/extern/spongycastle/pkix/src/main/java/org/spongycastle/operator/bc/BcDSAContentVerifierProviderBuilder.java
https://gitlab.com/vizilo/fdroidclient · Java · 40 lines · 33 code · 7 blank · 0 comment · 0 complexity · 6e94adf63c6be0b4e2a373aaa5563193 MD5 · raw file
- package org.spongycastle.operator.bc;
- import java.io.IOException;
- import org.spongycastle.asn1.x509.AlgorithmIdentifier;
- import org.spongycastle.asn1.x509.SubjectPublicKeyInfo;
- import org.spongycastle.crypto.Digest;
- import org.spongycastle.crypto.Signer;
- import org.spongycastle.crypto.params.AsymmetricKeyParameter;
- import org.spongycastle.crypto.signers.DSADigestSigner;
- import org.spongycastle.crypto.signers.DSASigner;
- import org.spongycastle.crypto.util.PublicKeyFactory;
- import org.spongycastle.operator.DigestAlgorithmIdentifierFinder;
- import org.spongycastle.operator.OperatorCreationException;
- public class BcDSAContentVerifierProviderBuilder
- extends BcContentVerifierProviderBuilder
- {
- private DigestAlgorithmIdentifierFinder digestAlgorithmFinder;
- public BcDSAContentVerifierProviderBuilder(DigestAlgorithmIdentifierFinder digestAlgorithmFinder)
- {
- this.digestAlgorithmFinder = digestAlgorithmFinder;
- }
- protected Signer createSigner(AlgorithmIdentifier sigAlgId)
- throws OperatorCreationException
- {
- AlgorithmIdentifier digAlg = digestAlgorithmFinder.find(sigAlgId);
- Digest dig = digestProvider.get(digAlg);
- return new DSADigestSigner(new DSASigner(), dig);
- }
- protected AsymmetricKeyParameter extractKeyParameters(SubjectPublicKeyInfo publicKeyInfo)
- throws IOException
- {
- return PublicKeyFactory.createKey(publicKeyInfo);
- }
- }