org.xipki.pkcs11.wrapper

Class Functions

java.lang.Object

org.xipki.pkcs11.wrapper.Functions

public class Functions
extends Object

This class contains only static methods. It is the place for all functions that are used by several classes in this package.

Author:

Lijun Liao (xipki)

Constructor Summary

Constructors

Constructor and Description
Functions()

Method Summary

Modifier and Type	Method and Description
static byte[]	asUnsignedByteArray(BigInteger bn)
static byte[]	decodeHex(String encoded)
static String	decodeOid(byte[] encoded)
static byte[]	dsaSigPlainToX962(byte[] sig)
static byte[]	dsaSigX962ToPlain(byte[] sig, int rOrSLen)
static byte[]	encodeOid(String oid)
static String	getCurveName(byte[] ecParams)
static String[]	getCurveNames(byte[] ecParams)
static Integer	getCurveOrderBitLength(byte[] ecParams)
static byte[]	getEcParams(BigInteger order, BigInteger baseX)
static byte[]	getOctetsFromASN1BitString(byte[] encoded)
static byte[]	getOctetsFromASN1OctetString(byte[] encoded)
static Long	parseLong(String text)
static int	requireAmong(String name, int argument, int... candidates)
static <T> T	requireNonNull(String paramName, T param)
static int	requireRange(String name, int argument, int min, int max)
static String	toFullHex(long value) Converts a long value to a lower-case hexadecimal String of length 16.
static String	toFullHexUpper(long value) Converts a long value to an upper-case hexadecimal String of length 16.
static String	toHex(byte[] value) Converts a byte array to a hexadecimal String.
static String	toHex(byte[] value, int ofs, int len)
static byte[]	toOctetOrBitString(byte[] bytes, boolean isBitString)
static String	toString(String prefix, byte[] bytes)
static String	toStringFlags(PKCS11Constants.Category category, String prefix, long flags, long... flagMasks)

Methods inherited from class java.lang.Object

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

Constructor Detail

Functions

public Functions()

Method Detail

encodeOid

public static byte[] encodeOid(String oid)

asUnsignedByteArray

public static byte[] asUnsignedByteArray(BigInteger bn)

toFullHex

public static String toFullHex(long value)

Converts a long value to a lower-case hexadecimal String of length 16. Includes leading zeros if necessary.

Parameters:

value - The long value to be converted.

Returns:

The hexadecimal string representation of the long value.

toFullHexUpper

public static String toFullHexUpper(long value)

Converts a long value to an upper-case hexadecimal String of length 16. Includes leading zeros if necessary.

Parameters:

value - The long value to be converted.

Returns:

The hexadecimal string representation of the long value.

toHex

public static String toHex(byte[] value)

Converts a byte array to a hexadecimal String. Each byte is presented by its two digit hex-code; 0x0A -> "0a", 0x00 -> "00". No leading "0x" is included in the result.

Parameters:

value - the byte array to be converted

Returns:

the hexadecimal string representation of the byte array

toHex

public static String toHex(byte[] value,
                           int ofs,
                           int len)

decodeHex

public static byte[] decodeHex(String encoded)

parseLong

public static Long parseLong(String text)

requireNonNull

public static <T> T requireNonNull(String paramName,
                                   T param)

requireRange

public static int requireRange(String name,
                               int argument,
                               int min,
                               int max)

requireAmong

public static int requireAmong(String name,
                               int argument,
                               int... candidates)

toStringFlags

public static String toStringFlags(PKCS11Constants.Category category,
                                   String prefix,
                                   long flags,
                                   long... flagMasks)

getEcParams

public static byte[] getEcParams(BigInteger order,
                                 BigInteger baseX)

getCurveOrderBitLength

public static Integer getCurveOrderBitLength(byte[] ecParams)

getCurveName

public static String getCurveName(byte[] ecParams)

getCurveNames

public static String[] getCurveNames(byte[] ecParams)

decodeOid

public static String decodeOid(byte[] encoded)

dsaSigPlainToX962

public static byte[] dsaSigPlainToX962(byte[] sig)

dsaSigX962ToPlain

public static byte[] dsaSigX962ToPlain(byte[] sig,
                                       int rOrSLen)

toString

public static String toString(String prefix,
                              byte[] bytes)

getOctetsFromASN1OctetString

public static byte[] getOctetsFromASN1OctetString(byte[] encoded)
                                           throws TokenException

Throws:

TokenException

getOctetsFromASN1BitString

public static byte[] getOctetsFromASN1BitString(byte[] encoded)
                                         throws TokenException

Throws:

TokenException

toOctetOrBitString

public static byte[] toOctetOrBitString(byte[] bytes,
                                        boolean isBitString)