问题描述
我目前正在尝试开发一个聊天应用程序，该应用程序将山茶花128位作为其加密算法。我从[此处] [1]的官方页面成功构建并运行了代码。问题在于对Integer数据类型进行加密的算法。当我尝试加密String消息时，我将其转换为ASCII形式，但这给了我
线程“主”中的异常java.lang.NumberFormatException：对于输入字符串：“ 10410110810811132119111114108100” 在java.lang.NumberFormatException.forInputString（NumberFormatException.java:65） 在java.lang.Integer.parseInt（Integer.java:583） 在java.lang.Integer.parseInt（Integer.java:615） 在Camellia.main（Camellia.java:54）
。我知道发生这种情况是因为ASCII码太长。但是我真的很卡住，毫无头绪，我该如何使用算法进行字符串加密。下面是我的主要代码
int[] key = {987777,1,2,3}; // 128 bit key example
int[] keyTable = new int[52];
Camellia n=new Camellia();
n.Camellia_Ekeygen(key,keyTable);
String c = "";
String str = "hello world";
System.out.println(str);
BigInteger bigInt;
byte[] bytes;
try{
bytes = str.getBytes("US-ASCII");
for(int i=0; i<str.length(); i++){
System.out.print(bytes[i]+",");
c += String.valueOf(bytes[i]);
}
System.out.println("");
bigInt = new BigInteger(c);
System.out.println(bigInt);
}catch(Exception e){};
int C = Integer.parseInt(c);
int[] plaintext = {C,5,6,7}; // 128 bit plaintext block example
int[] ciphertext = new int[4];
n.Camellia_EncryptBlock(plaintext,keyTable,ciphertext);
n.Camellia_DecryptBlock(ciphertext,plaintext);
这是我的完整代码：-
import java.math.BigInteger;
public class Camellia{
public static void main(String[] args) {
int[] key = {987777,3}; // 128 bit key example
int[] keyTable = new int[52];
Camellia n=new Camellia();
n.Camellia_Ekeygen(key,plaintext);
}
/*
*-------------------------------------------------------------------------------------------------
* S-Box data
*-------------------------------------------------------------------------------------------------
*/
private final int SBox1_1110[] =
{
0x70707000,0x82828200,0x2c2c2c00,0xececec00,0xb3b3b300,0x27272700,0xc0c0c000,0xe5e5e500,0xe4e4e400,0x85858500,0x57575700,0x35353500,0xeaeaea00,0x0c0c0c00,0xaeaeae00,0x41414100,0x23232300,0xefefef00,0x6b6b6b00,0x93939300,0x45454500,0x19191900,0xa5a5a500,0x21212100,0xededed00,0x0e0e0e00,0x4f4f4f00,0x4e4e4e00,0x1d1d1d00,0x65656500,0x92929200,0xbdbdbd00,0x86868600,0xb8b8b800,0xafafaf00,0x8f8f8f00,0x7c7c7c00,0xebebeb00,0x1f1f1f00,0xcecece00,0x3e3e3e00,0x30303000,0xdcdcdc00,0x5f5f5f00,0x5e5e5e00,0xc5c5c500,0x0b0b0b00,0x1a1a1a00,0xa6a6a600,0xe1e1e100,0x39393900,0xcacaca00,0xd5d5d500,0x47474700,0x5d5d5d00,0x3d3d3d00,0xd9d9d900,0x01010100,0x5a5a5a00,0xd6d6d600,0x51515100,0x56565600,0x6c6c6c00,0x4d4d4d00,0x8b8b8b00,0x0d0d0d00,0x9a9a9a00,0x66666600,0xfbfbfb00,0xcccccc00,0xb0b0b000,0x2d2d2d00,0x74747400,0x12121200,0x2b2b2b00,0x20202000,0xf0f0f000,0xb1b1b100,0x84848400,0x99999900,0xdfdfdf00,0x4c4c4c00,0xcbcbcb00,0xc2c2c200,0x34343400,0x7e7e7e00,0x76767600,0x05050500,0x6d6d6d00,0xb7b7b700,0xa9a9a900,0x31313100,0xd1d1d100,0x17171700,0x04040400,0xd7d7d700,0x14141400,0x58585800,0x3a3a3a00,0x