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Class cryptix.util.core.Hex
java.lang.Object
|
+----cryptix.util.core.Hex
- public class Hex
- extends Object
Static methods for converting to and from hexadecimal strings.
Copyright © 1995-1997
Systemics Ltd on behalf of the
Cryptix Development Team.
All rights reserved.
$Revision: 1.1.1.1 $
- Author:
- David Hopwood, Raif Naffah, Systemics Ltd
-
byteToString(int)
- Returns a string of 2 hexadecimal digits (most significant digit first)
corresponding to the lowest 8 bits of n.
-
dumpString(byte[])
-
-
dumpString(byte[], int, int)
-
-
dumpString(byte[], int, int, String)
- Dump a byte array as a string, in a format that is easy to read for
debugging.
-
dumpString(byte[], String)
-
-
fromDigit(char)
- Returns the number from 0 to 15 corresponding to the hex digit ch.
-
fromReversedString(String)
- Returns a byte array from a string of hexadecimal digits in reverse
order (i.e.
-
fromString(String)
- Returns a byte array from a string of hexadecimal digits.
-
intToString(int)
- Returns a string of 8 hexadecimal digits (most significant digit first)
corresponding to the integer n, which is treated as unsigned.
-
longToString(long)
- Returns a string of 16 hexadecimal digits (most significant digit first)
corresponding to the long n, which is treated as unsigned.
-
main(String[])
-
-
self_test(PrintWriter)
-
-
shortToString(int)
- Returns a string of 4 hexadecimal digits (most significant digit first)
corresponding to the lowest 16 bits of n.
-
toDigit(int)
- Returns the hex digit corresponding to a number n, from 0 to 15.
-
toReversedString(byte[])
-
-
toReversedString(byte[], int, int)
- Returns a string of hexadecimal digits in reverse order from a byte array
(i.e.
-
toString(byte[])
-
-
toString(byte[], int, int)
- Returns a string of hexadecimal digits from a byte array.
-
toString(int[])
-
-
toString(int[], int, int)
- Returns a string of hexadecimal digits from an integer array.
toString
public static String toString(byte ba[],
int offset,
int length)
- Returns a string of hexadecimal digits from a byte array. Each
byte is converted to 2 hex symbols.
If offset and length are omitted, the whole array is used.
toString
public static String toString(byte ba[])
toString
public static String toString(int ia[],
int offset,
int length)
- Returns a string of hexadecimal digits from an integer array. Each
int is converted to 4 hex symbols.
If offset and length are omitted, the whole array is used.
toString
public static String toString(int ia[])
toReversedString
public static String toReversedString(byte b[],
int offset,
int length)
- Returns a string of hexadecimal digits in reverse order from a byte array
(i.e. the least significant byte is first, but within each byte the
most significant hex digit is before the least significant hex digit).
If offset and length are omitted, the whole array is used.
toReversedString
public static String toReversedString(byte b[])
fromString
public static byte[] fromString(String hex)
- Returns a byte array from a string of hexadecimal digits.
fromReversedString
public static byte[] fromReversedString(String hex)
- Returns a byte array from a string of hexadecimal digits in reverse
order (i.e. the least significant byte is first, but within each byte the
most significant hex digit is before the least significant hex digit).
The string must have an even number of digits.
This is not really either little nor big-endian; it's just obscure. It is
here because it is the format used for the SPEED certification data.
toDigit
public static char toDigit(int n)
- Returns the hex digit corresponding to a number n, from 0 to 15.
fromDigit
public static int fromDigit(char ch)
- Returns the number from 0 to 15 corresponding to the hex digit ch.
byteToString
public static String byteToString(int n)
- Returns a string of 2 hexadecimal digits (most significant digit first)
corresponding to the lowest 8 bits of n.
shortToString
public static String shortToString(int n)
- Returns a string of 4 hexadecimal digits (most significant digit first)
corresponding to the lowest 16 bits of n.
intToString
public static String intToString(int n)
- Returns a string of 8 hexadecimal digits (most significant digit first)
corresponding to the integer n, which is treated as unsigned.
longToString
public static String longToString(long n)
- Returns a string of 16 hexadecimal digits (most significant digit first)
corresponding to the long n, which is treated as unsigned.
dumpString
public static String dumpString(byte data[],
int offset,
int length,
String m)
- Dump a byte array as a string, in a format that is easy to read for
debugging. The string m is prepended to the start of each line.
If offset and length are omitted, the whole array is used. If m is
omitted, nothing is prepended to each line.
- Parameters:
- data - the byte array to be dumped
- offset - the offset within data to start from
- length - the number of bytes to dump
- m - a string to be prepended to each line
- Returns:
- a String containing the dump.
dumpString
public static String dumpString(byte data[])
dumpString
public static String dumpString(byte data[],
String m)
dumpString
public static String dumpString(byte data[],
int offset,
int length)
main
public static void main(String args[])
self_test
public static void self_test(PrintWriter out)
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