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EncodedKeySpec.java
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85 lines (78 loc) · 1.78 KB
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/*
* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package java.security.spec;
/**
* This class represents a public or private key in encoded format.
*
* @author Jan Luehe
*
*
* @see java.security.Key
* @see java.security.KeyFactory
* @see KeySpec
* @see X509EncodedKeySpec
* @see PKCS8EncodedKeySpec
*
* @since 1.2
*/
public abstract class EncodedKeySpec implements KeySpec {
private byte[] encodedKey;
/**
* Creates a new EncodedKeySpec with the given encoded key.
*
* @param encodedKey the encoded key. The contents of the
* array are copied to protect against subsequent modification.
* @exception NullPointerException if {@code encodedKey}
* is null.
*/
public EncodedKeySpec(byte[] encodedKey) {
this.encodedKey = encodedKey.clone();
}
/**
* Returns the encoded key.
*
* @return the encoded key. Returns a new array each time
* this method is called.
*/
public byte[] getEncoded() {
return this.encodedKey.clone();
}
/**
* Returns the name of the encoding format associated with this
* key specification.
*
* <p>If the opaque representation of a key
* (see {@link java.security.Key Key}) can be transformed
* (see {@link java.security.KeyFactory KeyFactory})
* into this key specification (or a subclass of it),
* {@code getFormat} called
* on the opaque key returns the same value as the
* {@code getFormat} method
* of this key specification.
*
* @return a string representation of the encoding format.
*/
public abstract String getFormat();
}