61616100,0xdedede00,0x1b1b1b00,0x11111100,0x1c1c1c00,0x32323200,0x0f0f0f00,0x9c9c9c00,0x16161600,0x53535300,0x18181800,0xf2f2f200,0x22222200,0xfefefe00,0x44444400,0xcfcfcf00,0xb2b2b200,0xc3c3c300,0xb5b5b500,0x7a7a7a00,0x91919100,0x24242400,0x08080800,0xe8e8e800,0xa8a8a800,0x60606000,0xfcfcfc00,0x69696900,0x50505000,0xaaaaaa00,0xd0d0d000,0xa0a0a000,0x7d7d7d00,0xa1a1a100,0x89898900,0x62626200,0x97979700,0x54545400,0x5b5b5b00,0x1e1e1e00,0x95959500,0xe0e0e000,0xffffff00,0x64646400,0xd2d2d200,0x10101000,0xc4c4c400,0x00000000,0x48484800,0xa3a3a300,0xf7f7f700,0x75757500,0xdbdbdb00,0x8a8a8a00,0x03030300,0xe6e6e600,0xdadada00,0x09090900,0x3f3f3f00,0xdddddd00,0x94949400,0x87878700,0x5c5c5c00,0x83838300,0x02020200,0xcdcdcd00,0x4a4a4a00,0x90909000,0x33333300,0x73737300,0x67676700,0xf6f6f600,0xf3f3f300,0x9d9d9d00,0x7f7f7f00,0xbfbfbf00,0xe2e2e200,0x52525200,0x9b9b9b00,0xd8d8d800,0x26262600,0xc8c8c800,0x37373700,0xc6c6c600,0x3b3b3b00,0x81818100,0x96969600,0x6f6f6f00,0x4b4b4b00,0x13131300,0xbebebe00,0x63636300,0x2e2e2e00,0xe9e9e900,0x79797900,0xa7a7a700,0x8c8c8c00,0x9f9f9f00,0x6e6e6e00,0xbcbcbc00,0x8e8e8e00,0x29292900,0xf5f5f500,0xf9f9f900,0xb6b6b600,0x2f2f2f00,0xfdfdfd00,0xb4b4b400,0x59595900,0x78787800,0x98989800,0x06060600,0x6a6a6a00,0xe7e7e700,0x46464600,0x71717100,0xbababa00,0xd4d4d400,0x25252500,0xababab00,0x42424200,0x88888800,0xa2a2a200,0x8d8d8d00,0xfafafa00,0x72727200,0x07070700,0xb9b9b900,0x55555500,0xf8f8f800,0xeeeeee00,0xacacac00,0x0a0a0a00,0x36363600,0x49494900,0x2a2a2a00,0x68686800,0x3c3c3c00,0x38383800,0xf1f1f100,0xa4a4a400,0x40404000,0x28282800,0xd3d3d300,0x7b7b7b00,0xbbbbbb00,0xc9c9c900,0x43434300,0xc1c1c100,0x15151500,0xe3e3e300,0xadadad00,0xf4f4f400,0x77777700,0xc7c7c700,0x80808000,0x9e9e9e00
};
private int SBox4_4404[] =
{
0x70700070,0x2c2c002c,0xb3b300b3,0xc0c000c0,0xe4e400e4,0x57570057,0xeaea00ea,0xaeae00ae,0x23230023,0x6b6b006b,0x45450045,0xa5a500a5,0xeded00ed,0x4f4f004f,0x1d1d001d,0x92920092,0x86860086,0xafaf00af,0x7c7c007c,0x1f1f001f,0x3e3e003e,0xdcdc00dc,0x5e5e005e,0x0b0b000b,0xa6a600a6,0x39390039,0xd5d500d5,0x5d5d005d,0xd9d900d9,0x5a5a005a,0x51510051,0x6c6c006c,0x8b8b008b,0x9a9a009a,0xfbfb00fb,0xb0b000b0,0x74740074,0x2b2b002b,0xf0f000f0,0x84840084,0xdfdf00df,0xcbcb00cb,0x34340034,0x76760076,0x6d6d006d,0xa9a900a9,0xd1d100d1,0x04040004,0x14140014,0x3a3a003a,0xdede00de,0x11110011,0x32320032,0x9c9c009c,0x53530053,0xf2f200f2,0xfefe00fe,0xcfcf00cf,0xc3c300c3,0x7a7a007a,0x24240024,0xe8e800e8,0x60600060,0x69690069,0xaaaa00aa,0xa0a000a0,0xa1a100a1,0x62620062,0x54540054,0x1e1e001e,0xe0e000e0,0x64640064,0x10100010,0xa3a300a3,0x75750075,0x8a8a008a,0xe6e600e6,0x09090009,0xdddd00dd,0x87870087,0x83830083,0xcdcd00cd,0x90900090,0x73730073,0xf6f600f6,0x9d9d009d,0xbfbf00bf,0x52520052,0xd8d800d8,0xc8c800c8,0xc6c600c6,0x81810081,0x6f6f006f,0