rc4流密碼算法之c語言實現(xiàn)(編輯修改稿)
2025-07-22 07:25 本頁面
【文章內(nèi)容簡介】 。t open file\n)。 return 1。} RC4(file1,file2,key)。fclose(file1)。fclose(file2)。return 0。}加密解密算法 RC5 include include include static const w=32。static const r=12。static const b=16。static const t=26。//2*r+2=12*2+2static const c=4。 //r*8/b = 16*8/32 typedef unsigned long int FOURBYTEINT。typedef unsigned char BYTE。/*** 循環(huán)左移和右移函數(shù)* x : 被循環(huán)的數(shù)* y : 將要循環(huán)的位數(shù)*/define ROTL(x,y) (((x)(yamp。(w1))) | ((x)(w(yamp。(w1)))))define ROTR(x,y) (((x)(yamp。(w1))) | ((x)(w(yamp。(w1)))))/** 產(chǎn)生子密鑰的函數(shù)*/void generateChildKey(unsigned char*,FOURBYTEINT*)。/** 產(chǎn)生初試密鑰的函數(shù)*/void InitialKey(unsigned char* KeyK,int b){for(int i=0。ib。i++){ KeyK[i]=0。}int intiSeed=3。KeyK[0]=intiSeed。for(i=1。ib。i++){ KeyK[i] = (BYTE) ( ((int)(pow(3,i)))%(255i) )。 //KeyK[i] = KeyK[i1]*intiSeed % 256。}}/** 取最近奇數(shù)的函數(shù)*/int Odd(double fl){int floorOffl = (int)floor(fl)。if (floorOffl% 2==0) return floorOffl+1。return floorOffl。}/** 加密函數(shù)*/void Encipher(FOURBYTEINT* In,FOURBYTEINT* Out,FOURBYTE
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