/*
- * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2015-2020 The OpenSSL Project Authors. All Rights Reserved.
*
- * Licensed under the OpenSSL license (the "License"). You may not use
+ * 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
* used for any purpose except testing
*/
+/*
+ * SHA low level APIs are deprecated for public use, but still ok for
+ * internal use. Note, that due to symbols not being exported, only the
+ * #defines and type definitions can be accessed, function calls are not
+ * available. The digest lengths, block sizes and sizeof(CTX) are used herein
+ * for several different digests.
+ */
+#include "internal/deprecated.h"
+
#include <stdio.h>
#include <string.h>
#include <openssl/evp.h>
#include <openssl/modes.h>
#include <openssl/aes.h>
+#include <openssl/rand.h>
#include <openssl/crypto.h>
-#define OSSLTEST_LIB_NAME "OSSLTEST"
#include "e_ossltest_err.c"
/* Engine Id and Name */
/* Set up digests */
static int ossltest_digests(ENGINE *e, const EVP_MD **digest,
const int **nids, int nid);
+static const RAND_METHOD *ossltest_rand_method(void);
/* MD5 */
static int digest_md5_init(EVP_MD_CTX *ctx);
/* SHA384/SHA512 */
static int digest_sha384_init(EVP_MD_CTX *ctx);
+static int digest_sha384_update(EVP_MD_CTX *ctx, const void *data,
+ size_t count);
+static int digest_sha384_final(EVP_MD_CTX *ctx, unsigned char *md);
+
static int digest_sha512_init(EVP_MD_CTX *ctx);
static int digest_sha512_update(EVP_MD_CTX *ctx, const void *data,
size_t count);
-static int digest_sha384_final(EVP_MD_CTX *ctx, unsigned char *md);
static int digest_sha512_final(EVP_MD_CTX *ctx, unsigned char *md);
static EVP_MD *_hidden_sha384_md = NULL;
sizeof(EVP_MD *) + sizeof(SHA512_CTX))
|| !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_DIGALGID_ABSENT)
|| !EVP_MD_meth_set_init(md, digest_sha384_init)
- || !EVP_MD_meth_set_update(md, digest_sha512_update)
+ || !EVP_MD_meth_set_update(md, digest_sha384_update)
|| !EVP_MD_meth_set_final(md, digest_sha384_final)) {
EVP_MD_meth_free(md);
md = NULL;
return _hidden_aes_128_cbc;
}
static EVP_CIPHER *_hidden_aes_128_gcm = NULL;
+
#define AES_GCM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
| EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
| EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
| EVP_CIPH_CUSTOM_COPY |EVP_CIPH_FLAG_AEAD_CIPHER \
| EVP_CIPH_GCM_MODE)
+
static const EVP_CIPHER *ossltest_aes_128_gcm(void)
{
if (_hidden_aes_128_gcm == NULL
|| !ENGINE_set_name(e, engine_ossltest_name)
|| !ENGINE_set_digests(e, ossltest_digests)
|| !ENGINE_set_ciphers(e, ossltest_ciphers)
+ || !ENGINE_set_RAND(e, ossltest_rand_method())
|| !ENGINE_set_destroy_function(e, ossltest_destroy)
|| !ENGINE_set_init_function(e, ossltest_init)
|| !ENGINE_set_finish_function(e, ossltest_finish)) {
* value, so that all "MD5" digests using the test engine always end up with
* the same value.
*/
-#undef data
-#define data(ctx) ((MD5_CTX *)EVP_MD_CTX_md_data(ctx))
static int digest_md5_init(EVP_MD_CTX *ctx)
{
- return MD5_Init(data(ctx));
+ return EVP_MD_meth_get_init(EVP_md5())(ctx);
}
static int digest_md5_update(EVP_MD_CTX *ctx, const void *data,
size_t count)
{
- return MD5_Update(data(ctx), data, (size_t)count);
+ return EVP_MD_meth_get_update(EVP_md5())(ctx, data, count);
}
static int digest_md5_final(EVP_MD_CTX *ctx, unsigned char *md)
{
- int ret;
- ret = MD5_Final(md, data(ctx));
+ int ret = EVP_MD_meth_get_final(EVP_md5())(ctx, md);
if (ret > 0) {
fill_known_data(md, MD5_DIGEST_LENGTH);
/*
* SHA1 implementation.
