Package com.mku.salmon

Class Encryptor

  • public class Encryptor
extends java.lang.Object
    Encrypts byte arrays.

    • Constructor Summary

      Constructors 
      Constructor Description
      Encryptor()
      Instantiate an encryptor.
      Encryptor​(int threads)
      Instantiate an encryptor with parallel tasks and buffer size.
      Encryptor​(int threads, int bufferSize)
      Instantiate an encryptor with parallel tasks and buffer size.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void close()
      Close the decryptor and release associated resources
      byte[] encrypt​(byte[] data, byte[] key, byte[] nonce)
      Encrypt a byte array and embedded the nonce.
      byte[] encrypt​(byte[] data, byte[] key, byte[] nonce, EncryptionFormat format)
      Encrypt a byte array.
      byte[] encrypt​(byte[] data, byte[] key, byte[] nonce, EncryptionFormat format, boolean integrity, byte[] hashKey)
      Encrypts a byte array using the nonce, the integrity hash key.
      byte[] encrypt​(byte[] data, byte[] key, byte[] nonce, EncryptionFormat format, boolean integrity, byte[] hashKey, int chunkSize)
      Encrypts a byte array using the nonce, the integrity hash key, and the chunk size.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • Encryptor

        public Encryptor()
        Instantiate an encryptor.

      • Encryptor

        public Encryptor​(int threads)
        Instantiate an encryptor with parallel tasks and buffer size.
        Parameters:
        threads - The number of threads to use.

      • Encryptor

        public Encryptor​(int threads,
                 int bufferSize)
        Instantiate an encryptor with parallel tasks and buffer size.
        Parameters:
        threads - The number of threads to use.
        bufferSize - The buffer size to use. It is recommended for performance to use a multiple of the chunk size if you enabled integrity otherwise a multiple of the AES block size (16 bytes).

    • Method Detail

      • encrypt

        public byte[] encrypt​(byte[] data,
                      byte[] key,
                      byte[] nonce)
               throws java.io.IOException
        Encrypt a byte array and embedded the nonce.
        Parameters:
        data - The data to encrypt.
        key - The key to use.
        nonce - Nonce to use.
        Returns:
        The encrypted data
        Throws:
        SecurityException - Thrown if there is a security exception
        IntegrityException - Thrown if the data are corrupt or tampered with.
        java.io.IOException - Thrown if there is an IO error.

      • encrypt

        public byte[] encrypt​(byte[] data,
                      byte[] key,
                      byte[] nonce,
                      EncryptionFormat format)
               throws java.io.IOException
        Encrypt a byte array.
        Parameters:
        data - The data to encrypt.
        key - The key to use.
        nonce - Nonce to use.
        format - The format to use, see EncryptionFormat
        Returns:
        The encrypted data
        Throws:
        SecurityException - Thrown if there is a security exception
        IntegrityException - Thrown if the data are corrupt or tampered with.
        java.io.IOException - Thrown if there is an IO error.

      • encrypt

        public byte[] encrypt​(byte[] data,
                      byte[] key,
                      byte[] nonce,
                      EncryptionFormat format,
                      boolean integrity,
                      byte[] hashKey)
               throws java.io.IOException
        Encrypts a byte array using the nonce, the integrity hash key.
        Parameters:
        data - The byte array to be encrypted.
        key - The AES key to be used.
        nonce - The nonce to be used.
        format - The format to use, see EncryptionFormat
        integrity - True if you want to calculate and store hash signatures for each chunkSize.
        hashKey - Hash key to be used for all chunks.
        Returns:
        The byte array with the encrypted data.
        Throws:
        SecurityException - Thrown if there is a security exception
        java.io.IOException - Thrown if there is an IO error.
        IntegrityException - Thrown if the data are corrupt or tampered with.

      • encrypt

        public byte[] encrypt​(byte[] data,
                      byte[] key,
                      byte[] nonce,
                      EncryptionFormat format,
                      boolean integrity,
                      byte[] hashKey,
                      int chunkSize)
               throws java.io.IOException
        Encrypts a byte array using the nonce, the integrity hash key, and the chunk size.
        Parameters:
        data - The byte array to be encrypted.
        key - The AES key to be used.
        nonce - The nonce to be used.
        format - The format to use, see EncryptionFormat
        integrity - True if you want to calculate and store hash signatures for each chunkSize.
        hashKey - Hash key to be used for all chunks.
        chunkSize - The chunk size.
        Returns:
        The byte array with the encrypted data.
        Throws:
        SecurityException - Thrown if there is a security exception
        java.io.IOException - Thrown if there is an IO error.
        IntegrityException - Thrown if the data are corrupt or tampered with.

      • close

        public void close()
        Close the decryptor and release associated resources