Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 696 insertions, 0 deletions

diff --git a/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/engines/e_ossltest.c b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/engines/e_ossltest.c
new file mode 100644
index 000000000..64376247c
--- /dev/null
+++ b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/engines/e_ossltest.c
@@ -0,0 +1,696 @@
+/*
+ * 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
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/*
+ * This is the OSSLTEST engine. It provides deliberately crippled digest
+ * implementations for test purposes. It is highly insecure and must NOT be
+ * used for any purpose except testing
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#include <openssl/engine.h>
+#include <openssl/sha.h>
+#include <openssl/md5.h>
+#include <openssl/rsa.h>
+#include <openssl/evp.h>
+#include <openssl/modes.h>
+#include <openssl/aes.h>
+#include <openssl/rand.h>
+#include <openssl/crypto.h>
+
+#include "e_ossltest_err.c"
+
+/* Engine Id and Name */
+static const char *engine_ossltest_id = "ossltest";
+static const char *engine_ossltest_name = "OpenSSL Test engine support";
+
+
+/* Engine Lifetime functions */
+static int ossltest_destroy(ENGINE *e);
+static int ossltest_init(ENGINE *e);
+static int ossltest_finish(ENGINE *e);
+void ENGINE_load_ossltest(void);
+
+
+/* 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);
+static int digest_md5_update(EVP_MD_CTX *ctx, const void *data,
+                             size_t count);
+static int digest_md5_final(EVP_MD_CTX *ctx, unsigned char *md);
+
+static EVP_MD *_hidden_md5_md = NULL;
+static const EVP_MD *digest_md5(void)
+{
+    if (_hidden_md5_md == NULL) {
+        EVP_MD *md;
+
+        if ((md = EVP_MD_meth_new(NID_md5, NID_md5WithRSAEncryption)) == NULL
+            || !EVP_MD_meth_set_result_size(md, MD5_DIGEST_LENGTH)
+            || !EVP_MD_meth_set_input_blocksize(md, MD5_CBLOCK)
+            || !EVP_MD_meth_set_app_datasize(md,
+                                             sizeof(EVP_MD *) + sizeof(MD5_CTX))
+            || !EVP_MD_meth_set_flags(md, 0)
+            || !EVP_MD_meth_set_init(md, digest_md5_init)
+            || !EVP_MD_meth_set_update(md, digest_md5_update)
+            || !EVP_MD_meth_set_final(md, digest_md5_final)) {
+            EVP_MD_meth_free(md);
+            md = NULL;
+        }
+        _hidden_md5_md = md;
+    }
+    return _hidden_md5_md;
+}
+
+/* SHA1 */
+static int digest_sha1_init(EVP_MD_CTX *ctx);
+static int digest_sha1_update(EVP_MD_CTX *ctx, const void *data,
+                              size_t count);
+static int digest_sha1_final(EVP_MD_CTX *ctx, unsigned char *md);
+
+static EVP_MD *_hidden_sha1_md = NULL;
+static const EVP_MD *digest_sha1(void)
+{
+    if (_hidden_sha1_md == NULL) {
+        EVP_MD *md;
+
+        if ((md = EVP_MD_meth_new(NID_sha1, NID_sha1WithRSAEncryption)) == NULL
+            || !EVP_MD_meth_set_result_size(md, SHA_DIGEST_LENGTH)
+            || !EVP_MD_meth_set_input_blocksize(md, SHA_CBLOCK)
+            || !EVP_MD_meth_set_app_datasize(md,
+                                             sizeof(EVP_MD *) + sizeof(SHA_CTX))
+            || !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_DIGALGID_ABSENT)
+            || !EVP_MD_meth_set_init(md, digest_sha1_init)
+            || !EVP_MD_meth_set_update(md, digest_sha1_update)
+            || !EVP_MD_meth_set_final(md, digest_sha1_final)) {
+            EVP_MD_meth_free(md);
+            md = NULL;
+        }
+        _hidden_sha1_md = md;
+    }
+    return _hidden_sha1_md;
+}
+
+/* SHA256 */
+static int digest_sha256_init(EVP_MD_CTX *ctx);
+static int digest_sha256_update(EVP_MD_CTX *ctx, const void *data,
