com.entrust.toolkit.security.crypto.signature

Class Sha256RsaSignature

java.lang.Object

java.security.SignatureSpi

java.security.Signature

com.entrust.toolkit.security.crypto.signature.DigitalSignature

com.entrust.toolkit.security.crypto.signature.RsaSignature

com.entrust.toolkit.security.crypto.signature.RsaPkcs1v1_5Signature

com.entrust.toolkit.security.crypto.signature.Sha256RsaSignature

All Implemented Interfaces:

ExtendedSignature

public final class Sha256RsaSignature
extends RsaPkcs1v1_5Signature

The RSA-PKCS1-v1_5 signature algorithm with SHA-256 as the underlying hash function.

This implementation calculates the hash internally, thus it is the message itself (being signed or verified) that is passed in through the update() API.

An instance of this algorithm can be obtained using the Java Cryptography Architecture (JCA), by requesting a 'SHA256withRSA' digital signature from the Entrust cryptographic service provider. This can be done using the following call:

Signature.getInstance("SHA256withRSA", "Entrust");

FIPS 140-2:

This class is part of the Toolkit's FIPS 140-2 cryptographic module and contains APIs that are considered part of the logical interface to the Toolkit's FIPS 140-2 cryptographic module; refer to the API documentation for further details

Since:

7.0

See Also:

PKCS #1: RSA Cryptography Standard, FIPS 186-3, Digital Signature Standard (DSS)

Field Summary

Fields inherited from class java.security.Signature

SIGN, state, UNINITIALIZED, VERIFY

Fields inherited from class java.security.SignatureSpi

appRandom

Constructor Summary

Constructors

Constructor and Description
Sha256RsaSignature() The constructor; creates a new instance of the SHA256withRSA digital signature algorithm instance.

Method Summary

Methods inherited from class com.entrust.toolkit.security.crypto.signature.RsaSignature

getDigitalSignatureImpl

Methods inherited from class com.entrust.toolkit.security.crypto.signature.DigitalSignature

assertParametersValid, engineGetParameter, engineGetParameters, engineInitSign, engineInitSign, engineInitVerify, engineSetParameter, engineSetParameter, engineSign, engineSign, engineUpdate, engineUpdate, engineVerify, engineVerify, generateDefaultParameters, getDigest, getPrng, toAlgorithmParameters

Methods inherited from class java.security.Signature

clone, getAlgorithm, getInstance, getInstance, getInstance, getParameter, getParameters, getProvider, initSign, initSign, initVerify, initVerify, setParameter, setParameter, sign, sign, toString, update, update, update, update, verify, verify

Methods inherited from class java.security.SignatureSpi

engineUpdate

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Sha256RsaSignature

public Sha256RsaSignature()

The constructor; creates a new instance of the SHA256withRSA digital signature algorithm instance.

Applications should not use this constructor, instead the signature algorithm should be requested from the appropriate JCA/JCE cryptographic service provider as follows: Signature.getInstance("SHA256withRSA", "Entrust")