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35 lines
1.3 KiB
Go
35 lines
1.3 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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"testing"
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)
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func TestThatPBKDFWorksCorrectlyForLongKeys(t *testing.T) {
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cipherInfo := shaWithTripleDESCBC{}
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salt := []byte("\xff\xff\xff\xff\xff\xff\xff\xff")
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password, _ := bmpString("sesame")
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key := cipherInfo.deriveKey(salt, password, 2048)
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if expected := []byte("\x7c\xd9\xfd\x3e\x2b\x3b\xe7\x69\x1a\x44\xe3\xbe\xf0\xf9\xea\x0f\xb9\xb8\x97\xd4\xe3\x25\xd9\xd1"); bytes.Compare(key, expected) != 0 {
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t.Fatalf("expected key '%x', but found '%x'", expected, key)
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}
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}
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func TestThatPBKDFHandlesLeadingZeros(t *testing.T) {
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// This test triggers a case where I_j (in step 6C) ends up with leading zero
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// byte, meaning that len(Ijb) < v (leading zeros get stripped by big.Int).
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// This was previously causing bug whereby certain inputs would break the
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// derivation and produce the wrong output.
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key := pbkdf(sha1Sum, 20, 64, []byte("\xf3\x7e\x05\xb5\x18\x32\x4b\x4b"), []byte("\x00\x00"), 2048, 1, 24)
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expected := []byte("\x00\xf7\x59\xff\x47\xd1\x4d\xd0\x36\x65\xd5\x94\x3c\xb3\xc4\xa3\x9a\x25\x55\xc0\x2a\xed\x66\xe1")
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if bytes.Compare(key, expected) != 0 {
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t.Fatalf("expected key '%x', but found '%x'", expected, key)
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}
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}
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