--- /dev/null
+/*
+ * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project.
+ */
+/* ====================================================================
+ * Copyright (c) 2015 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.
+ * ====================================================================
+ */
+
+#include <openssl/evp.h>
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+OPENSSL_MSVC_PRAGMA(warning(push))
+OPENSSL_MSVC_PRAGMA(warning(disable: 4702))
+
+#include <map>
+#include <string>
+#include <utility>
+#include <vector>
+
+OPENSSL_MSVC_PRAGMA(warning(pop))
+
+#include <gtest/gtest.h>
+
+#include <openssl/buf.h>
+#include <openssl/bytestring.h>
+#include <openssl/crypto.h>
+#include <openssl/digest.h>
+#include <openssl/err.h>
+#include <openssl/rsa.h>
+
+#include "../test/file_test.h"
+#include "../test/test_util.h"
+
+
+// evp_test dispatches between multiple test types. PrivateKey tests take a key
+// name parameter and single block, decode it as a PEM private key, and save it
+// under that key name. Decrypt, Sign, and Verify tests take a previously
+// imported key name as parameter and test their respective operations.
+
+static const EVP_MD *GetDigest(FileTest *t, const std::string &name) {
+ if (name == "MD5") {
+ return EVP_md5();
+ } else if (name == "SHA1") {
+ return EVP_sha1();
+ } else if (name == "SHA224") {
+ return EVP_sha224();
+ } else if (name == "SHA256") {
+ return EVP_sha256();
+ } else if (name == "SHA384") {
+ return EVP_sha384();
+ } else if (name == "SHA512") {
+ return EVP_sha512();
+ }
+ ADD_FAILURE() << "Unknown digest: " << name;
+ return nullptr;
+}
+
+static int GetKeyType(FileTest *t, const std::string &name) {
+ if (name == "RSA") {
+ return EVP_PKEY_RSA;
+ }
+ if (name == "EC") {
+ return EVP_PKEY_EC;
+ }
+ if (name == "DSA") {
+ return EVP_PKEY_DSA;
+ }
+ if (name == "Ed25519") {
+ return EVP_PKEY_ED25519;
+ }
+ ADD_FAILURE() << "Unknown key type: " << name;
+ return EVP_PKEY_NONE;
+}
+
+static int GetRSAPadding(FileTest *t, int *out, const std::string &name) {
+ if (name == "PKCS1") {
+ *out = RSA_PKCS1_PADDING;
+ return true;
+ }
+ if (name == "PSS") {
+ *out = RSA_PKCS1_PSS_PADDING;
+ return true;
+ }
+ if (name == "OAEP") {
+ *out = RSA_PKCS1_OAEP_PADDING;
+ return true;
+ }
+ ADD_FAILURE() << "Unknown RSA padding mode: " << name;
+ return false;
+}
+
+using KeyMap = std::map<std::string, bssl::UniquePtr<EVP_PKEY>>;
+
+static bool ImportKey(FileTest *t, KeyMap *key_map,
+ EVP_PKEY *(*parse_func)(CBS *cbs),
+ int (*marshal_func)(CBB *cbb, const EVP_PKEY *key)) {
+ std::vector<uint8_t> input;
+ if (!t->GetBytes(&input, "Input")) {
+ return false;
+ }
+
+ CBS cbs;
+ CBS_init(&cbs, input.data(), input.size());
+ bssl::UniquePtr<EVP_PKEY> pkey(parse_func(&cbs));
+ if (!pkey) {
+ return false;
+ }
+
+ std::string key_type;
+ if (!t->GetAttribute(&key_type, "Type")) {
+ return false;
+ }
+ EXPECT_EQ(GetKeyType(t, key_type), EVP_PKEY_id(pkey.get()));
+
+ // The key must re-encode correctly.
+ bssl::ScopedCBB cbb;
+ uint8_t *der;
+ size_t der_len;
+ if (!CBB_init(cbb.get(), 0) ||
+ !marshal_func(cbb.get(), pkey.get()) ||
+ !CBB_finish(cbb.get(), &der, &der_len)) {
+ return false;
+ }
+ bssl::UniquePtr<uint8_t> free_der(der);
+
+ std::vector<uint8_t> output = input;
+ if (t->HasAttribute("Output") &&
+ !t->GetBytes(&output, "Output")) {
+ return false;
+ }
+ EXPECT_EQ(Bytes(output), Bytes(der, der_len)) << "Re-encoding the key did not match.";
+
+ // Save the key for future tests.
+ const std::string &key_name = t->GetParameter();
+ EXPECT_EQ(0u, key_map->count(key_name)) << "Duplicate key: " << key_name;
+ (*key_map)[key_name] = std::move(pkey);
+ return true;
+}
+
+// SetupContext configures |ctx| based on attributes in |t|, with the exception
+// of the signing digest which must be configured externally.
