java.lang.Object
- com.adobe.internal.pdftoolkit.core.credentials.impl.utils.CertUtils

```
public class CertUtils
extends Object
```
A collection of utility methods related to cert creation and conversion

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static byte[][]`	`buildDERCertChain(Certificate[] certChain)`	Converts a java Certificate Chain to a der encoded byte array.
`static int`	`computeJavaPrivateKeySize(PrivateKey privateKey)`	Computes the size of a JCE PrivateKey
`static PrivateKey`	`createJCEPrivateKey(byte[] encodedPriKey, String keyWrappingFormat)`	Create a JCE PrivateKey given a DER encoded set of bytes representing the key.
`static PrivateKeyHolder`	`createJCEPrivateKeyHolder(byte[] encodedPriKey, String keyWrappingFormat)`	Create a JCE PrivateKey given a DER encoded set of bytes representing the key.
`static String`	`getCommonSubjectName(X509Certificate x509Certificate)`	Returns value of "CN" attribute from subject name of this certificate.
`static Certificate`	`importCertificate(byte[] certData)`	Creates a JCE X509 certificate from a DER encoded byte array representing the certificate.
`static Certificate[]`	`importCertificateChain(byte[][] certData)`	Creates a JCE X509 certificate chain from a DER encoded byte array representing the cert chain

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

importCertificate

public static Certificate importCertificate(byte[] certData)
                                     throws CertificateException,
                                            IOException

Creates a JCE X509 certificate from a DER encoded byte array representing the certificate.

Parameters:: certData -
Returns:: java.security.cert.Certificate
Throws:: CertificateException; IOException

importCertificateChain

public static Certificate[] importCertificateChain(byte[][] certData)
                                            throws CertificateException,
                                                   IOException

Creates a JCE X509 certificate chain from a DER encoded byte array representing the cert chain

Parameters:: certData -
Returns:: certificate chain
Throws:: CertificateException; IOException

createJCEPrivateKey

public static PrivateKey createJCEPrivateKey(byte[] encodedPriKey,
                                             String keyWrappingFormat)
                                      throws NoSuchAlgorithmException,
                                             InvalidKeySpecException

Create a JCE PrivateKey given a DER encoded set of bytes representing the key.

Parameters:: encodedPriKey -; keyWrappingFormat -
Returns:: PrivateKey
Throws:: NoSuchAlgorithmException; InvalidKeySpecException

createJCEPrivateKeyHolder

public static PrivateKeyHolder createJCEPrivateKeyHolder(byte[] encodedPriKey,
                                                         String keyWrappingFormat)
                                                  throws NoSuchAlgorithmException,
                                                         InvalidKeySpecException

Create a JCE PrivateKey given a DER encoded set of bytes representing the key.

Parameters:: encodedPriKey -; keyWrappingFormat -
Returns:: JCEPrivateKeyHolder
Throws:: NoSuchAlgorithmException; InvalidKeySpecException

buildDERCertChain

public static byte[][] buildDERCertChain(Certificate[] certChain)
                                  throws CertificateEncodingException,
                                         CertificateException

Converts a java Certificate Chain to a der encoded byte array.

Parameters:: certChain -
Returns:: byte[][] representing the der cert chain
Throws:: CertificateEncodingException; CertificateException

computeJavaPrivateKeySize

public static int computeJavaPrivateKeySize(PrivateKey privateKey)
                                     throws NoSuchAlgorithmException,
                                            InvalidKeySpecException

Computes the size of a JCE PrivateKey

Parameters:: privateKey -
Returns:: size of the JCE PrivateKey
Throws:: NoSuchAlgorithmException; InvalidKeySpecException

getCommonSubjectName
```
public static String getCommonSubjectName(X509Certificate x509Certificate)
```
Returns value of "CN" attribute from subject name of this certificate.

Parameters:

x509Certificate -

Returns:

String

Class CertUtils