sha-1.rar_SHA

#include <iostream> int main() { FILE *fp; if((fp = fopen("Message.txt","r")) == NULL) { return 0; } char Message[16][4]; int i =0 ; int j = 0; int k = 0; int m,n; while (!feof(fp)) { Message[j][i] = fgetc(fp); i++; if (i==4) { i = 0; j++; if(j == 16) { j = 0; k++; } } } fclose(fp); Message[j][i-1] = (char)0x80; __int64 Length = k*16*8*4 + j*4*8 + i*8; int d = (448 - Length)%512/8; for ( m = 0;m < d;m++) { Message[j][i] = '\0'; i++; if (i==4) { i = 0; j++; if(j == 16) { j = 0; k++; } } } for ( m = 8;m > 0;m--) { Message[j][i] = Length >>(m-1)*8; i++; if (i==4) { i = 0; j++; if(j == 16) { j = 0; k++; } } } fp = fopen("padding.txt","a"); fwrite("\n\n学号：2009123002，姓名：\n",sizeof("\n\n学号：2009123002，姓名：\n"),1,fp); fwrite("W[0]:",sizeof("W[0]:"),1,fp); for ( n = 0;n<4;n++) for( m=0;m<8;m++) fputc((((Message[0][n]&(1<<(7-m)))>>(7-m))& 0x01 )+ 48,fp); fwrite("\nW[1]:",sizeof("\nW[1]:"),1,fp); for ( n = 0;n<4;n++) for( m=0;m<8;m++) fputc((((Message[1][n]&(1<<(7-m)))>>(7-m))& 0x01 )+ 48,fp); fwrite("\nW[2]:",sizeof("\nW[2]:"),1,fp); for ( n = 0;n<4;n++) for( m=0;m<8;m++) fputc((((Message[2][n]&(1<<(7-m)))>>(7-m))& 0x01 )+ 48,fp); fwrite("\nW[14]:",sizeof("\nW[14]:"),1,fp); for ( n = 0;n<4;n++) for( m=0;m<8;m++) fputc((((Message[14][n]&(1<<(7-m)))>>(7-m))& 0x01 )+ 48,fp); fwrite("\nW[15]:",sizeof("\nW[15]:"),1,fp); for ( n = 0;n<4;n++) for( m=0;m<8;m++) fputc((((Message[15][n]&(1<<(7-m)))>>(7-m))& 0x01 )+ 48,fp); //写入文件 fclose(fp); return 0; }