x13130013,0x63630063,0xe9e900e9,0xa7a700a7,0x9f9f009f,0xbcbc00bc,0x29290029,0xf9f900f9,0x2f2f002f,0xb4b400b4,0x78780078,0x06060006,0xe7e700e7,0x71710071,0xd4d400d4,0xabab00ab,0x88880088,0x8d8d008d,0x72720072,0xb9b900b9,0xf8f800f8,0xacac00ac,0x36360036,0x2a2a002a,0x3c3c003c,0xf1f100f1,0x40400040,0xd3d300d3,0xbbbb00bb,0x43430043,0x15150015,0xadad00ad,0x77770077,0x80800080,0x82820082,0xecec00ec,0x27270027,0xe5e500e5,0x85850085,0x35350035,0x0c0c000c,0x41410041,0xefef00ef,0x93930093,0x19190019,0x21210021,0x0e0e000e,0x4e4e004e,0x65650065,0xbdbd00bd,0xb8b800b8,0x8f8f008f,0xebeb00eb,0xcece00ce,0x30300030,0x5f5f005f,0xc5c500c5,0x1a1a001a,0xe1e100e1,0xcaca00ca,0x47470047,0x3d3d003d,0x01010001,0xd6d600d6,0x56560056,0x4d4d004d,0x0d0d000d,0x66660066,0xcccc00cc,0x2d2d002d,0x12120012,0x20200020,0xb1b100b1,0x99990099,0x4c4c004c,0xc2c200c2,0x7e7e007e,0x05050005,0xb7b700b7,0x31310031,0x17170017,0xd7d700d7,0x58580058,0x61610061,0x1b1b001b,0x1c1c001c,0x0f0f000f,0x16160016,0x18180018,0x22220022,0x44440044,0xb2b200b2,0xb5b500b5,0x91910091,0x08080008,0xa8a800a8,0xfcfc00fc,0x50500050,0xd0d000d0,0x7d7d007d,0x89890089,0x97970097,0x5b5b005b,0x95950095,0xffff00ff,0xd2d200d2,0xc4c400c4,0x48480048,0xf7f700f7,0xdbdb00db,0x03030003,0xdada00da,0x3f3f003f,0x94940094,0x5c5c005c,0x02020002,0x4a4a004a,0x33330033,0x67670067,0xf3f300f3,0x7f7f007f,0xe2e200e2,0x9b9b009b,0x26260026,0x37370037,0x3b3b003b,0x96960096,0x4b4b004b,0xbebe00be,0x2e2e002e,0x79790079,0x8c8c008c,0x6e6e006e,0x8e8e008e,0xf5f500f5,0xb6b600b6,0xfdfd00fd,0x59590059,0x98980098,0x6a6a006a,0x46460046,0xbaba00ba,0x25250025,0x42420042,0xa2a200a2,0xfafa00fa,0x07070007,0x55550055,0xeeee00ee,0x0a0a000a,0x49490049,0x68680068,0x38380038,0xa4a400a4,0x28280028,0x7b7b007b,0xc9c900c9,0xc1c100c1,0xe3e300e3,0xf4f400f4,0xc7c700c7,0x9e9e009e
};
private final int SBox2_0222[] =
{
0x00e0e0e0,0x00050505,0x00585858,0x00d9d9d9,0x00676767,0x004e4e4e,0x00818181,0x00cbcbcb,0x00c9c9c9,0x000b0b0b,0x00aeaeae,0x006a6a6a,0x00d5d5d5,0x00181818,0x005d5d5d,0x00828282,0x00464646,0x00dfdfdf,0x00d6d6d6,0x00272727,0x008a8a8a,0x00323232,0x004b4b4b,0x00424242,0x00dbdbdb,0x001c1c1c,0x009e9e9e,0x009c9c9c,0x003a3a3a,0x00cacaca,0x00252525,0x007b7b7b,0x000d0d0d,0x00717171,0x005f5f5f,0x001f1f1f,0x00f8f8f8,0x00d7d7d7,0x003e3e3e,0x009d9d9d,0x007c7c7c,0x00606060,0x00b9b9b9,0x00bebebe,0x00bcbcbc,0x008b8b8b,0x00161616,0x00343434,0x004d4d4d,0x00c3c3c3,0x00727272,0x00959595,0x00ababab,0x008e8e8e,0x00bababa,0x007a7a7a,0x00b3b3b3,0x00020202,0x00b4b4b4,0x00adadad,0x00a2a2a2,0x00acacac,0x00d8d8d8,0x009a9a9a,0x00171717,0x001a1a1a,0x00353535,0x00cccccc,0x00f7f7f7,0x00999999,0x00616161,0x005a5a5a,0x00e8e8e8,0x00242424,0x00565656,0x00404040,0x00e1e1e1,0x00636363,0x00090909,0x00333333,0x00bfbfbf,0x00989898,0x00979797,0x00858585,0x00686868,0x00fcfcfc,0x00ececec,0x000