html_viewer: Move webcrypto to a place where html_viewer can use it.

content/child/webcrypto/nss/rsa_oaep_nss.cc

Index: content/child/webcrypto/nss/rsa_oaep_nss.cc
diff --git a/content/child/webcrypto/nss/rsa_oaep_nss.cc b/content/child/webcrypto/nss/rsa_oaep_nss.cc
deleted file mode 100644
index cd181563fff5aa97f7a6deb7a99f01ea650be674..0000000000000000000000000000000000000000
--- a/content/child/webcrypto/nss/rsa_oaep_nss.cc
+++ /dev/null
@@ -1,231 +0,0 @@
-// Copyright 2014 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 <cryptohi.h>
-#include <keyhi.h>
-#include <pk11pub.h>
-#include <secerr.h>
-#include <sechash.h>
-
-#include "base/stl_util.h"
-#include "content/child/webcrypto/crypto_data.h"
-#include "content/child/webcrypto/nss/key_nss.h"
-#include "content/child/webcrypto/nss/rsa_hashed_algorithm_nss.h"
-#include "content/child/webcrypto/nss/util_nss.h"
-#include "content/child/webcrypto/status.h"
-#include "content/child/webcrypto/webcrypto_util.h"
-#include "third_party/WebKit/public/platform/WebCryptoAlgorithmParams.h"
-#include "third_party/WebKit/public/platform/WebCryptoKeyAlgorithm.h"
-
-namespace content {
-
-namespace webcrypto {
-
-namespace {
-
-Status NssSupportsRsaOaep() {
-  if (NssRuntimeSupport::Get()->IsRsaOaepSupported())
-    return Status::Success();
-  return Status::ErrorUnsupported(
-      "NSS version doesn't support RSA-OAEP. Try using version 3.16.2 or "
-      "later");
-}
-
-CK_MECHANISM_TYPE WebCryptoHashToMGFMechanism(
-    const blink::WebCryptoAlgorithm& algorithm) {
-  switch (algorithm.id()) {
-    case blink::WebCryptoAlgorithmIdSha1:
-      return CKG_MGF1_SHA1;
-    case blink::WebCryptoAlgorithmIdSha256:
-      return CKG_MGF1_SHA256;
-    case blink::WebCryptoAlgorithmIdSha384:
-      return CKG_MGF1_SHA384;
-    case blink::WebCryptoAlgorithmIdSha512:
-      return CKG_MGF1_SHA512;
-    default:
-      return CKM_INVALID_MECHANISM;
-  }
-}
-
-CK_MECHANISM_TYPE WebCryptoHashToDigestMechanism(
-    const blink::WebCryptoAlgorithm& algorithm) {
-  switch (algorithm.id()) {
-    case blink::WebCryptoAlgorithmIdSha1:
-      return CKM_SHA_1;
-    case blink::WebCryptoAlgorithmIdSha256:
-      return CKM_SHA256;
-    case blink::WebCryptoAlgorithmIdSha384:
-      return CKM_SHA384;
-    case blink::WebCryptoAlgorithmIdSha512:
-      return CKM_SHA512;
-    default:
-      // Not a supported algorithm.
-      return CKM_INVALID_MECHANISM;
-  }
-}
-
-bool InitializeRsaOaepParams(const blink::WebCryptoAlgorithm& hash,
-                             const CryptoData& label,
-                             CK_RSA_PKCS_OAEP_PARAMS* oaep_params) {
-  oaep_params->source = CKZ_DATA_SPECIFIED;
-  oaep_params->pSourceData = const_cast<unsigned char*>(label.bytes());
-  oaep_params->ulSourceDataLen = label.byte_length();
-  oaep_params->mgf = WebCryptoHashToMGFMechanism(hash);
-  oaep_params->hashAlg = WebCryptoHashToDigestMechanism(hash);
-
-  if (oaep_params->mgf == CKM_INVALID_MECHANISM ||
-      oaep_params->hashAlg == CKM_INVALID_MECHANISM) {
-    return false;
-  }
-
-  return true;
-}
-
-Status EncryptRsaOaep(SECKEYPublicKey* key,
-                      const blink::WebCryptoAlgorithm& hash,
-                      const CryptoData& label,
-                      const CryptoData& data,
-                      std::vector<uint8_t>* buffer) {
-  CK_RSA_PKCS_OAEP_PARAMS oaep_params = {0};
-  if (!InitializeRsaOaepParams(hash, label, &oaep_params))
-    return Status::ErrorUnsupported();
-
-  SECItem param;
-  param.type = siBuffer;
-  param.data = reinterpret_cast<unsigned char*>(&oaep_params);
-  param.len = sizeof(oaep_params);
-
-  buffer->resize(SECKEY_PublicKeyStrength(key));
-  unsigned char* buffer_data = vector_as_array(buffer);
-  unsigned int output_len;
-  if (NssRuntimeSupport::Get()->pk11_pub_encrypt_func()(
-          key, CKM_RSA_PKCS_OAEP, &param, buffer_data, &output_len,
-          buffer->size(), data.bytes(), data.byte_length(),
-          NULL) != SECSuccess) {
-    return Status::OperationError();
-  }
-
-  CHECK_LE(output_len, buffer->size());
-  buffer->resize(output_len);
-  return Status::Success();
-}
-
