org.spongycastle.operator.bc

Class BcDSAContentVerifierProviderBuilder

java.lang.Object

org.spongycastle.operator.bc.BcContentVerifierProviderBuilder

org.spongycastle.operator.bc.BcDSAContentVerifierProviderBuilder

public class BcDSAContentVerifierProviderBuilder
extends BcContentVerifierProviderBuilder

Field Summary

Fields inherited from class org.spongycastle.operator.bc.BcContentVerifierProviderBuilder

digestProvider

Constructor Summary

Constructors

Constructor and Description
BcDSAContentVerifierProviderBuilder(DigestAlgorithmIdentifierFinder digestAlgorithmFinder)

Method Summary

Modifier and Type	Method and Description
protected org.spongycastle.crypto.Signer	createSigner(org.spongycastle.asn1.x509.AlgorithmIdentifier sigAlgId) Create the correct signer for the algorithm identifier sigAlgId.
protected org.spongycastle.crypto.params.AsymmetricKeyParameter	extractKeyParameters(org.spongycastle.asn1.x509.SubjectPublicKeyInfo publicKeyInfo) Extract an AsymmetricKeyParameter from the passed in SubjectPublicKeyInfo structure.

Methods inherited from class org.spongycastle.operator.bc.BcContentVerifierProviderBuilder

build, build

Methods inherited from class java.lang.Object

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

Constructor Detail

BcDSAContentVerifierProviderBuilder

public BcDSAContentVerifierProviderBuilder(DigestAlgorithmIdentifierFinder digestAlgorithmFinder)

Method Detail

createSigner

protected org.spongycastle.crypto.Signer createSigner(org.spongycastle.asn1.x509.AlgorithmIdentifier sigAlgId)
                                               throws OperatorCreationException

Description copied from class: BcContentVerifierProviderBuilder

Create the correct signer for the algorithm identifier sigAlgId.

Specified by:

createSigner in class BcContentVerifierProviderBuilder

Parameters:

sigAlgId - the algorithm details for the signature we want to verify.

Returns:

a Signer object.

Throws:

OperatorCreationException - if the Signer cannot be constructed.

extractKeyParameters

protected org.spongycastle.crypto.params.AsymmetricKeyParameter extractKeyParameters(org.spongycastle.asn1.x509.SubjectPublicKeyInfo publicKeyInfo)
                                                                              throws java.io.IOException

Description copied from class: BcContentVerifierProviderBuilder

Extract an AsymmetricKeyParameter from the passed in SubjectPublicKeyInfo structure.

Specified by:

extractKeyParameters in class BcContentVerifierProviderBuilder

Parameters:

publicKeyInfo - a publicKeyInfo structure describing the public key required.

Returns:

an AsymmetricKeyParameter object containing the appropriate public key.

Throws:

java.io.IOException - if the publicKeyInfo data cannot be parsed,