crypto: remove unused Mac SignatureVerifier.

crypto/signature_verifier_win.cc

Index: crypto/signature_verifier_win.cc
diff --git a/crypto/signature_verifier_win.cc b/crypto/signature_verifier_win.cc
deleted file mode 100644
index dfb17a49955ab9127691b10e05482be626bb02d3..0000000000000000000000000000000000000000
--- a/crypto/signature_verifier_win.cc
+++ /dev/null
@@ -1,121 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "crypto/signature_verifier.h"
-
-#include "base/logging.h"
-#include "crypto/capi_util.h"
-
-#pragma comment(lib, "crypt32.lib")
-
-namespace crypto {
-
-SignatureVerifier::SignatureVerifier() : hash_object_(0), public_key_(0) {
-  if (!CryptAcquireContext(provider_.receive(), NULL, NULL,
-                           PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
-    provider_.reset();
-}
-
-SignatureVerifier::~SignatureVerifier() {
-}
-
-bool SignatureVerifier::VerifyInit(const uint8* signature_algorithm,
-                                   int signature_algorithm_len,
-                                   const uint8* signature,
-                                   int signature_len,
-                                   const uint8* public_key_info,
-                                   int public_key_info_len) {
-  signature_.reserve(signature_len);
-  // CryptoAPI uses big integers in the little-endian byte order, so we need
-  // to first swap the order of signature bytes.
-  for (int i = signature_len - 1; i >= 0; --i)
-    signature_.push_back(signature[i]);
-
-  CRYPT_DECODE_PARA decode_para;
-  decode_para.cbSize = sizeof(decode_para);
-  decode_para.pfnAlloc = crypto::CryptAlloc;
-  decode_para.pfnFree = crypto::CryptFree;
-  CERT_PUBLIC_KEY_INFO* cert_public_key_info = NULL;
-  DWORD struct_len = 0;
-  BOOL ok;
-  ok = CryptDecodeObjectEx(X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
-                           X509_PUBLIC_KEY_INFO,
-                           public_key_info,
-                           public_key_info_len,
-                           CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG,
-                           &decode_para,
-                           &cert_public_key_info,
-                           &struct_len);
-  if (!ok)
-    return false;
-
-  ok = CryptImportPublicKeyInfo(provider_,
-                                X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
-                                cert_public_key_info, public_key_.receive());
-  crypto::CryptFree(cert_public_key_info);
-  if (!ok)
-    return false;
-
-  CRYPT_ALGORITHM_IDENTIFIER* signature_algorithm_id;
-  struct_len = 0;
-  ok = CryptDecodeObjectEx(X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
-                           X509_ALGORITHM_IDENTIFIER,
-                           signature_algorithm,
-                           signature_algorithm_len,
-                           CRYPT_DECODE_ALLOC_FLAG | CRYPT_DECODE_NOCOPY_FLAG,
-                           &decode_para,
-                           &signature_algorithm_id,
-                           &struct_len);
-  DCHECK(ok || GetLastError() == ERROR_FILE_NOT_FOUND);
-  ALG_ID hash_alg_id;
-  if (ok) {
-    hash_alg_id = CALG_MD4;  // Initialize to a weak hash algorithm that we
-                             // don't support.
-    if (!strcmp(signature_algorithm_id->pszObjId, szOID_RSA_SHA1RSA))
-      hash_alg_id = CALG_SHA1;
-    else if (!strcmp(signature_algorithm_id->pszObjId, szOID_RSA_MD5RSA))
-      hash_alg_id = CALG_MD5;
-    crypto::CryptFree(signature_algorithm_id);
-    DCHECK_NE(static_cast<ALG_ID>(CALG_MD4), hash_alg_id);
-    if (hash_alg_id == CALG_MD4)
-      return false;  // Unsupported hash algorithm.
-  } else if (GetLastError() == ERROR_FILE_NOT_FOUND) {
-    // TODO(wtc): X509_ALGORITHM_IDENTIFIER isn't supported on XP SP2.  We
-    // may be able to encapsulate signature_algorithm in a dummy SignedContent
-    // and decode it with X509_CERT into a CERT_SIGNED_CONTENT_INFO.  For now,
-    // just hardcode the hash algorithm to be SHA-1.
-    hash_alg_id = CALG_SHA1;
-  } else {
-    return false;
-  }
-
-  ok = CryptCreateHash(provider_, hash_alg_id, 0, 0, hash_object_.receive());
-  if (!ok)
-    return false;
-  return true;
-}
-
-void SignatureVerifier::VerifyUpdate(const uint8* data_part,
-                                     int data_part_len) {
-  BOOL ok = CryptHashData(hash_object_, data_part, data_part_len, 0);
-  DCHECK(ok) << "CryptHashData failed: " << GetLastError();
-}
-
-bool SignatureVerifier::VerifyFinal() {
-  BOOL ok = CryptVerifySignature(hash_object_, &signature_[0],
-                                 signature_.size(), public_key_, NULL, 0);
-  Reset();
-  if (!ok)
-    return false;
-  return true;
-}
-
-void SignatureVerifier::Reset() {
-  hash_object_.reset();
-  public_key_.reset();
-  signature_.clear();
-}
-
-}  // namespace crypto
-