AES-192密文

AES-192

Mode=AES-ECB


Key=48C3B428 6FF421A4 A328E68A D9E542A4 5D07291B 0B73E5EB 2FBDDA93 4EC4346C

Cipher= CE6907E1877033D36B199B6821CAD630322C0AB5D0621ED308FAFA171279C86D

解密:

hint:

#include <stdio.h>
#include <stdlib.h>
#include <cryptoki.h>
#include <string.h>

int main()
{
    char HEX[]="48C3B4286FF421A4A328E68AD9E542A45D07291B0B73E5EB2FBDDA934EC4346C";
    CK_BYTE key[32];

    char tmp[3];
    for (int i=0; i<32; i++)
    {
        tmp[0]=HEX[2*i];
        tmp[1]=HEX[2*i+1];
        tmp[2]='\0';
        sscanf(tmp, "%x", &key[i]);
        printf("%#3x ", key[i]);
    }

    system("Pause");
    return 0;
}

Binary檔讀取

Binary檔讀取，請問：

• fopen
• fseek
• ftell
• rewind

用 C/C++算上學期加權平均

用 C/C++算上學期加權平均

世界程式語言排名

Programming Language	Position Mar 2010	Position Mar 2006	Position Mar 2000	Position Mar 1985
Java	1	1	3	-
C	2	2	2	1
PHP	3	4	14	-
C++	4	3	1	9
(Visual) Basic	5	5	4	3
C#	6	7	22	-
Python	7	8	-	-
Perl	8	6	5	-
Delphi	9	9	7	-
JavaScript	10	10	13	-

感謝林孟文老師告知，資料取於http://www.tiobe.com/index.php/content/paperinfo/tpci/index.html

統計2

http://spreadsheets.google.com/ccc?key=0AmrQEWnVRVj6dEpRUk5UNThoek5kSFlybkNoajh5bXc&hl=zh_TW

出生率

任何一個國家任一時段連續5年的出生率統計

Normal Distribution

X=N(3,4)

P(1 ＜X ＜7)=?

Quick Sort

quick sort

Merge sort

Merge sort

Bubble sort

Bubble sort