Example usage for org.bouncycastle.asn1 DERSequence getEncoded

Introduction

In this page you can find the example usage for org.bouncycastle.asn1 DERSequence getEncoded.

Prototype

public byte[] getEncoded() throws IOException

Source Link

Document

Return the default BER or DER encoding for this object.

Usage

From source file:tr.gov.turkiye.esign.cms.SignerInfo.java

/**
 * Gets encoded bytes of authenticated attributes
 * @return byte array//from  w  ww .  j a v  a 2  s.  com
 * @throws SmartCardException 
 */
public byte[] getEncodedAuthenticatedAttributes() throws SmartCardException {
    try {
        final ByteArrayOutputStream bOut = new ByteArrayOutputStream();
        final DEROutputStream dOut = new DEROutputStream(bOut);
        dOut.writeObject(getSignedAttributesSet());
        final byte[] bytesToSign = bOut.toByteArray();

        final byte[] bytesToSignHash = getHash(bytesToSign);
        ASN1EncodableVector v = new ASN1EncodableVector();
        if (isSHA256) {
            v.add(ObjectID.idSHA256);
        } else {
            v.add(ObjectID.idSHA1);
        }
        v.add(DERNull.INSTANCE);
        final DERSequence algorithmIdentifier = new DERSequence(v);
        v = new ASN1EncodableVector();
        v.add(algorithmIdentifier);
        v.add(new DEROctetString(bytesToSignHash));
        final DERSequence digestInfo = new DERSequence(v);
        final byte[] bytes = digestInfo.getEncoded();
        return bytes;
    } catch (IOException ex) {
        throw new SmartCardException(ExceptionSupport.getValue("IOException"), ex);
    }
}