-/* crypto/evp/evp_lib.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
+/*
+ * Copyright 1995-2018 The OpenSSL Project Authors. 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.]
+ * 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 "cryptlib.h"
+#include "internal/cryptlib.h"
#include <openssl/evp.h>
#include <openssl/objects.h>
+#include <openssl/params.h>
+#include <openssl/core_names.h>
+#include "internal/evp_int.h"
+#include "internal/provider.h"
+#include "evp_locl.h"
+#if !defined(FIPS_MODE)
int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
- {
- int ret;
+{
+ int ret;
+ const EVP_CIPHER *cipher = c->cipher;
+
+ if (cipher->prov != NULL) {
+ /*
+ * The cipher has come from a provider and won't have the default flags.
+ * Find the implicit form so we can check the flags.
+ * TODO(3.0): This won't work for 3rd party ciphers we know nothing about
+ * We'll need to think of something else for those.
+ */
+ cipher = EVP_get_cipherbynid(cipher->nid);
+ if (cipher == NULL) {
+ EVPerr(EVP_F_EVP_CIPHER_PARAM_TO_ASN1, ASN1_R_UNSUPPORTED_CIPHER);
+ return -1;
+ }
+ }
+
+ if (cipher->set_asn1_parameters != NULL)
+ ret = cipher->set_asn1_parameters(c, type);
+ else if (cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1) {
+ switch (EVP_CIPHER_mode(cipher)) {
+ case EVP_CIPH_WRAP_MODE:
+ if (EVP_CIPHER_nid(cipher) == NID_id_smime_alg_CMS3DESwrap)
+ ASN1_TYPE_set(type, V_ASN1_NULL, NULL);
+ ret = 1;
+ break;
+
+ case EVP_CIPH_GCM_MODE:
+ case EVP_CIPH_CCM_MODE:
+ case EVP_CIPH_XTS_MODE:
+ case EVP_CIPH_OCB_MODE:
+ ret = -2;
+ break;
- if (c->cipher->set_asn1_parameters != NULL)
- ret=c->cipher->set_asn1_parameters(c,type);
- else
- ret=1;
- return(ret);
- }
+ default:
+ ret = EVP_CIPHER_set_asn1_iv(c, type);
+ }
+ } else
+ ret = -1;
+ if (ret <= 0)
+ EVPerr(EVP_F_EVP_CIPHER_PARAM_TO_ASN1, ret == -2 ?
+ ASN1_R_UNSUPPORTED_CIPHER :
+ EVP_R_CIPHER_PARAMETER_ERROR);
+ if (ret < -1)
+ ret = -1;
+ return ret;
+}
int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
- {
- int ret;
-
- if (c->cipher->get_asn1_parameters != NULL)
- ret=c->cipher->get_asn1_parameters(c,type);
- else
- ret=1;
- return(ret);
- }
-
-int EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
- {
- int i=0;
- unsigned int l;
-
- if (type != NULL)
- {
- l=EVP_CIPHER_CTX_iv_length(c);
- OPENSSL_assert(l <= sizeof(c->iv));
- i=ASN1_TYPE_get_octetstring(type,c->oiv,l);
- if (i != (int)l)
- return(-1);
- else if (i > 0)
- memcpy(c->iv,c->oiv,l);
- }
- return(i);
- }
+{
+ int ret;
+ const EVP_CIPHER *cipher = c->cipher;
+
+ if (cipher->prov != NULL) {
+ /*
+ * The cipher has come from a provider and won't have the default flags.
+ * Find the implicit form so we can check the flags.
