sun.security.x509

Class X509Cert

java.lang.Object

sun.security.x509.X509Cert

All Implemented Interfaces:

java.io.Serializable, java.security.Certificate

Deprecated.

Use the new X509Certificate class. This class is only restored for backwards compatibility.

@Deprecated
public class X509Cert
extends java.lang.Object
implements java.security.Certificate, java.io.Serializable

Author:

David Brownell

See Also:

CertAndKeyGen, Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected AlgorithmId	algid Deprecated.

Constructor Summary

Constructors

Constructor and Description
X509Cert() Deprecated. Construct a uninitialized X509 Cert on which decode must later be called (or which may be deserialized).
X509Cert(byte[] cert) Deprecated. Unmarshals a certificate from its encoded form, parsing the encoded bytes.
X509Cert(byte[] buf, int offset, int len) Deprecated. Unmarshals a certificate from its encoded form, parsing the encoded bytes.
X509Cert(DerValue derVal) Deprecated. Unmarshal a certificate from its encoded form, parsing a DER value.
X509Cert(X500Name subjectName, X509Key subjectPublicKey, java.util.Date notBefore, java.util.Date notAfter) Deprecated. Partially constructs a certificate from descriptive parameters.

Method Summary

Methods

Modifier and Type	Method and Description
void	decode(java.io.InputStream in) Deprecated. Decode an X.509 certificate from an input stream.
void	encode(java.io.OutputStream out) Deprecated. Appends the certificate to an output stream.
byte[]	encodeAndSign(java.math.BigInteger serial, X500Signer issuer) Deprecated. Creates an X.509 certificate, and signs it using the issuer passed (associating a signature algorithm and an X.500 name).
boolean	equals(java.lang.Object other) Deprecated. Compares two certificates.
boolean	equals(X509Cert src) Deprecated. Compares two certificates, returning false if any data differs between the two.
java.lang.String	getFormat() Deprecated. Returns the "X.509" format identifier.
java.security.Principal	getGuarantor() Deprecated. Returns getIssuerName
AlgorithmId	getIssuerAlgorithmId() Deprecated. Returns the algorithm used by the issuer to sign the certificate.
X500Name	getIssuerName() Deprecated. Returns the certificate issuer's X.500 distinguished name.
java.util.Date	getNotAfter() Deprecated. Returns the last time the certificate is valid.
java.util.Date	getNotBefore() Deprecated. Returns the first time the certificate is valid.
java.security.Principal	getPrincipal() Deprecated. Returns getSubjectName
java.security.PublicKey	getPublicKey() Deprecated. Returns the subject's public key.
java.math.BigInteger	getSerialNumber() Deprecated. Returns the certificate's serial number.
byte[]	getSignedCert() Deprecated. Return the signed X.509 certificate as a byte array.
X500Signer	getSigner(AlgorithmId algorithmId, java.security.PrivateKey privateKey) Deprecated. Returns an X500Signer that may be used to create signatures.
X500Name	getSubjectName() Deprecated. Returns the subject's X.500 distinguished name.
java.security.Signature	getVerifier(java.lang.String algorithm) Deprecated. Returns a signature object that may be used to verify signatures created using a specified signature algorithm and the public key contained in this certificate.
int	getVersion() Deprecated. Returns the X.509 version number of this certificate, zero based.
int	hashCode() Deprecated. Calculates a hash code value for the object.
java.lang.String	toString() Deprecated. Returns a printable representation of the certificate.
java.lang.String	toString(boolean detailed) Deprecated. Returns a printable representation of the certificate.
void	verify(java.security.PublicKey issuerPublicKey) Deprecated. Throws an exception if the certificate is invalid because it is now outside of the certificate's validity period, or because it was not signed using the verification key provided.

Methods inherited from class java.lang.Object

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

Field Detail

algid

protected transient AlgorithmId algid

Deprecated.

Constructor Detail

X509Cert

public X509Cert()

Deprecated.

Construct a uninitialized X509 Cert on which decode must later be called (or which may be deserialized).

X509Cert

public X509Cert(byte[] cert)
         throws java.io.IOException

Deprecated.

Unmarshals a certificate from its encoded form, parsing the encoded bytes. This form of constructor is used by agents which need to examine and use certificate contents. That is, this is one of the more commonly used constructors. Note that the buffer must include only a certificate, and no "garbage" may be left at the end. If you need to ignore data at the end of a certificate, use another constructor.

Parameters:

cert - the encoded bytes, with no terminatu (CONSUMED)

Throws:

java.io.IOException - when the certificate is improperly encoded.

X509Cert

public X509Cert(byte[] buf,
        int offset,
        int len)
         throws java.io.IOException

Deprecated.

Unmarshals a certificate from its encoded form, parsing the encoded bytes. This form of constructor is used by agents which need to examine and use certificate contents. That is, this is one of the most commonly used constructors.