*/
-#undef data
-#define data(ctx) ((SHA_CTX *)EVP_MD_CTX_md_data(ctx))
static int digest_sha1_init(EVP_MD_CTX *ctx)
{
- return SHA1_Init(data(ctx));
+ return EVP_MD_meth_get_init(EVP_sha1())(ctx);
}
static int digest_sha1_update(EVP_MD_CTX *ctx, const void *data,
size_t count)
{
- return SHA1_Update(data(ctx), data, (size_t)count);
+ return EVP_MD_meth_get_update(EVP_sha1())(ctx, data, count);
}
static int digest_sha1_final(EVP_MD_CTX *ctx, unsigned char *md)
{
- int ret;
- ret = SHA1_Final(md, data(ctx));
+ int ret = EVP_MD_meth_get_final(EVP_sha1())(ctx, md);
if (ret > 0) {
fill_known_data(md, SHA_DIGEST_LENGTH);
/*
* SHA256 implementation.
*/
-#undef data
-#define data(ctx) ((SHA256_CTX *)EVP_MD_CTX_md_data(ctx))
static int digest_sha256_init(EVP_MD_CTX *ctx)
{
- return SHA256_Init(data(ctx));
+ return EVP_MD_meth_get_init(EVP_sha256())(ctx);
}
static int digest_sha256_update(EVP_MD_CTX *ctx, const void *data,
size_t count)
{
- return SHA256_Update(data(ctx), data, (size_t)count);
+ return EVP_MD_meth_get_update(EVP_sha256())(ctx, data, count);
}
static int digest_sha256_final(EVP_MD_CTX *ctx, unsigned char *md)
{
- int ret;
- ret = SHA256_Final(md, data(ctx));
+ int ret = EVP_MD_meth_get_final(EVP_sha256())(ctx, md);
if (ret > 0) {
fill_known_data(md, SHA256_DIGEST_LENGTH);
}
/*
- * SHA384/512 implementation.
+ * SHA384 implementation.
*/
-#undef data
-#define data(ctx) ((SHA512_CTX *)EVP_MD_CTX_md_data(ctx))
static int digest_sha384_init(EVP_MD_CTX *ctx)
{
- return SHA384_Init(data(ctx));
-}
-
-static int digest_sha512_init(EVP_MD_CTX *ctx)
-{
- return SHA512_Init(data(ctx));
+ return EVP_MD_meth_get_init(EVP_sha384())(ctx);
}
-static int digest_sha512_update(EVP_MD_CTX *ctx, const void *data,
+static int digest_sha384_update(EVP_MD_CTX *ctx, const void *data,
size_t count)
{
- return SHA512_Update(data(ctx), data, (size_t)count);
+ return EVP_MD_meth_get_update(EVP_sha384())(ctx, data, count);
}
static int digest_sha384_final(EVP_MD_CTX *ctx, unsigned char *md)
{
- int ret;
- /* Actually uses SHA512_Final! */
- ret = SHA512_Final(md, data(ctx));
+ int ret = EVP_MD_meth_get_final(EVP_sha384())(ctx, md);
if (ret > 0) {
fill_known_data(md, SHA384_DIGEST_LENGTH);
return ret;
}
+/*
+ * SHA512 implementation.
