135 lines
5.1 KiB
Go
135 lines
5.1 KiB
Go
package crypto
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import (
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"encoding/hex"
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"testing"
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"github.com/stretchr/testify/require"
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)
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func TestExtractSignatures(t *testing.T) {
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const content1 = "045a8cae84d8d139e887bb927d2b98cee481afae3770e0ee45f2dc19c6545e45921bc6a55ea92b705e45dfbbe47182c7b1d64a080a220d2781577163923d7cbb4b045a8cae84d8d139e887bb927d2b98cee481afae3770e0ee45f2dc19c6545e45921bc6a55ea92b705e45dfbbe47182c7b1d64a080a220d2781577163923d7cbb4b04ca82dd41fa592bf46ecf7e2eddae61013fc95a565b59c49f37f06b1b591ed3bd24e143495f2d1e241e151ab3572ac108d577be349d4b88d3d5a50c481ab35441"
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const content2 = "045a8cae84d8d139e887bb927d2b98cee481afae3770e0ee45f2dc19c6545e45921bc6a55ea92b705e45dfbbe47182c7b1d64a080a220d2781577163923d7cbb4b045a8cae84d8d139e887bb927d2b98cee481afae3770e0ee45f2dc19c6545e45921bc6a55ea92b705e45dfbbe47182c7b1d64a080a220d2781577163923d7cbb4b04ca82dd41fa592bf46ecf7e2eddae61013fc95a565b59c49f37f06b1b591ed3bd24e143495f2d1e241e151ab3572ac108d577be349d4b88d3d5a50c481ab35440"
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key1, err := GenerateKey()
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require.NoError(t, err)
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key2, err := GenerateKey()
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require.NoError(t, err)
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signature1, err := SignStringAsHex(content1, key1)
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require.NoError(t, err)
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signature2, err := SignStringAsHex(content2, key2)
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require.NoError(t, err)
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key1String := hex.EncodeToString(FromECDSAPub(&key1.PublicKey))
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key2String := hex.EncodeToString(FromECDSAPub(&key2.PublicKey))
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pair1 := [2]string{content1, signature1}
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pair2 := [2]string{content2, signature2}
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signaturePairs := [][2]string{pair1, pair2}
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extractedSignatures, err := ExtractSignatures(signaturePairs)
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require.NoError(t, err)
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require.Equal(t, []string{key1String, key2String}, extractedSignatures)
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// Test wrong content
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pair3 := [2]string{content1, signature2}
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signaturePairs = [][2]string{pair1, pair2, pair3}
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extractedSignatures, err = ExtractSignatures(signaturePairs)
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require.NoError(t, err)
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// The public key is neither the one which generated the content, nor the one generated the signature
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require.NotEqual(t, []string{key1String, key2String, key1String}, extractedSignatures)
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require.NotEqual(t, []string{key1String, key2String, key2String}, extractedSignatures)
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}
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func TestVerifySignature(t *testing.T) {
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const content1 = "045a8cae84d8d139e887bb927d2b98cee481afae3770e0ee45f2dc19c6545e45921bc6a55ea92b705e45dfbbe47182c7b1d64a080a220d2781577163923d7cbb4b045a8cae84d8d139e887bb927d2b98cee481afae3770e0ee45f2dc19c6545e45921bc6a55ea92b705e45dfbbe47182c7b1d64a080a220d2781577163923d7cbb4b04ca82dd41fa592bf46ecf7e2eddae61013fc95a565b59c49f37f06b1b591ed3bd24e143495f2d1e241e151ab3572ac108d577be349d4b88d3d5a50c481ab35441"
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const content2 = "045a8cae84d8d139e887bb927d2b98cee481afae3770e0ee45f2dc19c6545e45921bc6a55ea92b705e45dfbbe47182c7b1d64a080a220d2781577163923d7cbb4b045a8cae84d8d139e887bb927d2b98cee481afae3770e0ee45f2dc19c6545e45921bc6a55ea92b705e45dfbbe47182c7b1d64a080a220d2781577163923d7cbb4b04ca82dd41fa592bf46ecf7e2eddae61013fc95a565b59c49f37f06b1b591ed3bd24e143495f2d1e241e151ab3572ac108d577be349d4b88d3d5a50c481ab35440"
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key1, err := GenerateKey()
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require.NoError(t, err)
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key2, err := GenerateKey()
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require.NoError(t, err)
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signature1, err := SignStringAsHex(content1, key1)
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require.NoError(t, err)
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signature2, err := SignStringAsHex(content2, key2)
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require.NoError(t, err)
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key1String := hex.EncodeToString(FromECDSAPub(&key1.PublicKey))
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key2String := hex.EncodeToString(FromECDSAPub(&key2.PublicKey))
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pair1 := [3]string{content1, signature1, key1String}
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pair2 := [3]string{content2, signature2, key2String}
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signaturePairs := [][3]string{pair1, pair2}
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err = VerifySignatures(signaturePairs)
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require.NoError(t, err)
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// Test wrong content
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pair3 := [3]string{content1, signature2, key2String}
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signaturePairs = [][3]string{pair1, pair2, pair3}
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err = VerifySignatures(signaturePairs)
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require.Error(t, err)
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// Test wrong signature
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pair3 = [3]string{content1, signature2, key1String}
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signaturePairs = [][3]string{pair1, pair2, pair3}
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err = VerifySignatures(signaturePairs)
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require.Error(t, err)
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// Test wrong pubkey
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pair3 = [3]string{content1, signature1, key2String}
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signaturePairs = [][3]string{pair1, pair2, pair3}
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err = VerifySignatures(signaturePairs)
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require.Error(t, err)
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}
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func TestSymmetricEncryption(t *testing.T) {
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const rawKey = "0000000000000000000000000000000000000000000000000000000000000000"
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expectedPlaintext := []byte("test")
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key, err := hex.DecodeString(rawKey)
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require.Nil(t, err, "Key should be generated without errors")
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cyphertext1, err := EncryptSymmetric(key, expectedPlaintext)
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require.Nil(t, err, "Cyphertext should be generated without errors")
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cyphertext2, err := EncryptSymmetric(key, expectedPlaintext)
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require.Nil(t, err, "Cyphertext should be generated without errors")
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require.Equalf(
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t,
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32,
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len(cyphertext1),
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"Cyphertext with the correct length should be generated")
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require.NotEqualf(
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t,
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cyphertext1,
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cyphertext2,
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"Same plaintext should not be encrypted in the same way")
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plaintext, err := DecryptSymmetric(key, cyphertext1)
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require.Nil(t, err, "Cyphertext should be decrypted without errors")
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require.Equalf(
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t,
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expectedPlaintext,
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plaintext,
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"Cypther text should be decrypted successfully")
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}
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