+ */
+ cipher = EVP_get_cipherbynid(cipher->nid);
+ if (cipher == NULL)
+ return -1;
+ }
+
+ if (cipher->get_asn1_parameters != NULL)
+ ret = cipher->get_asn1_parameters(c, type);
+ else if (cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1) {
+ switch (EVP_CIPHER_mode(cipher)) {
+
+ case EVP_CIPH_WRAP_MODE:
+ ret = 1;
+ break;
+
+ case EVP_CIPH_GCM_MODE:
+ case EVP_CIPH_CCM_MODE:
+ case EVP_CIPH_XTS_MODE:
+ case EVP_CIPH_OCB_MODE:
+ ret = -2;
+ break;
+
+ default:
+ ret = EVP_CIPHER_get_asn1_iv(c, type);
+ break;
+ }
+ } else
+ ret = -1;
+ if (ret <= 0)
+ EVPerr(EVP_F_EVP_CIPHER_ASN1_TO_PARAM, ret == -2 ?
+ EVP_R_UNSUPPORTED_CIPHER :
+ EVP_R_CIPHER_PARAMETER_ERROR);
+ if (ret < -1)
+ ret = -1;
+ return ret;
+}
+
+int EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *ctx, ASN1_TYPE *type)
+{
+ int i = 0;
+ unsigned int l;
+
+ if (type != NULL) {
+ unsigned char iv[EVP_MAX_IV_LENGTH];
+
+ l = EVP_CIPHER_CTX_iv_length(ctx);
+ if (!ossl_assert(l <= sizeof(iv)))
+ return -1;
+ i = ASN1_TYPE_get_octetstring(type, iv, l);
+ if (i != (int)l)
+ return -1;
+
+ if (!EVP_CipherInit_ex(ctx, NULL, NULL, NULL, iv, -1))
+ return -1;
+ }
+ return i;
+}
int EVP_CIPHER_set_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
- {
- int i=0;
- unsigned int j;
-
- if (type != NULL)
- {
- j=EVP_CIPHER_CTX_iv_length(c);
- OPENSSL_assert(j <= sizeof(c->iv));
- i=ASN1_TYPE_set_octetstring(type,c->oiv,j);
- }
- return(i);
- }
+{
+ int i = 0;
+ unsigned int j;
+
+ if (type != NULL) {
+ j = EVP_CIPHER_CTX_iv_length(c);
+ OPENSSL_assert(j <= sizeof(c->iv));
+ i = ASN1_TYPE_set_octetstring(type, c->oiv, j);
+ }
+ return i;
+}
+#endif /* !defined(FIPS_MODE) */
/* Convert the various cipher NIDs and dummies to a proper OID NID */
int EVP_CIPHER_type(const EVP_CIPHER *ctx)
{
- int nid;
- ASN1_OBJECT *otmp;
- nid = EVP_CIPHER_nid(ctx);
+ int nid;
+ nid = EVP_CIPHER_nid(ctx);
+
+ switch (nid) {
+
+ case NID_rc2_cbc:
+ case NID_rc2_64_cbc:
+ case NID_rc2_40_cbc:
+
+ return NID_rc2_cbc;
+
+ case NID_rc4:
+ case NID_rc4_40:
+
+ return NID_rc4;
+
+ case NID_aes_128_cfb128:
+ case NID_aes_128_cfb8:
+ case NID_aes_128_cfb1:
+
+ return NID_aes_128_cfb128;
+
+ case NID_aes_192_cfb128:
+ case NID_aes_192_cfb8:
+ case NID_aes_192_cfb1:
- switch(nid) {
+ return NID_aes_192_cfb128;
- case NID_rc2_cbc:
- case NID_rc2_64_cbc:
- case NID_rc2_40_cbc:
+ case NID_aes_256_cfb128:
+ case NID_aes_256_cfb8:
+ case NID_aes_256_cfb1:
- return NID_rc2_cbc;
+ return NID_aes_256_cfb128;
- case NID_rc4:
- case NID_rc4_40:
+ case NID_des_cfb64:
+ case NID_des_cfb8:
+ case NID_des_cfb1:
- return NID_rc4;
+ return NID_des_cfb64;
- case NID_aes_128_cfb128:
- case NID_aes_128_cfb8:
- case NID_aes_128_cfb1:
+ case NID_des_ede3_cfb64:
+ case NID_des_ede3_cfb8:
+ case NID_des_ede3_cfb1:
- return NID_aes_128_cfb128;
+ return NID_des_cfb64;
- case NID_aes_192_cfb128:
- case NID_aes_192_cfb8:
- case NID_aes_192_cfb1:
+ default:
+#ifdef FIPS_MODE
+ return NID_undef;
+#else
+ {
+ /* Check it has an OID and it is valid */
+ ASN1_OBJECT *otmp = OBJ_nid2obj(nid);
- return NID_aes_192_cfb128;
+ if (OBJ_get0_data(otmp) == NULL)
+ nid = NID_undef;
+ ASN1_OBJECT_free(otmp);
+ return nid;
+ }
+#endif
+ }
+}
- case NID_aes_256_cfb128:
- case NID_aes_256_cfb8:
