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pkg/cryptstate: add NULL crypto mode.

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This commit is contained in:
Mikkel Krautz 2012-12-09 12:58:59 +01:00
parent edf98fa75f
commit cbe2ffea3d
3 changed files with 75 additions and 3 deletions
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38
pkg/cryptstate/cryptstate_test.go
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@ -68,7 +68,10 @@ func TestOCB2AES128Decrypt(t *testing.T) {
cs := CryptState{}
out := make([]byte, 15)
cs.SetKey("OCB2-AES128", key[:], div[:], eiv[:])
cs.Decrypt(out, crypted[:])
err := cs.Decrypt(out, crypted[:])
if err != nil {
t.Fatalf("%v", err)
}
if !bytes.Equal(out, expected[:]) {
t.Errorf("Mismatch in output")
@ -146,11 +149,40 @@ func TestXSalsa20Poly1305Decrypt(t *testing.T) {
}
message, _ := hex.DecodeString("028442bc313f4626f1359e3b50122b6ce6fe66ddfe7d39d14e637eb4fd5b45beadab55198df6ab5368439792a23c87db70acb6156dc5ef957ac04f6276cf6093b84be77ff0849cc33e34b7254d5a8f65ad")
cs.SetKey("XSalsa20-Poly1305", key[:], div[:], eiv[:])
cs.SetKey("XSalsa20-Poly1305", key[:], eiv[:], div[:])
dst := make([]byte, len(message)-cs.Overhead())
cs.Decrypt(dst, message[:])
err := cs.Decrypt(dst, message[:])
if err != nil {
t.Fatalf("%v", err)
}
if !bytes.Equal(dst, expected[:]) {
t.Fatalf("mismatch! got\n%x\n, expected\n%x", dst, expected)
}
}
func TestNullEncrypt(t *testing.T) {
cs := CryptState{}
cs.SetKey("NULL", []byte{}, []byte{1}, []byte{1})
msg := []byte("HelloWorld")
dst := make([]byte, len(msg)+cs.Overhead())
cs.Encrypt(dst, msg)
if !bytes.Equal(dst[1:], msg) {
t.Fatalf("mismatch! got\n%x\n, expected\n%x", dst, msg)
}
}
func TestNullDecrypt(t *testing.T) {
cs := CryptState{}
cs.SetKey("NULL", []byte{}, []byte{1}, []byte{1})
msg := []byte{2}
msg = append(msg, []byte("HelloWorld")...)
dst := make([]byte, len(msg)-cs.Overhead())
err := cs.Decrypt(dst, msg)
if err != nil {
t.Fatalf("%v", err)
}
if !bytes.Equal(dst, msg[1:]) {
t.Fatalf("mismatch! got\n%x\n, expected\n%x", dst, msg)
}
}