctx);
+ return NULL;
+ }
+ }
+ if (pctx->op.sig.sigprovctx != NULL) {
+ if (!ossl_assert(pctx->op.sig.signature != NULL))
+ return NULL;
+ rctx->op.sig.sigprovctx
+ = pctx->op.sig.signature->dupctx(pctx->op.sig.sigprovctx);
+ if (rctx->op.sig.sigprovctx == NULL) {
+ EVP_SIGNATURE_free(rctx->op.sig.signature);
+ OPENSSL_free(rctx);
+ return NULL;
+ }
+ return rctx;
+ }
+ }
rctx->pmeth = pctx->pmeth;
#ifndef OPENSSL_NO_ENGINE
rctx->engine = pctx->engine;
#endif
- if (pctx->pkey)
- CRYPTO_add(&pctx->pkey->references, 1, CRYPTO_LOCK_EVP_PKEY);
-
- rctx->pkey = pctx->pkey;
-
if (pctx->peerkey)
- CRYPTO_add(&pctx->peerkey->references, 1, CRYPTO_LOCK_EVP_PKEY);
-
+ EVP_PKEY_up_ref(pctx->peerkey);
rctx->peerkey = pctx->peerkey;
- rctx->data = NULL;
- rctx->app_data = NULL;
- rctx->operation = pctx->operation;
-
if (pctx->pmeth->copy(rctx, pctx) > 0)
return rctx;
+ rctx->pmeth = NULL;
EVP_PKEY_CTX_free(rctx);
return NULL;
{
if (app_pkey_methods == NULL) {
app_pkey_methods = sk_EVP_PKEY_METHOD_new(pmeth_cmp);
- if (!app_pkey_methods)
+ if (app_pkey_methods == NULL){
+ EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
return 0;
+ }
}
- if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth))
+ if (!sk_EVP_PKEY_METHOD_push(app_pkey_methods, pmeth)) {
+ EVPerr(EVP_F_EVP_PKEY_METH_ADD0, ERR_R_MALLOC_FAILURE);
return 0;
+ }
sk_EVP_PKEY_METHOD_sort(app_pkey_methods);
return 1;
}
+void evp_app_cleanup_int(void)
+{
+ if (app_pkey_methods != NULL)
+ sk_EVP_PKEY_METHOD_pop_free(app_pkey_methods, EVP_PKEY_meth_free);
+}
+
+int EVP_PKEY_meth_remove(const EVP_PKEY_METHOD *pmeth)
+{
+ const EVP_PKEY_METHOD *ret;
+
+ ret = sk_EVP_PKEY_METHOD_delete_ptr(app_pkey_methods, pmeth);
+
+ return ret == NULL ? 0 : 1;
+}
+
+size_t EVP_PKEY_meth_get_count(void)
+{
+ size_t rv = OSSL_NELEM(standard_methods);
+
+ if (app_pkey_methods)
+ rv += sk_EVP_PKEY_METHOD_num(app_pkey_methods);
+ return rv;
+}
+
+const EVP_PKEY_METHOD *EVP_PKEY_meth_get0(size_t idx)
+{
+ if (idx < OSSL_NELEM(standard_methods))
+ return (standard_methods[idx])();
+ if (app_pkey_methods == NULL)
+ return NULL;
+ idx -= OSSL_NELEM(standard_methods);
+ if (idx >= (size_t)sk_EVP_PKEY_METHOD_num(app_pkey_methods))
+ return NULL;
+ return sk_EVP_PKEY_METHOD_value(app_pkey_methods, idx);
+}
+
void EVP_PKEY_CTX_free(EVP_PKEY_CTX *ctx)
{
if (ctx == NULL)
return;
if (ctx->pmeth && ctx->pmeth->cleanup)
ctx->pmeth->cleanup(ctx);
+
+ evp_pkey_ctx_free_old_ops(ctx);
+
EVP_PKEY_free(ctx->pkey);
EVP_PKEY_free(ctx->peerkey);
#ifndef OPENSSL_NO_ENGINE
- if (ctx->engine)
- /*
- * The EVP_PKEY_CTX we used belongs to an ENGINE, release the
- * functional reference we held for this reason.
