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Class java.security.PublicKey

java.lang.Object
   |
   +----java.security.Key
           |
           +----java.security.PublicKey

public class PublicKey

extends Key

A public key. The recommended format is X.509.

See Also:

Key, KeyParams, PrivateKey, Certificate, initVerify

PublicKey()

Constructs an uninitialized public key for serialization.

PublicKey(byte[])

Constructs a generic public key encoded using the X.509 format.

PublicKey(byte[], String)

Constructs a public key encoded using a known format.

PublicKey(byte[], String, String)

Constructs a public key, for a known algorithm, encoded using a a known encoding format.

getClassName(String, String)

Given an algorithm name and the name of an encoding format, returns the name of a PublicKey class using the specified format and capable of handling keys for that algorithm.

getEncoded()

Returns the encoded public key.

  protected PublicKey()

Constructs an uninitialized public key for serialization.

  public PublicKey(byte encodedKey[])

Constructs a generic public key encoded using the X.509 format.

  public PublicKey(byte encodedKey[],
                   String format)

Constructs a public key encoded using a known format.

Parameters:

encodedKey - the key, encoded using format.

format - the format used to encode the key.

  public PublicKey(byte encodedKey[],
                   String format,
                   String algorithm)

Constructs a public key, for a known algorithm, encoded using a a known encoding format.

Parameters:

encodedKey - the key, encoded using format.

format - the format used to encode the key.

algorithm - the name of the algorithm for this key.

  protected static String getClassName(String algName,
                                       String format)

Given an algorithm name and the name of an encoding format, returns the name of a PublicKey class using the specified format and capable of handling keys for that algorithm. The algorithm name may be an alias or a standard name. See algorithm names for information about standard algorithm names. Note that the class may not necessarily be accessible to a given caller.

Parameters:

algName - the algorithm name corresponding to the class name requested.

format - the requested encoding format.

  public final byte[] getEncoded() throws InvalidKeyException

Returns the encoded public key. Note that this method is public since it's for public keys.

Returns:

the encoded public key.

Throws: InvalidKeyException

if the public key cannot be encoded, for example if the original encoding was invalid, or if the key was not properly initialized.

Overrides:

getEncoded in class Key

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