/*
- * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
#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);
const int **, int);
static int ossltest_cipher_nids[] = {
- NID_aes_128_cbc, 0
+ NID_aes_128_cbc, NID_aes_128_gcm, 0
};
/* AES128 */
const unsigned char *iv, int enc);
int ossltest_aes128_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl);
+int ossltest_aes128_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc);
+int ossltest_aes128_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t inl);
+static int ossltest_aes128_gcm_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
+ void *ptr);
static EVP_CIPHER *_hidden_aes_128_cbc = NULL;
static const EVP_CIPHER *ossltest_aes_128_cbc(void)
}
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
+ && ((_hidden_aes_128_gcm = EVP_CIPHER_meth_new(NID_aes_128_gcm,
+ 1 /* block size */,
+ 16 /* key len */)) == NULL
+ || !EVP_CIPHER_meth_set_iv_length(_hidden_aes_128_gcm,12)
+ || !EVP_CIPHER_meth_set_flags(_hidden_aes_128_gcm, AES_GCM_FLAGS)
+ || !EVP_CIPHER_meth_set_init(_hidden_aes_128_gcm,
+ ossltest_aes128_gcm_init_key)
+ || !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_128_gcm,
+ ossltest_aes128_gcm_cipher)
+ || !EVP_CIPHER_meth_set_ctrl(_hidden_aes_128_gcm,
+ ossltest_aes128_gcm_ctrl)
+ || !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_128_gcm,
+ EVP_CIPHER_impl_ctx_size(EVP_aes_128_gcm())))) {
+ EVP_CIPHER_meth_free(_hidden_aes_128_gcm);
+ _hidden_aes_128_gcm = NULL;
+ }
+ return _hidden_aes_128_gcm;
+}
+
static void destroy_ciphers(void)
{
EVP_CIPHER_meth_free(_hidden_aes_128_cbc);
+ EVP_CIPHER_meth_free(_hidden_aes_128_gcm);
_hidden_aes_128_cbc = 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)) {
case NID_aes_128_cbc:
*cipher = ossltest_aes_128_cbc();
break;
+ case NID_aes_128_gcm:
+ *cipher = ossltest_aes_128_gcm();
+ break;
default:
ok = 0;
*cipher = NULL;
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_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc)
+{
+ return EVP_CIPHER_meth_get_init(EVP_aes_128_gcm()) (ctx, key, iv, enc);
+}
+
+
+int ossltest_aes128_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t inl)
+{
+ unsigned char *tmpbuf = OPENSSL_malloc(inl);
+
+ /* OPENSSL_malloc will return NULL if inl == 0 */
+ if (tmpbuf == NULL && inl > 0)
+ return -1;
+
+ /* Remember what we were asked to encrypt */
+ 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 */
+ if (tmpbuf != NULL && out != NULL)
+ memcpy(out, tmpbuf, inl);
+ OPENSSL_free(tmpbuf);
+
+ return inl;
+}
+
+static int ossltest_aes128_gcm_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
+ void *ptr)
+{
+ /* Pass the ctrl down */
+ int ret = EVP_CIPHER_meth_get_ctrl(EVP_aes_128_gcm())(ctx, type, arg, ptr);
+
+ 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;
+}
projects / openssl.git / blobdiff