/**
* Returns the actual value of the extension.
*
* @param cert the certificate that contains the extensions to retrieve.
* @param oid the oid of the extension to retrieve.
* @return the actual value of the extension (not octet string encoded)
* @exception IOException if decoding the extension fails.
*/
public static byte[] getExtensionValue(X509Certificate cert, String oid) throws IOException {
if (cert == null) {
throw new IllegalArgumentException(i18n.getMessage("certNull"));
}
if (oid == null) {
throw new IllegalArgumentException(i18n.getMessage("oidNull"));
}
byte[] value = cert.getExtensionValue(oid);
if (value == null) {
return null;
}
return BouncyCastleUtil.getExtensionValue(value);
}