a0a0a,0x00dadada,0x006f6f6f,0x00535353,0x00626262,0x00a3a3a3,0x002e2e2e,0x00080808,0x00afafaf,0x00282828,0x00b0b0b0,0x00747474,0x00c2c2c2,0x00bdbdbd,0x00363636,0x00222222,0x00383838,0x00646464,0x001e1e1e,0x00393939,0x002c2c2c,0x00a6a6a6,0x00303030,0x00e5e5e5,0x00444444,0x00fdfdfd,0x00888888,0x009f9f9f,0x00656565,0x00878787,0x006b6b6b,0x00f4f4f4,0x00232323,0x00484848,0x00101010,0x00d1d1d1,0x00515151,0x00c0c0c0,0x00f9f9f9,0x00d2d2d2,0x00a0a0a0,0x00555555,0x00a1a1a1,0x00414141,0x00fafafa,0x00434343,0x00131313,0x00c4c4c4,0x002f2f2f,0x00a8a8a8,0x00b6b6b6,0x003c3c3c,0x002b2b2b,0x00c1c1c1,0x00ffffff,0x00c8c8c8,0x00a5a5a5,0x00202020,0x00898989,0x00909090,0x00474747,0x00efefef,0x00eaeaea,0x00b7b7b7,0x00151515,0x00060606,0x00cdcdcd,0x00b5b5b5,0x00121212,0x007e7e7e,0x00bbbbbb,0x00292929,0x000f0f0f,0x00b8b8b8,0x00070707,0x00040404,0x009b9b9b,0x00949494,0x00212121,0x00666666,0x00e6e6e6,0x00cecece,0x00ededed,0x00e7e7e7,0x003b3b3b,0x00fefefe,0x007f7f7f,0x00c5c5c5,0x00a4a4a4,0x00373737,0x00b1b1b1,0x004c4c4c,0x00919191,0x006e6e6e,0x008d8d8d,0x00767676,0x00030303,0x002d2d2d,0x00dedede,0x00969696,0x00262626,0x007d7d7d,0x00c6c6c6,0x005c5c5c,0x00d3d3d3,0x00f2f2f2,0x004f4f4f,0x00191919,0x003f3f3f,0x00dcdcdc,0x00797979,0x001d1d1d,0x00525252,0x00ebebeb,0x00f3f3f3,0x006d6d6d,0x005e5e5e,0x00fbfbfb,0x00696969,0x00b2b2b2,0x00f0f0f0,0x00313131,0x000c0c0c,0x00d4d4d4,0x00cfcfcf,0x008c8c8c,0x00e2e2e2,0x00757575,0x00a9a9a9,0x004a4a4a,0x00575757,0x00848484,0x00111111,0x00454545,0x001b1b1b,0x00f5f5f5,0x00e4e4e4,0x000e0e0e,0x00737373,0x00aaaaaa,0x00f1f1f1,0x00dddddd,0x00595959,0x00141414,0x006c6c6c,0x00929292,0x00545454,0x00d0d0d0,0x00787878,0x00707070,0x00e3e3e3,0x00494949,0x00808080,0x00505050,0x00a7a7a7,0x00f6f6f6,0x00777777,0x00939393,0x00868686,0x00838383,0x002a2a2a,0x00c7c7c7,0x005b5b5b,0x00e9e9e9,0x00eeeeee,0x008f8f8f,0x00010101,0x003d3d3d
};
private final int SBox3_3033[] =
{
0x38003838,0x41004141,0x16001616,0x76007676,0xd900d9d9,0x93009393,0x60006060,0xf200f2f2,0x72007272,0xc200c2c2,0xab00abab,0x9a009a9a,0x75007575,0x06000606,0x57005757,0xa000a0a0,0x91009191,0xf700f7f7,0xb500b5b5,0xc900c9c9,0xa200a2a2,0x8c008c8c,0xd200d2d2,0x90009090,0xf600f6f6,0x07000707,0xa700a7a7,0x27002727,0x8e008e8e,0xb200b2b2,0x49004949,0xde00dede,0x43004343,0x5c005c5c,0xd700d7d7,0xc700c7c7,0x3e003e3e,0xf500f5f5,0x8f008f8f,0x67006767,0x1f001f1f,0x18001818,0x6e006e6e,0xaf00afaf,0x2f002f2f,0xe200e2e2,0x85008585,0x0d000d0d,0x53005353,0xf000f0f0,0x9c009c9c,0x65006565,0xea00eaea,0xa300a3a3,0xae00aeae,0x9e009e9e,0xec00ecec,0x80008080,0x2d002d2d,0x6b006b6b,0xa800a8a8,0x2b002b2b,0x36003636,0xa600a6a6,0xc500c5c5,0x86008686,0x4d004d4d,0x33003333,0xfd00fdfd,0x66006666,0x58005858,0x96009696,0x3a003a3a,0x09000909,0x95009595,0x10001010,0x78007878,0xd800d8d8,0x42004242,0xcc00cccc,0xef00efef,0x26002626