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CAST5CBCParameters.java：源码内容

							package org.bouncycastle.asn1.misc;
import org.bouncycastle.asn1.*;
public class CAST5CBCParameters
    implements DEREncodable
{
    DERInteger      keyLength;
    ASN1OctetString iv;
    public static CAST5CBCParameters getInstance(
        Object  o)
    {
        if (o instanceof CAST5CBCParameters)
        {
            return (CAST5CBCParameters)o;
        }
        else if (o instanceof ASN1Sequence)
        {
            return new CAST5CBCParameters((ASN1Sequence)o);
        }
        throw new IllegalArgumentException("unknown object in CAST5CBCParameter factory");
    }
    public CAST5CBCParameters(
        byte[]  iv,
        int     keyLength)
    {
        this.iv = new DEROctetString(iv);
        this.keyLength = new DERInteger(keyLength);
    }
    public CAST5CBCParameters(
        ASN1Sequence  seq)
    {
        iv = (ASN1OctetString)seq.getObjectAt(0);
        keyLength = (DERInteger)seq.getObjectAt(1);
    }
    public byte[] getIV()
    {
        return iv.getOctets();
    }
    public int getKeyLength()
    {
        return keyLength.getValue().intValue();
    }
    /**
     * <pre>
     * cast5CBCParameters ::= SEQUENCE {
     *                           iv         OCTET STRING DEFAULT 0,
     *                                  -- Initialization vector
     *                           keyLength  INTEGER
     *                                  -- Key length, in bits
     *                      }
     * </pre>
     */
    public DERObject getDERObject()
    {
        ASN1EncodableVector  v = new ASN1EncodableVector();
        v.add(iv);
        v.add(keyLength);
        return new DERSequence(v);
    }
}

						