mirror of
https://github.com/restic/restic.git
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126 lines
3.1 KiB
Go
126 lines
3.1 KiB
Go
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// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package pkcs12
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import (
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"bytes"
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"crypto/x509/pkix"
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"encoding/asn1"
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"testing"
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)
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var sha1WithTripleDES = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 12, 1, 3})
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func TestPbDecrypterFor(t *testing.T) {
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params, _ := asn1.Marshal(pbeParams{
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Salt: []byte{1, 2, 3, 4, 5, 6, 7, 8},
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Iterations: 2048,
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})
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alg := pkix.AlgorithmIdentifier{
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Algorithm: asn1.ObjectIdentifier([]int{1, 2, 3}),
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Parameters: asn1.RawValue{
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FullBytes: params,
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},
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}
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pass, _ := bmpString("Sesame open")
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_, _, err := pbDecrypterFor(alg, pass)
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if _, ok := err.(NotImplementedError); !ok {
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t.Errorf("expected not implemented error, got: %T %s", err, err)
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}
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alg.Algorithm = sha1WithTripleDES
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cbc, blockSize, err := pbDecrypterFor(alg, pass)
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if err != nil {
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t.Errorf("unexpected error from pbDecrypterFor %v", err)
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}
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if blockSize != 8 {
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t.Errorf("unexpected block size %d, wanted 8", blockSize)
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}
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plaintext := []byte{1, 2, 3, 4, 5, 6, 7, 8}
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expectedCiphertext := []byte{185, 73, 135, 249, 137, 1, 122, 247}
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ciphertext := make([]byte, len(plaintext))
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cbc.CryptBlocks(ciphertext, plaintext)
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if bytes.Compare(ciphertext, expectedCiphertext) != 0 {
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t.Errorf("bad ciphertext, got %x but wanted %x", ciphertext, expectedCiphertext)
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}
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}
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var pbDecryptTests = []struct {
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in []byte
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expected []byte
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expectedError error
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}{
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{
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[]byte("\x33\x73\xf3\x9f\xda\x49\xae\xfc\xa0\x9a\xdf\x5a\x58\xa0\xea\x46"), // 7 padding bytes
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[]byte("A secret!"),
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nil,
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},
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{
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[]byte("\x33\x73\xf3\x9f\xda\x49\xae\xfc\x96\x24\x2f\x71\x7e\x32\x3f\xe7"), // 8 padding bytes
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[]byte("A secret"),
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nil,
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},
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{
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[]byte("\x35\x0c\xc0\x8d\xab\xa9\x5d\x30\x7f\x9a\xec\x6a\xd8\x9b\x9c\xd9"), // 9 padding bytes, incorrect
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nil,
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ErrDecryption,
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},
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{
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[]byte("\xb2\xf9\x6e\x06\x60\xae\x20\xcf\x08\xa0\x7b\xd9\x6b\x20\xef\x41"), // incorrect padding bytes: [ ... 0x04 0x02 ]
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nil,
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ErrDecryption,
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},
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}
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func TestPbDecrypt(t *testing.T) {
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for i, test := range pbDecryptTests {
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decryptable := testDecryptable{
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data: test.in,
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algorithm: pkix.AlgorithmIdentifier{
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Algorithm: sha1WithTripleDES,
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Parameters: pbeParams{
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Salt: []byte("\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8"),
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Iterations: 4096,
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}.RawASN1(),
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},
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}
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password, _ := bmpString("sesame")
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plaintext, err := pbDecrypt(decryptable, password)
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if err != test.expectedError {
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t.Errorf("#%d: got error %q, but wanted %q", i, err, test.expectedError)
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continue
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}
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if !bytes.Equal(plaintext, test.expected) {
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t.Errorf("#%d: got %x, but wanted %x", i, plaintext, test.expected)
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}
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}
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}
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type testDecryptable struct {
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data []byte
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algorithm pkix.AlgorithmIdentifier
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}
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func (d testDecryptable) Algorithm() pkix.AlgorithmIdentifier { return d.algorithm }
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func (d testDecryptable) Data() []byte { return d.data }
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func (params pbeParams) RawASN1() (raw asn1.RawValue) {
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asn1Bytes, err := asn1.Marshal(params)
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if err != nil {
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panic(err)
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}
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_, err = asn1.Unmarshal(asn1Bytes, &raw)
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if err != nil {
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panic(err)
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}
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return
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}
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