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classify_and_decrypt_test.go
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classify_and_decrypt_test.go
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// Copyright 2017 Keybase, Inc. All rights reserved. Use of
// this source code is governed by the included BSD license.
package saltpack
import (
"bufio"
"bytes"
"io"
"strings"
"testing"
"github.com/stretchr/testify/require"
)
func TestIsSaltpackBinarySlice(t *testing.T) {
// Signcryption
msg := []byte("hello world")
keyring, receiverBoxKeys := makeKeyringWithOneKey(t)
senderSigningPrivKey := makeSigningKey(t, keyring)
sealed, err := SigncryptSeal(msg, ephemeralKeyCreator{}, senderSigningPrivKey, receiverBoxKeys, nil)
require.NoError(t, err)
typ, ver, err := IsSaltpackBinarySlice(sealed)
require.NoError(t, err)
require.Equal(t, MessageTypeSigncryption, typ)
require.Equal(t, Version2(), ver)
// Encryption
sender := boxSecretKey{
key: RawBoxKey{0x08},
}
receivers := []BoxPublicKey{boxPublicKey{key: RawBoxKey{0x1}}}
ciphertext, err := Seal(Version2(), msg, sender, receivers)
require.NoError(t, err)
typ, ver, err = IsSaltpackBinarySlice(ciphertext)
require.NoError(t, err)
require.Equal(t, MessageTypeEncryption, typ)
require.Equal(t, Version2(), ver)
// Attached Sig
key := newSigPrivKey(t)
asig, err := Sign(Version2(), msg, key)
require.NoError(t, err)
typ, ver, err = IsSaltpackBinarySlice(asig)
require.NoError(t, err)
require.Equal(t, MessageTypeAttachedSignature, typ)
require.Equal(t, Version2(), ver)
// Detached Sig
dsig, err := SignDetached(Version2(), msg, key)
require.NoError(t, err)
typ, ver, err = IsSaltpackBinarySlice(dsig)
require.NoError(t, err)
require.Equal(t, MessageTypeDetachedSignature, typ)
require.Equal(t, Version2(), ver)
// short message
typ, ver, err = IsSaltpackBinarySlice(dsig[0:5])
require.Equal(t, err, ErrShortSliceOrBuffer)
require.Equal(t, MessageTypeUnknown, typ)
require.Equal(t, Version{}, ver)
// invalid messages
invalid := append([]byte{}, dsig...)
invalid[0] = 0xff
typ, ver, err = IsSaltpackBinarySlice(invalid)
require.Equal(t, ErrNotASaltpackMessage, err)
require.Equal(t, MessageTypeUnknown, typ)
require.Equal(t, Version{}, ver)
}
func TestIsSaltpackBinary(t *testing.T) {
// Signcryption
msg := []byte("hello world")
keyring, receiverBoxKeys := makeKeyringWithOneKey(t)
senderSigningPrivKey := makeSigningKey(t, keyring)
sealed, err := SigncryptSeal(msg, ephemeralKeyCreator{}, senderSigningPrivKey, receiverBoxKeys, nil)
require.NoError(t, err)
typ, ver, err := IsSaltpackBinary(bufio.NewReader(bytes.NewReader(sealed)))
require.NoError(t, err)
require.Equal(t, MessageTypeSigncryption, typ)
require.Equal(t, Version2(), ver)
// Encryption
sender := boxSecretKey{
key: RawBoxKey{0x08},
}
receivers := []BoxPublicKey{boxPublicKey{key: RawBoxKey{0x1}}}
ciphertext, err := Seal(Version2(), msg, sender, receivers)
require.NoError(t, err)
typ, ver, err = IsSaltpackBinary(bufio.NewReader(bytes.NewReader(ciphertext)))
require.NoError(t, err)
require.Equal(t, MessageTypeEncryption, typ)
require.Equal(t, Version2(), ver)
// Attached Sig
key := newSigPrivKey(t)
asig, err := Sign(Version2(), msg, key)
require.NoError(t, err)
typ, ver, err = IsSaltpackBinary(bufio.NewReader(bytes.NewReader(asig)))
require.NoError(t, err)
require.Equal(t, MessageTypeAttachedSignature, typ)
require.Equal(t, Version2(), ver)
// Detached Sig
dsig, err := SignDetached(Version2(), msg, key)
require.NoError(t, err)
typ, ver, err = IsSaltpackBinary(bufio.NewReader(bytes.NewReader(dsig)))
require.NoError(t, err)
require.Equal(t, MessageTypeDetachedSignature, typ)
require.Equal(t, Version2(), ver)
// short message
typ, ver, err = IsSaltpackBinary(bufio.NewReaderSize(bytes.NewReader(dsig), 5))
require.Equal(t, ErrShortSliceOrBuffer, err)
require.Equal(t, MessageTypeUnknown, typ)
require.Equal(t, Version{}, ver)
// invalid messages
invalid := append([]byte{}, dsig...)