,0xe500e5e5,0x61006161,0x1a001a1a,0x3f003f3f,0x3b003b3b,0x82008282,0xb600b6b6,0xdb00dbdb,0xd400d4d4,0x98009898,0xe800e8e8,0x8b008b8b,0x02000202,0xeb00ebeb,0x0a000a0a,0x2c002c2c,0x1d001d1d,0xb000b0b0,0x6f006f6f,0x8d008d8d,0x88008888,0x0e000e0e,0x19001919,0x87008787,0x4e004e4e,0x0b000b0b,0xa900a9a9,0x0c000c0c,0x79007979,0x11001111,0x7f007f7f,0x22002222,0xe700e7e7,0x59005959,0xe100e1e1,0xda00dada,0x3d003d3d,0xc800c8c8,0x12001212,0x04000404,0x74007474,0x54005454,0x30003030,0x7e007e7e,0xb400b4b4,0x28002828,0x55005555,0x68006868,0x50005050,0xbe00bebe,0xd000d0d0,0xc400c4c4,0x31003131,0xcb00cbcb,0x2a002a2a,0xad00adad,0x0f000f0f,0xca00caca,0x70007070,0xff00ffff,0x32003232,0x69006969,0x08000808,0x62006262,0x24002424,0xd100d1d1,0xfb00fbfb,0xba00baba,0xed00eded,0x45004545,0x81008181,0x73007373,0x6d006d6d,0x84008484,0x9f009f9f,0xee00eeee,0x4a004a4a,0xc300c3c3,0x2e002e2e,0xc100c1c1,0x01000101,0xe600e6e6,0x25002525,0x48004848,0x99009999,0xb900b9b9,0xb300b3b3,0x7b007b7b,0xf900f9f9,0xce00cece,0xbf00bfbf,0xdf00dfdf,0x71007171,0x29002929,0xcd00cdcd,0x6c006c6c,0x13001313,0x64006464,0x9b009b9b,0x63006363,0x9d009d9d,0xc000c0c0,0x4b004b4b,0xb700b7b7,0xa500a5a5,0x89008989,0x5f005f5f,0xb100b1b1,0x17001717,0xf400f4f4,0xbc00bcbc,0xd300d3d3,0x46004646,0xcf00cfcf,0x37003737,0x5e005e5e,0x47004747,0x94009494,0xfa00fafa,0xfc00fcfc,0x5b005b5b,0x97009797,0xfe00fefe,0x5a005a5a,0xac00acac,0x3c003c3c,0x4c004c4c,0x03000303,0x35003535,0xf300f3f3,0x23002323,0xb800b8b8,0x5d005d5d,0x6a006a6a,0x92009292,0xd500d5d5,0x21002121,0x44004444,0x51005151,0xc600c6c6,0x7d007d7d,0x39003939,0x83008383,0xdc00dcdc,0xaa00aaaa,0x7c007c7c,0x77007777,0x56005656,0x05000505,0x1b001b1b,0xa400a4a4,0x15001515,0x34003434,0x1e001e1e,0x1c001c1c,0xf800f8f8,0x52005252,0x20002020,0x14001414,0xe900e9e9,0xbd00bdbd,0xdd00dddd,0xe400e4e4,0xa100a1a1,0xe000e0e0,0x8a008a8a,0xf100f1f1,0xd600d6d6,0x7a007a7a,0xbb00bbbb,0xe300e3e3,0x40004040,0x4f004f4f
};
private int ct0,ct1,ct2,ct3;
private int pt0,pt1,pt2,pt3;
private int RightRotate(int x,int s){
return (((x) >>> (s)) + ((x) << (32 - s)));
};
private long LeftRotate(int x,int s){
return ((x) << (s)) + ((x) >>> (32 - s)) ;
};
/*
*-------------------------------------------------------------------------------------------------
* Computes the exclusive-or of x and y and and assigns it to z,ie,*
* z = x ^ y
*-------------------------------------------------------------------------------------------------
*/
private void XorBlock(int[] x,int x_,int[] y,int y_,int[] z,int z_){
z[0 + z_] = x[0 + x_] ^ y[0 + y_];
z[1 + z_] = x[1 + x_] ^ y[1 + y_];
z[2 + z_] = x[2 + x_] ^ y[2 + y_];
z[3 + z_] = x[3 + x_] ^ y[3 + y_];
};
/*
*-------------------------------------------------------------------------------------------------
* This function is only used in key generation.
