import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
public class DemoMD5
{
private static String convertedToHex(byte[] data)
{
StringBuffer buf = new StringBuffer();
for (int i = 0; i < data.length; i++)
{
int halfOfByte = (data[i] >>> 4) & 0x0F;
int twoHalfBytes = 0;
do
{
if ((0 <= halfOfByte) && (halfOfByte <= 9))
{
buf.append( (char) ('0' + halfOfByte) );
}
else
{
buf.append( (char) ('a' + (halfOfByte - 10)) );
}
halfOfByte = data[i] & 0x0F;
} while(twoHalfBytes++ < 1);
}
return buf.toString();
}
public static String MD5(String text)
throws NoSuchAlgorithmException, UnsupportedEncodingException
{
MessageDigest md;
md = MessageDigest.getInstance("MD5");
byte[] md5 = new byte[64];
md.update(text.getBytes("iso-8859-1"), 0, text.length());
md5 = md.digest();
return convertedToHex(md5);
}
}
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
public class DemoMD5
{
private static String convertedToHex(byte[] data)
{
StringBuffer buf = new StringBuffer();
for (int i = 0; i < data.length; i++)
{
int halfOfByte = (data[i] >>> 4) & 0x0F;
int twoHalfBytes = 0;
do
{
if ((0 <= halfOfByte) && (halfOfByte <= 9))
{
buf.append( (char) ('0' + halfOfByte) );
}
else
{
buf.append( (char) ('a' + (halfOfByte - 10)) );
}
halfOfByte = data[i] & 0x0F;
} while(twoHalfBytes++ < 1);
}
return buf.toString();
}
public static String MD5(String text)
throws NoSuchAlgorithmException, UnsupportedEncodingException
{
MessageDigest md;
md = MessageDigest.getInstance("MD5");
byte[] md5 = new byte[64];
md.update(text.getBytes("iso-8859-1"), 0, text.length());
md5 = md.digest();
return convertedToHex(md5);
}
}
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