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Code Issues Releases Wiki Activity

Switch to AES/GCM-SIV for cloud data encryption

This commit is contained in:
M66B 2023-01-13 18:40:41 +01:00
parent 67a49e6056
commit a8da6e3ea3
1 changed files with 2 additions and 2 deletions
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4
app/src/main/java/eu/faircode/email/FragmentOptionsBackup.java
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@ -1675,10 +1675,10 @@ public class FragmentOptionsBackup extends FragmentBase implements SharedPrefere
private String encryptValue(String value, byte[] key)
throws NoSuchPaddingException, NoSuchAlgorithmException, InvalidAlgorithmParameterException, InvalidKeyException, IllegalBlockSizeException, BadPaddingException {
SecretKeySpec secret = new SecretKeySpec(key, "AES");
Cipher cipher = Cipher.getInstance("AES/GCM/NoPadding");
Cipher cipher = Cipher.getInstance("AES/GCM-SIV/NoPadding");
IvParameterSpec ivSpec = new IvParameterSpec(new byte[12]);
cipher.updateAAD(ByteBuffer.allocate(4).putInt(0).array());
cipher.init(Cipher.ENCRYPT_MODE, secret, ivSpec);
//cipher.updateAAD(ByteBuffer.allocate(4).putInt(0).array());
byte[] encrypted = cipher.doFinal(value.getBytes());
return Base64.encodeToString(encrypted, Base64.NO_PADDING | Base64.NO_WRAP);
}