- case NID_aes_256_cfb1:
+int EVP_CIPHER_block_size(const EVP_CIPHER *cipher)
+{
+ if (cipher->prov != NULL) {
+ if (cipher->blocksize != NULL)
+ return cipher->blocksize();
+ /* We default to a block size of 1 */
+ return 1;
+ }
+ return cipher->block_size;
+}
- return NID_aes_256_cfb128;
+int EVP_CIPHER_CTX_block_size(const EVP_CIPHER_CTX *ctx)
+{
+ return EVP_CIPHER_block_size(ctx->cipher);
+}
- case NID_des_cfb64:
- case NID_des_cfb8:
- case NID_des_cfb1:
+int EVP_CIPHER_impl_ctx_size(const EVP_CIPHER *e)
+{
+ return e->ctx_size;
+}
- return NID_des_cfb64;
+int EVP_Cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, unsigned int inl)
+{
+ if (ctx->cipher->prov != NULL) {
+ size_t outl = 0; /* ignored */
+ int blocksize = EVP_CIPHER_CTX_block_size(ctx);
- default:
- /* Check it has an OID and it is valid */
- otmp = OBJ_nid2obj(nid);
- if(!otmp || !otmp->data) nid = NID_undef;
- ASN1_OBJECT_free(otmp);
- return nid;
- }
+ if (ctx->cipher->ccipher != NULL)
+ return
+ ctx->cipher->ccipher(ctx->provctx, out, &outl,
+ inl + (blocksize == 1 ? 0 : blocksize),
+ in, (size_t)inl);
+ return 0;
+ }
+
+ return ctx->cipher->do_cipher(ctx, out, in, inl);
+}
+
+const EVP_CIPHER *EVP_CIPHER_CTX_cipher(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->cipher;
+}
+
+int EVP_CIPHER_CTX_encrypting(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->encrypt;
}
+unsigned long EVP_CIPHER_flags(const EVP_CIPHER *cipher)
+{
+ return cipher->flags;
+}
+
+void *EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->app_data;
+}
+
+void EVP_CIPHER_CTX_set_app_data(EVP_CIPHER_CTX *ctx, void *data)
+{
+ ctx->app_data = data;
+}
+
+void *EVP_CIPHER_CTX_get_cipher_data(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->cipher_data;
+}
+
+void *EVP_CIPHER_CTX_set_cipher_data(EVP_CIPHER_CTX *ctx, void *cipher_data)
+{
+ void *old_cipher_data;
+
+ old_cipher_data = ctx->cipher_data;
+ ctx->cipher_data = cipher_data;
+
+ return old_cipher_data;
+}
+
+int EVP_CIPHER_iv_length(const EVP_CIPHER *cipher)
+{
+ if (cipher->prov != NULL) {
+ if (cipher->iv_length != NULL)
+ return (int)cipher->iv_length();
+ return 0;
+ }
+
+ return cipher->iv_len;
+}
+
+int EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx)
+{
+ return EVP_CIPHER_iv_length(ctx->cipher);
+}
+
+const unsigned char *EVP_CIPHER_CTX_original_iv(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->oiv;
+}
+
+const unsigned char *EVP_CIPHER_CTX_iv(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->iv;
+}
+
+unsigned char *EVP_CIPHER_CTX_iv_noconst(EVP_CIPHER_CTX *ctx)
+{
+ return ctx->iv;
+}
+
+unsigned char *EVP_CIPHER_CTX_buf_noconst(EVP_CIPHER_CTX *ctx)
+{
+ return ctx->buf;
+}
+
+int EVP_CIPHER_CTX_num(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->num;
+}
+
+void EVP_CIPHER_CTX_set_num(EVP_CIPHER_CTX *ctx, int num)
+{
+ ctx->num = num;
+}
+
+int EVP_CIPHER_key_length(const EVP_CIPHER *cipher)
+{
+ if (cipher->prov != NULL) {
+ if (cipher->key_length != NULL)
+ return (int)cipher->key_length();
+ return -1;
+ }
+
+ return cipher->key_len;
+}
+
+int EVP_CIPHER_CTX_key_length(const EVP_CIPHER_CTX *ctx)
+{
+ /*
+ * TODO(3.0): This may need to change if/when we introduce variable length
+ * key ciphers into the providers.