- */
- ENGINE_finish(ctx->engine);
+ ENGINE_finish(ctx->engine);
#endif
OPENSSL_free(ctx);
}
+int EVP_PKEY_CTX_get_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
+{
+ if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
+ && ctx->op.sig.sigprovctx != NULL
+ && ctx->op.sig.signature != NULL
+ && ctx->op.sig.signature->get_ctx_params != NULL)
+ return ctx->op.sig.signature->get_ctx_params(ctx->op.sig.sigprovctx,
+ params);
+ return 0;
+}
+
+const OSSL_PARAM *EVP_PKEY_CTX_gettable_params(EVP_PKEY_CTX *ctx)
+{
+ if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
+ && ctx->op.sig.signature != NULL
+ && ctx->op.sig.signature->gettable_ctx_params != NULL)
+ return ctx->op.sig.signature->gettable_ctx_params();
+
+ return NULL;
+}
+
+int EVP_PKEY_CTX_set_params(EVP_PKEY_CTX *ctx, OSSL_PARAM *params)
+{
+ if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
+ && ctx->op.kex.exchprovctx != NULL
+ && ctx->op.kex.exchange != NULL
+ && ctx->op.kex.exchange->set_ctx_params != NULL)
+ return ctx->op.kex.exchange->set_ctx_params(ctx->op.kex.exchprovctx,
+ params);
+ if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
+ && ctx->op.sig.sigprovctx != NULL
+ && ctx->op.sig.signature != NULL
+ && ctx->op.sig.signature->set_ctx_params != NULL)
+ return ctx->op.sig.signature->set_ctx_params(ctx->op.sig.sigprovctx,
+ params);
+ return 0;
+}
+
+const OSSL_PARAM *EVP_PKEY_CTX_settable_params(EVP_PKEY_CTX *ctx)
+{
+ if (EVP_PKEY_CTX_IS_DERIVE_OP(ctx)
+ && ctx->op.kex.exchange != NULL
+ && ctx->op.kex.exchange->settable_ctx_params != NULL)
+ return ctx->op.kex.exchange->settable_ctx_params();
+ if (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
+ && ctx->op.sig.signature != NULL
+ && ctx->op.sig.signature->settable_ctx_params != NULL)
+ return ctx->op.sig.signature->settable_ctx_params();
+
+ return NULL;
+}
+
+#ifndef OPENSSL_NO_DH
+int EVP_PKEY_CTX_set_dh_pad(EVP_PKEY_CTX *ctx, int pad)
+{
+ OSSL_PARAM dh_pad_params[2];
+ unsigned int upad = pad;
+
+ /* We use EVP_PKEY_CTX_ctrl return values */
+ if (ctx == NULL || !EVP_PKEY_CTX_IS_DERIVE_OP(ctx)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ return -2;
+ }
+
+ /* TODO(3.0): Remove this eventually when no more legacy */
+ if (ctx->op.kex.exchprovctx == NULL)
+ return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_DERIVE,
+ EVP_PKEY_CTRL_DH_PAD, pad, NULL);
+
+ dh_pad_params[0] = OSSL_PARAM_construct_uint(OSSL_EXCHANGE_PARAM_PAD, &upad);
+ dh_pad_params[1] = OSSL_PARAM_construct_end();
+
+ return EVP_PKEY_CTX_set_params(ctx, dh_pad_params);
+}
+#endif
+
+int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **md)
+{
+ OSSL_PARAM sig_md_params[3], *p = sig_md_params;
+ /* 80 should be big enough */
+ char name[80] = "";
+ const EVP_MD *tmp;
+
+ if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ /* TODO(3.0): Remove this eventually when no more legacy */
