1 // Copyright 2018 The CUE 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 // 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 // Copyright 2018 The Go Authors. All rights reserved. 16 // Use of this source code is governed by a BSD-style 17 // license that can be found in the LICENSE file. 18 19 package sha1 20 21 import "crypto/sha1" 22 23 // The size of a SHA-1 checksum in bytes. 24 const Size = 20 25 26 // The blocksize of SHA-1 in bytes. 27 const BlockSize = 64 28 29 // Sum returns the SHA-1 checksum of the data. 30 func Sum(data []byte) []byte { 31 a := sha1.Sum(data) 32 return a[:] 33 } 34