DERNumericString.java
资源名称:security.rar [点击查看]
上传用户:lior1029
上传日期:2013-05-07
资源大小:209k
文件大小:3k
源码类别:
CA认证
开发平台:
Java
- package org.bouncycastle.asn1;
- import java.io.*;
- /**
- * DER NumericString object - this is an ascii string of characters {0,1,2,3,4,5,6,7,8,9, }.
- */
- public class DERNumericString
- extends DERObject
- implements DERString
- {
- String string;
- /**
- * return a Numeric string from the passed in object
- *
- * @exception IllegalArgumentException if the object cannot be converted.
- */
- public static DERNumericString getInstance(
- Object obj)
- {
- if (obj == null || obj instanceof DERNumericString)
- {
- return (DERNumericString)obj;
- }
- if (obj instanceof ASN1OctetString)
- {
- return new DERNumericString(((ASN1OctetString)obj).getOctets());
- }
- if (obj instanceof ASN1TaggedObject)
- {
- return getInstance(((ASN1TaggedObject)obj).getObject());
- }
- throw new IllegalArgumentException("illegal object in getInstance: " + obj.getClass().getName());
- }
- /**
- * return an Numeric String from a tagged object.
- *
- * @param obj the tagged object holding the object we want
- * @param explicit true if the object is meant to be explicitly
- * tagged false otherwise.
- * @exception IllegalArgumentException if the tagged object cannot
- * be converted.
- */
- public static DERNumericString getInstance(
- ASN1TaggedObject obj,
- boolean explicit)
- {
- return getInstance(obj.getObject());
- }
- /**
- * basic constructor - with bytes.
- */
- public DERNumericString(
- byte[] string)
- {
- char[] cs = new char[string.length];
- for (int i = 0; i != cs.length; i++)
- {
- cs[i] = (char)(string[i] & 0xff);
- }
- this.string = new String(cs);
- }
- /**
- * basic constructor - with string.
- */
- public DERNumericString(
- String string)
- {
- this.string = string;
- }
- public String getString()
- {
- return string;
- }
- public byte[] getOctets()
- {
- char[] cs = string.toCharArray();
- byte[] bs = new byte[cs.length];
- for (int i = 0; i != cs.length; i++)
- {
- bs[i] = (byte)cs[i];
- }
- return bs;
- }
- void encode(
- DEROutputStream out)
- throws IOException
- {
- out.writeEncoded(NUMERIC_STRING, this.getOctets());
- }
- public int hashCode()
- {
- return this.getString().hashCode();
- }
- public boolean equals(
- Object o)
- {
- if (!(o instanceof DERNumericString))
- {
- return false;
- }
- DERNumericString s = (DERNumericString)o;
- return this.getString().equals(s.getString());
- }
- }