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package Calsn;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
public class KeygenForBlue8
{ private static String getSerial(String userId, String version, String licenseNum, boolean selected)
{
Calendar cal = Calendar.getInstance();
cal.add( 1 , 3 );
cal.add( 6 , - 1 );
NumberFormat nf = new DecimalFormat( "000" );
licenseNum = nf.format(Integer.valueOf(licenseNum));
String verTime = (selected) ? "-" + new SimpleDateFormat( "yyMMdd" ).format(cal.getTime()) + "4" : "-1612214" ;
String type = "YE3MB-" ;
String need = userId.substring( 0 , 1 ) + type + version + licenseNum + verTime;
String dx = need + "Decompiling this copyrighted software is a violation of both your license agreement and the Digital Millenium Copyright Act of 1998 (http://www.loc.gov/copyright/legislation/dmca.pdf). Under section 1204 of the DMCA, penalties range up to a $500,000 fine or up to five years imprisonment for a first offense. Think about it; pay for a license, avoid prosecution, and feel better about yourself." + userId;
int suf = decode(dx);
String code = need + String.valueOf(suf);
return change(code);
}
private static int decode(String s)
{
int i = 0 ;
char [] ac = s.toCharArray();
int j = 0 ;
for ( int k = ac.length; j < k; ++j) {
i = 31 * i + ac[j];
}
return Math.abs(i);
}
private static String change(String s)
{
byte [] abyte0 = s.getBytes();
char [] ac = new char [s.length()];
int i = 0 ;
for ( int k = abyte0.length; i < k; ++i)
{
int j = abyte0[i];
if ((j >= 48 ) && (j <= 57 )) {
j = (j - 48 + 5 ) % 10 + 48 ;
}
else if ((j >= 65 ) && (j <= 90 )) {
j = (j - 65 + 13 ) % 26 + 65 ;
}
else if ((j >= 97 ) && (j <= 122 ))
j = (j - 97 + 13 ) % 26 + 97 ;
ac[i] = ( char )j;
}
return String.valueOf(ac);
}
public static void main(String[] args)
{
System.out.println(KeygenForBlue8.getSerial( "qiang" , "100" , "10" , false ));
}
} |
本文转自 梦朝思夕 51CTO博客,原文链接:http://blog.51cto.com/qiangmzsx/1364587