+ if (ctx->op.sig.sigprovctx == NULL)
+ return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,
+ EVP_PKEY_CTRL_GET_MD, 0, (void *)(md));
+
+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST,
+ name,
+ sizeof(name));
+ *p++ = OSSL_PARAM_construct_end();
+
+ if (!EVP_PKEY_CTX_get_params(ctx, sig_md_params))
+ return 0;
+
+ tmp = EVP_get_digestbyname(name);
+ if (tmp == NULL)
+ return 0;
+
+ *md = tmp;
+
+ return 1;
+}
+
+int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
+{
+ OSSL_PARAM sig_md_params[3], *p = sig_md_params;
+ size_t mdsize;
+ const char *name;
+
+ if (ctx == NULL || !EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ /* TODO(3.0): Remove this eventually when no more legacy */
+ if (ctx->op.sig.sigprovctx == NULL)
+ return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG,
+ EVP_PKEY_CTRL_MD, 0, (void *)(md));
+
+ if (md == NULL) {
+ name = "";
+ mdsize = 0;
+ } else {
+ mdsize = EVP_MD_size(md);
+ name = EVP_MD_name(md);
+ }
+
+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_SIGNATURE_PARAM_DIGEST,
+ /*
+ * Cast away the const. This is read
+ * only so should be safe
+ */
+ (char *)name,
+ strlen(name) + 1);
+ *p++ = OSSL_PARAM_construct_size_t(OSSL_SIGNATURE_PARAM_DIGEST_SIZE,
+ &mdsize);
+ *p++ = OSSL_PARAM_construct_end();
+
+ return EVP_PKEY_CTX_set_params(ctx, sig_md_params);
+}
+
+static int legacy_ctrl_to_param(EVP_PKEY_CTX *ctx, int keytype, int optype,
+ int cmd, int p1, void *p2)
+{
+ switch (cmd) {
+#ifndef OPENSSL_NO_DH
+ case EVP_PKEY_CTRL_DH_PAD:
+ return EVP_PKEY_CTX_set_dh_pad(ctx, p1);
+#endif
+ case EVP_PKEY_CTRL_MD:
+ return EVP_PKEY_CTX_set_signature_md(ctx, p2);
+ case EVP_PKEY_CTRL_GET_MD:
+ return EVP_PKEY_CTX_get_signature_md(ctx, p2);
+ }
+ return 0;
+}
+
int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype,
int cmd, int p1, void *p2)
{
int ret;
- if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl) {
+
+ if (ctx == NULL) {
+ EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
+ return -2;
+ }
+
+ if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchprovctx != NULL)
+ || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
+ && ctx->op.sig.sigprovctx != NULL))
+ return legacy_ctrl_to_param(ctx, keytype, optype, cmd, p1, p2);
+
+ if (ctx->pmeth == NULL || ctx->pmeth->ctrl == NULL) {
EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
return -2;
}
if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype))
return -1;
+ /* Skip the operation checks since this is called in a very early stage */
+ if (ctx->pmeth->digest_custom != NULL)
+ goto doit;
+
if (ctx->operation == EVP_PKEY_OP_UNDEFINED) {
EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_NO_OPERATION_SET);
return -1;
return -1;
}
+ doit:
ret = ctx->pmeth->ctrl(ctx, cmd, p1, p2);
if (ret == -2)
EVPerr(EVP_F_EVP_PKEY_CTX_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
