private static void initBlockCipherPaddings() { blockCipherPadding.put("ISO10126d2Padding", ISO10126d2Padding.class); blockCipherPadding.put("ISO7816d4Padding", ISO7816d4Padding.class); blockCipherPadding.put("PKCS7Padding", PKCS7Padding.class); blockCipherPadding.put("TBCPadding", TBCPadding.class); blockCipherPadding.put("X923Padding", X923Padding.class); blockCipherPadding.put("ZeroBytePadding", ZeroBytePadding.class); }
protected void engineSetPadding( String padding) throws NoSuchPaddingException { String paddingName = Strings.toUpperCase(padding); if (paddingName.equals("NOPADDING")) { if (cipher.wrapOnNoPadding()) { cipher = new BufferedGenericBlockCipher(new BufferedBlockCipher(cipher.getUnderlyingCipher())); } } else if (paddingName.equals("WITHCTS")) { cipher = new BufferedGenericBlockCipher(new CTSBlockCipher(cipher.getUnderlyingCipher())); } else { padded = true; if (isAEADModeName(modeName)) { throw new NoSuchPaddingException("Only NoPadding can be used with AEAD modes."); } else if (paddingName.equals("PKCS5PADDING") || paddingName.equals("PKCS7PADDING")) { cipher = new BufferedGenericBlockCipher(cipher.getUnderlyingCipher()); } else if (paddingName.equals("ZEROBYTEPADDING")) { cipher = new BufferedGenericBlockCipher(cipher.getUnderlyingCipher(), new ZeroBytePadding()); } else if (paddingName.equals("ISO10126PADDING") || paddingName.equals("ISO10126-2PADDING")) { cipher = new BufferedGenericBlockCipher(cipher.getUnderlyingCipher(), new ISO10126d2Padding()); } else if (paddingName.equals("X9.23PADDING") || paddingName.equals("X923PADDING")) { cipher = new BufferedGenericBlockCipher(cipher.getUnderlyingCipher(), new X923Padding()); } else if (paddingName.equals("ISO7816-4PADDING") || paddingName.equals("ISO9797-1PADDING")) { cipher = new BufferedGenericBlockCipher(cipher.getUnderlyingCipher(), new ISO7816d4Padding()); } else if (paddingName.equals("TBCPADDING")) { cipher = new BufferedGenericBlockCipher(cipher.getUnderlyingCipher(), new TBCPadding()); } else { throw new NoSuchPaddingException("Padding " + padding + " unknown."); } } }
public void performTest() { SecureRandom rand = new SecureRandom(new byte[20]); rand.setSeed(System.currentTimeMillis()); testPadding(new PKCS7Padding(), rand, Hex.decode("ffffff0505050505"), Hex.decode("0000000004040404")); PKCS7Padding padder = new PKCS7Padding(); try { padder.padCount(new byte[8]); fail("invalid padding not detected"); } catch (InvalidCipherTextException e) { if (!"pad block corrupted".equals(e.getMessage())) { fail("wrong exception for corrupt padding: " + e); } } testPadding(new ISO10126d2Padding(), rand, null, null); testPadding(new X923Padding(), rand, null, null); testPadding(new TBCPadding(), rand, Hex.decode("ffffff0000000000"), Hex.decode("00000000ffffffff")); testPadding(new ZeroBytePadding(), rand, Hex.decode("ffffff0000000000"), null); testPadding(new ISO7816d4Padding(), rand, Hex.decode("ffffff8000000000"), Hex.decode("0000000080000000")); testOutputSizes(); }
public void performTest() { SecureRandom rand = new SecureRandom(new byte[20]); rand.setSeed(System.currentTimeMillis()); testPadding(new PKCS7Padding(), rand, Hex.decode("ffffff0505050505"), Hex.decode("0000000004040404")); PKCS7Padding padder = new PKCS7Padding(); try { padder.padCount(new byte[8]); fail("invalid padding not detected"); } catch (InvalidCipherTextException e) { if (!"pad block corrupted".equals(e.getMessage())) { fail("wrong exception for corrupt padding: " + e); } } testPadding(new ISO10126d2Padding(), rand, null, null); testPadding(new X923Padding(), rand, null, null); testPadding(new TBCPadding(), rand, Hex.decode("ffffff0000000000"), Hex.decode("00000000ffffffff")); testPadding(new ZeroBytePadding(), rand, Hex.decode("ffffff0000000000"), null); testPadding(new ISO7816d4Padding(), rand, Hex.decode("ffffff8000000000"), Hex.decode("0000000080000000")); }