com.xunlei.channel.common.utils.sign

Class DigestUtils

java.lang.Object

com.xunlei.channel.common.utils.sign.DigestUtils

public abstract class DigestUtils
extends Object

Miscellaneous methods for calculating digests.

Mainly for internal use within the framework; consider Apache Commons Codec for a more comprehensive suite of digest utilities.

Since:

3.0

Author:

Arjen Poutsma, Juergen Hoeller, Craig Andrews

Constructor Summary

Constructors

Constructor and Description
DigestUtils()

Method Summary

Modifier and Type	Method and Description
static StringBuilder	appendMd5DigestAsHex(byte[] bytes, StringBuilder builder) Append a hexadecimal string representation of the MD5 digest of the given bytes to the given StringBuilder.
static byte[]	md5Digest(byte[] bytes) Calculate the MD5 digest of the given bytes.
static String	md5DigestAsHex(byte[] bytes) Return a hexadecimal string representation of the MD5 digest of the given bytes.

Methods inherited from class java.lang.Object

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

Constructor Detail

DigestUtils

public DigestUtils()

Method Detail

md5Digest

public static byte[] md5Digest(byte[] bytes)

Calculate the MD5 digest of the given bytes.

Parameters:

bytes - the bytes to calculate the digest over

Returns:

the digest

md5DigestAsHex

public static String md5DigestAsHex(byte[] bytes)

Return a hexadecimal string representation of the MD5 digest of the given bytes.

Parameters:

bytes - the bytes to calculate the digest over

Returns:

a hexadecimal digest string

appendMd5DigestAsHex

public static StringBuilder appendMd5DigestAsHex(byte[] bytes,
                                                 StringBuilder builder)

Append a hexadecimal string representation of the MD5 digest of the given bytes to the given StringBuilder.

Parameters:

bytes - the bytes to calculate the digest over

builder - the string builder to append the digest to

Returns:

the given string builder