Parameters:

buf - the buffer holding the encoded bytes

offset - the offset in the buffer where the bytes begin

len - how many bytes of certificate exist

Throws:

java.io.IOException - when the certificate is improperly encoded.

X509Cert

public X509Cert(DerValue derVal)
         throws java.io.IOException

Deprecated.

Unmarshal a certificate from its encoded form, parsing a DER value. This form of constructor is used by agents which need to examine and use certificate contents.

Parameters:

derVal - the der value containing the encoded cert.

Throws:

java.io.IOException - when the certificate is improperly encoded.

X509Cert

public X509Cert(X500Name subjectName,
        X509Key subjectPublicKey,
        java.util.Date notBefore,
        java.util.Date notAfter)
         throws CertException

Deprecated.

Partially constructs a certificate from descriptive parameters. This constructor may be used by Certificate Authority (CA) code, which later signs and encodes the certificate. Also, self-signed certificates serve as CA certificates, and are sometimes used as certificate requests.

Until the certificate has been signed and encoded, some of the mandatory fields in the certificate will not be available via accessor functions: the serial number, issuer name and signing algorithm, and of course the signed certificate. The fields passed to this constructor are available, and must be non-null.

Note that the public key being signed is generally independent of the signature algorithm being used. So for example Diffie-Hellman keys (which do not support signatures) can be placed in X.509 certificates when some other signature algorithm (e.g. DSS/DSA, or one of the RSA based algorithms) is used.

Parameters:

subjectName - the X.500 distinguished name being certified

subjectPublicKey - the public key being certified. This must be an "X509Key" implementing the "PublicKey" interface.

notBefore - the first time the certificate is valid

notAfter - the last time the certificate is valid

Throws:

CertException - if the public key is inappropriate

See Also:

CertAndKeyGen

Method Detail

decode

public void decode(java.io.InputStream in)
            throws java.io.IOException

Deprecated.

Decode an X.509 certificate from an input stream.

Specified by:

decode in interface java.security.Certificate

Parameters:

in - an input stream holding at least one certificate

Throws:

java.io.IOException - when the certificate is improperly encoded, or if it has already been parsed.

encode

public void encode(java.io.OutputStream out)
            throws java.io.IOException

Deprecated.

Appends the certificate to an output stream.

Specified by:

encode in interface java.security.Certificate

Parameters:

out - an input stream to which the certificate is appended.

Throws:

java.io.IOException - when appending fails.

equals

public boolean equals(java.lang.Object other)

Deprecated.

Compares two certificates. This is false if the certificates are not both X.509 certs, otherwise it compares them as binary data.

Overrides:

equals in class java.lang.Object

Parameters:

other - the object being compared with this one

Returns:

true iff the certificates are equivalent

equals

public boolean equals(X509Cert src)

Deprecated.

Compares two certificates, returning false if any data differs between the two.

Parameters:

other - the object being compared with this one

Returns:

true iff the certificates are equivalent

getFormat

public java.lang.String getFormat()

Deprecated.

Returns the "X.509" format identifier.

Specified by:

getFormat in interface java.security.Certificate

getGuarantor

public java.security.Principal getGuarantor()

Deprecated.

Returns getIssuerName

Specified by:

getGuarantor in interface java.security.Certificate

getPrincipal

public java.security.Principal getPrincipal()

Deprecated.

Returns getSubjectName

Specified by:

getPrincipal in interface java.security.Certificate

verify

public void verify(java.security.PublicKey issuerPublicKey)
            throws CertException

Deprecated.

Throws an exception if the certificate is invalid because it is now outside of the certificate's validity period, or because it was not signed using the verification key provided. Successfully verifying a certificate does not indicate that one should trust the entity which it represents.

Note that since this class represents only a single X.509 certificate, it cannot know anything about the certificate chain which is used to provide the verification key and to establish trust. Other code must manage and use those cert chains.

For now, you must walk the cert chain being used to verify any given cert. Start at the root, which is a self-signed certificate; verify it using the key inside the certificate. Then use that to verify the next certificate in the chain, issued by that CA. In this manner, verify each certificate until you reach the particular certificate you wish to verify. You should not use a certificate if any of the verification operations for its certificate chain were unsuccessful.

Parameters:

issuerPublicKey - the public key of the issuing CA

Throws:

CertException - when the certificate is not valid.

encodeAndSign

public byte[] encodeAndSign(java.math.BigInteger serial,
                   X500Signer issuer)
                     throws java.io.IOException,
                            java.security.SignatureException

Deprecated.

Creates an X.509 certificate, and signs it using the issuer passed (associating a signature algorithm and an X.500 name). This operation is used to implement the certificate generation functionality of a certificate authority.

