Top Description Methods
org.bouncycastle.crypto

public Interface SkippingCipher

Known Direct Subinterfaces
org.bouncycastle.crypto.SkippingStreamCipher
Ciphers producing a key stream which can be reset to particular points in the stream implement this.

Method Summary

Modifier and TypeMethod and Description
public long

Returns:

the current byte position.
getPosition()

Return the current "position" of the cipher

public long

Returns:

the byte position moved to.
seekTo(long
the number of bytes in to set the cipher state to.
position)

Reset the cipher and then skip forward to a given position.

public long

Returns:

the number of bytes actually skipped.
skip(long
the number of bytes to skip (positive forward, negative backwards).
numberOfBytes)

Skip numberOfBytes forwards, or backwards.

Method Detail

getPositionback to summary
public long getPosition()

Return the current "position" of the cipher

Returns:long

the current byte position.

seekToback to summary
public long seekTo(long position)

Reset the cipher and then skip forward to a given position.

Parameters
position:long

the number of bytes in to set the cipher state to.

Returns:long

the byte position moved to.

skipback to summary
public long skip(long numberOfBytes)

Skip numberOfBytes forwards, or backwards.

Parameters
numberOfBytes:long

the number of bytes to skip (positive forward, negative backwards).

Returns:long

the number of bytes actually skipped.

Exceptions
IllegalArgumentException:
if numberOfBytes is an invalid value.