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