Parameters:

serial - the serial number of the certificate (non-null)

issuer - the certificate issuer (CA) (non-null)

Returns:

the signed certificate, as returned by getSignedCert

Throws:

java.io.IOException - if any of the data could not be encoded, or when any mandatory data was omitted

java.security.SignatureException - on signing failures

See Also:

getSignedCert(), getSigner(sun.security.x509.AlgorithmId, java.security.PrivateKey), CertAndKeyGen

getSigner

public X500Signer getSigner(AlgorithmId algorithmId,
                   java.security.PrivateKey privateKey)
                     throws java.security.NoSuchAlgorithmException,
                            java.security.InvalidKeyException

Deprecated.

Returns an X500Signer that may be used to create signatures. Those signature may in turn be verified using this certificate (or a copy of it).

NOTE: If the private key is by itself capable of creating signatures, this fact may not be recognized at this time. Specifically, the case of DSS/DSA keys which get their algorithm parameters from higher in the certificate chain is not supportable without using an X509CertChain API, and there is no current support for other sources of algorithm parameters.

Parameters:

algorithm - the signature algorithm to be used. Note that a given public/private key pair may support several such algorithms.

privateKey - the private key used to create the signature, which must correspond to the public key in this certificate

Returns:

the Signer object

Throws:

java.security.NoSuchAlgorithmException - if the signature algorithm is not supported

java.security.InvalidKeyException - if either the key in the certificate, or the private key parameter, does not support the requested signature algorithm

getVerifier

public java.security.Signature getVerifier(java.lang.String algorithm)
                                    throws java.security.NoSuchAlgorithmException,
                                           java.security.InvalidKeyException

Deprecated.

Returns a signature object that may be used to verify signatures created using a specified signature algorithm and the public key contained in this certificate.

NOTE: If the public key in this certificate is not by itself capable of verifying signatures, this may not be recognized at this time. Specifically, the case of DSS/DSA keys which get their algorithm parameters from higher in the certificate chain is not supportable without using an X509CertChain API, and there is no current support for other sources of algorithm parameters.

Parameters:

algorithm - the algorithm of the signature to be verified

Returns:

the Signature object

Throws:

java.security.NoSuchAlgorithmException - if the signature algorithm is not supported

java.security.InvalidKeyException - if the key in the certificate does not support the requested signature algorithm

getSignedCert

public byte[] getSignedCert()

Deprecated.

Return the signed X.509 certificate as a byte array. The bytes are in standard DER marshaled form. Null is returned in the case of a partially constructed cert.

getSerialNumber

public java.math.BigInteger getSerialNumber()

Deprecated.

Returns the certificate's serial number. Null is returned in the case of a partially constructed cert.

getSubjectName

public X500Name getSubjectName()

Deprecated.

Returns the subject's X.500 distinguished name.

getIssuerName

public X500Name getIssuerName()

Deprecated.

Returns the certificate issuer's X.500 distinguished name. Null is returned in the case of a partially constructed cert.

getIssuerAlgorithmId

public AlgorithmId getIssuerAlgorithmId()

Deprecated.

Returns the algorithm used by the issuer to sign the certificate. Null is returned in the case of a partially constructed cert.

getNotBefore

public java.util.Date getNotBefore()

Deprecated.

Returns the first time the certificate is valid.

getNotAfter

public java.util.Date getNotAfter()

Deprecated.

Returns the last time the certificate is valid.

getPublicKey

public java.security.PublicKey getPublicKey()

Deprecated.

Returns the subject's public key. Note that some public key algorithms support an optional certificate generation policy where the keys in the certificates are not in themselves sufficient to perform a public key operation. Those keys need to be augmented by algorithm parameters, which the certificate generation policy chose not to place in the certificate.

Two such public key algorithms are: DSS/DSA, where algorithm parameters could be acquired from a CA certificate in the chain of issuers; and Diffie-Hellman, with a similar solution although the CA then needs both a Diffie-Hellman certificate and a signature capable certificate.

Specified by:

getPublicKey in interface java.security.Certificate

getVersion

public int getVersion()

Deprecated.

Returns the X.509 version number of this certificate, zero based. That is, "2" indicates an X.509 version 3 (1993) certificate, and "0" indicates X.509v1 (1988). Zero is returned in the case of a partially constructed cert.

hashCode

public int hashCode()

Deprecated.

Calculates a hash code value for the object. Objects which are equal will also have the same hashcode.

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Deprecated.

Returns a printable representation of the certificate. This does not contain all the information available to distinguish this from any other certificate. The certificate must be fully constructed before this function may be called; in particular, if you are creating certificates you must call encodeAndSign() before calling this function.

Overrides:

toString in class java.lang.Object

toString

public java.lang.String toString(boolean detailed)

Deprecated.

Returns a printable representation of the certificate.

Specified by:

toString in interface java.security.Certificate

Parameters:

detailed - true iff lots of detail is requested