+ */
+static int digest_sha512_init(EVP_MD_CTX *ctx)
+{
+ return EVP_MD_meth_get_init(EVP_sha512())(ctx);
+}
+
+static int digest_sha512_update(EVP_MD_CTX *ctx, const void *data,
+ size_t count)
+{
+ return EVP_MD_meth_get_update(EVP_sha512())(ctx, data, count);
+}
+
static int digest_sha512_final(EVP_MD_CTX *ctx, unsigned char *md)
{
- int ret;
- ret = SHA512_Final(md, data(ctx));
+ int ret = EVP_MD_meth_get_final(EVP_sha512())(ctx, md);
if (ret > 0) {
fill_known_data(md, SHA512_DIGEST_LENGTH);
int ret;
tmpbuf = OPENSSL_malloc(inl);
- if (tmpbuf == NULL)
+
+ /* OPENSSL_malloc will return NULL if inl == 0 */
+ if (tmpbuf == NULL && inl > 0)
return -1;
/* Remember what we were asked to encrypt */
- memcpy(tmpbuf, in, inl);
+ if (tmpbuf != NULL)
+ memcpy(tmpbuf, in, inl);
/* Go through the motions of encrypting it */
ret = EVP_CIPHER_meth_get_do_cipher(EVP_aes_128_cbc())(ctx, out, in, inl);
/* Throw it all away and just use the plaintext as the output */
- memcpy(out, tmpbuf, inl);
+ if (tmpbuf != NULL)
+ memcpy(out, tmpbuf, inl);
OPENSSL_free(tmpbuf);
return ret;
int ossltest_aes128_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl)
{
- unsigned char *tmpbuf;
- const size_t datalen = inl - EVP_GCM_TLS_EXPLICIT_IV_LEN
- - EVP_GCM_TLS_TAG_LEN;
+ unsigned char *tmpbuf = OPENSSL_malloc(inl);
- tmpbuf = OPENSSL_malloc(datalen);
- if (tmpbuf == NULL)
+ /* OPENSSL_malloc will return NULL if inl == 0 */
+ if (tmpbuf == NULL && inl > 0)
return -1;
/* Remember what we were asked to encrypt */
- memcpy(tmpbuf, in + EVP_GCM_TLS_EXPLICIT_IV_LEN, datalen);
+ if (tmpbuf != NULL)
+ memcpy(tmpbuf, in, inl);
/* Go through the motions of encrypting it */
EVP_CIPHER_meth_get_do_cipher(EVP_aes_128_gcm())(ctx, out, in, inl);
- /*
- * Throw it all away and just use the plaintext as the output with empty
- * IV and tag
- */
- memset(out, 0, inl);
- memcpy(out + EVP_GCM_TLS_EXPLICIT_IV_LEN, tmpbuf, datalen);
+ /* Throw it all away and just use the plaintext as the output */
+ if (tmpbuf != NULL && out != NULL)
+ memcpy(out, tmpbuf, inl);
OPENSSL_free(tmpbuf);
- return 1;
+ return inl;
}
static int ossltest_aes128_gcm_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
void *ptr)
{
- int ret;
-
/* Pass the ctrl down */
- ret = EVP_CIPHER_meth_get_ctrl(EVP_aes_128_gcm())(ctx, type, arg, ptr);
+ int ret = EVP_CIPHER_meth_get_ctrl(EVP_aes_128_gcm())(ctx, type, arg, ptr);
- return ret;
+ if (ret <= 0)
+ return ret;
+
+ switch(type) {
+ case EVP_CTRL_AEAD_GET_TAG:
+ /* Always give the same tag */
+ memset(ptr, 0, EVP_GCM_TLS_TAG_LEN);
+ break;
+
+ default:
+ break;
+ }
+
+ return 1;
+}
+
+static int ossltest_rand_bytes(unsigned char *buf, int num)
+{
+ unsigned char val = 1;
+
+ while (--num >= 0)
+ *buf++ = val++;
+ return 1;
+}
+
+static int ossltest_rand_status(void)
+{
+ return 1;
+}
+
+static const RAND_METHOD *ossltest_rand_method(void)
+{
+
+ static RAND_METHOD osslt_rand_meth = {
+ NULL,
+ ossltest_rand_bytes,
+ NULL,
+ NULL,
+ ossltest_rand_bytes,
+ ossltest_rand_status
+ };
+
+ return &osslt_rand_meth;
}
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