Package org.jolokia.jvmagent.security.asn1

Class DERUtils

java.lang.Object

org.jolokia.jvmagent.security.asn1.DERUtils

public class DERUtils
extends Object

Method Summary

Modifier and Type	Method	Description
static int[]	decodeLength(byte[] encoded)	Decode length value in the passed byte array
static int[]	decodeLength(byte[] encoded, int offset)	Decode length value in the passed byte array starting from offset
static byte[]	encodeLength(int size)	ASN.1 encode length value as length octets according to X.690, 8.1.3 Length octets
static DERObject	parse(byte[] encoded)
static DERObject	parse(byte[] encoded, int offset)

Methods inherited from class java.lang.Object

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

Method Details

encodeLength

public static byte[] encodeLength(int size)

ASN.1 encode length value as length octets according to X.690, 8.1.3 Length octets

DER rules permit only the definite form without end marker. int allows encoding lengths up to and including 0x7FFFFFFF and 5 bytes for encoded length is enough to fit such encoded length value.

Parameters:

size -

Returns:

decodeLength

public static int[] decodeLength(byte[] encoded)

Decode length value in the passed byte array

Parameters:

encoded -

Returns:

[ the length of the DER value, length of encoded length value ]

decodeLength

public static int[] decodeLength(byte[] encoded,
 int offset)

Decode length value in the passed byte array starting from offset

Parameters:

encoded -

offset -

Returns:

[ the length of the DER value, length of encoded length value ]

parse

public static DERObject parse(byte[] encoded)

parse

public static DERObject parse(byte[] encoded,
 int offset)