invalid[0] = 0xff
typ, ver, err = IsSaltpackBinary(bufio.NewReader(bytes.NewReader(invalid)))
require.Equal(t, ErrNotASaltpackMessage, err)
require.Equal(t, MessageTypeUnknown, typ)
require.Equal(t, Version{}, ver)
}
func TestIsSaltpackArmored(t *testing.T) {
// Signcryption
msg := []byte("hello world")
keyring, receiverBoxKeys := makeKeyringWithOneKey(t)
senderSigningPrivKey := makeSigningKey(t, keyring)
sealedStr, err := SigncryptArmor62Seal(msg, ephemeralKeyCreator{}, senderSigningPrivKey, receiverBoxKeys, nil, ourBrand)
require.NoError(t, err)
brand, typ, ver, err := IsSaltpackArmored(bufio.NewReader(bytes.NewReader([]byte(sealedStr))))
require.NoError(t, err)
require.Equal(t, ourBrand, brand)
require.Equal(t, MessageTypeSigncryption, typ)
require.Equal(t, Version2(), ver)
// Encryption
sender := boxSecretKey{
key: RawBoxKey{0x08},
}
receivers := []BoxPublicKey{boxPublicKey{key: RawBoxKey{0x1}}}
ciphertextStr, err := EncryptArmor62Seal(Version2(), msg, sender, receivers, ourBrand)
require.NoError(t, err)
brand, typ, ver, err = IsSaltpackArmored(bufio.NewReader(bytes.NewReader([]byte(ciphertextStr))))
require.NoError(t, err)
require.Equal(t, ourBrand, brand)
require.Equal(t, MessageTypeEncryption, typ)
require.Equal(t, Version2(), ver)
// Attached Sig
key := newSigPrivKey(t)
asigStr, err := SignArmor62(Version2(), msg, key, ourBrand)
require.NoError(t, err)
brand, typ, ver, err = IsSaltpackArmored(bufio.NewReader(strings.NewReader(asigStr)))
require.NoError(t, err)
require.Equal(t, ourBrand, brand)
require.Equal(t, MessageTypeAttachedSignature, typ)
require.Equal(t, Version2(), ver)
// Detached Sig
dsigStr, err := SignDetachedArmor62(Version2(), msg, key, ourBrand)
require.NoError(t, err)
brand, typ, ver, err = IsSaltpackArmored(bufio.NewReader(strings.NewReader(dsigStr)))
require.NoError(t, err)
require.Equal(t, ourBrand, brand)
require.Equal(t, MessageTypeDetachedSignature, typ)
require.Equal(t, Version2(), ver)
// short message
brand, typ, ver, err = IsSaltpackArmored(bufio.NewReaderSize(strings.NewReader(dsigStr), 5))
require.Equal(t, ErrShortSliceOrBuffer, err)
require.Equal(t, "", brand)
require.Equal(t, MessageTypeUnknown, typ)
require.Equal(t, Version{}, ver)
// invalid messages
invalid := append([]byte{}, []byte(dsigStr)...)
invalid[0] = 0xff
brand, typ, ver, err = IsSaltpackArmored(bufio.NewReader(bytes.NewReader(invalid)))
require.Equal(t, err, ErrNotASaltpackMessage)
require.Equal(t, "", brand)
require.Equal(t, MessageTypeUnknown, typ)
require.Equal(t, Version{}, ver)
}
func TestIsSaltpackArmoredShortArmor(t *testing.T) {
// Signcryption
msg := []byte("hello world hello world hello world hello world hello world hello world hello world")
keyring, receiverBoxKeys := makeKeyringWithOneKey(t)
senderSigningPrivKey := makeSigningKey(t, keyring)
sealedStr, err := SigncryptArmor62Seal(msg, ephemeralKeyCreator{}, senderSigningPrivKey, receiverBoxKeys, nil, ourBrand)
require.NoError(t, err)
// The number 83 directly depends on the length of the header frame, the number of spaces, and the base62 block length
// for this specific message.