return ret;
+}
+
+int EVP_PKEY_CTX_ctrl_uint64(EVP_PKEY_CTX *ctx, int keytype, int optype,
+ int cmd, uint64_t value)
+{
+ return EVP_PKEY_CTX_ctrl(ctx, keytype, optype, cmd, 0, &value);
+}
+
+static int legacy_ctrl_str_to_param(EVP_PKEY_CTX *ctx, const char *name,
+ const char *value)
+{
+#ifndef OPENSSL_NO_DH
+ if (strcmp(name, "dh_pad") == 0) {
+ int pad;
+
+ pad = atoi(value);
+ return EVP_PKEY_CTX_set_dh_pad(ctx, pad);
+ }
+#endif
+ if (strcmp(name, "digest") == 0) {
+ int ret;
+ EVP_MD *md;
+ if (!EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx) || ctx->op.sig.signature == NULL)
+ return 0;
+ md = EVP_MD_fetch(ossl_provider_library_context(ctx->op.sig.signature->prov),
+ value, NULL);
+ if (md == NULL)
+ return 0;
+ ret = EVP_PKEY_CTX_set_signature_md(ctx, md);
+ EVP_MD_meth_free(md);
+ return ret;
+ }
+
+ return 0;
}
int EVP_PKEY_CTX_ctrl_str(EVP_PKEY_CTX *ctx,
const char *name, const char *value)
{
- if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl_str) {
+ if (ctx == NULL) {
EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
return -2;
}
- if (!strcmp(name, "digest")) {
- const EVP_MD *md;
- if (!value || !(md = EVP_get_digestbyname(value))) {
- EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_INVALID_DIGEST);
- return 0;
- }
- return EVP_PKEY_CTX_set_signature_md(ctx, md);
+
+ if ((EVP_PKEY_CTX_IS_DERIVE_OP(ctx) && ctx->op.kex.exchprovctx != NULL)
+ || (EVP_PKEY_CTX_IS_SIGNATURE_OP(ctx)
+ && ctx->op.sig.sigprovctx != NULL))
+ return legacy_ctrl_str_to_param(ctx, name, value);
+
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl_str) {
+ EVPerr(EVP_F_EVP_PKEY_CTX_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
+ return -2;
}
+ if (strcmp(name, "digest") == 0)
+ return EVP_PKEY_CTX_md(ctx, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD,
+ value);
return ctx->pmeth->ctrl_str(ctx, name, value);
}
+/* Utility functions to send a string of hex string to a ctrl */
+
+int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str)
+{
+ size_t len;
+
+ len = strlen(str);
+ if (len > INT_MAX)
+ return -1;
+ return ctx->pmeth->ctrl(ctx, cmd, len, (void *)str);
+}
+
+int EVP_PKEY_CTX_hex2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *hex)
+{
+ unsigned char *bin;
+ long binlen;
+ int rv = -1;
+
+ bin = OPENSSL_hexstr2buf(hex, &binlen);
+ if (bin == NULL)
+ return 0;
+ if (binlen <= INT_MAX)
+ rv = ctx->pmeth->ctrl(ctx, cmd, binlen, bin);
+ OPENSSL_free(bin);
+ return rv;
+}
+
+/* Pass a message digest to a ctrl */
+int EVP_PKEY_CTX_md(EVP_PKEY_CTX *ctx, int optype, int cmd, const char *md)
+{
+ const EVP_MD *m;
+
+ if (md == NULL || (m = EVP_get_digestbyname(md)) == NULL) {
+ EVPerr(EVP_F_EVP_PKEY_CTX_MD, EVP_R_INVALID_DIGEST);
+ return 0;
+ }
+ return EVP_PKEY_CTX_ctrl(ctx, -1, optype, cmd, 0, (void *)m);
+}
+
int EVP_PKEY_CTX_get_operation(EVP_PKEY_CTX *ctx)