+static bool SetupContext(FileTest *t, EVP_PKEY_CTX *ctx) {
+ if (t->HasAttribute("RSAPadding")) {
+ int padding;
+ if (!GetRSAPadding(t, &padding, t->GetAttributeOrDie("RSAPadding")) ||
+ !EVP_PKEY_CTX_set_rsa_padding(ctx, padding)) {
+ return false;
+ }
+ }
+ if (t->HasAttribute("PSSSaltLength") &&
+ !EVP_PKEY_CTX_set_rsa_pss_saltlen(
+ ctx, atoi(t->GetAttributeOrDie("PSSSaltLength").c_str()))) {
+ return false;
+ }
+ if (t->HasAttribute("MGF1Digest")) {
+ const EVP_MD *digest = GetDigest(t, t->GetAttributeOrDie("MGF1Digest"));
+ if (digest == nullptr || !EVP_PKEY_CTX_set_rsa_mgf1_md(ctx, digest)) {
+ return false;
+ }
+ }
+ if (t->HasAttribute("OAEPDigest")) {
+ const EVP_MD *digest = GetDigest(t, t->GetAttributeOrDie("OAEPDigest"));
+ if (digest == nullptr || !EVP_PKEY_CTX_set_rsa_oaep_md(ctx, digest)) {
+ return false;
+ }
+ }
+ if (t->HasAttribute("OAEPLabel")) {
+ std::vector<uint8_t> label;
+ if (!t->GetBytes(&label, "OAEPLabel")) {
+ return false;
+ }
+ // For historical reasons, |EVP_PKEY_CTX_set0_rsa_oaep_label| expects to be
+ // take ownership of the input.
+ bssl::UniquePtr<uint8_t> buf(
+ reinterpret_cast<uint8_t *>(BUF_memdup(label.data(), label.size())));
+ if (!buf ||
+ !EVP_PKEY_CTX_set0_rsa_oaep_label(ctx, buf.get(), label.size())) {
+ return false;
+ }
+ buf.release();
+ }
+ return true;
+}
+
+static bool TestEVP(FileTest *t, KeyMap *key_map) {
+ if (t->GetType() == "PrivateKey") {
+ return ImportKey(t, key_map, EVP_parse_private_key,
+ EVP_marshal_private_key);
+ }
+
+ if (t->GetType() == "PublicKey") {
+ return ImportKey(t, key_map, EVP_parse_public_key, EVP_marshal_public_key);
+ }
+
+ int (*key_op_init)(EVP_PKEY_CTX *ctx) = nullptr;
+ int (*key_op)(EVP_PKEY_CTX *ctx, uint8_t *out, size_t *out_len,
+ const uint8_t *in, size_t in_len) = nullptr;
+ int (*md_op_init)(EVP_MD_CTX * ctx, EVP_PKEY_CTX * *pctx, const EVP_MD *type,
+ ENGINE *e, EVP_PKEY *pkey) = nullptr;
+ bool is_verify = false;
+ if (t->GetType() == "Decrypt") {
+ key_op_init = EVP_PKEY_decrypt_init;
+ key_op = EVP_PKEY_decrypt;
+ } else if (t->GetType() == "Sign") {
+ key_op_init = EVP_PKEY_sign_init;
+ key_op = EVP_PKEY_sign;
+ } else if (t->GetType() == "Verify") {
+ key_op_init = EVP_PKEY_verify_init;
+ is_verify = true;
+ } else if (t->GetType() == "SignMessage") {
+ md_op_init = EVP_DigestSignInit;
+ } else if (t->GetType() == "VerifyMessage") {
+ md_op_init = EVP_DigestVerifyInit;
+ is_verify = true;
+ } else if (t->GetType() == "Encrypt") {
+ key_op_init = EVP_PKEY_encrypt_init;
+ key_op = EVP_PKEY_encrypt;
+ } else {
+ ADD_FAILURE() << "Unknown test " << t->GetType();
+ return false;
+ }
+
+ // Load the key.
+ const std::string &key_name = t->GetParameter();
+ if (key_map->count(key_name) == 0) {
+ ADD_FAILURE() << "Could not find key " << key_name;
+ return false;
+ }
+ EVP_PKEY *key = (*key_map)[key_name].get();
+
+ const EVP_MD *digest = nullptr;
+ if (t->HasAttribute("Digest")) {
+ digest = GetDigest(t, t->GetAttributeOrDie("Digest"));
+ if (digest == nullptr) {
+ return false;
+ }
+ }
+
+ // For verify tests, the "output" is the signature. Read it now so that, for
+ // tests which expect a failure in SetupContext, the attribute is still
+ // consumed.
