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The Bouncy Castle Java APIs for ASN.1 extension and utility APIs used to support bcpkix and bctls with the BC FIPS provider. The APIs may also be used with other providers although if being used in a FIPS context it is the responsibility of the user to ensure that any other providers used are FIPS certified and used appropriately.

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package org.bouncycastle.oer.its.ieee1609dot2;

import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.oer.its.ItsUtils;
import org.bouncycastle.oer.its.ieee1609dot2.basetypes.HashAlgorithm;
import org.bouncycastle.oer.its.ieee1609dot2.basetypes.Signature;

/**
 *  *     SignedData ::= SEQUENCE {
 *         hashId HashAlgorithm,
 *         tbsData ToBeSignedData,
 *         signer SignerIdentifier,
 *         signature Signature
 *     }
 * 
 */
public class SignedData
    extends ASN1Object
{
    private final HashAlgorithm hashId;
    private final ToBeSignedData tbsData;
    private final SignerIdentifier signer;
    private final Signature signature;

    public SignedData(HashAlgorithm hashId, ToBeSignedData toBeSignedData, SignerIdentifier signerIdentifier, Signature signature)
    {
        this.hashId = hashId;
        this.tbsData = toBeSignedData;
        this.signer = signerIdentifier;
        this.signature = signature;
    }

    private SignedData(ASN1Sequence sequence)
    {
        if (sequence.size() != 4)
        {
            throw new IllegalArgumentException("expected sequence size of 4");
        }

        hashId = HashAlgorithm.getInstance(sequence.getObjectAt(0));
        tbsData = ToBeSignedData.getInstance(sequence.getObjectAt(1));
        signer = SignerIdentifier.getInstance(sequence.getObjectAt(2));
        signature = Signature.getInstance(sequence.getObjectAt(3));
    }


    public static SignedData getInstance(Object src)
    {
        if (src instanceof SignedData)
        {
            return (SignedData)src;
        }

        if (src != null)
        {
            return new SignedData(ASN1Sequence.getInstance(src));
        }

        return null;
    }

    public ASN1Primitive toASN1Primitive()
    {
        return ItsUtils.toSequence(hashId, tbsData, signer, signature);
    }

    public HashAlgorithm getHashId()
    {
        return hashId;
    }

    public ToBeSignedData getTbsData()
    {
        return tbsData;
    }

    public SignerIdentifier getSigner()
    {
        return signer;
    }

    public Signature getSignature()
    {
        return signature;
    }

    public static Builder builder()
    {
        return new Builder();
    }

    public static class Builder
    {
        private HashAlgorithm hashId;
        private ToBeSignedData tbsData;
        private SignerIdentifier signer;
        private Signature signature;


        public Builder setHashId(HashAlgorithm hashId)
        {
            this.hashId = hashId;
            return this;
        }

        public Builder setTbsData(ToBeSignedData tbsData)
        {
            this.tbsData = tbsData;
            return this;
        }

        public Builder setSigner(SignerIdentifier signer)
        {
            this.signer = signer;
            return this;
        }

        public Builder setSignature(Signature signature)
        {
            this.signature = signature;
            return this;
        }

        public SignedData createSignedData()
        {
            return new SignedData(hashId, tbsData, signer, signature);
        }
    }


}