File	Doc	Category	Size	Date	Package
Signer.java	API Doc	Java SE 5 API	4509	Fri Aug 26 14:57:16 BST 2005	java.security

Signer

• java.lang.Object
  • java.security.Identity

Fields Summary
private static final long	serialVersionUID
private PrivateKey	privateKey The signer's private key.

Constructors Summary
protected Signer() Creates a signer. This constructor should only be used for serialization. super();
public Signer(String name) Creates a signer with the specified identity name. param name the identity name. super(name);
public Signer(String name, IdentityScope scope) Creates a signer with the specified identity name and scope. param name the identity name. param scope the scope of the identity. exception KeyManagementException if there is already an identity with the same name in the scope. super(name, scope);

Methods Summary
private static void	check(java.lang.String directive) SecurityManager security = System.getSecurityManager(); if (security != null) { security.checkSecurityAccess(directive); }
public java.security.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. return this signer's private key, or null if the private key has not yet been set. exception SecurityException if a security manager exists and its checkSecurityAccess method doesn't allow returning the private key. see SecurityManager#checkSecurityAccess check("getSignerPrivateKey"); return privateKey;
java.lang.String	printKeys() String keys = ""; PublicKey publicKey = getPublicKey(); if (publicKey != null && privateKey != null) { keys = "\tpublic and private keys initialized"; } else { keys = "\tno keys"; } return keys;
public final void	setKeyPair(java.security.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. param pair an initialized key pair. exception InvalidParameterException if the key pair is not properly initialized. exception KeyException if the key pair cannot be set for any other reason. exception SecurityException if a security manager exists and its checkSecurityAccess method doesn't allow setting the key pair. see SecurityManager#checkSecurityAccess check("setSignerKeyPair"); final PublicKey pub = pair.getPublic(); PrivateKey priv = pair.getPrivate(); if (pub == null || priv == null) { throw new InvalidParameterException(); } try { AccessController.doPrivileged(new PrivilegedExceptionAction() { public Object run() throws KeyManagementException { setPublicKey(pub); return null; } }); } catch (PrivilegedActionException pae) { throw (KeyManagementException) pae.getException(); } privateKey = priv;
public java.lang.String	toString() Returns a string of information about the signer. return a string of information about the signer. return "[Signer]" + super.toString();