1 // Copyright 2016 The Chromium Authors 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 // https://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 #ifndef BSSL_DER_ENCODE_VALUES_H_ 16 #define BSSL_DER_ENCODE_VALUES_H_ 17 18 #include <stddef.h> 19 #include <stdint.h> 20 21 #include <openssl/base.h> 22 23 BSSL_NAMESPACE_BEGIN 24 namespace der { 25 26 struct GeneralizedTime; 27 28 // Encodes |posix_time|, a posix time in seconds, to DER |generalized_time|, for 29 // comparing against other GeneralizedTime objects, returning true on success or 30 // false if |posix_time| is outside of the range from year 0000 to 9999. 31 OPENSSL_EXPORT bool EncodePosixTimeAsGeneralizedTime( 32 int64_t posix_time, GeneralizedTime *generalized_time); 33 34 // Converts a GeneralizedTime struct to a posix time in seconds in |result|, 35 // returning true on success or false if |generalized| was invalid or cannot be 36 // represented as a posix time in the range from the year 0000 to 9999. 37 OPENSSL_EXPORT bool GeneralizedTimeToPosixTime( 38 const der::GeneralizedTime &generalized, int64_t *result); 39 40 static const size_t kGeneralizedTimeLength = 15; 41 42 // Encodes |time| to |out| as a DER GeneralizedTime value. Returns true on 43 // success and false on error. 44 OPENSSL_EXPORT bool EncodeGeneralizedTime(const GeneralizedTime &time, 45 uint8_t out[kGeneralizedTimeLength]); 46 47 static const size_t kUTCTimeLength = 13; 48 49 // Encodes |time| to |out| as a DER UTCTime value. Returns true on success and 50 // false on error. 51 OPENSSL_EXPORT bool EncodeUTCTime(const GeneralizedTime &time, 52 uint8_t out[kUTCTimeLength]); 53 54 } // namespace der 55 BSSL_NAMESPACE_END 56 57 #endif // BSSL_DER_ENCODE_VALUES_H_ 58