+ */
+ if (ctx->cipher != NULL && ctx->cipher->prov != NULL)
+ return EVP_CIPHER_key_length(ctx->cipher);
+ return ctx->key_len;
+}
+
+int EVP_CIPHER_nid(const EVP_CIPHER *cipher)
+{
+ return cipher->nid;
+}
+
+int EVP_CIPHER_CTX_nid(const EVP_CIPHER_CTX *ctx)
+{
+ return ctx->cipher->nid;
+}
+
+int EVP_CIPHER_mode(const EVP_CIPHER *cipher)
+{
+ if (cipher->prov != NULL) {
+ int mode;
+
+ /* Cipher comes from a provider - so ask the provider for the mode */
+ OSSL_PARAM params[] = {
+ OSSL_PARAM_int(OSSL_CIPHER_PARAM_MODE, NULL),
+ OSSL_PARAM_END
+ };
+
+ params[0].data = &mode;
+
+ if (cipher->get_params == NULL) {
+ EVPerr(EVP_F_EVP_CIPHER_MODE, EVP_R_CTRL_NOT_IMPLEMENTED);
+ return 0;
+ }
+
+ if (!cipher->get_params(params))
+ return 0;
+
+ return mode;
+ }
+ return EVP_CIPHER_flags(cipher) & EVP_CIPH_MODE;
+}
+
+
+int EVP_MD_block_size(const EVP_MD *md)
+{
+ if (md == NULL) {
+ EVPerr(EVP_F_EVP_MD_BLOCK_SIZE, EVP_R_MESSAGE_DIGEST_IS_NULL);
+ return -1;
+ }
+
+ if (md->prov != NULL && md->dblock_size != NULL)
+ return (int)md->dblock_size();
+
+ return md->block_size;
+}
+
+int EVP_MD_type(const EVP_MD *md)
+{
+ return md->type;
+}
+
+int EVP_MD_pkey_type(const EVP_MD *md)
+{
+ return md->pkey_type;
+}
+
+int EVP_MD_size(const EVP_MD *md)
+{
+ if (!md) {
+ EVPerr(EVP_F_EVP_MD_SIZE, EVP_R_MESSAGE_DIGEST_IS_NULL);
+ return -1;
+ }
+
+ if (md->prov != NULL && md->size != NULL)
+ return (int)md->size();
+
+ return md->md_size;
+}
+
+unsigned long EVP_MD_flags(const EVP_MD *md)
+{
+ return md->flags;
+}
+
+EVP_MD *EVP_MD_meth_new(int md_type, int pkey_type)
+{
+ EVP_MD *md = OPENSSL_zalloc(sizeof(*md));
+
+ if (md != NULL) {
+ md->type = md_type;
+ md->pkey_type = pkey_type;
+ md->lock = CRYPTO_THREAD_lock_new();
+ if (md->lock == NULL) {
+ OPENSSL_free(md);
+ return NULL;
+ }
+ md->refcnt = 1;
+ }
+ return md;
+}
+
+EVP_MD *EVP_MD_meth_dup(const EVP_MD *md)
+{
+ EVP_MD *to = EVP_MD_meth_new(md->type, md->pkey_type);
+
+ if (to != NULL) {
+ CRYPTO_RWLOCK *lock = to->lock;
+ memcpy(to, md, sizeof(*to));
+ to->lock = lock;
+ }
+ return to;
+}
+
+int EVP_MD_up_ref(EVP_MD *md)
+{
+ int ref = 0;
+
+ CRYPTO_UP_REF(&md->refcnt, &ref, md->lock);
+ return 1;
+}
+
+void EVP_MD_meth_free(EVP_MD *md)
+{
+ if (md != NULL) {
+ int i;
+
+ CRYPTO_DOWN_REF(&md->refcnt, &i, md->lock);
