File	Doc	Category	Size	Date	Package
Certificate.java	API Doc	Java SE 5 API	7968	Fri Aug 26 14:57:16 BST 2005	java.security.cert

Certificate

• java.lang.Object

Fields Summary
private static final long	serialVersionUID
private final String	type

Constructors Summary
protected Certificate(String type) Creates a certificate of the specified type. param type the standard name of the certificate type. See Appendix A in the Java Cryptography Architecture API Specification & Reference for information about standard certificate types. this.type = type;

Methods Summary
public boolean	equals(java.lang.Object other) Compares this certificate for equality with the specified object. If the other object is an instanceof Certificate, then its encoded form is retrieved and compared with the encoded form of this certificate. param other the object to test for equality with this certificate. return true iff the encoded forms of the two certificates match, false otherwise. if (this == other) { return true; } if (!(other instanceof Certificate)) { return false; } try { byte[] thisCert = X509CertImpl.getEncodedInternal(this); byte[] otherCert = X509CertImpl.getEncodedInternal((Certificate)other); return Arrays.equals(thisCert, otherCert); } catch (CertificateException e) { return false; }
public abstract byte[]	getEncoded() Returns the encoded form of this certificate. It is assumed that each certificate type would have only a single form of encoding; for example, X.509 certificates would be encoded as ASN.1 DER. return the encoded form of this certificate exception CertificateEncodingException if an encoding error occurs.
public abstract java.security.PublicKey	getPublicKey() Gets the public key from this certificate. return the public key.
public final java.lang.String	getType() Returns the type of this certificate. return the type of this certificate. return this.type;
public int	hashCode() Returns a hashcode value for this certificate from its encoded form. return the hashcode value. int retval = 0; try { byte[] certData = X509CertImpl.getEncodedInternal(this); for (int i = 1; i < certData.length; i++) { retval += certData[i] * i; } return retval; } catch (CertificateException e) { return retval; }
public abstract java.lang.String	toString() Returns a string representation of this certificate. return a string representation of this certificate.
public abstract void	verify(java.security.PublicKey key) Verifies that this certificate was signed using the private key that corresponds to the specified public key. param key the PublicKey used to carry out the verification. exception NoSuchAlgorithmException on unsupported signature algorithms. exception InvalidKeyException on incorrect key. exception NoSuchProviderException if there's no default provider. exception SignatureException on signature errors. exception CertificateException on encoding errors.
public abstract void	verify(java.security.PublicKey key, java.lang.String sigProvider) Verifies that this certificate was signed using the private key that corresponds to the specified public key. This method uses the signature verification engine supplied by the specified provider. param key the PublicKey used to carry out the verification. param sigProvider the name of the signature provider. exception NoSuchAlgorithmException on unsupported signature algorithms. exception InvalidKeyException on incorrect key. exception NoSuchProviderException on incorrect provider. exception SignatureException on signature errors. exception CertificateException on encoding errors.
protected java.lang.Object	writeReplace() Replace the Certificate to be serialized. return the alternate Certificate object to be serialized throws java.io.ObjectStreamException if a new object representing this Certificate could not be created try { return new CertificateRep(type, getEncoded()); } catch (CertificateException e) { throw new java.io.NotSerializableException ("java.security.cert.Certificate: " + type + ": " + e.getMessage()); }