for i := 0; i < 83; i++ {
_, _, _, err := IsSaltpackArmoredPrefix(sealedStr[:i])
require.Equalf(t, ErrShortSliceOrBuffer, err, "Expected ErrShortSliceOrBuffer for i=%v, instead got: %T, %v", i, err, err)
}
for i := 84; i < len(sealedStr); i++ {
_, _, _, err := IsSaltpackArmoredPrefix(sealedStr[:i])
require.NoErrorf(t, err, "Unexpected error for i = %v: %T, %v", i, err, err)
}
}
func TestClassifyStream(t *testing.T) {
// Signcryption
msg := []byte("hello world")
keyring, receiverBoxKeys := makeKeyringWithOneKey(t)
senderSigningPrivKey := makeSigningKey(t, keyring)
sealed, err := SigncryptSeal(msg, ephemeralKeyCreator{}, senderSigningPrivKey, receiverBoxKeys, nil)
require.NoError(t, err)
armored, brand, typ, ver, err := ClassifyStream(bufio.NewReader(bytes.NewReader(sealed)))
require.NoError(t, err)
require.False(t, armored)
require.Equal(t, "", brand)
require.Equal(t, MessageTypeSigncryption, typ)
require.Equal(t, Version2(), ver)
sealedStr, err := SigncryptArmor62Seal(msg, ephemeralKeyCreator{}, senderSigningPrivKey, receiverBoxKeys, nil, ourBrand)
require.NoError(t, err)
armored, brand, typ, ver, err = ClassifyStream(bufio.NewReader(bytes.NewReader([]byte(sealedStr))))
require.NoError(t, err)
require.True(t, armored)
require.Equal(t, ourBrand, brand)
require.Equal(t, MessageTypeSigncryption, typ)
require.Equal(t, Version2(), ver)
// Encryption
sender := boxSecretKey{
key: RawBoxKey{0x08},
}
receivers := []BoxPublicKey{boxPublicKey{key: RawBoxKey{0x1}}}
ciphertext, err := Seal(Version2(), msg, sender, receivers)
require.NoError(t, err)
armored, brand, typ, ver, err = ClassifyStream(bufio.NewReader(bytes.NewReader(ciphertext)))
require.NoError(t, err)
require.False(t, armored)
require.Equal(t, "", brand)
require.Equal(t, MessageTypeEncryption, typ)
require.Equal(t, Version2(), ver)
ciphertextStr, err := EncryptArmor62Seal(Version2(), msg, sender, receivers, ourBrand)
require.NoError(t, err)
armored, brand, typ, ver, err = ClassifyStream(bufio.NewReader(bytes.NewReader([]byte(ciphertextStr))))
require.NoError(t, err)
require.True(t, armored)
require.Equal(t, ourBrand, brand)
require.Equal(t, MessageTypeEncryption, typ)
require.Equal(t, Version2(), ver)
// Attached Sig
key := newSigPrivKey(t)
asig, err := Sign(Version2(), msg, key)
require.NoError(t, err)
armored, brand, typ, ver, err = ClassifyStream(bufio.NewReader(bytes.NewReader(asig)))
require.NoError(t, err)
require.False(t, armored)
require.Equal(t, "", brand)
require.Equal(t, MessageTypeAttachedSignature, typ)
require.Equal(t, Version2(), ver)
asigStr, err := SignArmor62(Version2(), msg, key, ourBrand)
require.NoError(t, err)
armored, brand, typ, ver, err = ClassifyStream(bufio.NewReader(strings.NewReader(asigStr)))
require.NoError(t, err)
require.True(t, armored)
require.Equal(t, ourBrand, brand)
require.Equal(t, MessageTypeAttachedSignature, typ)
require.Equal(t, Version2(), ver)
// Detached Sig
dsig, err := SignDetached(Version2(), msg, key)
require.NoError(t, err)
armored, brand, typ, ver, err = ClassifyStream(bufio.NewReader(bytes.NewReader(dsig)))
require.NoError(t, err)
require.False(t, armored)
require.Equal(t, "", brand)
require.Equal(t, MessageTypeDetachedSignature, typ)
require.Equal(t, Version2(), ver)
dsigStr, err := SignDetachedArmor62(Version2(), msg, key, ourBrand)
require.NoError(t, err)
armored, brand, typ, ver, err = ClassifyStream(bufio.NewReader(strings.NewReader(dsigStr)))
require.NoError(t, err)
require.True(t, armored)
require.Equal(t, ourBrand, brand)
require.Equal(t, MessageTypeDetachedSignature, typ)
require.Equal(t, Version2(), ver)
// short message
armored, brand, typ, ver, err = ClassifyStream(bufio.NewReaderSize(bytes.NewReader(dsig), 5))
require.Equal(t, ErrShortSliceOrBuffer, err)
require.False(t, armored)
require.Equal(t, "", brand)
require.Equal(t, MessageTypeUnknown, typ)
require.Equal(t, Version{}, ver)
// invalid messages
invalid := append([]byte{}, dsig...)