*-------------------------------------------------------------------------------------------------
*/
private static void RotBlock
(
int x[],int n,int y[],int y_
)
{
int r = (n & 31); /* Must not be 0 */
int idx = (n >>> 5);
int idx1 = (idx + 1) & 3;
int idx2 = (idx1 + 1) & 3;
y[0 + y_] = (x[idx + x_] << r) | (x[idx1 + x_] >>> (32 - r));
y[1 + y_] = (x[idx1 + x_] << r) | (x[idx2 + x_] >>> (32 - r));
}
/* Key generation constants */
private final int SIGMA1[] = {
0xa09e667f,0x3bcc908b,0xb67ae858,0x4caa73b2};
private final int SIGMA2[] = {
0xc6ef372f,0xe94f82be,0x54ff53a5,0xf1d36f1c};
/*
* As for this variable,it is used in 192/256 bit version camellia.
*/
private final int SIGMA3[] = {
0x10e527fa,0xde682d1d,0xb05688c2,0xb3e6c1fd};
private int KSFT1[] = {
0,64,15,79,30,94,45,109,124,60,77,13,111,47,47
};
private int KIDX1[] = {
0,8,8
};
/*
* As for this variable,it is used in 192/256 bit version camellia.
*/
private int KSFT2[] = {
0,47
};
/*
* As for this variable,it is used in 192/256 bit version camellia.
*/
private int KIDX2[] = {
0,12,4,12
};
private void Camellia_Feistel
(
int[] x,int[] k,int k_,int key_offset
)
{
int D,U;
int s1,s2;
s1 = x[0 + x_] ^ k[0 + k_];
U = SBox4_4404[s1 & 0x000000FF];
U ^= SBox3_3033[(s1 >>> 8 ) & 0x000000FF];
U ^= SBox2_0222[(s1 >>> 16) & 0x000000FF];
U ^= SBox1_1110[(s1 >>> 24) & 0x000000FF];
s2 = x[1 + x_] ^ k[1 + k_];
D = SBox1_1110[s2 & 0x000000FF];
D ^= SBox4_4404[(s2 >>> 8 ) & 0x000000FF];
D ^= SBox3_3033[(s2 >>> 16) & 0x000000FF];
D ^= SBox2_0222[(s2 >>> 24) & 0x000000FF];
x[2 + x_] ^= D ^ U ;
x[3 + x_] ^= D ^ U ^ RightRotate(U,8);
s1 = x[2 + x_] ^ k[key_offset + k_];
U = SBox4_4404[s1 & 0x000000FF];
U ^= SBox3_3033[(s1 >>> 8 ) & 0x000000FF];
U ^= SBox2_0222[(s1 >>> 16) & 0x000000FF];
U ^= SBox1_1110[(s1 >>> 24) & 0x000000FF];
s2 = x[3 + x_] ^ k[key_offset+1 + k_];
D = SBox1_1110[s2 & 0x000000FF];
D ^= SBox4_4404[(s2 >>> 8 ) & 0x000000FF];
D ^= SBox3_3033[(s2 >>> 16) & 0x000000FF];
D ^= SBox2_0222[(s2 >>> 24) & 0x000000FF];
x[0 + x_] ^= D ^ U ;
x[1 + x_] ^= D ^ U ^ RightRotate(U,8) ;
}
/*
* Optimized F Function
*/
private void Camellia_Feistel_Enc
(
int[] k,int k_
)
{
int D,U;
int s1,s2;
s1 = ct0 ^ k[0 + k_];
U = SBox4_4404[s1 & 0x000000FF];
U ^= SBox3_3033[(s1 >>> 8 ) & 0x000000FF];
U ^= SBox2_0222[(s1 >>> 16) & 0x000000FF];
U ^= SBox1_1110[(s1 >>> 24) & 0x000000FF];
s2 = ct1 ^ k[1 + k_];
D = SBox1_1110[s2 & 0x000000FF];
D ^= SBox4_4404[(s2 >>> 8 ) & 0x000000FF];
D ^= SBox3_3033[(s2 >>> 16) & 0x000000FF];
D ^= SBox2_0222[(s2 >>> 24) & 0x000000FF];
ct2 ^= D ^ U ;
ct3 ^= D ^ U ^ RightRotate(U,8);
s1 = ct2 ^ k[2 + k_];
U = SBox4_4404[s1 & 0x000000FF];
U ^= SBox3_3033[(s1 >>> 8 ) & 0x000000FF];
U ^= SBox2_0222[(s1 >>> 16) & 0x000000FF];
U ^= SBox1_1110[(s1 >>> 24) & 0x000000FF];
s2 = ct3 ^ k[3 + k_];
D = SBox1_1110[s2 & 0x000000FF];
D ^= SBox4_4404[(s2 >>> 8 ) & 0x000000FF];
D ^= SBox3_3033[(s2 >>> 16) & 0x000000FF];
D ^= SBox2_0222[(s2 >>> 24) & 0x000000FF];
ct0 ^= D ^ U ;
ct1 ^= D ^ U ^ RightRotate(U,8) ;
}
private void Camellia_Feistel_Dec(int[] k,int k_)
{
int D,U;
int s1,s2;
s1 = pt0 ^ k[0 + k_];
U = SBox4_4404[s1 & 0x000000FF];