+                                size_t count);
+static int digest_sha256_final(EVP_MD_CTX *ctx, unsigned char *md);
+
+static EVP_MD *_hidden_sha256_md = NULL;
+static const EVP_MD *digest_sha256(void)
+{
+    if (_hidden_sha256_md == NULL) {
+        EVP_MD *md;
+
+        if ((md = EVP_MD_meth_new(NID_sha256, NID_sha256WithRSAEncryption)) == NULL
+            || !EVP_MD_meth_set_result_size(md, SHA256_DIGEST_LENGTH)
+            || !EVP_MD_meth_set_input_blocksize(md, SHA256_CBLOCK)
+            || !EVP_MD_meth_set_app_datasize(md,
+                                             sizeof(EVP_MD *) + sizeof(SHA256_CTX))
+            || !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_DIGALGID_ABSENT)
+            || !EVP_MD_meth_set_init(md, digest_sha256_init)
+            || !EVP_MD_meth_set_update(md, digest_sha256_update)
+            || !EVP_MD_meth_set_final(md, digest_sha256_final)) {
+            EVP_MD_meth_free(md);
+            md = NULL;
+        }
+        _hidden_sha256_md = md;
+    }
+    return _hidden_sha256_md;
+}
+
+/* SHA384/SHA512 */
+static int digest_sha384_init(EVP_MD_CTX *ctx);
+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;
+static const EVP_MD *digest_sha384(void)
+{
+    if (_hidden_sha384_md == NULL) {
+        EVP_MD *md;
+
+        if ((md = EVP_MD_meth_new(NID_sha384, NID_sha384WithRSAEncryption)) == NULL
+            || !EVP_MD_meth_set_result_size(md, SHA384_DIGEST_LENGTH)
+            || !EVP_MD_meth_set_input_blocksize(md, SHA512_CBLOCK)
+            || !EVP_MD_meth_set_app_datasize(md,
+                                             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_final(md, digest_sha384_final)) {
+            EVP_MD_meth_free(md);
+            md = NULL;
+        }
+        _hidden_sha384_md = md;
+    }
+    return _hidden_sha384_md;
+}
+static EVP_MD *_hidden_sha512_md = NULL;
+static const EVP_MD *digest_sha512(void)
+{
+    if (_hidden_sha512_md == NULL) {
+        EVP_MD *md;
+
+        if ((md = EVP_MD_meth_new(NID_sha512, NID_sha512WithRSAEncryption)) == NULL
+            || !EVP_MD_meth_set_result_size(md, SHA512_DIGEST_LENGTH)
+            || !EVP_MD_meth_set_input_blocksize(md, SHA512_CBLOCK)
+            || !EVP_MD_meth_set_app_datasize(md,
+                                             sizeof(EVP_MD *) + sizeof(SHA512_CTX))
+            || !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_DIGALGID_ABSENT)
+            || !EVP_MD_meth_set_init(md, digest_sha512_init)
+            || !EVP_MD_meth_set_update(md, digest_sha512_update)
+            || !EVP_MD_meth_set_final(md, digest_sha512_final)) {
+            EVP_MD_meth_free(md);
+            md = NULL;
+        }
+        _hidden_sha512_md = md;
+    }
+    return _hidden_sha512_md;
+}
+static void destroy_digests(void)
+{
+    EVP_MD_meth_free(_hidden_md5_md);
+    _hidden_md5_md = NULL;
+    EVP_MD_meth_free(_hidden_sha1_md);
+    _hidden_sha1_md = NULL;
+    EVP_MD_meth_free(_hidden_sha256_md);
+    _hidden_sha256_md = NULL;
+    EVP_MD_meth_free(_hidden_sha384_md);
+    _hidden_sha384_md = NULL;
+    EVP_MD_meth_free(_hidden_sha512_md);
+    _hidden_sha512_md = NULL;
+}
+static int ossltest_digest_nids(const int **nids)
+{
+    static int digest_nids[6] = { 0, 0, 0, 0, 0, 0 };
+    static int pos = 0;
+    static int init = 0;
+
+    if (!init) {
+        const EVP_MD *md;
+        if ((md = digest_md5()) != NULL)
+            digest_nids[pos++] = EVP_MD_type(md);
+        if ((md = digest_sha1()) != NULL)
+            digest_nids[pos++] = EVP_MD_type(md);
+        if ((md = digest_sha256()) != NULL)
+            digest_nids[pos++] = EVP_MD_type(md);
+        if ((md = digest_sha384()) != NULL)
+            digest_nids[pos++] = EVP_MD_type(md);