invalid[0] = 0xff
armored, brand, typ, ver, err = ClassifyStream(bufio.NewReader(bytes.NewReader(invalid)))
require.Equal(t, err, ErrNotASaltpackMessage)
require.False(t, armored)
require.Equal(t, "", brand)
require.Equal(t, MessageTypeUnknown, typ)
require.Equal(t, Version{}, ver)
}
func TestClassifyEncryptedStreamAndMakeDecoder(t *testing.T) {
// Signcryption
msg := []byte("hello world")
keyring, receiverBoxKeys := makeKeyringWithOneKey(t)
senderSigningPrivKey := makeSigningKey(t, keyring)
sealed, err := SigncryptSeal(msg, ephemeralKeyCreator{}, senderSigningPrivKey, receiverBoxKeys, nil)
require.NoError(t, err)
plainSource, msgType, mki, senderPublic, isArmored, brand, ver, err := ClassifyEncryptedStreamAndMakeDecoder(bytes.NewReader(sealed), keyring, nil)
require.NoError(t, err)
plainString, err := io.ReadAll(plainSource)
require.NoError(t, err)
require.Equal(t, msg, plainString)
require.Equal(t, MessageTypeSigncryption, msgType)
require.Nil(t, mki)
require.Equal(t, senderSigningPrivKey.GetPublicKey(), senderPublic)
require.False(t, isArmored)
require.Equal(t, brand, "")
require.Equal(t, Version2(), ver)
sealedStr, err := SigncryptArmor62Seal(msg, ephemeralKeyCreator{}, senderSigningPrivKey, receiverBoxKeys, nil, ourBrand)
require.NoError(t, err)
plainSource, msgType, mki, senderPublic, isArmored, brand, ver, err = ClassifyEncryptedStreamAndMakeDecoder(bytes.NewReader([]byte(sealedStr)), keyring, nil)
require.NoError(t, err)
plainString, err = io.ReadAll(plainSource)
require.NoError(t, err)
require.Equal(t, msg, plainString)
require.Equal(t, MessageTypeSigncryption, msgType)
require.Nil(t, mki)
require.Equal(t, senderSigningPrivKey.GetPublicKey(), senderPublic)
require.True(t, isArmored)
require.Equal(t, brand, ourBrand)
require.Equal(t, Version2(), ver)
// Encryption
sender := newBoxKey(t)
ciphertext, err := Seal(Version2(), msg, sender, receiverBoxKeys)
require.NoError(t, err)
plainSource, msgType, mki, senderPublic, isArmored, brand, ver, err = ClassifyEncryptedStreamAndMakeDecoder(bytes.NewReader(ciphertext), keyring, nil)
require.NoError(t, err)
plainString, err = io.ReadAll(plainSource)
require.NoError(t, err)
require.Equal(t, msg, plainString)
require.Equal(t, MessageTypeEncryption, msgType)
require.NoError(t, err)
require.False(t, mki.SenderIsAnon)
require.False(t, mki.ReceiverIsAnon)
require.True(t, PublicKeyEqual(sender.GetPublicKey(), mki.SenderKey))
require.True(t, PublicKeyEqual(receiverBoxKeys[0], mki.ReceiverKey.GetPublicKey()))
require.Nil(t, senderPublic)
require.False(t, isArmored)
require.Equal(t, brand, "")
require.Equal(t, Version2(), ver)
ciphertextStr, err := EncryptArmor62Seal(Version2(), msg, sender, receiverBoxKeys, ourBrand)
require.NoError(t, err)
plainSource, msgType, mki, senderPublic, isArmored, brand, ver, err = ClassifyEncryptedStreamAndMakeDecoder(strings.NewReader(ciphertextStr), keyring, nil)
require.NoError(t, err)
plainString, err = io.ReadAll(plainSource)
require.NoError(t, err)
require.Equal(t, msg, plainString)
require.Equal(t, MessageTypeEncryption, msgType)
require.NoError(t, err)
require.False(t, mki.SenderIsAnon)
require.False(t, mki.ReceiverIsAnon)
require.True(t, PublicKeyEqual(sender.GetPublicKey(), mki.SenderKey))
require.True(t, PublicKeyEqual(receiverBoxKeys[0], mki.ReceiverKey.GetPublicKey()))
require.Nil(t, senderPublic)
require.True(t, isArmored)
require.Equal(t, brand, ourBrand)
require.Equal(t, Version2(), ver)
// short message
_, _, _, _, _, _, _, err = ClassifyEncryptedStreamAndMakeDecoder(strings.NewReader(ciphertextStr[:20]), keyring, nil)
require.Error(t, err)
require.Equal(t, ErrShortSliceOrBuffer, err)
// invalid messages
invalid := append([]byte{}, ciphertext...)
invalid[0] = 0xff
_, _, _, _, _, _, _, err = ClassifyEncryptedStreamAndMakeDecoder(bytes.NewReader(invalid), keyring, nil)
require.Error(t, err)
require.Equal(t, ErrNotASaltpackMessage, err)
}