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| 1 // Copyright 2016 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 <keyhi.h> | |
| 6 #include <pk11pub.h> | |
| 7 #include <prerror.h> | |
| 8 | |
| 9 #include "base/logging.h" | |
| 10 #include "base/macros.h" | |
| 11 #include "base/memory/ptr_util.h" | |
| 12 #include "crypto/scoped_nss_types.h" | |
| 13 #include "net/cert/x509_certificate.h" | |
| 14 #include "net/ssl/client_key_store.h" | |
| 15 #include "net/ssl/ssl_platform_key.h" | |
| 16 #include "net/ssl/ssl_platform_key_util.h" | |
| 17 #include "net/ssl/ssl_private_key.h" | |
| 18 #include "net/ssl/threaded_ssl_private_key.h" | |
| 19 #include "third_party/boringssl/src/include/openssl/mem.h" | |
| 20 #include "third_party/boringssl/src/include/openssl/nid.h" | |
| 21 #include "third_party/boringssl/src/include/openssl/rsa.h" | |
| 22 | |
| 23 namespace net { | |
| 24 | |
| 25 namespace { | |
| 26 | |
| 27 void LogPRError() { | |
| 28 PRErrorCode err = PR_GetError(); | |
| 29 const char* err_name = PR_ErrorToName(err); | |
| 30 if (err_name == nullptr) | |
| 31 err_name = ""; | |
| 32 LOG(ERROR) << "Could not sign digest: " << err << " (" << err_name << ")"; | |
| 33 } | |
| 34 | |
| 35 class SSLPlatformKeyChromecast : public ThreadedSSLPrivateKey::Delegate { | |
| 36 public: | |
| 37 SSLPlatformKeyChromecast(crypto::ScopedSECKEYPrivateKey key) | |
| 38 : key_(std::move(key)) {} | |
| 39 ~SSLPlatformKeyChromecast() override {} | |
| 40 | |
| 41 std::vector<SSLPrivateKey::Hash> GetDigestPreferences() override { | |
| 42 return std::vector<SSLPrivateKey::Hash>{SSLPrivateKey::Hash::SHA256, | |
| 43 SSLPrivateKey::Hash::SHA1}; | |
| 44 } | |
| 45 | |
| 46 Error SignDigest(SSLPrivateKey::Hash hash, | |
| 47 const base::StringPiece& input, | |
| 48 std::vector<uint8_t>* signature) override { | |
| 49 SECItem digest_item; | |
| 50 digest_item.data = | |
| 51 const_cast<uint8_t*>(reinterpret_cast<const uint8_t*>(input.data())); | |
| 52 digest_item.len = input.size(); | |
| 53 | |
| 54 bssl::UniquePtr<uint8_t> free_digest_info; | |
| 55 // PK11_Sign expects the caller to prepend the DigestInfo. | |
| 56 int hash_nid = NID_undef; | |
| 57 switch (hash) { | |
| 58 case SSLPrivateKey::Hash::MD5_SHA1: | |
| 59 hash_nid = NID_md5_sha1; | |
| 60 break; | |
| 61 case SSLPrivateKey::Hash::SHA1: | |
| 62 hash_nid = NID_sha1; | |
| 63 break; | |
| 64 case SSLPrivateKey::Hash::SHA256: | |
| 65 hash_nid = NID_sha256; | |
| 66 break; | |
| 67 default: | |
| 68 return ERR_SSL_CLIENT_AUTH_SIGNATURE_FAILED; | |
| 69 } | |
| 70 DCHECK_NE(NID_undef, hash_nid); | |
| 71 int is_alloced; | |
| 72 size_t prefix_len; | |
| 73 if (!RSA_add_pkcs1_prefix(&digest_item.data, &prefix_len, &is_alloced, | |
| 74 hash_nid, digest_item.data, digest_item.len)) { | |
| 75 return ERR_SSL_CLIENT_AUTH_SIGNATURE_FAILED; | |
| 76 } | |
| 77 digest_item.len = prefix_len; | |
| 78 if (is_alloced) | |
| 79 free_digest_info.reset(digest_item.data); | |
| 80 | |
| 81 int len = PK11_SignatureLen(key_.get()); | |
| 82 if (len <= 0) { | |
| 83 LogPRError(); | |
| 84 return ERR_SSL_CLIENT_AUTH_SIGNATURE_FAILED; | |
| 85 } | |
| 86 signature->resize(len); | |
| 87 SECItem signature_item; | |
| 88 signature_item.data = signature->data(); | |
| 89 signature_item.len = signature->size(); | |
| 90 | |
| 91 SECStatus rv = PK11_Sign(key_.get(), &signature_item, &digest_item); | |
| 92 if (rv != SECSuccess) { | |
| 93 LogPRError(); | |
| 94 return ERR_SSL_CLIENT_AUTH_SIGNATURE_FAILED; | |
| 95 } | |
| 96 signature->resize(signature_item.len); | |
| 97 | |
| 98 return OK; | |
| 99 } | |
| 100 | |
| 101 private: | |
| 102 crypto::ScopedSECKEYPrivateKey key_; | |
| 103 | |
| 104 DISALLOW_COPY_AND_ASSIGN(SSLPlatformKeyChromecast); | |
| 105 }; | |
| 106 | |
| 107 } // namespace | |
| 108 | |
| 109 scoped_refptr<SSLPrivateKey> FetchClientCertPrivateKey( | |
| 110 const X509Certificate* certificate) { | |
| 111 crypto::ScopedSECKEYPrivateKey key( | |
| 112 PK11_FindKeyByAnyCert(certificate->os_cert_handle(), nullptr)); | |
| 113 if (!key) { | |
| 114 return ClientKeyStore::GetInstance()->FetchClientCertPrivateKey( | |
| 115 *certificate); | |
| 116 } | |
| 117 | |
| 118 return make_scoped_refptr(new ThreadedSSLPrivateKey( | |
| 119 base::MakeUnique<SSLPlatformKeyChromecast>(std::move(key)), | |
| 120 GetSSLPlatformKeyTaskRunner())); | |
| 121 } | |
| 122 | |
| 123 } // namespace net | |
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Chromium Code Reviews
Issue 2898573002:
Refactor client cert private key handling. (Closed)
