1 // Copyright 2019 Google LLC 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 // 15 /////////////////////////////////////////////////////////////////////////////// 16 17 #include "tink/subtle/subtle_util.h" 18 19 #include <string> 20 // placeholder_subtle_util_cc 21 22 namespace crypto { 23 namespace tink { 24 namespace subtle { 25 BigEndian32(uint32_t val)26std::string BigEndian32(uint32_t val) { 27 std::string result(4, '\0'); 28 result[0] = (val >> 24) & 0xff; 29 result[1] = (val >> 16) & 0xff; 30 result[2] = (val >> 8) & 0xff; 31 result[3] = val & 0xff; 32 return result; 33 } 34 ResizeStringUninitialized(std::string * s,size_t new_size)35void ResizeStringUninitialized(std::string* s, size_t new_size) { 36 s->resize(new_size); 37 } 38 39 40 } // namespace subtle 41 } // namespace tink 42 } // namespace crypto 43