1 // Copyright © SAS Institute Inc. 2 // Licensed under the Apache License, Version 2.0 (the "License"); 3 // you may not use this file except in compliance with the License. 4 // You may obtain a copy of the License at 5 // 6 // http://www.apache.org/licenses/LICENSE-2.0 7 // 8 // Unless required by applicable law or agreed to in writing, software 9 // distributed under the License is distributed on an "AS IS" BASIS, 10 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 11 // See the License for the specific language governing permissions and 12 // limitations under the License. 13 14 package pkcs9 15 16 import ( 17 "context" 18 "crypto" 19 20 "github.com/sassoftware/relic/lib/pkcs7" 21 ) 22 23 // Timestamper is the common interface for the timestamp client and middleware 24 type Timestamper interface { 25 Timestamp(ctx context.Context, req *Request) (*pkcs7.ContentInfoSignedData, error) 26 } 27 28 // Request holds parameters for a timestamp operation 29 type Request struct { 30 // EncryptedDigest is the raw encrypted signature value 31 EncryptedDigest []byte 32 // Hash is the desired hash function for the timestamp. Ignored for legacy requests. 33 Hash crypto.Hash 34 // Legacy indicates a nonstandard microsoft timestamp request, otherwise RFC 3161 is used 35 Legacy bool 36 } 37