com.entrust.toolkit.security.crypto.dsa

Class DsaWithNoneSignature

java.lang.Object

java.security.SignatureSpi

java.security.Signature

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

com.entrust.toolkit.security.crypto.dsa.DsaSignature

com.entrust.toolkit.security.crypto.dsa.DsaWithNoneSignature

All Implemented Interfaces:

ExtendedSignature

public final class DsaWithNoneSignature
extends DsaSignature

The DSA signature algorithm implemented with no underlying hash function (hashing must be done externally).

This implementation DOES NOT calculate the hash internally. It requires that the message hash be passed in through the update() API. This means that the message hash must be calculated externally. This provides the flexibility of allowing the DSA signature algorithm to be used with any underlying hash function.

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

Signature.getInstance("NONEwithDSA", "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:

8.0

See Also:

DsaSignature

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
DsaWithNoneSignature() The constructor; creates a new instance of the NONEwithDSA digital signature algorithm.

Method Summary

Methods inherited from class com.entrust.toolkit.security.crypto.dsa.DsaSignature

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

DsaWithNoneSignature

public DsaWithNoneSignature()

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

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("NONEwithDSA", "Entrust").

FIPS 140-2:

FIPS Service: Modify Object

This API is part of the logical interface to the Toolkit's FIPS 140-2 cryptographic module; use of this API causes the caller to assume the FIPS 140-2 user role and accesses the following FIPS 140-2 logical interfaces:

• control input interface (API call)
• status output interface (exceptions)