Examples with Signature org.bouncycastle.asn1.ocsp.Signature used on opensource projects

Example 11 with Signature

use of org.bouncycastle.asn1.ocsp.Signature in project robovm by robovm.

the class DefaultSignatureAlgorithmIdentifierFinder method generate.

private static AlgorithmIdentifier generate(String signatureAlgorithm) {
    AlgorithmIdentifier sigAlgId;
    AlgorithmIdentifier encAlgId;
    AlgorithmIdentifier digAlgId;
    String algorithmName = Strings.toUpperCase(signatureAlgorithm);
    ASN1ObjectIdentifier sigOID = (ASN1ObjectIdentifier) algorithms.get(algorithmName);
    if (sigOID == null) {
        throw new IllegalArgumentException("Unknown signature type requested: " + algorithmName);
    }
    if (noParams.contains(sigOID)) {
        sigAlgId = new AlgorithmIdentifier(sigOID);
    } else if (params.containsKey(algorithmName)) {
        sigAlgId = new AlgorithmIdentifier(sigOID, (ASN1Encodable) params.get(algorithmName));
    } else {
        sigAlgId = new AlgorithmIdentifier(sigOID, DERNull.INSTANCE);
    }
    if (pkcs15RsaEncryption.contains(sigOID)) {
        encAlgId = new AlgorithmIdentifier(PKCSObjectIdentifiers.rsaEncryption, DERNull.INSTANCE);
    } else {
        encAlgId = sigAlgId;
    }
    if (sigAlgId.getAlgorithm().equals(PKCSObjectIdentifiers.id_RSASSA_PSS)) {
        digAlgId = ((RSASSAPSSparams) sigAlgId.getParameters()).getHashAlgorithm();
    } else {
        digAlgId = new AlgorithmIdentifier((ASN1ObjectIdentifier) digestOids.get(sigOID), DERNull.INSTANCE);
    }
    return sigAlgId;
}

Example 12 with Signature

use of org.bouncycastle.asn1.ocsp.Signature in project robovm by robovm.

the class CertUtils method generateAttrStructure.

private static AttributeCertificate generateAttrStructure(AttributeCertificateInfo attrInfo, AlgorithmIdentifier sigAlgId, byte[] signature) {
    ASN1EncodableVector v = new ASN1EncodableVector();
    v.add(attrInfo);
    v.add(sigAlgId);
    v.add(new DERBitString(signature));
    return AttributeCertificate.getInstance(new DERSequence(v));
}

Example 13 with Signature

use of org.bouncycastle.asn1.ocsp.Signature in project robovm by robovm.

the class CertUtils method generateStructure.

private static Certificate generateStructure(TBSCertificate tbsCert, AlgorithmIdentifier sigAlgId, byte[] signature) {
    ASN1EncodableVector v = new ASN1EncodableVector();
    v.add(tbsCert);
    v.add(sigAlgId);
    v.add(new DERBitString(signature));
    return Certificate.getInstance(new DERSequence(v));
}

Example 14 with Signature

use of org.bouncycastle.asn1.ocsp.Signature in project robovm by robovm.

the class CertUtils method generateCRLStructure.

private static CertificateList generateCRLStructure(TBSCertList tbsCertList, AlgorithmIdentifier sigAlgId, byte[] signature) {
    ASN1EncodableVector v = new ASN1EncodableVector();
    v.add(tbsCertList);
    v.add(sigAlgId);
    v.add(new DERBitString(signature));
    return CertificateList.getInstance(new DERSequence(v));
}

Example 15 with Signature

use of org.bouncycastle.asn1.ocsp.Signature in project robovm by robovm.

the class X509AttributeCertificateHolder method isSignatureValid.

/**
     * Validate the signature on the attribute certificate in this holder.
     *
     * @param verifierProvider a ContentVerifierProvider that can generate a verifier for the signature.
     * @return true if the signature is valid, false otherwise.
     * @throws CertException if the signature cannot be processed or is inappropriate.
     */
public boolean isSignatureValid(ContentVerifierProvider verifierProvider) throws CertException {
    AttributeCertificateInfo acinfo = attrCert.getAcinfo();
    if (!CertUtils.isAlgIdEqual(acinfo.getSignature(), attrCert.getSignatureAlgorithm())) {
        throw new CertException("signature invalid - algorithm identifier mismatch");
    }
    ContentVerifier verifier;
    try {
        verifier = verifierProvider.get((acinfo.getSignature()));
        OutputStream sOut = verifier.getOutputStream();
        DEROutputStream dOut = new DEROutputStream(sOut);
        dOut.writeObject(acinfo);
        sOut.close();
    } catch (Exception e) {
        throw new CertException("unable to process signature: " + e.getMessage(), e);
    }
    return verifier.verify(attrCert.getSignatureValue().getBytes());
}