de.intarsys.pdf.crypt
Interface ICryptHandler

All Known Subinterfaces:

ISecurityHandler

All Known Implementing Classes:

AbstractCryptHandler, AbstractSecurityHandler, AESCryptHandler, ArcFourCryptHandler, IdentityCryptHandler, StandardCryptHandler, StandardSecurityHandler, StandardSecurityHandlerR2, StandardSecurityHandlerR3, StandardSecurityHandlerR4

public interface ICryptHandler

The encryption/decryption algorithm for a PDF document. This object does the real crypt work, whereas the context like initialization steps, authenthication, authorization is done by the ISecurityHandler and ISystemSecurityHandler.

PDF security /V4 defines two standard algorithms, RC4 and AES based. Additionally a transparent algorithm provided by a ISecurityHandler can be used.

Method Summary

byte[]	decrypt(COSObjectKey key, byte[] bytes) Decrypt any bytes in the context of COSObject referenced by the provided key.
byte[]	encrypt(COSObjectKey key, byte[] bytes) Encrypt any bytes in the context of COSObject referenced by the provided key.

Method Detail

decrypt

byte[] decrypt(COSObjectKey key,
               byte[] bytes)
               throws COSSecurityException

Decrypt any bytes in the context of COSObject referenced by the provided key.

Parameters:

key - of the object which provides the context

bytes - to decrypt

Returns:

the decrypted bytes

Throws:

COSSecurityException

encrypt

byte[] encrypt(COSObjectKey key,
               byte[] bytes)
               throws COSSecurityException

Encrypt any bytes in the context of COSObject referenced by the provided key.

Parameters:

key - of the object which provides the context

bytes - to decrypt

Returns:

the encrypted bytes

Throws:

COSSecurityException