+ if (i > 0)
+ return;
+ ossl_provider_free(md->prov);
+ CRYPTO_THREAD_lock_free(md->lock);
+ OPENSSL_free(md);
+ }
+}
+int EVP_MD_meth_set_input_blocksize(EVP_MD *md, int blocksize)
+{
+ md->block_size = blocksize;
+ return 1;
+}
+int EVP_MD_meth_set_result_size(EVP_MD *md, int resultsize)
+{
+ md->md_size = resultsize;
+ return 1;
+}
+int EVP_MD_meth_set_app_datasize(EVP_MD *md, int datasize)
+{
+ md->ctx_size = datasize;
+ return 1;
+}
+int EVP_MD_meth_set_flags(EVP_MD *md, unsigned long flags)
+{
+ md->flags = flags;
+ return 1;
+}
+int EVP_MD_meth_set_init(EVP_MD *md, int (*init)(EVP_MD_CTX *ctx))
+{
+ md->init = init;
+ return 1;
+}
+int EVP_MD_meth_set_update(EVP_MD *md, int (*update)(EVP_MD_CTX *ctx,
+ const void *data,
+ size_t count))
+{
+ md->update = update;
+ return 1;
+}
+int EVP_MD_meth_set_final(EVP_MD *md, int (*final)(EVP_MD_CTX *ctx,
+ unsigned char *md))
+{
+ md->final = final;
+ return 1;
+}
+int EVP_MD_meth_set_copy(EVP_MD *md, int (*copy)(EVP_MD_CTX *to,
+ const EVP_MD_CTX *from))
+{
+ md->copy = copy;
+ return 1;
+}
+int EVP_MD_meth_set_cleanup(EVP_MD *md, int (*cleanup)(EVP_MD_CTX *ctx))
+{
+ md->cleanup = cleanup;
+ return 1;
+}
+int EVP_MD_meth_set_ctrl(EVP_MD *md, int (*ctrl)(EVP_MD_CTX *ctx, int cmd,
+ int p1, void *p2))
+{
+ md->md_ctrl = ctrl;
+ return 1;
+}
+
+int EVP_MD_meth_get_input_blocksize(const EVP_MD *md)
+{
+ return md->block_size;
+}
+int EVP_MD_meth_get_result_size(const EVP_MD *md)
+{
+ return md->md_size;
+}
+int EVP_MD_meth_get_app_datasize(const EVP_MD *md)
+{
+ return md->ctx_size;
+}
+unsigned long EVP_MD_meth_get_flags(const EVP_MD *md)
+{
+ return md->flags;
+}
+int (*EVP_MD_meth_get_init(const EVP_MD *md))(EVP_MD_CTX *ctx)
+{
+ return md->init;
+}
+int (*EVP_MD_meth_get_update(const EVP_MD *md))(EVP_MD_CTX *ctx,
+ const void *data,
+ size_t count)
+{
+ return md->update;
+}
+int (*EVP_MD_meth_get_final(const EVP_MD *md))(EVP_MD_CTX *ctx,
+ unsigned char *md)
+{
+ return md->final;
+}
+int (*EVP_MD_meth_get_copy(const EVP_MD *md))(EVP_MD_CTX *to,
+ const EVP_MD_CTX *from)
+{
+ return md->copy;
+}
+int (*EVP_MD_meth_get_cleanup(const EVP_MD *md))(EVP_MD_CTX *ctx)
+{
+ return md->cleanup;
+}
+int (*EVP_MD_meth_get_ctrl(const EVP_MD *md))(EVP_MD_CTX *ctx, int cmd,
+ int p1, void *p2)
+{
+ return md->md_ctrl;
+}
+
