- java.lang.Object
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- java.security.spec.EncodedKeySpec
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- All Implemented Interfaces:
KeySpec
- Direct Known Subclasses:
PKCS8EncodedKeySpec,X509EncodedKeySpec
public abstract class EncodedKeySpec extends Object implements KeySpec
This class represents a public or private key in encoded format.- Since:
- 1.2
- See Also:
Key,KeyFactory,KeySpec,X509EncodedKeySpec,PKCS8EncodedKeySpec
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Constructor Summary
Constructors Modifier Constructor Description EncodedKeySpec(byte[] encodedKey)Creates a newEncodedKeySpecwith the given encoded key.protectedEncodedKeySpec(byte[] encodedKey, String algorithm)Creates a newEncodedKeySpecwith the given encoded key.
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description StringgetAlgorithm()Returns the name of the algorithm of the encoded key.byte[]getEncoded()Returns the encoded key.abstract StringgetFormat()Returns the name of the encoding format associated with this key specification.
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Constructor Detail
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EncodedKeySpec
public EncodedKeySpec(byte[] encodedKey)
Creates a newEncodedKeySpecwith the given encoded key.- Parameters:
encodedKey- the encoded key. The contents of the array are copied to protect against subsequent modification.- Throws:
NullPointerException- ifencodedKeyis null.
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EncodedKeySpec
protected EncodedKeySpec(byte[] encodedKey, String algorithm)Creates a newEncodedKeySpecwith the given encoded key. This constructor is useful when subsequent callers of theEncodedKeySpecobject might not know the algorithm of the key.- Parameters:
encodedKey- the encoded key. The contents of the array are copied to protect against subsequent modification.algorithm- the algorithm name of the encoded key See the KeyFactory section in the Java Security Standard Algorithm Names Specification for information about standard algorithm names.- Throws:
NullPointerException- ifencodedKeyoralgorithmis null.IllegalArgumentException- ifalgorithmis the empty string""- Since:
- 9
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Method Detail
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getAlgorithm
public String getAlgorithm()
Returns the name of the algorithm of the encoded key.- Returns:
- the name of the algorithm, or null if not specified
- Since:
- 9
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getEncoded
public byte[] getEncoded()
Returns the encoded key.- Returns:
- the encoded key. Returns a new array each time this method is called.
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getFormat
public abstract String getFormat()
Returns the name of the encoding format associated with this key specification.If the opaque representation of a key (see
Key) can be transformed (seeKeyFactory) into this key specification (or a subclass of it),getFormatcalled on the opaque key returns the same value as thegetFormatmethod of this key specification.- Returns:
- a string representation of the encoding format.
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