+        if ((md = digest_sha512()) != NULL)
+            digest_nids[pos++] = EVP_MD_type(md);
+        digest_nids[pos] = 0;
+        init = 1;
+    }
+    *nids = digest_nids;
+    return pos;
+}
+
+/* Setup ciphers */
+static int ossltest_ciphers(ENGINE *, const EVP_CIPHER **,
+                            const int **, int);
+
+static int ossltest_cipher_nids[] = {
+    NID_aes_128_cbc, NID_aes_128_gcm, 0
+};
+
+/* AES128 */
+
+int ossltest_aes128_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+                             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)
+{
+    if (_hidden_aes_128_cbc == NULL
+        && ((_hidden_aes_128_cbc = EVP_CIPHER_meth_new(NID_aes_128_cbc,
+                                                       16 /* block size */,
+                                                       16 /* key len */)) == NULL
+            || !EVP_CIPHER_meth_set_iv_length(_hidden_aes_128_cbc,16)
+            || !EVP_CIPHER_meth_set_flags(_hidden_aes_128_cbc,
+                                          EVP_CIPH_FLAG_DEFAULT_ASN1
+                                          | EVP_CIPH_CBC_MODE)
+            || !EVP_CIPHER_meth_set_init(_hidden_aes_128_cbc,
+                                         ossltest_aes128_init_key)
+            || !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_128_cbc,
+                                              ossltest_aes128_cbc_cipher)
+            || !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_128_cbc,
+                                                  EVP_CIPHER_impl_ctx_size(EVP_aes_128_cbc())))) {
+        EVP_CIPHER_meth_free(_hidden_aes_128_cbc);
+        _hidden_aes_128_cbc = 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
+        && ((_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;
+}
+
+static int bind_ossltest(ENGINE *e)
+{
+    /* Ensure the ossltest error handling is set up */
+    ERR_load_OSSLTEST_strings();
+
+    if (!ENGINE_set_id(e, engine_ossltest_id)
+        || !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)) {
+        OSSLTESTerr(OSSLTEST_F_BIND_OSSLTEST, OSSLTEST_R_INIT_FAILED);
+        return 0;
+    }
+
+    return 1;
+}
+
+#ifndef OPENSSL_NO_DYNAMIC_ENGINE
+static int bind_helper(ENGINE *e, const char *id)
+{
+    if (id && (strcmp(id, engine_ossltest_id) != 0))
+        return 0;
+    if (!bind_ossltest(e))
+        return 0;
+    return 1;
+}
+
+IMPLEMENT_DYNAMIC_CHECK_FN()
+    IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
+#endif
+
+static ENGINE *engine_ossltest(void)
+{
+    ENGINE *ret = ENGINE_new();
+    if (ret == NULL)
+        return NULL;
+    if (!bind_ossltest(ret)) {
+        ENGINE_free(ret);
+        return NULL;
+    }
+    return ret;
+}
+
+void ENGINE_load_ossltest(void)
+{
+    /* Copied from eng_[openssl|dyn].c */
+    ENGINE *toadd = engine_ossltest();
+    if (!toadd)
+        return;
+    ENGINE_add(toadd);
+    ENGINE_free(toadd);
+    ERR_clear_error();
+}
+
+
+static int ossltest_init(ENGINE *e)
+{
+    return 1;
+}
+
+
+static int ossltest_finish(ENGINE *e)
+{
+    return 1;
+}
+
+
+static int ossltest_destroy(ENGINE *e)
+{
+    destroy_digests();
+    destroy_ciphers();
+    ERR_unload_OSSLTEST_strings();
+    return 1;
+}
+
+static int ossltest_digests(ENGINE *e, const EVP_MD **digest,
+                          const int **nids, int nid)
+{
+    int ok = 1;
+    if (!digest) {
+        /* We are returning a list of supported nids */
+        return ossltest_digest_nids(nids);
+    }
+    /* We are being asked for a specific digest */
+    switch (nid) {
+    case NID_md5:
+        *digest = digest_md5();
+        break;
+    case NID_sha1:
+        *digest = digest_sha1();
+        break;
+    case NID_sha256:
