Field Detail

• context

  protected TlsContext context

• encryptCipher

  protected ChaCha7539Engine encryptCipher

• decryptCipher

  protected ChaCha7539Engine decryptCipher

• encryptIV

  protected byte[] encryptIV

• decryptIV

  protected byte[] decryptIV

Constructor Detail

• Chacha20Poly1305

  public Chacha20Poly1305​(TlsContext context)
                   throws java.io.IOException

  Throws:

  java.io.IOException

Method Detail

• getPlaintextLimit

  public int getPlaintextLimit​(int ciphertextLimit)

  Specified by:

  getPlaintextLimit in interface TlsCipher

• encodePlaintext

  public byte[] encodePlaintext​(long seqNo,
                                short type,
                                byte[] plaintext,
                                int offset,
                                int len)
                         throws java.io.IOException

  Specified by:

  encodePlaintext in interface TlsCipher

  Throws:

  java.io.IOException

• decodeCiphertext

  public byte[] decodeCiphertext​(long seqNo,
                                 short type,
                                 byte[] ciphertext,
                                 int offset,
                                 int len)
                          throws java.io.IOException

  Specified by:

  decodeCiphertext in interface TlsCipher

  Throws:

  java.io.IOException

• initRecord

  protected KeyParameter initRecord​(StreamCipher cipher,
                                    boolean forEncryption,
                                    long seqNo,
                                    byte[] iv)

• calculateNonce

  protected byte[] calculateNonce​(long seqNo,
                                  byte[] iv)

• generateRecordMACKey

  protected KeyParameter generateRecordMACKey​(StreamCipher cipher)

• calculateRecordMAC

  protected byte[] calculateRecordMAC​(KeyParameter macKey,
                                      byte[] additionalData,
                                      byte[] buf,
                                      int off,
                                      int len)

• updateRecordMACLength

  protected void updateRecordMACLength​(Mac mac,
                                       int len)

• updateRecordMACText

  protected void updateRecordMACText​(Mac mac,
                                     byte[] buf,
                                     int off,
                                     int len)

• getAdditionalData

  protected byte[] getAdditionalData​(long seqNo,
                                     short type,
                                     int len)
                              throws java.io.IOException

  Throws:

  java.io.IOException