org.mozilla.jss.asn1

Class ASN1Util

java.lang.Object

org.mozilla.jss.asn1.ASN1Util

public class ASN1Util
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
ASN1Util()

Method Summary

Modifier and Type	Method and Description
static ASN1Value	decode(ASN1Template template, byte[] encoded)
static ASN1Value	decode(Tag implicitTag, ASN1Template template, byte[] encoded)
static byte[]	encode(ASN1Value val)
static byte[]	encode(Tag implicitTag, ASN1Value val)
static byte[]	getECCurveBytesByX509PublicKeyBytes(byte[] X509PubKeyBytes, boolean withHeader) returns the ECC curve byte array given the X509 public key byte array
static java.lang.String	getOIDdescription(byte[] oidBA) getOIDdescription() returns a text description of the OID from OID byte array the OID byte array is expected to be without the OID Tag (6) and size (together 2 bytes)
static void	readFully(byte[] bytes, java.io.InputStream istream) Fills a byte array with bytes from an input stream.

Methods inherited from class java.lang.Object

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

Constructor Detail

ASN1Util

public ASN1Util()

Method Detail

encode

public static byte[] encode(ASN1Value val)

encode

public static byte[] encode(Tag implicitTag,
                            ASN1Value val)

decode

public static ASN1Value decode(ASN1Template template,
                               byte[] encoded)
                        throws InvalidBERException

Throws:

InvalidBERException

decode

public static ASN1Value decode(Tag implicitTag,
                               ASN1Template template,
                               byte[] encoded)
                        throws InvalidBERException

Throws:

InvalidBERException

readFully

public static void readFully(byte[] bytes,
                             java.io.InputStream istream)
                      throws java.io.IOException

Fills a byte array with bytes from an input stream. This method keeps reading until the array is filled, an IOException occurs, or EOF is reached. The byte array will be completely filled unless an exception is thrown.

Parameters:

bytes - A byte array which will be filled up.

istream - The input stream from which to read the bytes.

Throws:

java.io.IOException - If an IOException occurs reading from the stream, or EOF is reached before the byte array is filled.

getECCurveBytesByX509PublicKeyBytes

public static byte[] getECCurveBytesByX509PublicKeyBytes(byte[] X509PubKeyBytes,
                                                         boolean withHeader)
                                                  throws java.lang.IllegalArgumentException,
                                                         java.lang.ArrayIndexOutOfBoundsException,
                                                         java.lang.NullPointerException

returns the ECC curve byte array given the X509 public key byte array

Parameters:

X509PubKeyBytes - byte array of an X509PubKey

withHeader - tells if the return byes should inclulde the tag and size header or not

Returns:

ECC curve byte array.

Throws:

java.lang.IllegalArgumentException

java.lang.ArrayIndexOutOfBoundsException

java.lang.NullPointerException

getOIDdescription

public static java.lang.String getOIDdescription(byte[] oidBA)

getOIDdescription() returns a text description of the OID from OID byte array the OID byte array is expected to be without the OID Tag (6) and size (together 2 bytes)

Parameters:

oidBA - OID byte array.

Returns:

OID description.