jp.co.ricoh.dsdk.scard.option.security
Interface SignCredential

All Known Implementing Classes:

jp.co.ricoh.dsdk.scard.option.security.AbstractSignCredential

public interface SignCredential

This interface defines the functionality used by a card service to sign a block of data that matches the key's input length .

Method Summary

int	getInputLength() Return the input credential`s length that the cryptographic algorithm can process .
byte[]	sign(byte[] credential) Sign/encrypt a block of data .

Method Detail

sign

public byte[] sign(byte[] credential)
            throws java.lang.RuntimeException

Sign/encrypt a block of data .

Parameters:

credential - The credential to be signed . Its length must match the length obtained with getInputLength() method.

Returns:

the signature/cryptogram .

Throws:

java.lang.RuntimeException - Because signing credential is a fatal process, if it is failed, throws an unchecked exception .

getInputLength

public int getInputLength()

Return the input credential`s length that the cryptographic algorithm can process .

Returns:

the length of credential .