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Class Signer

java.lang.Object
java.security.Identity
java.security.Signer
All Implemented Interfaces:
Serializable, Principal
@Deprecated(since="1.2", forRemoval=true) public abstract class Signer extends Identity
Deprecated, for removal: This API element is subject to removal in a future version.
This class is deprecated and subject to removal in a future version of Java SE. It has been replaced by java.security.KeyStore, the java.security.cert package, and java.security.Principal.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.

Since:
1.1
See Also:
  • Identity
  • Serialized Form

Constructor Summary

Signer()
Signer(String name)
Signer(String name, IdentityScope scope)
Modifier Constructor Description
protected
Deprecated, for removal: This API element is subject to removal in a future version.
Creates a Signer.
Deprecated, for removal: This API element is subject to removal in a future version.
Creates a Signer with the specified identity name.
Deprecated, for removal: This API element is subject to removal in a future version.
Creates a Signer with the specified identity name and scope.

Method Summary

Modifier and Type Method Description
PrivateKey getPrivateKey()
Deprecated, for removal: This API element is subject to removal in a future version.
Returns this signer's private key.
final void setKeyPair(KeyPair pair)
Deprecated, for removal: This API element is subject to removal in a future version.
Sets the key pair (public key and private key) for this Signer.
String toString()
Deprecated, for removal: This API element is subject to removal in a future version.
Returns a string of information about the Signer.

Methods declared in class Identity

addCertificate, certificates, equals, getInfo, getName, getPublicKey, getScope, hashCode, identityEquals, removeCertificate, setInfo, setPublicKey, toString

Methods declared in class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods declared in interface Principal

implies

Constructor Details

Signer

protected Signer()
Deprecated, for removal: This API element is subject to removal in a future version.
Creates a Signer. This constructor should only be used for serialization.

Signer

public Signer(String name)
Deprecated, for removal: This API element is subject to removal in a future version.
Creates a Signer with the specified identity name.
Parameters:
name - the identity name.

Signer

public Signer(String name, IdentityScope scope) throws KeyManagementException
Deprecated, for removal: This API element is subject to removal in a future version.
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.

Method Details

getPrivateKey

public PrivateKey getPrivateKey()
Deprecated, for removal: This API element is subject to removal in a future version.
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
Deprecated, for removal: This API element is subject to removal in a future version.
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.
KeyException - if the key pair cannot be set for any other reason.

toString

public String toString()
Deprecated, for removal: This API element is subject to removal in a future version.
Returns a string of information about the Signer.
Specified by:
toString in interface Principal
Overrides:
toString in class Identity
Returns:
a string of information about the Signer.

Report a bug or suggest an enhancement
For further API reference and developer documentation see the Java SE Documentation, which contains more detailed, developer-targeted descriptions with conceptual overviews, definitions of terms, workarounds, and working code examples. Other versions.
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All rights reserved. Use is subject to license terms and the documentation redistribution policy.

© 1993, 2025, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/security/Signer.html

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