Remove the non-RFC 7539 variants of ChaCha20Poly1305 crypters in QUIC

net/quic/crypto/chacha20_poly1305_decrypter_nss.cc

-// 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 "net/quic/crypto/chacha20_poly1305_decrypter.h"
-
-#include <pk11pub.h>
-
-using base::StringPiece;
-
-namespace net {
-
-namespace {
-
-const size_t kKeySize = 32;
-const size_t kNoncePrefixSize = 0;
-
-}  // namespace
-
-ChaCha20Poly1305Decrypter::ChaCha20Poly1305Decrypter()
-    : AeadBaseDecrypter(CKM_NSS_CHACHA20_POLY1305,
-                        kKeySize,
-                        kAuthTagSize,
-                        kNoncePrefixSize) {
-  static_assert(kKeySize <= kMaxKeySize, "key size too big");
-  static_assert(kNoncePrefixSize <= kMaxNoncePrefixSize,
-                "nonce prefix size too big");
-}
-
-ChaCha20Poly1305Decrypter::~ChaCha20Poly1305Decrypter() {}
-
-void ChaCha20Poly1305Decrypter::FillAeadParams(StringPiece nonce,
-                                               StringPiece associated_data,
-                                               size_t auth_tag_size,
-                                               AeadParams* aead_params) const {
-  aead_params->len = sizeof(aead_params->data.nss_aead_params);
-  CK_NSS_AEAD_PARAMS* nss_aead_params = &aead_params->data.nss_aead_params;
-  nss_aead_params->pIv =
-      reinterpret_cast<CK_BYTE*>(const_cast<char*>(nonce.data()));
-  nss_aead_params->ulIvLen = nonce.size();
-  nss_aead_params->pAAD =
-      reinterpret_cast<CK_BYTE*>(const_cast<char*>(associated_data.data()));
-  nss_aead_params->ulAADLen = associated_data.size();
-  nss_aead_params->ulTagLen = auth_tag_size;
-}
-
-const char* ChaCha20Poly1305Decrypter::cipher_name() const {
-  // TODO(rtenneti): Use TLS1_TXT_ECDHE_RSA_WITH_CHACHA20_POLY1305 instead of
-  // hard coded string.
-  // return TLS1_TXT_ECDHE_RSA_WITH_CHACHA20_POLY1305;
-  return "ECDHE-RSA-CHACHA20-POLY1305";
-}
-
-uint32_t ChaCha20Poly1305Decrypter::cipher_id() const {
-  // TODO(rtenneti): when Chromium requires NSS 3.15.2 or later, use
-  // TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305 instead of 0xCC13.
-  // "OR" 0x03000000 to match OpenSSL/BoringSSL implementations.
-  return 0x03000000 | 0xCC13;
-}
-
-}  // namespace net