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Java Standard Edition (SE)

Certificate


compact1, compact2, compact3
java.security

Interface Certificate


  • Deprecated. 
    A new certificate handling package is created in the Java platform. This Certificate interface is entirely deprecated and is here to allow for a smooth transition to the new package.

    @Deprecated
    public interface Certificate

    This is an interface of abstract methods for managing a variety of identity certificates. An identity certificate is a guarantee by a principal that a public key is that of another principal. (A principal represents an entity such as an individual user, a group, or a corporation.)

    In particular, this interface is intended to be a common abstraction for constructs that have different formats but important common uses. For example, different types of certificates, such as X.509 certificates and PGP certificates, share general certificate functionality (the need to encode and decode certificates) and some types of information, such as a public key, the principal whose key it is, and the guarantor guaranteeing that the public key is that of the specified principal. So an implementation of X.509 certificates and an implementation of PGP certificates can both utilize the Certificate interface, even though their formats and additional types and amounts of information stored are different.

    Important: This interface is useful for cataloging and grouping objects sharing certain common uses. It does not have any semantics of its own. In particular, a Certificate object does not make any statement as to the validity of the binding. It is the duty of the application implementing this interface to verify the certificate and satisfy itself of its validity.

    See Also:
    Certificate
    • Method Summary

      All Methods Instance Methods Abstract Methods Deprecated Methods 
      Modifier and Type Method and Description
      void decode(InputStream stream)
      Deprecated. 
      Decodes a certificate from an input stream.
      void encode(OutputStream stream)
      Deprecated. 
      Encodes the certificate to an output stream in a format that can be decoded by the decode method.
      String getFormat()
      Deprecated. 
      Returns the name of the coding format.
      Principal getGuarantor()
      Deprecated. 
      Returns the guarantor of the certificate, that is, the principal guaranteeing that the public key associated with this certificate is that of the principal associated with this certificate.
      Principal getPrincipal()
      Deprecated. 
      Returns the principal of the principal-key pair being guaranteed by the guarantor.
      PublicKey getPublicKey()
      Deprecated. 
      Returns the key of the principal-key pair being guaranteed by the guarantor.
      String toString(boolean detailed)
      Deprecated. 
      Returns a string that represents the contents of the certificate.
    • Method Detail

      • getGuarantor

        Principal getGuarantor()
        Deprecated. 
        Returns the guarantor of the certificate, that is, the principal guaranteeing that the public key associated with this certificate is that of the principal associated with this certificate. For X.509 certificates, the guarantor will typically be a Certificate Authority (such as the United States Postal Service or Verisign, Inc.).
        Returns:
        the guarantor which guaranteed the principal-key binding.
      • getPrincipal

        Principal getPrincipal()
        Deprecated. 
        Returns the principal of the principal-key pair being guaranteed by the guarantor.
        Returns:
        the principal to which this certificate is bound.
      • getPublicKey

        PublicKey getPublicKey()
        Deprecated. 
        Returns the key of the principal-key pair being guaranteed by the guarantor.
        Returns:
        the public key that this certificate certifies belongs to a particular principal.
      • encode

        void encode(OutputStream stream)
             throws KeyException,
                    IOException
        Deprecated. 
        Encodes the certificate to an output stream in a format that can be decoded by the decode method.
        Parameters:
        stream - the output stream to which to encode the certificate.
        Throws:
        KeyException - if the certificate is not properly initialized, or data is missing, etc.
        IOException - if a stream exception occurs while trying to output the encoded certificate to the output stream.
        See Also:
        decode(java.io.InputStream), getFormat()
      • decode

        void decode(InputStream stream)
             throws KeyException,
                    IOException
        Deprecated. 
        Decodes a certificate from an input stream. The format should be that returned by getFormat and produced by encode.
        Parameters:
        stream - the input stream from which to fetch the data being decoded.
        Throws:
        KeyException - if the certificate is not properly initialized, or data is missing, etc.
        IOException - if an exception occurs while trying to input the encoded certificate from the input stream.
        See Also:
        encode(java.io.OutputStream), getFormat()
      • getFormat

        String getFormat()
        Deprecated. 
        Returns the name of the coding format. This is used as a hint to find an appropriate parser. It could be "X.509", "PGP", etc. This is the format produced and understood by the encode and decode methods.
        Returns:
        the name of the coding format.
      • toString

        String toString(boolean detailed)
        Deprecated. 
        Returns a string that represents the contents of the certificate.
        Parameters:
        detailed - whether or not to give detailed information about the certificate
        Returns:
        a string representing the contents of the certificate


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