blake2b

A dart implement of blake2b referenced from blacknet and it's source code.

Getting Started

///
/// CASE 1
///

// what we expect
// bip = mean fury common entire zoo cash fragile dilemma retire appear insect park
// hash = A064E3C0E7D606F7EE717718FD23B943328ACD8CC20DE29B4053FC1C9D3888F6
// bytes = -96 100 -29 -64 -25 -42 6 -9 -18 113 119 24 -3 35 -71 67 50 -118 -51 -116 -62 13 -30 -101 64 83 -4 28 -99 56 -120 -10

Int8List expect = Int8List.fromList([-96,100,-29,-64,-25,-42,6,-9,-18,113,119,24,-3,35,-71,67,50,-118,-51,-116,-62,13,-30,-101,64,83,-4,28,-99,56,-120,-10]);
Uint8List uexpect = Utils.int8list2uint8list(expect);

var bip = "mean fury common entire zoo cash fragile dilemma retire appear insect park";
var upperCaseHash = "A064E3C0E7D606F7EE717718FD23B943328ACD8CC20DE29B4053FC1C9D3888F6";

Int8List message = Int8List(bip.length);
for (int i = 0; i < bip.length; i++) {
    message[i] = bip.codeUnitAt(i);
}

// hash from bytes to bytes
var umessage = Utils.int8list2uint8list(message);

var bytes = Blake2bHash.hash(umessage, 0, umessage.length);
assert(_uint8ListEqual(bytes, uexpect));

// hash from hex string to hex string
var lowerCaseHash = Blake2bHash.hashHexString2HexString(HEX.encode(message));
assert(lowerCaseHash == upperCaseHash.toLowerCase());

// hash from utf8 string to hex string
lowerCaseHash = Blake2bHash.hashUtf8String2HexString(bip);
assert(lowerCaseHash == upperCaseHash.toLowerCase());


///
/// CASE 2
///

// another test
// hexString = 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000eea2f40ef9c40caffc91d82c3332456039d9562290fe0957bad9ca7bc8e9159900000014d7338a9fc7b42de9c2045635a2bf2ec628f47adec76f8ee6caaa5397025b74e400000000000186a000ae0000000000989680a54407d81a2e4d5c72b8d784a56f88736c64bdf90883c12b6ffff6ec892b2b0c00846d656d6f
// hash = ff773f774a4489c98429d37ba1e8c91ce0ac26af27cd32c1b6ef17843e87eb39
var hexString = "00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000eea2f40ef9c40caffc91d82c3332456039d9562290fe0957bad9ca7bc8e9159900000014d7338a9fc7b42de9c2045635a2bf2ec628f47adec76f8ee6caaa5397025b74e400000000000186a000ae0000000000989680a54407d81a2e4d5c72b8d784a56f88736c64bdf90883c12b6ffff6ec892b2b0c00846d656d6f";
var messageBytes = Utils.int8list2uint8list(Int8List.fromList(HEX.decode(hexString)));
var hash = Blake2bHash.hash(messageBytes, 64, messageBytes.length - 64);
var expectedHash = Utils.int8list2uint8list(Int8List.fromList(HEX.decode("ff773f774a4489c98429d37ba1e8c91ce0ac26af27cd32c1b6ef17843e87eb39")));
assert(_uint8ListEqual(hash, expectedHash));

Libraries

blake2b
Copyright (c) 2019 riclava blake2b is licensed under the Mulan PSL v1. You can use this software according to the terms and conditions of the Mulan PSL v1. You may obtain a copy of Mulan PSL v1 at: http://license.coscl.org.cn/MulanPSL THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE. See the Mulan PSL v1 for more details.
blake2b_hash
byte_utils
const
ushr
utils