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Class java.security.Signer

java.lang.Object
   |
   +----java.security.Identity
           |
           +----java.security.Signer

public abstract class Signer
extends Identity

This class is used to represent an Identity that can also digitally sign data.

The management of a signer's private keys is an important and sensitive issue that should be handled by subclasses as appropriate to their intended use.

See Also:
Identity

Constructor Index

Signer()
Creates a signer.
Signer(String)
Creates a signer with the specified identity name.
Signer(String, IdentityScope)
Creates a signer with the specified identity name and scope.

Method Index

getPrivateKey()
Returns this signer's private key.
setKeyPair(KeyPair)
Sets the key pair (public key and private key) for this signer.
toString()
Returns a string of information about the signer.

Constructors

Signer
 protected Signer()
Creates a signer. This constructor should only be used for serialization.

Signer
 public Signer(String name)
Creates a signer with the specified identity name.

Parameters:
name - the identity name.
Signer
 public Signer(String name,
               IdentityScope scope) throws KeyManagementException
Creates a signer with the specified identity name and scope.

Parameters:
name - the identity name.
scope - the scope of the identity.
Throws: KeyManagementException
if there is already an identity with the same name in the scope.

Methods

getPrivateKey
 public PrivateKey getPrivateKey()
Returns this signer's private key.

Returns:
this signer's private key, or null if the private key has not yet been set.
setKeyPair
 public final void setKeyPair(KeyPair pair) throws InvalidParameterException, KeyException
Sets the key pair (public key and private key) for this signer.

Parameters:
pair - an initialized key pair.
Throws: InvalidParameterException
if the key pair is not properly initialized.
Throws: KeyException
if the key pair cannot be set for any other reason.
toString
 public String toString()
Returns a string of information about the signer.

Returns:
a string of information about the signer.
Overrides:
toString in class Identity

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