{
return ctx->operation;
ctx->data = data;
}
-void *EVP_PKEY_CTX_get_data(EVP_PKEY_CTX *ctx)
+void *EVP_PKEY_CTX_get_data(const EVP_PKEY_CTX *ctx)
{
return ctx->data;
}
void EVP_PKEY_meth_set_copy(EVP_PKEY_METHOD *pmeth,
int (*copy) (EVP_PKEY_CTX *dst,
- EVP_PKEY_CTX *src))
+ const EVP_PKEY_CTX *src))
{
pmeth->copy = copy;
}
pmeth->ctrl = ctrl;
pmeth->ctrl_str = ctrl_str;
}
+
+void EVP_PKEY_meth_set_check(EVP_PKEY_METHOD *pmeth,
+ int (*check) (EVP_PKEY *pkey))
+{
+ pmeth->check = check;
+}
+
+void EVP_PKEY_meth_set_public_check(EVP_PKEY_METHOD *pmeth,
+ int (*check) (EVP_PKEY *pkey))
+{
+ pmeth->public_check = check;
+}
+
+void EVP_PKEY_meth_set_param_check(EVP_PKEY_METHOD *pmeth,
+ int (*check) (EVP_PKEY *pkey))
+{
+ pmeth->param_check = check;
+}
+
+void EVP_PKEY_meth_set_digest_custom(EVP_PKEY_METHOD *pmeth,
+ int (*digest_custom) (EVP_PKEY_CTX *ctx,
+ EVP_MD_CTX *mctx))
+{
+ pmeth->digest_custom = digest_custom;
+}
+
+void EVP_PKEY_meth_get_init(const EVP_PKEY_METHOD *pmeth,
+ int (**pinit) (EVP_PKEY_CTX *ctx))
+{
+ *pinit = pmeth->init;
+}
+
+void EVP_PKEY_meth_get_copy(const EVP_PKEY_METHOD *pmeth,
+ int (**pcopy) (EVP_PKEY_CTX *dst,
+ const EVP_PKEY_CTX *src))
+{
+ *pcopy = pmeth->copy;
+}
+
+void EVP_PKEY_meth_get_cleanup(const EVP_PKEY_METHOD *pmeth,
+ void (**pcleanup) (EVP_PKEY_CTX *ctx))
+{
+ *pcleanup = pmeth->cleanup;
+}
+
+void EVP_PKEY_meth_get_paramgen(const EVP_PKEY_METHOD *pmeth,
+ int (**pparamgen_init) (EVP_PKEY_CTX *ctx),
+ int (**pparamgen) (EVP_PKEY_CTX *ctx,
+ EVP_PKEY *pkey))
+{
+ if (pparamgen_init)
+ *pparamgen_init = pmeth->paramgen_init;
+ if (pparamgen)
+ *pparamgen = pmeth->paramgen;
+}
+
+void EVP_PKEY_meth_get_keygen(const EVP_PKEY_METHOD *pmeth,
+ int (**pkeygen_init) (EVP_PKEY_CTX *ctx),
+ int (**pkeygen) (EVP_PKEY_CTX *ctx,
+ EVP_PKEY *pkey))
+{
+ if (pkeygen_init)
+ *pkeygen_init = pmeth->keygen_init;
+ if (pkeygen)
+ *pkeygen = pmeth->keygen;
+}
+
+void EVP_PKEY_meth_get_sign(const EVP_PKEY_METHOD *pmeth,
+ int (**psign_init) (EVP_PKEY_CTX *ctx),
+ int (**psign) (EVP_PKEY_CTX *ctx,
+ unsigned char *sig, size_t *siglen,
+ const unsigned char *tbs,
+ size_t tbslen))
+{
+ if (psign_init)
+ *psign_init = pmeth->sign_init;
+ if (psign)
+ *psign = pmeth->sign;
+}
+
+void EVP_PKEY_meth_get_verify(const EVP_PKEY_METHOD *pmeth,
+ int (**pverify_init) (EVP_PKEY_CTX *ctx),
+ int (**pverify) (EVP_PKEY_CTX *ctx,
+ const unsigned char *sig,
+ size_t siglen,
+ const unsigned char *tbs,
+ size_t tbslen))
+{
+ if (pverify_init)
+ *pverify_init = pmeth->verify_init;
+ if (pverify)
+ *pverify = pmeth->verify;
+}
+
+void EVP_PKEY_meth_get_verify_recover(const EVP_PKEY_METHOD *pmeth,
+ int (**pverify_recover_init) (EVP_PKEY_CTX
+ *ctx),
+ int (**pverify_recover) (EVP_PKEY_CTX
+ *ctx,
+ unsigned char
+ *sig,
+ size_t *siglen,
+ const unsigned
+ char *tbs,
+ size_t tbslen))
+{
