src/crypto/des/example_test.go


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package des_test

import "crypto/des"

func ExampleNewTripleDESCipher() {
	// NewTripleDESCipher can also be used when EDE2 is required by
	// duplicating the first 8 bytes of the 16-byte key.
	ede2Key := []byte("example key 1234")

	var tripleDESKey []byte
	tripleDESKey = append(tripleDESKey, ede2Key[:16]...)
	tripleDESKey = append(tripleDESKey, ede2Key[:8]...)

	_, err := des.NewTripleDESCipher(tripleDESKey)
	if err != nil {
		panic(err)
	}

	// See crypto/cipher for how to use a cipher.Block for encryption and
	// decryption.
}