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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "crypto/ec_signature_creator.h"
      6 
      7 #include <string>
      8 #include <vector>
      9 
     10 #include "base/memory/scoped_ptr.h"
     11 #include "crypto/ec_private_key.h"
     12 #include "crypto/signature_verifier.h"
     13 #include "testing/gtest/include/gtest/gtest.h"
     14 
     15 // TODO(rch): Add some exported keys from each to
     16 // test interop between NSS and OpenSSL.
     17 
     18 TEST(ECSignatureCreatorTest, BasicTest) {
     19   // Do a verify round trip.
     20   scoped_ptr<crypto::ECPrivateKey> key_original(
     21       crypto::ECPrivateKey::Create());
     22   ASSERT_TRUE(key_original.get());
     23 
     24   std::vector<uint8> key_info;
     25   ASSERT_TRUE(
     26       key_original->ExportEncryptedPrivateKey(std::string(), 1000, &key_info));
     27   std::vector<uint8> pubkey_info;
     28   ASSERT_TRUE(key_original->ExportPublicKey(&pubkey_info));
     29 
     30   scoped_ptr<crypto::ECPrivateKey> key(
     31       crypto::ECPrivateKey::CreateFromEncryptedPrivateKeyInfo(
     32           std::string(), key_info, pubkey_info));
     33   ASSERT_TRUE(key.get());
     34   ASSERT_TRUE(key->key() != NULL);
     35 
     36   scoped_ptr<crypto::ECSignatureCreator> signer(
     37       crypto::ECSignatureCreator::Create(key.get()));
     38   ASSERT_TRUE(signer.get());
     39 
     40   std::string data("Hello, World!");
     41   std::vector<uint8> signature;
     42   ASSERT_TRUE(signer->Sign(reinterpret_cast<const uint8*>(data.c_str()),
     43                            data.size(),
     44                            &signature));
     45 
     46   std::vector<uint8> public_key_info;
     47   ASSERT_TRUE(key_original->ExportPublicKey(&public_key_info));
     48 
     49   // This is the algorithm ID for ECDSA with SHA-256. Parameters are ABSENT.
     50   // RFC 5758:
     51   //   ecdsa-with-SHA256 OBJECT IDENTIFIER ::= { iso(1) member-body(2)
     52   //        us(840) ansi-X9-62(10045) signatures(4) ecdsa-with-SHA2(3) 2 }
     53   //   ...
     54   //   When the ecdsa-with-SHA224, ecdsa-with-SHA256, ecdsa-with-SHA384, or
     55   //   ecdsa-with-SHA512 algorithm identifier appears in the algorithm field
     56   //   as an AlgorithmIdentifier, the encoding MUST omit the parameters
     57   //   field.  That is, the AlgorithmIdentifier SHALL be a SEQUENCE of one
     58   //   component, the OID ecdsa-with-SHA224, ecdsa-with-SHA256, ecdsa-with-
     59   //   SHA384, or ecdsa-with-SHA512.
     60   // See also RFC 5480, Appendix A.
     61   const uint8 kECDSAWithSHA256AlgorithmID[] = {
     62     0x30, 0x0a,
     63       0x06, 0x08,
     64         0x2a, 0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02,
     65   };
     66   crypto::SignatureVerifier verifier;
     67   ASSERT_TRUE(verifier.VerifyInit(
     68       kECDSAWithSHA256AlgorithmID, sizeof(kECDSAWithSHA256AlgorithmID),
     69       &signature[0], signature.size(),
     70       &public_key_info.front(), public_key_info.size()));
     71 
     72   verifier.VerifyUpdate(reinterpret_cast<const uint8*>(data.c_str()),
     73                         data.size());
     74   ASSERT_TRUE(verifier.VerifyFinal());
     75 }
     76