1// Copyright 2022 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// Package streamingprf provides implementations of streaming pseudorandom 18// function families. 19package streamingprf 20 21import ( 22 "io" 23) 24 25// StreamingPRF is the interface used to represent a streaming pseudorandom 26// function family for a specified key. 27// 28// It has the same properties as the PRF primitive. 29type StreamingPRF interface { 30 // Compute computes the PRF selected by the specified key on input and returns 31 // the result via a reader. 32 Compute(input []byte) (io.Reader, error) 33} 34