AES算法C源代碼

1、#include<>#include<>#include<>#include<>#include<>#defineNb4intRcon255=(0x8d,0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80,0x1b,0x36,0x6c,0xd8,0xab,0x4d,0x9a,0x2f,0x5e,0xbc,0x63,0xc6,0x97,0x35,0x6a,0xd4,0xb3,0x7d,0xfa,0xef,0xc5,0x91,0x39,0x72,0xe4,0xd3,0xbd,0x61,0xc2,0x9f,0x2

2、5,0x4a,0x94,0x33,0x66,0xcc,0x83,0x1d,0x3a,0x74,0xe8,0xcb,0x8d,0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80,0x1b,0x36,0x6c,0xd8,0xab,0x4d,0x9a,0x2f,0x5e,0xbc,0x63,0xc6,0x97,0x35,0x6a,0xd4,0xb3,0x7d,0xfa,0xef,0xc5,0x91,0x39,0x72,0xe4,0xd3,0xbd,0x61,0xc2,0x9f,0x25,0x4a,0x94,0x33,0x66,0xcc,0x83,0x1d,0x3a,0x7

3、4,0xe8,0xcb,0x8d,0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80,0x1b,0x36,0x6c,0xd8,0xab,0x4d,0x9a,0x2f,0x5e,0xbc,0x63,0xc6,0x97,0x35,0x6a,0xd4,0xb3,0x7d,0xfa,0xef,0xc5,0x91,0x39,0x72,0xe4,0xd3,0xbd,0x61,0xc2,0x9f,0x25,0x4a,0x94,0x33,0x66,0xcc,0x83,0x1d,0x3a,0x74,0xe8,0xcb,0x8d,0x01,0x02,0x04,0x08,0x10,0x2

4、0,0x40,0x80,0x1b,0x36,0x6c,0xd8,0xab,0x4d,0x9a,0x2f,0x5e,0xbc,0x63,0xc6,0x97,0x35,0x6a,0xd4,0xb3,0x7d,0xfa,0xef,0xc5,0x91,0x39,0x72,0xe4,0xd3,0xbd,0x61,0xc2,0x9f,0x25,0x4a,0x94,0x33,0x66,0xcc,0x83,0x1d,0x3a,0x74,0xe8,0xcb,0x8d,0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80,0x1b,0x36,0x6c,0xd8,0xab,0x4d,0x9

5、a,0x2f,0x5e,0xbc,0x63,0xc6,0x97,0x35,0x6a,0xd4,0xb3,0x7d,0xfa,0xef,0xc5,0x91,0x39,0x72,0xe4,0xd3,0xbd,0x61,0xc2,0x9f,0x25,0x4a,0x94,0x33,0x66,0xcc,0x83,0x1d,0x3a,0x74,0xe8,0xcb;(temp0=getSBoxValue(temp0);temp1=getSBoxValue(temp1);temp2=getSBoxValue(temp2);temp3=getSBoxValue(temp3);temp0=temp0ARconi/

6、Nk;elseif(Nk>6&&i%Nk=4)(temp0=getSBoxValue(temp0);temp1=getSBoxValue(temp1);temp2=getSBoxValue(temp2);temp3=getSBoxValue(temp3);RoundKeyi*4+0=RoundKey(i-Nk)*4+0Atemp0;RoundKeyi*4+1=RoundKey(i-Nk)*4+1atemp1;RoundKeyi*4+2=RoundKey(i-Nk)*4+2atemp2;RoundKeyi*4+3=RoundKey(i-Nk)*4+3atemp3;i+;vo

7、idAddRoundKey(intround)(inti,j;for(i=0;i<4;i+)(for(j=0;j<4;j+)(statejia=RoundKeyround*Nb*4+i*Nb+j;voidInvSubBytes()inti,j;for(i=0;i<4;i+)(for(j=0;j<4;j+)(stateij=getSBoxInvert(stateij);Sothefirstrowisnotshifted.voidInvShiftRows()(unsignedchartemp;voidInvMixColumns()(inti;unsignedchara,b,

8、c,d;for(i=0;i<4;i+)(a=state0i;b=state1i;c=state2i;d=state3i;state0i=Multiply(a,0x0e)AMultiply(b,0x0b)AMultiply(c,0x0d)Multiply(d,0x09);state1i=Multiply(a,0x09)AMultiply(b,0x0e)AMultiply(c,0x0b)Multiply(d,0x0d);state2i=Multiply(a,0x0d)aMultiply(b,0x09)aMultiply(c,0x0e)Multiply(d,0x0b);state3i=Mult

9、iply(a,0x0b)aMultiply(b,0x0d)aMultiply(c,0x09)Multiply(d,0x0e);voidInvCipher()(inti,j,round=0;for(i=0;i<4;i+)(for(j=0;j<4;j+)(stateji=ini*4+j;AddRoundKey(Nr);for(round=Nr-1;round>0;round-)(InvShiftRows();InvSubBytes();AddRoundKey(round);InvMixColumns();InvShiftRows();InvSubBytes();AddRoundK

10、ey(0);for(i=0;i<4;i+)for(j=0;j<4;j+)outi*4+j=stateji;voidSubBytes()inti,j;for(i=0;i<4;i+)for(j=0;j<4;j+)stateij=getSBoxValue(stateij);Sothefirstrowisnotshifted.voidShiftRows()(unsignedchartemp;voidCipher()(inti,j,round=0;for(i=0;i<4;i+)(for(j=0;j<4;j+)(stateji=ini*4+j;AddRoundKey(0

11、);for(round=1;round<Nr;round+)(SubBytes();ShiftRows();MixColumns();AddRoundKey(round);SubBytes();ShiftRows();AddRoundKey(Nr);for(i=0;i<4;i+)(for(j=0;j<4;j+)(outi*4+j=stateji;char*encrypt(char*str,char*key)(inti,j,Nl;doublelen;char*newstr;Nk=Nc/32;Nr=Nk+6;len=strlen(str);Nl=(int)ceil(len/16)

12、;/printf("Nl:%dn”,Nl);newstr=(char*)malloc(Nl*32);memset(newstr,0,sizeof(newstr);for(i=0;i<Nl;i+)for(j=0;j<Nk*4;j+)(Keyj=keyj;inj=stri*16+j;KeyExpansion();Cipher();memcpy(&newstri*32,out,32);returnnewstr;char*decrypt(char*str,char*key)(inti,j,len,Nl;char*newstr;Nk=Nc/32;Nr=Nk+6;len=st

13、rlen(str);Nl=(int)ceil(len/16);newstr=(char*)malloc(16*Nl);memset(newstr,0,sizeof(newstr);for(i=0;i<Nl;i+)(for(j=0;j<Nk*4;j+)(Keyj=keyj;inj=stri*16+j;KeyExpansion();InvCipher();memcpy(&newstri*32,out,32);returnnewstr;intmain()(charstr_1128;/存明文charstr_2128;/存加密密鑰charstr_3128;/存解密密鑰char*str;char*str2;printf("請輸入明文：n");scanf("%s”,str_1);printf("請輸入加密密鑰:n&qu