+        *digest = digest_sha256();
+        break;
+    case NID_sha384:
+        *digest = digest_sha384();
+        break;
+    case NID_sha512:
+        *digest = digest_sha512();
+        break;
+    default:
+        ok = 0;
+        *digest = NULL;
+        break;
+    }
+    return ok;
+}
+
+static int ossltest_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
+                          const int **nids, int nid)
+{
+    int ok = 1;
+    if (!cipher) {
+        /* We are returning a list of supported nids */
+        *nids = ossltest_cipher_nids;
+        return (sizeof(ossltest_cipher_nids) - 1)
+               / sizeof(ossltest_cipher_nids[0]);
+    }
+    /* We are being asked for a specific cipher */
+    switch (nid) {
+    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;
+        break;
+    }
+    return ok;
+}
+
+static void fill_known_data(unsigned char *md, unsigned int len)
+{
+    unsigned int i;
+
+    for (i=0; i<len; i++) {
+        md[i] = (unsigned char)(i & 0xff);
+    }
+}
+
+/*
+ * MD5 implementation. We go through the motions of doing MD5 by deferring to
+ * the standard implementation. Then we overwrite the result with a will defined
+ * 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));
+}
+
+static int digest_md5_update(EVP_MD_CTX *ctx, const void *data,
+                             size_t count)
+{
+    return MD5_Update(data(ctx), data, (size_t)count);
+}
+
+static int digest_md5_final(EVP_MD_CTX *ctx, unsigned char *md)
+{
+    int ret;
+    ret = MD5_Final(md, data(ctx));
+
+    if (ret > 0) {
+        fill_known_data(md, MD5_DIGEST_LENGTH);
+    }
+    return ret;
+}
+
+/*
+ * 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));
+}
+
+static int digest_sha1_update(EVP_MD_CTX *ctx, const void *data,
+                              size_t count)
+{
+    return SHA1_Update(data(ctx), data, (size_t)count);
+}
+
+static int digest_sha1_final(EVP_MD_CTX *ctx, unsigned char *md)
+{
+    int ret;
+    ret = SHA1_Final(md, data(ctx));
+
+    if (ret > 0) {
+        fill_known_data(md, SHA_DIGEST_LENGTH);
+    }
+    return ret;
+}
+
+/*
+ * 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));
+}
+
+static int digest_sha256_update(EVP_MD_CTX *ctx, const void *data,
+                                size_t count)
+{
+    return SHA256_Update(data(ctx), data, (size_t)count);
+}
+
+static int digest_sha256_final(EVP_MD_CTX *ctx, unsigned char *md)
+{
+    int ret;
+    ret = SHA256_Final(md, data(ctx));
+
+    if (ret > 0) {
+        fill_known_data(md, SHA256_DIGEST_LENGTH);
+    }
+    return ret;
+}
+
+/*
+ * SHA384/512 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));
+}
+
+static int digest_sha512_update(EVP_MD_CTX *ctx, const void *data,
+                                size_t count)
+{
+    return SHA512_Update(data(ctx), data, (size_t)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));
+
+    if (ret > 0) {
+        fill_known_data(md, SHA384_DIGEST_LENGTH);
+    }
+    return ret;
+}
+
+static int digest_sha512_final(EVP_MD_CTX *ctx, unsigned char *md)
+{
+    int ret;
+    ret = SHA512_Final(md, data(ctx));
+
+    if (ret > 0) {
+        fill_known_data(md, SHA512_DIGEST_LENGTH);
+    }
+    return ret;
+}
+
+/*
+ * AES128 Implementation
+ */
+
+int ossltest_aes128_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_cbc()) (ctx, key, iv, enc);
+}
+
+int ossltest_aes128_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+                               const unsigned char *in, size_t inl)
+{
+    unsigned char *tmpbuf;
+    int ret;
+
+    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 */
+    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 */
+    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;
+}