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TestAddCypherWithSmallKeyModulus fixed - m can't be bigger than N now

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For Paillier modulus N=pq, plaintext m space is [0, N). We now report an
error if m is not in the allowed range.
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Piotr Dyraga committed 2018-07-31 17:06:42 +02:00
1 parent 2a33f6e35c
commit edb17e88e7
1 file changed
+4 -4
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paillier_test.go
+4 -4
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@@ -142,13 +142,13 @@ func TestAddCyphers(t *testing.T) {
func TestAddCypherWithSmallKeyModulus(t *testing.T) { func TestAddCypherWithSmallKeyModulus(t *testing.T) {
privateKey := CreatePrivateKey(big.NewInt(7), big.NewInt(5)) privateKey := CreatePrivateKey(big.NewInt(7), big.NewInt(5))
cypher1, _ := privateKey.Encrypt(big.NewInt(41), rand.Reader) cypher1, _ := privateKey.Encrypt(big.NewInt(30), rand.Reader)
cypher2, _ := privateKey.Encrypt(big.NewInt(219), rand.Reader) cypher2, _ := privateKey.Encrypt(big.NewInt(25), rand.Reader)
cypher3, _ := privateKey.Encrypt(big.NewInt(54), rand.Reader) cypher3, _ := privateKey.Encrypt(big.NewInt(11), rand.Reader)
cypher4 := privateKey.Add(cypher1, cypher2, cypher3) cypher4 := privateKey.Add(cypher1, cypher2, cypher3)
m := privateKey.Decrypt(cypher4) m := privateKey.Decrypt(cypher4)
if m.Cmp(big.NewInt(34)) != 0 { if m.Cmp(big.NewInt(31)) != 0 {
t.Errorf("Unexpected decrypted value [%v]", m) t.Errorf("Unexpected decrypted value [%v]", m)
} }
} }