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test: fix v10 Windows test to use 32B AES-256-GCM key

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decryptValue routes v10 by key length (32B→GCM, 16B→CBC); the test's
16B key landed on the CBC path against GCM ciphertext. Real Windows v10
keys are always 32B.
This commit is contained in:
moonD4rk
2026-06-01 23:01:22 +08:00
parent d720762595
commit f230aeb342
1 changed files with 5 additions and 3 deletions
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browser/chromium/decrypt_windows_test.go
+5 -3
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@@ -54,17 +54,19 @@ func encryptWithDPAPI(plaintext []byte) ([]byte, error) {
}
func TestDecryptValue_V10_Windows(t *testing.T) {
// Windows uses AES-GCM for v10 (not AES-CBC like macOS/Linux)
// Windows v10 is AES-256-GCM, so the master key is 32 bytes; decryptValue routes v10 by key
// length (32B→GCM). testAESKey is 16B, so this uses an explicit 32B key.
key32 := []byte("0123456789abcdef0123456789abcdef") // 32 bytes
plaintext := []byte("test_secret_value")
nonce := []byte("123456789012") // 12-byte nonce
gcmEncrypted, err := crypto.AESGCMEncrypt(testAESKey, nonce, plaintext)
gcmEncrypted, err := crypto.AESGCMEncrypt(key32, nonce, plaintext)
require.NoError(t, err)
// v10 format on Windows: "v10" + nonce(12) + encrypted
ciphertext := append([]byte("v10"), append(nonce, gcmEncrypted...)...)
got, err := decryptValue(masterkey.MasterKeys{V10: testAESKey}, ciphertext)
got, err := decryptValue(masterkey.MasterKeys{V10: key32}, ciphertext)
require.NoError(t, err)
assert.Equal(t, plaintext, got)
}