com.microej.crypto.internal.x509

Class X509Factory

java.lang.Object

java.security.cert.CertificateFactorySpi

com.microej.crypto.internal.x509.X509Factory

public class X509Factory
extends CertificateFactorySpi

Constructor Summary

Constructors

Constructor and Description
X509Factory()

Method Summary

Modifier and Type	Method and Description
Certificate	engineGenerateCertificate(InputStream stream) Generates a certificate object and initializes it with the data read from the input stream inStream.
Collection<? extends Certificate>	engineGenerateCertificates(InputStream inStream) Returns a (possibly empty) collection view of the certificates read from the given input stream inStream.
CertPath	engineGenerateCertPath(List<? extends Certificate> certificates) Generates a CertPath object and initializes it with a List of Certificates.
CRL	engineGenerateCRL(InputStream inStream) Generates a certificate revocation list (CRL) object and initializes it with the data read from the input stream inStream.
Collection<? extends CRL>	engineGenerateCRLs(InputStream inStream) Returns a (possibly empty) collection view of the CRLs read from the given input stream inStream.

Methods inherited from class java.security.cert.CertificateFactorySpi

engineGenerateCertPath, engineGenerateCertPath, engineGetCertPathEncodings

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

X509Factory

public X509Factory()

Method Detail

engineGenerateCertificate

public Certificate engineGenerateCertificate(InputStream stream)
                                      throws CertificateException

Description copied from class: CertificateFactorySpi

Generates a certificate object and initializes it with the data read from the input stream inStream.

In order to take advantage of the specialized certificate format supported by this certificate factory, the returned certificate object can be typecast to the corresponding certificate class. For example, if this certificate factory implements X.509 certificates, the returned certificate object can be typecast to the X509Certificate class.

In the case of a certificate factory for X.509 certificates, the certificate provided in inStream must be DER-encoded and may be supplied in binary or printable (Base64) encoding. If the certificate is provided in Base64 encoding, it must be bounded at the beginning by -----BEGIN CERTIFICATE-----, and must be bounded at the end by -----END CERTIFICATE-----.

Note that if the given input stream does not support mark and reset, this method will consume the entire input stream. Otherwise, each call to this method consumes one certificate and the read position of the input stream is positioned to the next available byte after the inherent end-of-certificate marker. If the data in the input stream does not contain an inherent end-of-certificate marker (other than EOF) and there is trailing data after the certificate is parsed, a CertificateException is thrown.

Specified by:

engineGenerateCertificate in class CertificateFactorySpi

Parameters:

stream - an input stream with the certificate data.

Returns:

a certificate object initialized with the data from the input stream.

Throws:

CertificateException - on parsing errors.

engineGenerateCertificates

public Collection<? extends Certificate> engineGenerateCertificates(InputStream inStream)
                                                             throws CertificateException

Description copied from class: CertificateFactorySpi

Returns a (possibly empty) collection view of the certificates read from the given input stream inStream.

In order to take advantage of the specialized certificate format supported by this certificate factory, each element in the returned collection view can be typecast to the corresponding certificate class. For example, if this certificate factory implements X.509 certificates, the elements in the returned collection can be typecast to the X509Certificate class.

In the case of a certificate factory for X.509 certificates, inStream may contain a single DER-encoded certificate in the formats described for generateCertificate. In addition, inStream may contain a PKCS#7 certificate chain. This is a PKCS#7 SignedData object, with the only significant field being certificates. In particular, the signature and the contents are ignored. This format allows multiple certificates to be downloaded at once. If no certificates are present, an empty collection is returned.

Note that if the given input stream does not support mark and reset, this method will consume the entire input stream.

Specified by:

engineGenerateCertificates in class CertificateFactorySpi

Parameters:

inStream - the input stream with the certificates.

Returns:

a (possibly empty) collection view of java.security.cert.Certificate objects initialized with the data from the input stream.

Throws:

CertificateException - on parsing errors.

engineGenerateCertPath

public CertPath engineGenerateCertPath(List<? extends Certificate> certificates)
                                throws CertificateException

Description copied from class: CertificateFactorySpi

Generates a CertPath object and initializes it with a List of Certificates.

The certificates supplied must be of a type supported by the CertificateFactory. They will be copied out of the supplied List object.

This method was added to version 1.4 of the Java 2 Platform Standard Edition. In order to maintain backwards compatibility with existing service providers, this method cannot be abstract and by default throws an UnsupportedOperationException.

Overrides:

engineGenerateCertPath in class CertificateFactorySpi

Parameters:

certificates - a List of Certificates

Returns:

a CertPath initialized with the supplied list of certificates

Throws:

CertificateException - if an exception occurs

engineGenerateCRL

public CRL engineGenerateCRL(InputStream inStream)
                      throws CRLException

Description copied from class: CertificateFactorySpi

Generates a certificate revocation list (CRL) object and initializes it with the data read from the input stream inStream.

In order to take advantage of the specialized CRL format supported by this certificate factory, the returned CRL object can be typecast to the corresponding CRL class. For example, if this certificate factory implements X.509 CRLs, the returned CRL object can be typecast to the X509CRL class.

Note that if the given input stream does not support mark and reset, this method will consume the entire input stream. Otherwise, each call to this method consumes one CRL and the read position of the input stream is positioned to the next available byte after the inherent end-of-CRL marker. If the data in the input stream does not contain an inherent end-of-CRL marker (other than EOF) and there is trailing data after the CRL is parsed, a CRLException is thrown.

Specified by:

engineGenerateCRL in class CertificateFactorySpi

Parameters:

inStream - an input stream with the CRL data.

Returns:

a CRL object initialized with the data from the input stream.

Throws:

CRLException - on parsing errors.

engineGenerateCRLs

public Collection<? extends CRL> engineGenerateCRLs(InputStream inStream)
                                             throws CRLException

Description copied from class: CertificateFactorySpi

Returns a (possibly empty) collection view of the CRLs read from the given input stream inStream.

In order to take advantage of the specialized CRL format supported by this certificate factory, each element in the returned collection view can be typecast to the corresponding CRL class. For example, if this certificate factory implements X.509 CRLs, the elements in the returned collection can be typecast to the X509CRL class.

In the case of a certificate factory for X.509 CRLs, inStream may contain a single DER-encoded CRL. In addition, inStream may contain a PKCS#7 CRL set. This is a PKCS#7 SignedData object, with the only significant field being crls. In particular, the signature and the contents are ignored. This format allows multiple CRLs to be downloaded at once. If no CRLs are present, an empty collection is returned.

Note that if the given input stream does not support mark and reset, this method will consume the entire input stream.

Specified by:

engineGenerateCRLs in class CertificateFactorySpi

Parameters:

inStream - the input stream with the CRLs.

Returns:

a (possibly empty) collection view of java.security.cert.CRL objects initialized with the data from the input stream.

Throws:

CRLException - on parsing errors.