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Signer

public abstract class Signer
extends Identity

java.lang.Object
↳	java.security.Identity
	↳	java.security.Signer

This class is deprecated.
This class is no longer used. Its functionality has been replaced by java.security.KeyStore, the java.security.cert package, and java.security.Principal.

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

Summary

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

Protected constructors
`Signer()` Creates a signer.

Public methods
`PrivateKey`	`getPrivateKey()` Returns this signer's private key.
`final void`	`setKeyPair(KeyPair pair)` Sets the key pair (public key and private key) for this signer.
`String`	`toString()` Returns a string of information about the signer.

Inherited methods

From class


        
          java.security.Identity

`void`	`addCertificate(Certificate certificate)` Adds a certificate for this identity.
`Certificate[]`	`certificates()` Returns a copy of all the certificates for this identity.
`final boolean`	`equals(Object identity)` Tests for equality between the specified object and this identity.
`String`	`getInfo()` Returns general information previously specified for this identity.
`final String`	`getName()` Returns this identity's name.
`PublicKey`	`getPublicKey()` Returns this identity's public key.
`final IdentityScope`	`getScope()` Returns this identity's scope.
`int`	`hashCode()` Returns a hashcode for this identity.
`boolean`	`identityEquals(Identity identity)` Tests for equality between the specified identity and this identity.
`void`	`removeCertificate(Certificate certificate)` Removes a certificate from this identity.
`void`	`setInfo(String info)` Specifies a general information string for this identity.
`void`	`setPublicKey(PublicKey key)` Sets this identity's public key.
`String`	`toString()` Returns a short string describing this identity, telling its name and its scope (if any).
`String`	`toString(boolean detailed)` Returns a string representation of this identity, with optionally more details than that provided by the `toString` method without any arguments.

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

From interface


        
          java.security.Principal

`abstract boolean`	`equals(Object another)` Compares this principal to the specified object.
`abstract String`	`getName()` Returns the name of this principal.
`abstract int`	`hashCode()` Returns a hashcode for this principal.
`default boolean`	`implies(Subject subject)` Returns true if the specified subject is implied by this principal.
`abstract String`	`toString()` Returns a string representation of this principal.

Public constructors

Signer

public Signer (String name)

Creates a signer with the specified identity name.

Parameters
`name`	`String`: the identity name.

Signer

public Signer (String name, 
                IdentityScope scope)

Creates a signer with the specified identity name and scope.

Parameters
`name`	`String`: the identity name.
`scope`	`IdentityScope`: the scope of the identity.

Throws
`KeyManagementException`	if there is already an identity with the same name in the scope.

Protected constructors

Signer

protected Signer ()

Creates a signer. This constructor should only be used for serialization.

Public methods

getPrivateKey

public PrivateKey getPrivateKey ()

Returns this signer's private key.

First, if there is a security manager, its checkSecurityAccess method is called with "getSignerPrivateKey" as its argument to see if it's ok to return the private key.

Returns
`PrivateKey`	this signer's private key, or null if the private key has not yet been set.

Throws
`SecurityException`	if a security manager exists and its `checkSecurityAccess` method doesn't allow returning the private key.

See also:

SecurityManager.checkSecurityAccess(String)

setKeyPair

public final void setKeyPair (KeyPair pair)

Sets the key pair (public key and private key) for this signer.

First, if there is a security manager, its checkSecurityAccess method is called with "setSignerKeyPair" as its argument to see if it's ok to set the key pair.

Parameters
`pair`	`KeyPair`: an initialized key pair.

Throws
`InvalidParameterException`	if the key pair is not properly initialized.
`KeyException`	if the key pair cannot be set for any other reason.
`SecurityException`	if a security manager exists and its `checkSecurityAccess` method doesn't allow setting the key pair.

See also:

SecurityManager.checkSecurityAccess(String)

toString

public String toString ()

Returns a string of information about the signer.

Returns
`String`	a string of information about the signer.

Interfaces

Classes

Enums

Exceptions

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Signer

Summary

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Public constructors

Signer

Signer

Protected constructors

Signer

Public methods

getPrivateKey

setKeyPair

toString