go.charczuk.com@v0.0.0-20240327042549-bc490516bd1a/sdk/consistenthash/stable_hash.go (about) 1 /* 2 3 Copyright (c) 2023 - Present. Will Charczuk. All rights reserved. 4 Use of this source code is governed by a MIT license that can be found in the LICENSE file at the root of the repository. 5 6 */ 7 8 package consistenthash 9 10 import ( 11 "crypto/md5" 12 "encoding/binary" 13 ) 14 15 // HashFunction is a function that can be used to hash items. 16 type HashFunction func([]byte) uint64 17 18 // StableHash implements the default hash function with 19 // a stable crc64 table checksum. 20 func StableHash(data []byte) uint64 { 21 hash := md5.Sum(data) 22 return binary.BigEndian.Uint64(hash[8:]) 23 }