com.redhat.rhn.common.util

Class MD5Sum

java.lang.Object

com.redhat.rhn.common.util.MD5Sum

public class MD5Sum
extends java.lang.Object

Copied from: http://www.koders.com/java/fidEC98D99B347D738A2B560EA856B93ADEABCF6B4E.aspx

Field Summary

Fields

Modifier and Type	Field and Description
static int	MD5_BUFFER_SIZE
static int	SCOUR_MD5_BYTE_LIMIT

Method Summary

Modifier and Type	Method and Description
static java.lang.String	getFileMD5Sum(java.io.File f) Method: getFileMD5Sum Purpose: get the MD5 sum of a file.
static java.lang.String	md5Sum(byte[] input) MD5Sum the byte array
static java.lang.String	md5Sum(byte[] input, int limit) mdsum the byte array with a limit
static java.lang.String	md5Sum(java.lang.String str) Method: md5Sum Purpose: calculate the MD5 in a way compatible with how the scour.net protocol encodes its passwords (incidentally, it also outputs a string identical to the md5sum unix command).

Methods inherited from class java.lang.Object

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

Field Detail

SCOUR_MD5_BYTE_LIMIT

public static final int SCOUR_MD5_BYTE_LIMIT

See Also:

Constant Field Values

MD5_BUFFER_SIZE

public static final int MD5_BUFFER_SIZE

See Also:

Constant Field Values

Method Detail

md5Sum

public static java.lang.String md5Sum(java.lang.String str)

Method: md5Sum Purpose: calculate the MD5 in a way compatible with how the scour.net protocol encodes its passwords (incidentally, it also outputs a string identical to the md5sum unix command).

Parameters:

str - the String from which to calculate the sum

Returns:

the MD5 checksum

md5Sum

public static java.lang.String md5Sum(byte[] input)

MD5Sum the byte array

Parameters:

input - to sum

Returns:

String md5sum

md5Sum

public static java.lang.String md5Sum(byte[] input,
                                      int limit)

mdsum the byte array with a limit

Parameters:

input - to sum

limit - to stop at

Returns:

String md5sum

getFileMD5Sum

public static java.lang.String getFileMD5Sum(java.io.File f)
                                      throws java.io.IOException,
                                             MD5CryptException

Method: getFileMD5Sum Purpose: get the MD5 sum of a file.

Parameters:

f - the file to read

Returns:

the MD5 sum string

Throws:

java.io.IOException - on IO error

MD5CryptException - on getting MD5 MessageDigest instance