KeyUsage.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:2k
源码类别:
CA认证
开发平台:
Java
- package org.bouncycastle.asn1.x509;
- import org.bouncycastle.asn1.*;
- /**
- * <pre>
- * id-ce-keyUsage OBJECT IDENTIFIER ::= { id-ce 15 }
- *
- * KeyUsage ::= BIT STRING {
- * digitalSignature (0),
- * nonRepudiation (1),
- * keyEncipherment (2),
- * dataEncipherment (3),
- * keyAgreement (4),
- * keyCertSign (5),
- * cRLSign (6),
- * encipherOnly (7),
- * decipherOnly (8) }
- * </pre>
- */
- public class KeyUsage
- extends DERBitString
- {
- public static final int digitalSignature = (1 << 7);
- public static final int nonRepudiation = (1 << 6);
- public static final int keyEncipherment = (1 << 5);
- public static final int dataEncipherment = (1 << 4);
- public static final int keyAgreement = (1 << 3);
- public static final int keyCertSign = (1 << 2);
- public static final int cRLSign = (1 << 1);
- public static final int encipherOnly = (1 << 0);
- public static final int decipherOnly = (1 << 15);
- /**
- * Basic constructor.
- *
- * @param usage - the bitwise OR of the Key Usage flags giving the
- * allowed uses for the key.
- * e.g. (X509KeyUsage.keyEncipherment | X509KeyUsage.dataEncipherment)
- */
- public KeyUsage(
- int usage)
- {
- super(getBytes(usage), getPadBits(usage));
- }
- public KeyUsage(
- DERBitString usage)
- {
- super(usage.getBytes(), usage.getPadBits());
- }
- public String toString()
- {
- return "KeyUsage: 0x" + Integer.toHexString(data[0] & 0xff);
- }
- }