【】写了很久的东西了；今天来学院；没什么东东贴，就上这个吧
【】中了一次毒，丢了不少东东
【】最可惜的是一堆关于公开密钥算法快速实现的资料，希望能……
/* freeRes V 0.94 KeyGen */
/* by lq7972 */
/* [email]bruceyu13@sina.com[/email] */
#include <stdio.h>
#include <string.h>
#include <wchar.h>
char *ChangeName (char *, int) ;
int ModifyValue (int, int) ;
int main ()
{
int name_len, i, counter, temp ;
unsigned long int temp00, tempNumber = 0x3D6 ;
char user_name [255] = "", tempName [255] = "", hard_code [255] = "" ;
char *new_name, RegCode [41] = "" ;
wchar_t reg_code01 [20], reg_code02 [20] ;
FILE *cfPtr ;
printf ("\t freeRes V 0.94 KeyGen\n\tby lq7972[bruceyu13@sina.com]\n\n") ;
printf ("Enter your name : ") ;
gets (user_name) ;
printf ("Enter hard code : ") ;
gets (hard_code) ;
strcpy (tempName, user_name) ;
strcat (tempName, hard_code) ;
name_len = strlen (tempName) ;
/********************************************************/
/* change user_name */
new_name = ChangeName (tempName, name_len) ;
name_len = strlen (new_name) ;
/********************************************************/
/* Calc01 */
for (counter=0; counter<name_len; counter++) {
temp00 = tempNumber ;
temp00 <<= 16 ;
temp00 >>= 24 ;
reg_code01 [counter] = new_name [counter] ^ temp00 ;
tempNumber += reg_code01 [counter] ;
tempNumber *= 0x3183 ;
tempNumber += 0x8C34 ;
}
/********************************************************/
/* Calc02 */
tempNumber = 0x3D6 ;
for (counter=0; counter<name_len; counter++) {
temp00 = tempNumber ;
temp00 <<= 16 ;
temp00 >>= 24 ;
reg_code02 [counter] = reg_code01 [counter] ^ temp00 ;
tempNumber += reg_code02 [counter] ;
tempNumber *= 0x3183 ;
tempNumber += 0x8C34 ;
}
/********************************************************/
/* Calc03 */
for (i=0, counter=0; counter<name_len; counter++, i=i+2) {
if (reg_code02 [counter]>0x7E) {
temp = ModifyValue (reg_code02 [counter], 0x7E) ;
RegCode [i] = reg_code02 [counter] >> temp ;
RegCode [i+1] = ((temp & reg_code02 [counter]) << 4) | 0x42 ;
}
else {
if (reg_code02 [counter] >=0x21) {
RegCode [i] = reg_code02 [counter] ;
RegCode [i+1] = 0x43 ;
}
else {
temp = ModifyValue (reg_code02 [counter], 0x21) ;
RegCode [i] = reg_code02 [counter] << temp ;
RegCode [i+1] = temp+0x43 ;
}
}
}
printf ("Your reg code are : %s\n", RegCode) ;
printf ("Writing file...\n") ;
if ((cfPtr = fopen("key.txt", "w")) == NULL)
printf ("File could not be opened\n") ;
else
fprintf (cfPtr, "%s\n%s\n%s%s\n%s%s\n%s\n%s",
"freeRes V 0.94 KeyGen",
"by lq7972[bruceyu13@sina.com]",
"Your user name : ", user_name,
"Your hard code : ", hard_code,
"Your reg code are :",
RegCode) ;
return 0 ;
}
/********************************************************/
/**/
char *ChangeName (char *uName, int len)
{
int i=1, j, counter, temp ;
char nName [20] = "", tempName [19] = "" ;
if (len <= 0x13) {
nName [0] = uName [len-1] ;
nName [1] = len ;
if (0x13 == len) {
strncpy (tempName, uName, 18) ;
strcat (nName, tempName) ;
}
else {
for (counter=(0x12-len+1); counter>1; counter--) {
nName [counter] = nName [0] + i ;
i ++ ;
}
strcat (nName, uName) ;
}
}
else {
i=(len-0x13) ; j = 0x13 ;
temp = uName [0x12] ;
for (; i>0; i--, j++) {
temp -= uName [j] ;
if (temp<0) temp *= -1 ;
}
nName [0] = temp ;
nName [1] = len ;
strncpy (tempName, uName, 18) ;
strcat (nName, tempName) ;
}
return nName ;
}
/********************************************************/
/**/
int ModifyValue (int in, int select)
{
register int counter = 0 ;
switch (select) {
case 0x7E :
while (in > 0x7F) {
counter ++ ;
in = (in & 0xFF) >> 1 ;
}
if (2 == counter) counter = 3 ;
break ;
case 0x21 :
while (in < 0x21) {
counter ++ ;
in += in ;
}
break ;
}
return counter ;
}
【】买一送一
Software : Delphi学习宝典
教学软件，主要有以下功能:初级教程/开发教程/API函数/内置函数/错误信息
http://learndelphi.yeah.net/
Tools : OllyDbg
Cracker : lq7972 [bruceyu13@sina.com]
很简单的注册机制，不过这个东东的资料搜集还是下了些功夫
主程序是 Microsoft Visual Basic 6.0
【注册机】
/* [请使用E文注册名] */
#include <stdio.h>
#include <string.h>
int main ()
{
register int i ;
int code = 0 ;
char name [256] ;
printf ("\t\tLearnDelphi V 1.2 KeyGen\n"
"\t by lq7972 [bruceyu13@sina.com]\n") ;
printf ("Enter your name : ") ;
gets (name) ;
for (i=0; i < strlen(name); i ++) code += name[i] ;
printf ("Your code is : %d\n", code*0x12D687) ;
printf ("Press any key to continue\n");
getch () ;
return 0 ;
}
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