摘要：30年前用UCDOS和WPS，最讨厌有人给WPS文档加密码，只要遇到加密的WPS就想给它解掉，所以软盘里存着各种清除WPS密码的程序。
30年前用UCDOS和WPS，最讨厌有人给WPS文档加密码，只要遇到加密的WPS就想给它解掉，所以软盘里存着各种清除WPS密码的程序。
C程序：
//
/* 文件名: GETWPS.C */
/* 功 能: 获得WPS的密码 */
/* 语 言: TURBO C 2.0 */
/* 执 行: GETWPS wpsfilename */
//
#include
#include
main(int argc,char *argv)
{
int codee[8],i;
File *fp;
if(argc==1||argc>2)
{
puts("使用格式: GETWPS WPSFileNAME");
exit(1);
}
fp=(FILE *)malloc(sizeof(FILE));
fp=fopen(argv[1],"rb");
if(fp==NULL)
{
printf("%s%s\n",strupr(argv[1]),"文件没有找到!");
exit(1);
}
fSEEK(fp,0x02dd,0);
if(getc(fp)=='\0')
{
printf("%s%s\n",strupr(argv[1]),"文件没有被WPS加密.");
exit(1);
}
printf("%s%s",strupr(argv[1]),"的WPS密码是: ");
fseek(fp,0x02dd,0);
for(i=0;i
{
codee[i]=getc(fp);
codee[i]=((~codee[i]&0x0f)>4);
printf("%c",codee[i]);
}
fclose(fp);
}
BASIC程序：
REM clearwps
REM 清除WPS密码
REM 语 言:QuickBASIC
DIM MM(8)
COMM$ = "C:\AAA.WPS" '文件名
F$ = COMM$
REM F$=COMMAND$ '获得命令行文件名
OPEN F$ FOR BINARY AS #1 '打开文件
Filelen = LOF(1) '返回文件长度
IF Filelen = 0 THEN
PRINT "File not found !"
END '若长度为零则返回
END IF
IF Filelen
PRINT "The file isn't a WPS file !"
END '若长度小于等于1024字节则返回
END IF
FOR I = 734 TO 741
SEEK #1, I '定位到密码处
a$ = INPUT$(1, #1) '读出一字节
J = I - 733
MM(J) = ASC(a$) '密码保存
a$ = CHR$(0)
PUT #1, I, a$ '密码位写零
NEXT I
I = 1025 '从1025字节开始解密
DO WHILE I
J = 1
DO WHILE J
SEEK #1, I '定位文件指针
a$ = INPUT$(1, #I) '读一字节
ascn = ASC(a$) '将字符变为ASCII码
mscn = ascn XOR MM(J) '异或解密
a$ = CHR$(mscn) '将ASCII码变为字符
PUT #1, I, a$ '写回文件
J = J + 1
I = I + 1
LOOP
LOOP
CLOSE
END
查看WPS内容：
#include
#include
FILE *f1;
void error(char *p)
{
printf("%s file read error,or not exist !\n",p);
exit(0);
}
void help(void)
{
printf("%s\r\n","USAGE: lookwps ");
exit(1);
}
void type(int c)
{
switch(c)
{
case 0x0c:fscanf(f1,"%c",&c);printf("\n");break;
case 0x8d:fscanf(f1,"%c",&c);printf("\n");break;
case 0x0d:fscanf(f1,"%c",&c);printf("\n");break;
case 0x1a:break;
default:
if((c>=0x90)&&(c=0x80)&&(c
fscanf(f1,"%c",&c);
else
printf("%c",c);
break;
}
}
main(int argc,char *argv)
{
int a=0x2dd,b=0x400;
int c,c1,c2,i;
char buf[8];
if(argc!=2)
help;
if((f1=fopen(argv[1],"r"))==NULL)
error(argv[1]);
c1=fgetc(f1);
c2=fgetc(f1);
if(((c1!=0x03)||(c1!=0x01)||(c1!=0x02))&&(c2!=0xff))
{
printf("%s isn't a file of wps's format !",argv[1]);
exit(3);
}
fseek(f1,(long)a,0);
fread(buf,1,8,f1);
if(buf[0]!=0)
{
printf("File:%s was lock,can't read !\n",argv[1]);
printf("Please unlock,first.");
exit(4);
}
fseek(f1,(long)b,0);
while(!feof(f1))
{
fscanf(f1,"%c",&c);
type(c);
}
fclose(f1);
}
来源：东子科技