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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.asn1.tsp;

import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Integer;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.DERTaggedObject;


public class Accuracy
    extends ASN1Object
{
    ASN1Integer seconds;

    ASN1Integer millis;

    ASN1Integer micros;

    // constantes
    protected static final int MIN_MILLIS = 1;

    protected static final int MAX_MILLIS = 999;

    protected static final int MIN_MICROS = 1;

    protected static final int MAX_MICROS = 999;

    protected Accuracy()
    {
    }

    public Accuracy(
        ASN1Integer seconds,
        ASN1Integer millis,
        ASN1Integer micros)
    {
        if (null != millis)
        {
            int millisValue = millis.intValueExact();
            if (millisValue < MIN_MILLIS || millisValue > MAX_MILLIS)
            {
                throw new IllegalArgumentException("Invalid millis field : not in (1..999)");
            }
        }
        if (null != micros)
        {
            int microsValue = micros.intValueExact();
            if (microsValue < MIN_MICROS || microsValue > MAX_MICROS)
            {
                throw new IllegalArgumentException("Invalid micros field : not in (1..999)");
            }
        }

        this.seconds = seconds;
        this.millis = millis;
        this.micros = micros;
    }

    private Accuracy(ASN1Sequence seq)
    {
        seconds = null;
        millis = null;
        micros = null;

        for (int i = 0; i < seq.size(); i++)
        {
            // seconds
            if (seq.getObjectAt(i) instanceof ASN1Integer)
            {
                seconds = (ASN1Integer) seq.getObjectAt(i);
            }
            else if (seq.getObjectAt(i) instanceof ASN1TaggedObject)
            {
                ASN1TaggedObject extra = (ASN1TaggedObject)seq.getObjectAt(i);

                switch (extra.getTagNo())
                {
                case 0:
                    millis = ASN1Integer.getInstance(extra, false);
                    int millisValue = millis.intValueExact();
                    if (millisValue < MIN_MILLIS || millisValue > MAX_MILLIS)
                    {
                        throw new IllegalArgumentException("Invalid millis field : not in (1..999)");
                    }
                    break;
                case 1:
                    micros = ASN1Integer.getInstance(extra, false);
                    int microsValue = micros.intValueExact();
                    if (microsValue < MIN_MICROS || microsValue > MAX_MICROS)
                    {
                        throw new IllegalArgumentException("Invalid micros field : not in (1..999)");
                    }
                    break;
                default:
                    throw new IllegalArgumentException("Invalid tag number");
                }
            }
        }
    }

    public static Accuracy getInstance(Object o)
    {
        if (o instanceof Accuracy)
        {
            return (Accuracy) o;
        }

        if (o != null)
        {
            return new Accuracy(ASN1Sequence.getInstance(o));
        }

        return null;
    }

    public ASN1Integer getSeconds()
    {
        return seconds;
    }

    public ASN1Integer getMillis()
    {
        return millis;
    }

    public ASN1Integer getMicros()
    {
        return micros;
    }

    /**
     *      * Accuracy ::= SEQUENCE {
     *             seconds        INTEGER              OPTIONAL,
     *             millis     [0] INTEGER  (1..999)    OPTIONAL,
     *             micros     [1] INTEGER  (1..999)    OPTIONAL
     *             }
     * 
     */
    public ASN1Primitive toASN1Primitive()
    {
        ASN1EncodableVector v = new ASN1EncodableVector(3);
        
        if (seconds != null)
        {
            v.add(seconds);
        }
        
        if (millis != null)
        {
            v.add(new DERTaggedObject(false, 0, millis));
        }
        
        if (micros != null)
        {
            v.add(new DERTaggedObject(false, 1, micros));
        }

        return new DERSequence(v);
    }
}