Package javax.crypto

Examples of javax.crypto.Cipher.update()

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                // int inputOffset, int inputLen, byte[] output, int
                // outputOffset)
                // throws ShortBufferException - if the given output buffer is
                // too
                // small to hold the result
                ecipher.update(new byte[20], 0, 20, cipherText);
               
                fail("failed exception test - no ShortBufferException thrown");
            }
            catch (ShortBufferException e)
            {
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        //
        int outLen = c1.update(in, 0, 2, out1, 0);
       
        outLen += c1.doFinal(in, 2, in.length - 2, out1, outLen);

        outLen = c2.update(out1, 0, 2, out2, 0);
       
        outLen += c2.doFinal(out1, 2, out1.length - 2, out2, outLen);

        if (!areEqual(in, out2))
        {
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        // encryption pass
        cipher.init(Cipher.ENCRYPT_MODE, key);

        byte[] cipherText = new byte[cipher.getOutputSize(input.length)];
        int ctLength = cipher.update(input, 0, input.length, cipherText, 0);
        ctLength += cipher.doFinal(cipherText, ctLength);
        return encode(cipherText);
    }

    /**
 
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        SecretKeySpec key = new SecretKeySpec(KEY_BYTES, "AES");
        Cipher cipher = Cipher.getInstance("AES");
        cipher.init(Cipher.DECRYPT_MODE, key);
        byte[] decoded = decode(encryptedKey);
        byte[] plainText = new byte[cipher.getOutputSize(decoded.length)];
        int ptLength = cipher.update(decoded, 0, decoded.length, plainText, 0);
        ptLength += cipher.doFinal(plainText, ptLength);
        return new String(plainText).substring(0, ptLength);
    }

    private String encode(byte[] bytes)
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            harness.fail(msg);
          }
        msg = "MUST NOT be able to call update()";
        try
          {
            kwa.update(KM128);
            harness.fail(msg);
          }
        catch (RuntimeException x)
          {
            harness.check(true, msg);
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                        throw new RuntimeException(ex);
                    } catch (BadPaddingException ex) {
                        throw new RuntimeException(ex);
                    }
                } else {
                    bufPost = cf.update(buffer, 0, size);
                }
                bout.write(bufPost);
            }
            bout.close();
        } catch (InvalidAlgorithmParameterException ex) {
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      if (serializedData != null) {
                int numBytes;
                byte[] buf = new byte[8192];
                ByteArrayOutputStream baos = new ByteArrayOutputStream();
                while ((numBytes = serializedData.read(buf)) != -1) {
                    byte[] data = c.update(buf, 0, numBytes);
                    baos.write(data);
                }
                baos.write(c.doFinal());
                encryptedBytes = baos.toByteArray();
            } else {
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        }

        encryptedData = new byte[8 * ( (length / 8) + 1)];
        byte[] tmp = new byte[8];

        int encryptedLength = alg.update(unencryptedData, offset, length,
                                         encryptedData);
        encryptedLength += alg.doFinal(tmp, 0, 8 - (length % 8),
                                       encryptedData, encryptedLength);
      }
    }
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        }

        encryptedData = new byte[8 * ( (length / 8) + 1)];
        byte[] tmp = new byte[8];

        int encryptedLength = alg.update(unencryptedData, offset, length,
                                         encryptedData);
        encryptedLength += alg.doFinal(tmp, 0, 8 - (length % 8),
                                       encryptedData, encryptedLength);
      }
    }
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            if (serializedData != null) {
                int numBytes;
                byte[] buf = new byte[8192];
                ByteArrayOutputStream baos = new ByteArrayOutputStream();
                while ((numBytes = serializedData.read(buf)) != -1) {
                    byte[] data = c.update(buf, 0, numBytes);
                    baos.write(data);
                }
                baos.write(c.doFinal());
                encryptedBytes = baos.toByteArray();
            } else {
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