U ^= SBox3_3033[(s1 >>> 8 ) & 0x000000FF];
U ^= SBox2_0222[(s1 >>> 16) & 0x000000FF];
U ^= SBox1_1110[(s1 >>> 24) & 0x000000FF];
s2 = pt1 ^ k[1 + k_];
D = SBox1_1110[s2 & 0x000000FF];
D ^= SBox4_4404[(s2 >>> 8 ) & 0x000000FF];
D ^= SBox3_3033[(s2 >>> 16) & 0x000000FF];
D ^= SBox2_0222[(s2 >>> 24) & 0x000000FF];
pt2 ^= D ^ U ;
pt3 ^= D ^ U ^ RightRotate(U,8);
s1 = pt2 ^ k[k_ - 2];
U = SBox4_4404[s1 & 0x000000FF];
U ^= SBox3_3033[(s1 >>> 8 ) & 0x000000FF];
U ^= SBox2_0222[(s1 >>> 16) & 0x000000FF];
U ^= SBox1_1110[(s1 >>> 24) & 0x000000FF];
s2 = pt3 ^ k[k_ - 1];
D = SBox1_1110[s2 & 0x000000FF];
D ^= SBox4_4404[(s2 >>> 8 ) & 0x000000FF];
D ^= SBox3_3033[(s2 >>> 16) & 0x000000FF];
D ^= SBox2_0222[(s2 >>> 24) & 0x000000FF];
pt0 ^= D ^ U ;
pt1 ^= D ^ U ^ RightRotate(U,8) ;
}
public void Camellia_Ekeygen(int[] rawKey,int[] keyTable){
int t[] = new int[16];
int i;
memcpy(t,rawKey,4);
for (i = 4; i < 8; i++) t[i] = 0;
XorBlock(t,t,8);
Camellia_Feistel(t,SIGMA1,2);
XorBlock(t,SIGMA2,2);
memcpy(keyTable,16);
memcpy(keyTable,8);
for (i = 4; i < 26; i += 2 ){
RotBlock(t,KIDX1[i + 0],KSFT1[i + 0],i*2);
RotBlock(t,KIDX1[i + 1],KSFT1[i + 1],i*2+2);
}
}
public void Camellia_EncryptBlock(int plaintext[],int keyTable[],int ciphertext[]){
int j;
int grandRounds;
int k = 4;
ct0 = keyTable[0] ^ (plaintext[0]);
ct1 = keyTable[1] ^ (plaintext[1]);
ct2 = keyTable[2] ^ (plaintext[2]);
ct3 = keyTable[3] ^ (plaintext[3]);
for (grandRounds = 0; grandRounds < 3; grandRounds++)
{
for (j = 0; j < 6; j+=2,k += 4)
Camellia_Feistel_Enc(keyTable,k);
if (grandRounds < 2)
{
ct1 ^= LeftRotate(ct0 & keyTable[k + 0],1);
ct0 ^= ct1 | keyTable[k + 1];
ct2 ^= ct3 | keyTable[k + 3];
ct3 ^= LeftRotate(ct2 & keyTable[k + 2],1);
k += 4;
}
}
ciphertext[0] = keyTable[k + 0] ^ (ct2);
ciphertext[1] = keyTable[k + 1] ^ (ct3);
ciphertext[2] = keyTable[k + 2] ^ (ct0);
ciphertext[3] = keyTable[k + 3] ^ (ct1); System.out.println(String.valueOf(ciphertext[0])+","+String.valueOf(ciphertext[1])+","+String.valueOf(ciphertext[2])+","+String.valueOf(ciphertext[3]));
}
public void Camellia_DecryptBlock
(
int ciphertext[],int plaintext[]
)
{
int grandRounds;
int j;
int k;
k = 48;
pt0 = keyTable[k + 0] ^ (ciphertext[0]);
pt1 = keyTable[k + 1] ^ (ciphertext[1]);
pt2 = keyTable[k + 2] ^ (ciphertext[2]);
pt3 = keyTable[k + 3] ^ (ciphertext[3]);
k -= 2;
for (grandRounds = 0; grandRounds < 3; grandRounds++)
{
for (j = 0; j < 6; j+=2,k -= 4)
Camellia_Feistel_Dec(keyTable,k);
if (grandRounds < 2)
{
pt1 ^= LeftRotate(pt0 & keyTable[k + 0],1);
pt0 ^= pt1 | keyTable[k + 1];
pt2 ^= pt3 | keyTable[k - 1];
pt3 ^= LeftRotate(pt2 & keyTable[k - 2],1);
k -= 4;
}
}
k -= 2;
plaintext[0] = keyTable[k + 0] ^ (pt2);
plaintext[1] = keyTable[k + 1] ^ (pt3);
plaintext[2] = keyTable[k + 2] ^ (pt0);
plaintext[3] = keyTable[k + 3] ^ (pt1);
int C = plaintext[0];
//char c =(char) C;
String c = String.valueOf(C);
asciiToSentence(c,c.length());
System.out.println(c+","+String.valueOf(plaintext[1])+","+String.valueOf(plaintext[2])+","+String.valueOf(plaintext[3]));
}
private static final void memcpy(int[] dst,int dst_,int[] src,int src_,int leng)
{
for(int i=0; i < leng ;i++){