+ if (pverify_recover_init)
+ *pverify_recover_init = pmeth->verify_recover_init;
+ if (pverify_recover)
+ *pverify_recover = pmeth->verify_recover;
+}
+
+void EVP_PKEY_meth_get_signctx(const EVP_PKEY_METHOD *pmeth,
+ int (**psignctx_init) (EVP_PKEY_CTX *ctx,
+ EVP_MD_CTX *mctx),
+ int (**psignctx) (EVP_PKEY_CTX *ctx,
+ unsigned char *sig,
+ size_t *siglen,
+ EVP_MD_CTX *mctx))
+{
+ if (psignctx_init)
+ *psignctx_init = pmeth->signctx_init;
+ if (psignctx)
+ *psignctx = pmeth->signctx;
+}
+
+void EVP_PKEY_meth_get_verifyctx(const EVP_PKEY_METHOD *pmeth,
+ int (**pverifyctx_init) (EVP_PKEY_CTX *ctx,
+ EVP_MD_CTX *mctx),
+ int (**pverifyctx) (EVP_PKEY_CTX *ctx,
+ const unsigned char *sig,
+ int siglen,
+ EVP_MD_CTX *mctx))
+{
+ if (pverifyctx_init)
+ *pverifyctx_init = pmeth->verifyctx_init;
+ if (pverifyctx)
+ *pverifyctx = pmeth->verifyctx;
+}
+
+void EVP_PKEY_meth_get_encrypt(const EVP_PKEY_METHOD *pmeth,
+ int (**pencrypt_init) (EVP_PKEY_CTX *ctx),
+ int (**pencryptfn) (EVP_PKEY_CTX *ctx,
+ unsigned char *out,
+ size_t *outlen,
+ const unsigned char *in,
+ size_t inlen))
+{
+ if (pencrypt_init)
+ *pencrypt_init = pmeth->encrypt_init;
+ if (pencryptfn)
+ *pencryptfn = pmeth->encrypt;
+}
+
+void EVP_PKEY_meth_get_decrypt(const EVP_PKEY_METHOD *pmeth,
+ int (**pdecrypt_init) (EVP_PKEY_CTX *ctx),
+ int (**pdecrypt) (EVP_PKEY_CTX *ctx,
+ unsigned char *out,
+ size_t *outlen,
+ const unsigned char *in,
+ size_t inlen))
+{
+ if (pdecrypt_init)
+ *pdecrypt_init = pmeth->decrypt_init;
+ if (pdecrypt)
+ *pdecrypt = pmeth->decrypt;
+}
+
+void EVP_PKEY_meth_get_derive(const EVP_PKEY_METHOD *pmeth,
+ int (**pderive_init) (EVP_PKEY_CTX *ctx),
+ int (**pderive) (EVP_PKEY_CTX *ctx,
+ unsigned char *key,
+ size_t *keylen))
+{
+ if (pderive_init)
+ *pderive_init = pmeth->derive_init;
+ if (pderive)
+ *pderive = pmeth->derive;
+}
+
+void EVP_PKEY_meth_get_ctrl(const EVP_PKEY_METHOD *pmeth,
+ int (**pctrl) (EVP_PKEY_CTX *ctx, int type, int p1,
+ void *p2),
+ int (**pctrl_str) (EVP_PKEY_CTX *ctx,
+ const char *type,
+ const char *value))
+{
+ if (pctrl)
+ *pctrl = pmeth->ctrl;
+ if (pctrl_str)
+ *pctrl_str = pmeth->ctrl_str;
+}
+
+void EVP_PKEY_meth_get_check(const EVP_PKEY_METHOD *pmeth,
+ int (**pcheck) (EVP_PKEY *pkey))
+{
+ if (pcheck != NULL)
+ *pcheck = pmeth->check;
+}
+
+void EVP_PKEY_meth_get_public_check(const EVP_PKEY_METHOD *pmeth,
+ int (**pcheck) (EVP_PKEY *pkey))
+{
+ if (pcheck != NULL)
+ *pcheck = pmeth->public_check;
+}
+
+void EVP_PKEY_meth_get_param_check(const EVP_PKEY_METHOD *pmeth,
+ int (**pcheck) (EVP_PKEY *pkey))
+{
+ if (pcheck != NULL)
+ *pcheck = pmeth->param_check;
+}
+
+void EVP_PKEY_meth_get_digest_custom(EVP_PKEY_METHOD *pmeth,
+ int (**pdigest_custom) (EVP_PKEY_CTX *ctx,
+ EVP_MD_CTX *mctx))
+{
+ if (pdigest_custom != NULL)
+ *pdigest_custom = pmeth->digest_custom;
+}
projects / openssl.git / blobdiff