程序包 java.security

类 KeyRep

java.lang.Object

java.security.KeyRep

所有已实现的接口:

Serializable

public class KeyRep
extends Object
implements Serializable

Standardized representation for serialized Key objects.

Note that a serialized Key may contain sensitive information which should not be exposed in untrusted environments. See the Security Appendix of the Serialization Specification for more information.

从以下版本开始:

1.5

另请参阅:

Key, KeyFactory, SecretKeySpec, X509EncodedKeySpec, PKCS8EncodedKeySpec, 序列化表格

嵌套类概要

嵌套类

限定符和类型	类	说明
static class	KeyRep.Type	Key type.

构造器概要

构造器

构造器	说明
KeyRep(KeyRep.Type type, String algorithm, String format, byte[] encoded)	Construct the alternate Key class.

方法概要

限定符和类型	方法	说明
protected Object	readResolve()	Resolve the Key object.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

KeyRep

public KeyRep(KeyRep.Type type,
              String algorithm,
              String format,
              byte[] encoded)

Construct the alternate Key class.

参数:

type - either one of Type.SECRET, Type.PUBLIC, or Type.PRIVATE

algorithm - the algorithm returned from Key.getAlgorithm()

format - the encoding format returned from Key.getFormat()

encoded - the encoded bytes returned from Key.getEncoded()

抛出:

NullPointerException - if type is null, if algorithm is null, if format is null, or if encoded is null

方法详细资料

readResolve

protected Object readResolve()
                      throws ObjectStreamException

Resolve the Key object.

This method supports three Type/format combinations:

• Type.SECRET/"RAW" - returns a SecretKeySpec object constructed using encoded key bytes and algorithm
• Type.PUBLIC/"X.509" - gets a KeyFactory instance for the key algorithm, constructs an X509EncodedKeySpec with the encoded key bytes, and generates a public key from the spec
• Type.PRIVATE/"PKCS#8" - gets a KeyFactory instance for the key algorithm, constructs a PKCS8EncodedKeySpec with the encoded key bytes, and generates a private key from the spec

返回:

the resolved Key object

抛出:

ObjectStreamException - if the Type/format combination is unrecognized, if the algorithm, key format, or encoded key bytes are unrecognized/invalid, of if the resolution of the key fails for any reason