CryptoServerUtil Class Reference

This class implements as set of utility functions. More...

Static Public Member Functions
static void	store_int2 (int val, byte[] buf, int pos)
	<> More...
static void	store_int3 (int val, byte[] buf, int pos)
	<> More...
static void	store_int4 (int val, byte[] buf, int pos)
	<> More...
static int	load_int2 (byte[] buf, int pos)
	<> More...
static int	load_int3 (byte[] buf, int pos)
	<> More...
static int	load_int4 (byte[] buf, int pos)
	<> More...
static byte[]	concat (byte[] a, byte[] b)
	<> More...
static byte[]	copyOf (byte[] a, int ofs, int len)
	<> More...
static byte[]	lstrip (byte[] a, int c)
	<> More...
static void	xtrace (PrintStream out, String str, byte[] data)
	<> More...
static void	xtrace (PrintStream out, byte[] data)
	<> More...
static void	xtrace (String str, byte[] data)
	<> More...
static void	xtrace (byte[] data)
	<> More...

Detailed Description

This class implements as set of utility functions.

Some of the static methods may be useful for applications that work with the CryptoServer.

Member Function Documentation

store_int2()

static void store_int2 ( int  val, byte[]  buf, int  pos  )

static

<>

Stores a 2-byte integer in to byte stream. The integer is stored in big endian order.

Parameters

val	Integer value to be stored (unsigned).
buf	Byte array into which the integer is stored.
pos	Position in the array (index), where the interger is stored.

store_int3()

static void store_int3 ( int  val, byte[]  buf, int  pos  )

static

<>

Stores a 3-byte integer in to byte stream. The integer is stored in big endian order.

Parameters

val	Integer value to be stored (unsigned).
buf	Byte array into which the integer is stored.
pos	Position in the array (index), where the interger is stored.

store_int4()

static void store_int4 ( int  val, byte[]  buf, int  pos  )

static

<>

Stores a 4-byte integer in to byte stream. The integer is stored in big endian order.

Parameters

val	Integer value to be stored (unsigned).
buf	Byte array into which the integer is stored.
pos	Position in the array (index), where the interger is stored.

load_int2()

static int load_int2 ( byte[]  buf, int  pos  )

static

<>

Loads a 2-byte integer from a byte stream. The integer must be stored in big endian order.

Parameters

buf	Byte array from which the integer is loaded.
pos	Position in the array (index), where the interger is loaded.

Returns

Integer value loaded (unsigned).

load_int3()

static int load_int3 ( byte[]  buf, int  pos  )

static

<>

Loads a 3-byte integer from a byte stream. The integer must be stored in big endian order.

Parameters

buf	Byte array from which the integer is loaded.
pos	Position in the array (index), where the interger is loaded.

Returns

Integer value loaded (unsigned).

load_int4()

static int load_int4 ( byte[]  buf, int  pos  )

static

<>

Loads a 4-byte integer from a byte stream. The integer must be stored in big endian order.

Parameters

buf	Byte array from which the integer is loaded.
pos	Position in the array (index), where the interger is loaded.

Returns

Integer value loaded.

concat()

static byte[] concat ( byte[]  a, byte[]  b  )

static

<>

Concatenates two byte arrays

Parameters

a	first byte array
b	second byte array

Returns

concatenated arrays (a | b)

copyOf()

static byte[] copyOf ( byte[]  a, int  ofs, int  len  )

static

<>

Returns part of a byte array

Parameters

a	original byte array
ofs	offset to copied area
len	number of bytes to be copied

Returns

byte array containing the copied area

lstrip()

static byte[] lstrip ( byte[]  a, int  c  )

static

<>

Strips leading characters from the given byte array

Parameters

a	byte array to be stripped
c	character to be stripped

Returns

stripped byte array

xtrace() [1/4]

static void xtrace ( PrintStream  out, String  str, byte[]  data  )

static

<>

Prints the contents of a byte array. The byte array is printed hexadecimal and ASCII to a given PrintStream.

Parameters

out	PrintStream to which the output is send.
str	Headline for the output.
data	Byte array to be printed.

xtrace() [2/4]

static void xtrace ( PrintStream  out, byte[]  data  )

static

<>

Prints the contents of a byte array. The byte array is printed hexadecimal and ASCII to a given PrintStream.

Parameters

out	PrintStream to which the output is send.
data	Byte array to be printed.

xtrace() [3/4]

static void xtrace ( String  str, byte[]  data  )

static

<>

Prints the contents of a byte array. The byte array is printed hexadecimal and ASCII to System.out.

Parameters

str	Headline for the output.
data	Byte array to be printed.

xtrace() [4/4]

static void xtrace ( byte[]  data )

static

<>

Prints the contents of a byte array. The byte array is printed hexadecimal and ASCII to System.out.

Parameters

data	Byte array to be printed.