-Status DecryptRsaOaep(SECKEYPrivateKey* key,
-                      const blink::WebCryptoAlgorithm& hash,
-                      const CryptoData& label,
-                      const CryptoData& data,
-                      std::vector<uint8_t>* buffer) {
-  Status status = NssSupportsRsaOaep();
-  if (status.IsError())
-    return status;
-
-  CK_RSA_PKCS_OAEP_PARAMS oaep_params = {0};
-  if (!InitializeRsaOaepParams(hash, label, &oaep_params))
-    return Status::ErrorUnsupported();
-
-  SECItem param;
-  param.type = siBuffer;
-  param.data = reinterpret_cast<unsigned char*>(&oaep_params);
-  param.len = sizeof(oaep_params);
-
-  const int modulus_length_bytes = PK11_GetPrivateModulusLen(key);
-  if (modulus_length_bytes <= 0)
-    return Status::ErrorUnexpected();
-
-  buffer->resize(modulus_length_bytes);
-
-  unsigned char* buffer_data = vector_as_array(buffer);
-  unsigned int output_len;
-  if (NssRuntimeSupport::Get()->pk11_priv_decrypt_func()(
-          key, CKM_RSA_PKCS_OAEP, &param, buffer_data, &output_len,
-          buffer->size(), data.bytes(), data.byte_length()) != SECSuccess) {
-    return Status::OperationError();
-  }
-
-  CHECK_LE(output_len, buffer->size());
-  buffer->resize(output_len);
-  return Status::Success();
-}
-
-class RsaOaepImplementation : public RsaHashedAlgorithm {
- public:
-  RsaOaepImplementation()
-      : RsaHashedAlgorithm(
-            CKF_ENCRYPT | CKF_DECRYPT | CKF_WRAP | CKF_UNWRAP,
-            blink::WebCryptoKeyUsageEncrypt | blink::WebCryptoKeyUsageWrapKey,
-            blink::WebCryptoKeyUsageDecrypt |
-                blink::WebCryptoKeyUsageUnwrapKey) {}
-
-  Status GenerateKey(const blink::WebCryptoAlgorithm& algorithm,
-                     bool extractable,
-                     blink::WebCryptoKeyUsageMask usages,
-                     GenerateKeyResult* result) const override {
-    Status status = NssSupportsRsaOaep();
-    if (status.IsError())
-      return status;
-    return RsaHashedAlgorithm::GenerateKey(algorithm, extractable, usages,
-                                           result);
-  }
-
-  Status VerifyKeyUsagesBeforeImportKey(
-      blink::WebCryptoKeyFormat format,
-      blink::WebCryptoKeyUsageMask usages) const override {
-    Status status = NssSupportsRsaOaep();
-    if (status.IsError())
-      return status;
-    return RsaHashedAlgorithm::VerifyKeyUsagesBeforeImportKey(format, usages);
-  }
-
-  const char* GetJwkAlgorithm(
-      const blink::WebCryptoAlgorithmId hash) const override {
-    switch (hash) {
-      case blink::WebCryptoAlgorithmIdSha1:
-        return "RSA-OAEP";
-      case blink::WebCryptoAlgorithmIdSha256:
-        return "RSA-OAEP-256";
-      case blink::WebCryptoAlgorithmIdSha384:
-        return "RSA-OAEP-384";
-      case blink::WebCryptoAlgorithmIdSha512:
-        return "RSA-OAEP-512";
-      default:
-        return NULL;
-    }
-  }
-
-  Status Encrypt(const blink::WebCryptoAlgorithm& algorithm,
-                 const blink::WebCryptoKey& key,
-                 const CryptoData& data,
-                 std::vector<uint8_t>* buffer) const override {
-    if (key.type() != blink::WebCryptoKeyTypePublic)
-      return Status::ErrorUnexpectedKeyType();
-
-    return EncryptRsaOaep(
-        PublicKeyNss::Cast(key)->key(),
-        key.algorithm().rsaHashedParams()->hash(),
-        CryptoData(algorithm.rsaOaepParams()->optionalLabel()), data, buffer);
-  }
-
-  Status Decrypt(const blink::WebCryptoAlgorithm& algorithm,
-                 const blink::WebCryptoKey& key,
-                 const CryptoData& data,
-                 std::vector<uint8_t>* buffer) const override {
-    if (key.type() != blink::WebCryptoKeyTypePrivate)
-      return Status::ErrorUnexpectedKeyType();
-
-    return DecryptRsaOaep(
-        PrivateKeyNss::Cast(key)->key(),
-        key.algorithm().rsaHashedParams()->hash(),
-        CryptoData(algorithm.rsaOaepParams()->optionalLabel()), data, buffer);
-  }
-};
-
-}  // namespace
-
-AlgorithmImplementation* CreatePlatformRsaOaepImplementation() {
-  return new RsaOaepImplementation;
-}
-
-}  // namespace webcrypto
-
-}  // namespace content