X509EncodedKeySpec

AI-generated Key Takeaways

• X509EncodedKeySpec represents the ASN.1 encoding of a public key, adhering to the X.509 standard's SubjectPublicKeyInfo structure.

• It provides methods to retrieve the encoded key bytes and the encoding format, which is "X.509".

• The constructor initializes the X509EncodedKeySpec with the encoded public key, copying the provided byte array for security.

• It inherits methods from EncodedKeySpec and Object for functionality like getting the encoded key and basic object operations.

public class X509EncodedKeySpec extends EncodedKeySpec

This class represents the ASN.1 encoding of a public key, encoded according to the ASN.1 type SubjectPublicKeyInfo. The SubjectPublicKeyInfo syntax is defined in the X.509 standard as follows:

 SubjectPublicKeyInfo ::= SEQUENCE {
   algorithm AlgorithmIdentifier,
   subjectPublicKey BIT STRING }
 

See Also

• Key
• KeyFactory
• KeySpec
• EncodedKeySpec
• PKCS8EncodedKeySpec

Public Constructor Summary

X509EncodedKeySpec(byte[] encodedKey) Creates a new X509EncodedKeySpec with the given encoded key.

Public Method Summary

byte[]	getEncoded() Returns the key bytes, encoded according to the X.509 standard.
final String	getFormat() Returns the name of the encoding format associated with this key specification.

Inherited Method Summary

From class java.security.spec.EncodedKeySpec

byte[]	getEncoded() Returns the encoded key.
abstract String	getFormat() Returns the name of the encoding format associated with this key specification.

From class java.lang.Object

Object	clone() Creates and returns a copy of this Object.
boolean	equals(Object obj) Compares this instance with the specified object and indicates if they are equal.
void	finalize() Invoked when the garbage collector has detected that this instance is no longer reachable.
final Class<?>	getClass() Returns the unique instance of Class that represents this object's class.
int	hashCode() Returns an integer hash code for this object.
final void	notify() Causes a thread which is waiting on this object's monitor (by means of calling one of the wait() methods) to be woken up.
final void	notifyAll() Causes all threads which are waiting on this object's monitor (by means of calling one of the wait() methods) to be woken up.
String	toString() Returns a string containing a concise, human-readable description of this object.
final void	wait(long timeout, int nanos) Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the specified timeout expires.
final void	wait(long timeout) Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the specified timeout expires.
final void	wait() Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object.

Public Constructors

public X509EncodedKeySpec (byte[] encodedKey)

Creates a new X509EncodedKeySpec with the given encoded key.

Parameters

encodedKey	the key, which is assumed to be encoded according to the X.509 standard. The contents of the array are copied to protect against subsequent modification.

Throws

NullPointerException	if encodedKey is null.

Public Methods

public byte[] getEncoded ()

Returns the key bytes, encoded according to the X.509 standard.

Returns

• the X.509 encoding of the key. Returns a new array each time this method is called.

public final String getFormat ()

Returns the name of the encoding format associated with this key specification.

Returns

• the string "X.509".