Package com.adobe.internal.pdftoolkit.core.securityframework

Interface EncryptionHandler

public interface EncryptionHandler
Implements specific encryption and decryption algorithms.

  • Method Summary

    Modifier and Type
    Method
    Description
    EncryptionHandlerState
    createEncryptionHandlerState()
     
    byte[]
    decrypt(byte[] src, byte[] addKey)
    Decrypts the byte array with the encryption key calculated from the base encryption key held in the implementation and the addKey which is an addition to the base key.
    void
    decrypt(InputByteStream src, OutputByteStream dest, byte[] addKey)
    Decrypts the byte stream with the encryption key calculated from the base encryption key held in the implementation and the addKey which is an addition to the base key.
    byte[]
    encrypt(byte[] src, byte[] addKey)
    Encrypts the byte array with the encryption key calculated from the base encryption key held in the implementation and the addKey which is an addition to the base key.
    void
    encrypt(InputByteStream src, OutputByteStream dest, byte[] addKey)
    Encrypts the byte stream with the encryption key calculated from the base encryption key held in the implementation and the addKey which is an addition to the base key.

  • Method Details

    • encrypt

      byte[] encrypt(byte[] src, byte[] addKey) throws PDFSecurityConfigurationException
      Encrypts the byte array with the encryption key calculated from the base encryption key held in the implementation and the addKey which is an addition to the base key.

      The encryption algorithm depends on a particular implementation of this class.

      Parameters:
      src - the input byte array.
      addKey - the addition to the encryption key.
      Returns:
      encrypted byte array.
      Throws:
      PDFSecurityConfigurationException

    • encrypt

      void encrypt(InputByteStream src, OutputByteStream dest, byte[] addKey) throws PDFIOException, PDFSecurityConfigurationException
      Encrypts the byte stream with the encryption key calculated from the base encryption key held in the implementation and the addKey which is an addition to the base key.

      The encryption algorithm depends on a particular implementation of this class.

      Parameters:
      src - the input byte stream.
      dest - the output stream of bytes
      addKey - the addition to the encryption key.
      Throws:
      PDFSecurityConfigurationException
      PDFIOException

    • decrypt

      byte[] decrypt(byte[] src, byte[] addKey) throws PDFSecurityConfigurationException
      Decrypts the byte array with the encryption key calculated from the base encryption key held in the implementation and the addKey which is an addition to the base key.

      The encryption algorithm depends on a particular implementation of this class.

      Parameters:
      src - the input byte array.
      addKey - the addition to the encryption key.
      Returns:
      decrypted byte array.
      Throws:
      PDFSecurityConfigurationException

    • decrypt

      void decrypt(InputByteStream src, OutputByteStream dest, byte[] addKey) throws PDFIOException, PDFSecurityConfigurationException

      Decrypts the byte stream with the encryption key calculated from the base encryption key held in the implementation and the addKey which is an addition to the base key.

      The encryption algorithm depends on a particular implementation of this class.

      Parameters:
      src - an input stream of bytes.
      dest - the output stream of bytes
      addKey - the addition to the encryption key.
      Throws:
      PDFIOException
      PDFSecurityConfigurationException

    • createEncryptionHandlerState

      EncryptionHandlerState createEncryptionHandlerState() throws PDFSecurityConfigurationException
      Returns:
      EncryptionHandlerState object associated with this EncryptionHandler for sequential decryption/encryption of a data stream.
      Throws:
      PDFSecurityConfigurationException