Examples with CompositePrivateKey com.github.zhenwei.provider.jcajce.CompositePrivateKey used on opensource projects

Example 1 with CompositePrivateKey

use of com.github.zhenwei.provider.jcajce.CompositePrivateKey in project LinLong-Java by zhenwei1108.

the class JcaContentSignerBuilder method build.

public ContentSigner build(PrivateKey privateKey) throws OperatorCreationException {
    if (privateKey instanceof CompositePrivateKey) {
        return buildComposite((CompositePrivateKey) privateKey);
    }
    try {
        final Signature sig = helper.createSignature(sigAlgId);
        final AlgorithmIdentifier signatureAlgId = sigAlgId;
        if (random != null) {
            sig.initSign(privateKey, random);
        } else {
            sig.initSign(privateKey);
        }
        return new ContentSigner() {

            private OutputStream stream = OutputStreamFactory.createStream(sig);

            public AlgorithmIdentifier getAlgorithmIdentifier() {
                return signatureAlgId;
            }

            public OutputStream getOutputStream() {
                return stream;
            }

            public byte[] getSignature() {
                try {
                    return sig.sign();
                } catch (SignatureException e) {
                    throw new RuntimeOperatorException("exception obtaining signature: " + e.getMessage(), e);
                }
            }
        };
    } catch (GeneralSecurityException e) {
        throw new OperatorCreationException("cannot create signer: " + e.getMessage(), e);
    }
}

Example 2 with CompositePrivateKey

use of com.github.zhenwei.provider.jcajce.CompositePrivateKey in project LinLong-Java by zhenwei1108.

the class JcaContentSignerBuilder method buildComposite.

private ContentSigner buildComposite(CompositePrivateKey privateKey) throws OperatorCreationException {
    try {
        List<PrivateKey> privateKeys = privateKey.getPrivateKeys();
        final ASN1Sequence sigAlgIds = ASN1Sequence.getInstance(sigAlgId.getParameters());
        final Signature[] sigs = new Signature[sigAlgIds.size()];
        for (int i = 0; i != sigAlgIds.size(); i++) {
            sigs[i] = helper.createSignature(AlgorithmIdentifier.getInstance(sigAlgIds.getObjectAt(i)));
            if (random != null) {
                sigs[i].initSign(privateKeys.get(i), random);
            } else {
                sigs[i].initSign(privateKeys.get(i));
            }
        }
        OutputStream sStream = OutputStreamFactory.createStream(sigs[0]);
        for (int i = 1; i != sigs.length; i++) {
            sStream = new TeeOutputStream(sStream, OutputStreamFactory.createStream(sigs[i]));
        }
        final OutputStream sigStream = sStream;
        return new ContentSigner() {

            OutputStream stream = sigStream;

            public AlgorithmIdentifier getAlgorithmIdentifier() {
                return sigAlgId;
            }

            public OutputStream getOutputStream() {
                return stream;
            }

            public byte[] getSignature() {
                try {
                    ASN1EncodableVector sigV = new ASN1EncodableVector();
                    for (int i = 0; i != sigs.length; i++) {
                        sigV.add(new DERBitString(sigs[i].sign()));
                    }
                    return new DERSequence(sigV).getEncoded(ASN1Encoding.DER);
                } catch (IOException e) {
                    throw new RuntimeOperatorException("exception encoding signature: " + e.getMessage(), e);
                } catch (SignatureException e) {
                    throw new RuntimeOperatorException("exception obtaining signature: " + e.getMessage(), e);
                }
            }
        };
    } catch (GeneralSecurityException e) {
        throw new OperatorCreationException("cannot create signer: " + e.getMessage(), e);
    }
}