class HexaPDF:: Encryption:: RubyARC4
Parent | Object |
---|
Pure Ruby implementation of the general encryption algorithm ARC4
.
Since this algorithm is implemented in pure Ruby, it is not very fast. Therefore the FastARC4
class based on OpenSSL should be used when possible.
For reference: This implementation is about 250 times slower than the FastARC4
version.
See: PDF2.0 s7.6.3
Constants
- INITIAL_STATE¶
The initial state which is then modified by the key-scheduling algorithm
Public Class Methods
Public Instance Methods
Processes the given data.
Since this is a symmetric algorithm, the same method can be used for encryption and decryption.
Also aliased as: decrypt, encrypt