+const EVP_MD *EVP_MD_CTX_md(const EVP_MD_CTX *ctx)
+{
+ if (ctx == NULL)
+ return NULL;
+ return ctx->reqdigest;
+}
+
+EVP_PKEY_CTX *EVP_MD_CTX_pkey_ctx(const EVP_MD_CTX *ctx)
+{
+ return ctx->pctx;
+}
+
+#if !defined(FIPS_MODE)
+/* TODO(3.0): EVP_DigestSign* not yet supported in FIPS module */
+void EVP_MD_CTX_set_pkey_ctx(EVP_MD_CTX *ctx, EVP_PKEY_CTX *pctx)
+{
+ /*
+ * it's reasonable to set NULL pctx (a.k.a clear the ctx->pctx), so
+ * we have to deal with the cleanup job here.
+ */
+ if (!EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX))
+ EVP_PKEY_CTX_free(ctx->pctx);
+
+ ctx->pctx = pctx;
+
+ if (pctx != NULL) {
+ /* make sure pctx is not freed when destroying EVP_MD_CTX */
+ EVP_MD_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX);
+ } else {
+ EVP_MD_CTX_clear_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX);
+ }
+}
+#endif /* !defined(FIPS_MODE) */
+
+void *EVP_MD_CTX_md_data(const EVP_MD_CTX *ctx)
+{
+ return ctx->md_data;
+}
+
+int (*EVP_MD_CTX_update_fn(EVP_MD_CTX *ctx))(EVP_MD_CTX *ctx,
+ const void *data, size_t count)
+{
+ return ctx->update;
+}
+
+void EVP_MD_CTX_set_update_fn(EVP_MD_CTX *ctx,
+ int (*update) (EVP_MD_CTX *ctx,
+ const void *data, size_t count))
+{
+ ctx->update = update;
+}
+
+void EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, int flags)
+{
+ ctx->flags |= flags;
+}
+
+void EVP_MD_CTX_clear_flags(EVP_MD_CTX *ctx, int flags)
+{
+ ctx->flags &= ~flags;
+}
+
+int EVP_MD_CTX_test_flags(const EVP_MD_CTX *ctx, int flags)
+{
+ return (ctx->flags & flags);
+}
+
+void EVP_CIPHER_CTX_set_flags(EVP_CIPHER_CTX *ctx, int flags)
+{
+ ctx->flags |= flags;
+}
+
+void EVP_CIPHER_CTX_clear_flags(EVP_CIPHER_CTX *ctx, int flags)
+{
+ ctx->flags &= ~flags;
+}
+
+int EVP_CIPHER_CTX_test_flags(const EVP_CIPHER_CTX *ctx, int flags)
+{
+ return (ctx->flags & flags);
+}
+
+int EVP_str2ctrl(int (*cb)(void *ctx, int cmd, void *buf, size_t buflen),
+ void *ctx, int cmd, const char *value)
+{
+ size_t len;
+
+ len = strlen(value);
+ if (len > INT_MAX)
+ return -1;
+ return cb(ctx, cmd, (void *)value, len);
+}
+
+int EVP_hex2ctrl(int (*cb)(void *ctx, int cmd, void *buf, size_t buflen),
+ void *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 = cb(ctx, cmd, bin, binlen);
+ OPENSSL_free(bin);
+ return rv;
+}
projects / openssl.git / blobdiff