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// +build !without_openssl
// We compare against Go's built-in GCM implementation. Since stupidgcm only
// supports 128-bit IVs and Go only supports that from 1.5 onward, we cannot
// run these tests on older Go versions.
package stupidgcm
import (
"testing"
"golang.org/x/crypto/chacha20poly1305"
)
// TestEncryptDecrypt encrypts and decrypts using both stupidgcm and Go's built-in
// GCM implementation and verifies that the results are identical.
func TestEncryptDecryptChacha(t *testing.T) {
key := randBytes(32)
c := newChacha20poly1305(key)
ref, err := chacha20poly1305.New(key)
if err != nil {
t.Fatal(err)
}
testEncryptDecrypt(t, c, ref)
}
// Seal re-uses the "dst" buffer it is large enough.
// Check that this works correctly by testing different "dst" capacities from
// 5000 to 16 and "in" lengths from 1 to 5000.
func TestInplaceSealChacha(t *testing.T) {
key := randBytes(32)
c := newChacha20poly1305(key)
ref, err := chacha20poly1305.New(key)
if err != nil {
t.Fatal(err)
}
testInplaceSeal(t, c, ref)
}
// Open re-uses the "dst" buffer it is large enough.
// Check that this works correctly by testing different "dst" capacities from
// 5000 to 16 and "in" lengths from 1 to 5000.
func TestInplaceOpenChacha(t *testing.T) {
key := randBytes(32)
c := newChacha20poly1305(key)
ref, err := chacha20poly1305.New(key)
if err != nil {
t.Fatal(err)
}
testInplaceOpen(t, c, ref)
}
// TestCorruption verifies that changes in the ciphertext result in a decryption
// error
func TestCorruptionChacha(t *testing.T) {
key := randBytes(32)
c := newChacha20poly1305(key)
testCorruption(t, c)
}
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