dst[i + dst_]=src[i + src_];
}
}
static void asciiToSentence(String str,int len)
{
String st = "";
int num = 0;
for (int i = 0; i < len; i++) {
// Append the current digit
num = num * 10 + (str.charat(i) - '0');
// If num is within the required range
if (num >= 32 && num <= 122) {
// Convert num to char
char ch = (char)num;
System.out.println(ch);
// Reset num to 0
num = 0;
}
}
}
};
[1]: https://info.isl.ntt.co.jp/crypt/eng/camellia/dl/camellia-java-BSD-1.0.1.tar.gz
解决方法
正如@Topaco所评论的那样，检查加密算法“只是为了好玩”的实现需要进行大量工作，因此在下面可以找到使用Bouncy Castle安全提供程序的完整加密/解密程序的工作示例。 / p>
程序正在使用128位= 16字节长的密钥运行，并使用 CBC模式-可以将其“降级”以使用ECB模式，但不建议将其作为 ECB模式不安全，不应再用于新应用。
它将一个字符串加密为字节数组，然后返回原始字符串：
Camellia 128 CBC encryption with Bouncy Castle
plaintext: The quick brown fox jumps over the lazy dog
plaintext length: 43 data: 54686520717569636b2062726f776e20666f78206a756d7073206f76657220746865206c617a7920646f67
ciphertext length: 48 data: 56629f6df124b289c18da9baa80efd3bc12833c69916d2dea1bc58bad250f5a6f78bb440c086308426e1eb10e9d952bc
decry.text length: 43 data: 54686520717569636b2062726f776e20666f78206a756d7073206f76657220746865206c617a7920646f67
decryptedtext: The quick brown fox jumps over the lazy dog
安全警告：该程序没有异常处理，仅用于教育目的。
代码：
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import java.nio.charset.StandardCharsets;
import java.security.*;
public class MainSo {
public static void main(String[] args) throws NoSuchPaddingException,NoSuchAlgorithmException,NoSuchProviderException,InvalidAlgorithmParameterException,InvalidKeyException,BadPaddingException,IllegalBlockSizeException {
System.out.println("Camellia 128 CBC encryption with Bouncy Castle");
Security.addProvider(new BouncyCastleProvider());
String plaintext = "The quick brown fox jumps over the lazy dog";
byte[] plaintextBytes = plaintext.getBytes(StandardCharsets.UTF_8);
// generate random key + iv
SecureRandom secureRandom = new SecureRandom();
byte[] key = new byte[16]; // 16 bytes = 128 bit key
secureRandom.nextBytes(key);
byte[] iv = new byte[16];
secureRandom.nextBytes(iv);
// setup cipher
Cipher cipher = Cipher.getInstance("Camellia/CBC/PKCS7Padding","BC");
SecretKeySpec keySpec = new SecretKeySpec(key,"AES");
IvParameterSpec ivParameterSpec = new IvParameterSpec(iv);
// encryption
cipher.init(Cipher.ENCRYPT_MODE,keySpec,ivParameterSpec);
byte[] ciphertext = cipher.doFinal(plaintextBytes);
System.out.println("plaintext: " + plaintext);
System.out.println("plaintext length: " + plaintextBytes.length + " data: " + bytesToHex(plaintextBytes));
System.out.println("ciphertext length: " + ciphertext.length + " data: " + bytesToHex(ciphertext));
// decryption
cipher.init(Cipher.DECRYPT_MODE,ivParameterSpec);
byte[] decryptedtext = cipher.doFinal(ciphertext);
System.out.println("decry.text length: " + decryptedtext.length + " data: " + bytesToHex(decryptedtext));
System.out.println("decryptedtext: " + new String(decryptedtext));
}
private static String bytesToHex(byte[] bytes) {
StringBuffer result = new StringBuffer();
for (byte b : bytes) result.append(Integer.toString((b & 0xff) + 0x100,16).substring(1));
return result.toString();
}
}