+ std::vector<uint8_t> input, actual, output;
+ if (!t->GetBytes(&input, "Input") ||
+ (is_verify && !t->GetBytes(&output, "Output"))) {
+ return false;
+ }
+
+ if (md_op_init) {
+ bssl::ScopedEVP_MD_CTX ctx;
+ EVP_PKEY_CTX *pctx;
+ if (!md_op_init(ctx.get(), &pctx, digest, nullptr, key) ||
+ !SetupContext(t, pctx)) {
+ return false;
+ }
+
+ if (is_verify) {
+ return !!EVP_DigestVerify(ctx.get(), output.data(), output.size(),
+ input.data(), input.size());
+ }
+
+ size_t len;
+ if (!EVP_DigestSign(ctx.get(), nullptr, &len, input.data(), input.size())) {
+ return false;
+ }
+ actual.resize(len);
+ if (!EVP_DigestSign(ctx.get(), actual.data(), &len, input.data(),
+ input.size()) ||
+ !t->GetBytes(&output, "Output")) {
+ return false;
+ }
+ actual.resize(len);
+ EXPECT_EQ(Bytes(output), Bytes(actual));
+ return true;
+ }
+
+ bssl::UniquePtr<EVP_PKEY_CTX> ctx(EVP_PKEY_CTX_new(key, nullptr));
+ if (!ctx ||
+ !key_op_init(ctx.get()) ||
+ (digest != nullptr &&
+ !EVP_PKEY_CTX_set_signature_md(ctx.get(), digest)) ||
+ !SetupContext(t, ctx.get())) {
+ return false;
+ }
+
+ if (is_verify) {
+ return !!EVP_PKEY_verify(ctx.get(), output.data(), output.size(),
+ input.data(), input.size());
+ }
+
+ size_t len;
+ if (!key_op(ctx.get(), nullptr, &len, input.data(), input.size())) {
+ return false;
+ }
+ actual.resize(len);
+ if (!key_op(ctx.get(), actual.data(), &len, input.data(), input.size())) {
+ return false;
+ }
+
+ // Encryption is non-deterministic, so we check by decrypting.
+ if (t->HasAttribute("CheckDecrypt")) {
+ size_t plaintext_len;
+ ctx.reset(EVP_PKEY_CTX_new(key, nullptr));
+ if (!ctx ||
+ !EVP_PKEY_decrypt_init(ctx.get()) ||
+ (digest != nullptr &&
+ !EVP_PKEY_CTX_set_signature_md(ctx.get(), digest)) ||
+ !SetupContext(t, ctx.get()) ||
+ !EVP_PKEY_decrypt(ctx.get(), nullptr, &plaintext_len, actual.data(),
+ actual.size())) {
+ return false;
+ }
+ output.resize(plaintext_len);
+ if (!EVP_PKEY_decrypt(ctx.get(), output.data(), &plaintext_len,
+ actual.data(), actual.size())) {
+ ADD_FAILURE() << "Could not decrypt result.";
+ return false;
+ }
+ output.resize(plaintext_len);
+ EXPECT_EQ(Bytes(input), Bytes(output)) << "Decrypted result mismatch.";
+ return true;
+ }
+
+ // Some signature schemes are non-deterministic, so we check by verifying.
+ if (t->HasAttribute("CheckVerify")) {
+ ctx.reset(EVP_PKEY_CTX_new(key, nullptr));
+ if (!ctx ||
+ !EVP_PKEY_verify_init(ctx.get()) ||
+ (digest != nullptr &&
+ !EVP_PKEY_CTX_set_signature_md(ctx.get(), digest)) ||
+ !SetupContext(t, ctx.get())) {
+ return false;
+ }
+ if (t->HasAttribute("VerifyPSSSaltLength") &&
+ !EVP_PKEY_CTX_set_rsa_pss_saltlen(
+ ctx.get(),
+ atoi(t->GetAttributeOrDie("VerifyPSSSaltLength").c_str()))) {
+ return false;
+ }
+ EXPECT_TRUE(EVP_PKEY_verify(ctx.get(), actual.data(), actual.size(),
+ input.data(), input.size()))
+ << "Could not verify result.";
+ return true;
+ }
+
+ // By default, check by comparing the result against Output.
+ if (!t->GetBytes(&output, "Output")) {
+ return false;
+ }
+ actual.resize(len);
+ EXPECT_EQ(Bytes(output), Bytes(actual));
+ return true;
+}
+
+TEST(EVPTest, TestVectors) {
+ KeyMap key_map;
+ FileTestGTest("crypto/evp/evp_tests.txt", [&](FileTest *t) {
+ bool result = TestEVP(t, &key_map);
+ if (t->HasAttribute("Error")) {
+ ASSERT_FALSE(result) << "Operation unexpectedly succeeded.";
+ uint32_t err = ERR_peek_error();
+ EXPECT_EQ(t->GetAttributeOrDie("Error"), ERR_reason_error_string(err));
+ } else if (!result) {
+ ADD_FAILURE() << "Operation unexpectedly failed.";
+ }
+ });
+}
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