Reland "Cut down /crypto and switch what is left of it to boringssl".

crypto/signature_creator_openssl.cc

Index: crypto/signature_creator_openssl.cc
diff --git a/crypto/signature_creator_openssl.cc b/crypto/signature_creator_openssl.cc
deleted file mode 100644
index 0d90d50044da8de10c7af00f80bb2ccf65e4e548..0000000000000000000000000000000000000000
--- a/crypto/signature_creator_openssl.cc
+++ /dev/null
@@ -1,114 +0,0 @@
-// Copyright (c) 2012 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_creator.h"
-
-#include <openssl/evp.h>
-#include <openssl/rsa.h>
-
-#include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/stl_util.h"
-#include "crypto/openssl_util.h"
-#include "crypto/rsa_private_key.h"
-#include "crypto/scoped_openssl_types.h"
-
-namespace crypto {
-
-namespace {
-
-const EVP_MD* ToOpenSSLDigest(SignatureCreator::HashAlgorithm hash_alg) {
-  switch (hash_alg) {
-    case SignatureCreator::SHA1:
-      return EVP_sha1();
-    case SignatureCreator::SHA256:
-      return EVP_sha256();
-  }
-  return NULL;
-}
-
-int ToOpenSSLDigestType(SignatureCreator::HashAlgorithm hash_alg) {
-  switch (hash_alg) {
-    case SignatureCreator::SHA1:
-      return NID_sha1;
-    case SignatureCreator::SHA256:
-      return NID_sha256;
-  }
-  return NID_undef;
-}
-
-}  // namespace
-
-// static
-SignatureCreator* SignatureCreator::Create(RSAPrivateKey* key,
-                                           HashAlgorithm hash_alg) {
-  OpenSSLErrStackTracer err_tracer(FROM_HERE);
-  scoped_ptr<SignatureCreator> result(new SignatureCreator);
-  const EVP_MD* const digest = ToOpenSSLDigest(hash_alg);
-  DCHECK(digest);
-  if (!digest) {
-    return NULL;
-  }
-  if (!EVP_DigestSignInit(result->sign_context_, NULL, digest, NULL,
-                          key->key())) {
-    return NULL;
-  }
-  return result.release();
-}
-
-// static
-bool SignatureCreator::Sign(RSAPrivateKey* key,
-                            HashAlgorithm hash_alg,
-                            const uint8* data,
-                            int data_len,
-                            std::vector<uint8>* signature) {
-  ScopedRSA rsa_key(EVP_PKEY_get1_RSA(key->key()));
-  if (!rsa_key)
-    return false;
-  signature->resize(RSA_size(rsa_key.get()));
-
-  unsigned int len = 0;
-  if (!RSA_sign(ToOpenSSLDigestType(hash_alg), data, data_len,
-                vector_as_array(signature), &len, rsa_key.get())) {
-    signature->clear();
-    return false;
-  }
-  signature->resize(len);
-  return true;
-}
-
-SignatureCreator::SignatureCreator()
-    : sign_context_(EVP_MD_CTX_create()) {
-}
-
-SignatureCreator::~SignatureCreator() {
-  EVP_MD_CTX_destroy(sign_context_);
-}
-
-bool SignatureCreator::Update(const uint8* data_part, int data_part_len) {
-  OpenSSLErrStackTracer err_tracer(FROM_HERE);
-  return !!EVP_DigestSignUpdate(sign_context_, data_part, data_part_len);
-}
-
-bool SignatureCreator::Final(std::vector<uint8>* signature) {
-  OpenSSLErrStackTracer err_tracer(FROM_HERE);
-
-  // Determine the maximum length of the signature.
-  size_t len = 0;
-  if (!EVP_DigestSignFinal(sign_context_, NULL, &len)) {
-    signature->clear();
-    return false;
-  }
-  signature->resize(len);
-
-  // Sign it.
-  if (!EVP_DigestSignFinal(sign_context_, vector_as_array(signature), &len)) {
-    signature->clear();
-    return false;
-  }
-  signature->resize(len);
-  return true;
-}
-
-}  // namespace crypto