de.alpharogroup.crypto.key.reader

Class CertificateReader

java.lang.Object

de.alpharogroup.crypto.key.reader.CertificateReader

public class CertificateReader
extends Object

The class CertificateReader is a utility class for reading certificates.

Field Summary

Fields

Modifier and Type	Field and Description
static String	BEGIN_CERTIFICATE_PREFIX The Constant BEGIN_CERTIFICATE_PREFIX.
static String	END_CERTIFICATE_SUFFIX The Constant END_CERTIFICATE_SUFFIX.

Constructor Summary

Constructors

Constructor and Description
CertificateReader()

Method Summary

Modifier and Type	Method and Description
static X509Certificate	readCertificate(byte[] decoded) Reads the given byte array and tries to create a X509Certificate object.
static X509Certificate	readCertificate(File file) Reads the given file in *.der format and tries to create a X509Certificate object.
static X509Certificate	readPemCertificate(File file) Read pem certificate.
static String	readPemFileAsBase64(File file) Read the certificate from a pem file as base64 encoded String value.

Methods inherited from class java.lang.Object

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

Field Detail

BEGIN_CERTIFICATE_PREFIX

public static final String BEGIN_CERTIFICATE_PREFIX

The Constant BEGIN_CERTIFICATE_PREFIX.

See Also:

Constant Field Values

END_CERTIFICATE_SUFFIX

public static final String END_CERTIFICATE_SUFFIX

The Constant END_CERTIFICATE_SUFFIX.

See Also:

Constant Field Values

Constructor Detail

CertificateReader

public CertificateReader()

Method Detail

readPemCertificate

public static X509Certificate readPemCertificate(File file)
                                          throws Exception

Read pem certificate.

Parameters:

file - the file

Returns:

the certificate

Throws:

Exception - is thrown if if a security error occur

readPemFileAsBase64

public static String readPemFileAsBase64(File file)
                                  throws IOException

Read the certificate from a pem file as base64 encoded String value.

Parameters:

file - the file in pem format that contains the public key.

Returns:

the base64 encoded String value.

Throws:

IOException - Signals that an I/O exception has occurred.

readCertificate

public static X509Certificate readCertificate(File file)
                                       throws CertificateException,
                                              IOException

Reads the given file in *.der format and tries to create a X509Certificate object.

Parameters:

file - the file

Returns:

the X509Certificate object from the given byte array.

Throws:

CertificateException - is thrown if no Provider supports a CertificateFactorySpi implementation for the specified type.

IOException - Signals that an I/O exception has occurred.

readCertificate

public static X509Certificate readCertificate(byte[] decoded)
                                       throws CertificateException

Reads the given byte array and tries to create a X509Certificate object.

Parameters:

decoded - the decoded

Returns:

the X509Certificate object from the given byte array.

Throws:

CertificateException - is thrown if no Provider supports a CertificateFactorySpi implementation for the specified type.