164 lines
3.9 KiB
Go
164 lines
3.9 KiB
Go
/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package blockcipher
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import (
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"bytes"
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_ "crypto/sha256"
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"io"
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"testing"
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)
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func TestBlockCipherAesSivCreateValid(t *testing.T) {
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_, err := NewAESSIVLayerBlockCipher(256)
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if err != nil {
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t.Fatal(err)
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}
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_, err = NewAESSIVLayerBlockCipher(512)
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if err != nil {
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t.Fatal(err)
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}
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}
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func TestBlockCipherAesSivCreateInvalid(t *testing.T) {
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_, err := NewAESSIVLayerBlockCipher(8)
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if err == nil {
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t.Fatal("Test should have failed due to invalid cipher size")
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}
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_, err = NewAESSIVLayerBlockCipher(255)
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if err == nil {
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t.Fatal("Test should have failed due to invalid cipher size")
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}
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}
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func TestBlockCipherAesSivEncryption(t *testing.T) {
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var (
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symKey = []byte("01234567890123456789012345678912")
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opt = LayerBlockCipherOptions{
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SymmetricKey: symKey,
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}
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layerData = []byte("this is some data")
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)
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bc, err := NewAESSIVLayerBlockCipher(256)
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if err != nil {
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t.Fatal(err)
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}
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layerDataReader := bytes.NewReader(layerData)
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ciphertextReader, lbco, err := bc.Encrypt(layerDataReader, opt)
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if err != nil {
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t.Fatal(err)
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}
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// Use a different instantiated object to indicate an invocation at a diff time
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bc2, err := NewAESSIVLayerBlockCipher(256)
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if err != nil {
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t.Fatal(err)
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}
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ciphertext := make([]byte, 1024)
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encsize, err := ciphertextReader.Read(ciphertext)
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if err != nil {
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t.Fatal(err)
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}
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ciphertextTestReader := bytes.NewReader(ciphertext[:encsize])
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plaintextReader, _, err := bc2.Decrypt(ciphertextTestReader, lbco)
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if err != nil {
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t.Fatal(err)
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}
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plaintext := make([]byte, 1024)
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size, err := plaintextReader.Read(plaintext)
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if err != nil && err != io.EOF {
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t.Fatal(err)
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}
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if string(plaintext[:size]) != string(layerData) {
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t.Fatalf("expected %q, got %q", layerData, plaintext[:size])
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}
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}
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func TestBlockCipherAesSivEncryptionInvalidKey(t *testing.T) {
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var (
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symKey = []byte("01234567890123456789012345678912")
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opt = LayerBlockCipherOptions{
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SymmetricKey: symKey,
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}
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layerData = []byte("this is some data")
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)
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bc, err := NewAESSIVLayerBlockCipher(256)
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if err != nil {
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t.Fatal(err)
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}
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layerDataReader := bytes.NewReader(layerData)
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ciphertextReader, lbco, err := bc.Encrypt(layerDataReader, opt)
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if err != nil {
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t.Fatal(err)
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}
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// Use a different instantiated object to indicate an invokation at a diff time
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bc2, err := NewAESSIVLayerBlockCipher(256)
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if err != nil {
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t.Fatal(err)
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}
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lbco.SymmetricKey = []byte("aaa34567890123456789012345678912")
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ciphertext := make([]byte, 1024)
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encsize, err := ciphertextReader.Read(ciphertext)
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if err != nil {
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t.Fatal(err)
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}
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ciphertextTestReader := bytes.NewReader(ciphertext[:encsize])
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plaintextReader, _, err := bc2.Decrypt(ciphertextTestReader, lbco)
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if err != nil {
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t.Fatal(err)
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}
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plaintext := make([]byte, 1024)
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_, err = plaintextReader.Read(plaintext)
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if err == nil {
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t.Fatal("Read() should have failed due to wrong key")
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}
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}
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func TestBlockCipherAesSivEncryptionInvalidKeyLength(t *testing.T) {
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var (
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symKey = []byte("012345")
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opt = LayerBlockCipherOptions{
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SymmetricKey: symKey,
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}
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layerData = []byte("this is some data")
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)
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bc, err := NewAESSIVLayerBlockCipher(256)
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if err != nil {
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t.Fatal(err)
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}
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layerDataReader := bytes.NewReader(layerData)
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_, _, err = bc.Encrypt(layerDataReader, opt)
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if err == nil {
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t.Fatal("Test should have failed due to invalid key length")
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}
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}
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