SMIMECapability.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.smime;
- import org.bouncycastle.asn1.ASN1Sequence;
- import org.bouncycastle.asn1.DERSequence;
- import org.bouncycastle.asn1.DEREncodable;
- import org.bouncycastle.asn1.DEREncodableVector;
- import org.bouncycastle.asn1.DERObject;
- import org.bouncycastle.asn1.DERObjectIdentifier;
- import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers;
- public class SMIMECapability
- implements DEREncodable
- {
- /**
- * general preferences
- */
- public static final DERObjectIdentifier preferSignedData = PKCSObjectIdentifiers.preferSignedData;
- public static final DERObjectIdentifier canNotDecryptAny = PKCSObjectIdentifiers.canNotDecryptAny;
- public static final DERObjectIdentifier sMIMECapabilitiesVersions = PKCSObjectIdentifiers.sMIMECapabilitiesVersions;
- /**
- * encryption algorithms preferences
- */
- public static final DERObjectIdentifier dES_CBC = new DERObjectIdentifier("1.3.14.3.2.7");
- public static final DERObjectIdentifier dES_EDE3_CBC = PKCSObjectIdentifiers.des_EDE3_CBC;
- public static final DERObjectIdentifier rC2_CBC = PKCSObjectIdentifiers.RC2_CBC;
- private DERObjectIdentifier capabilityID;
- private DEREncodable parameters;
- public SMIMECapability(
- ASN1Sequence seq)
- {
- capabilityID = (DERObjectIdentifier)seq.getObjectAt(0);
- if (seq.size() > 1)
- {
- parameters = (DERObject)seq.getObjectAt(1);
- }
- }
- public SMIMECapability(
- DERObjectIdentifier capabilityID,
- DEREncodable parameters)
- {
- this.capabilityID = capabilityID;
- this.parameters = parameters;
- }
- public static SMIMECapability getInstance(
- Object obj)
- {
- if (obj == null || obj instanceof SMIMECapability)
- {
- return (SMIMECapability)obj;
- }
- if (obj instanceof ASN1Sequence)
- {
- return new SMIMECapability((ASN1Sequence)obj);
- }
- throw new IllegalArgumentException("Invalid SMIMECapability");
- }
- public DERObjectIdentifier getCapabilityID()
- {
- return capabilityID;
- }
- public DEREncodable getParameters()
- {
- return parameters;
- }
- /**
- * <pre>
- * SMIMECapability ::= SEQUENCE {
- * capabilityID OBJECT IDENTIFIER,
- * parameters ANY DEFINED BY capabilityID OPTIONAL
- * }
- * </pre>
- */
- public DERObject getDERObject()
- {
- DEREncodableVector v = new DEREncodableVector();
- v.add(capabilityID);
- if (parameters != null)
- {
- v.add(parameters);
- }
- return new DERSequence(v);
- }
- }