Java语言实现Blowfish加密算法完整代码分享
前几天网上突然出现流言：某东发生数据泄露12G，最终某东在一篇声明中没有否认，还算是勉强承认了吧，这件事对于一般人有什么影响、应该怎么做已经有一堆人说了，所以就不凑热闹了，咱来点对程序猿来说实际点的，说一个个人认为目前比较安全的加密算法：Blowfish。
上代码之前，先说几点Blowfish加密算法的特点：
1.对称加密，即加密的密钥和解密的密钥是相同的；
2.每次加密之后的结果是不同的（这也是老夫比较欣赏的一点）；
3.可逆的，和老夫之前的文章介绍的md5等摘要算法不一样，他是可逆的；
4.速度快，加密和解密的过程基本上由ADD和XOR指令运算组成；
5.免费，任何人都可以免费使用不需要缴纳版权费；
6.BlowFish每次只能加密和解密8字节数据；
Blowfish算法是一种对称的分组加密算法，算法核心在于子密钥生成，它将变长密钥扩展成总长4168Byte的子密钥数组。算法中使用了大量的子密钥，而子密钥又依赖于用户密钥，实际加/解密过程中使用的是更新后的子密钥数组，子密钥即P数组和S盒。Blowfish算法有一个核心加密函数:BF_En()，该函数的输人是64位明文信息，经过运算，以64位密文信息的形式输出。用Blowfish算法加密信息，需要两个过程:密钥预处理和信息加密。同样，解密亦需要两个过程，密钥预处理和信息解密。
Blowfish算法的源密钥——pbox和sbox是固定的，而我们要加密一个信息，需要自己选择一个key，用这个key对pbox和sbox进行变换，得到下一步信息加密所要用的key_pbox和key_sbox。解密亦是如此，由于Blowfish是对称加密算法，解密方在得到key后根据key生成解密所需的key_box和key_sbox。对同一个信息加密解密，选取的key的不同会导致密文的不同。因此，Blowfish算法的关键在于key的选择以及保密。
由于Blowfish算法采用变长密钥，这在给用户带来极大便利的同时也有隐患。由于算法加/解密核心在于密钥的选择和保密，但在实际应用中经常使用一些弱密钥对信息资源进行加密，导致存在着很大的安全隐患
接下来就是最重要的部分，Blowfish加密算法的实现：
packagecn.bridgeli.encrypt;
publicenumBlowfishManager{
BRIDGELI_CN("bridgeli_cn!@#$abc123_");
privateBlowfishManager(Stringsecret){
this.blowfish=newBlowfish(secret);
}
privateBlowfishblowfish;
publicBlowfishgetBlowfish(){
returnblowfish;
}
/**
*解密
*@paramsCipherText
*@return
*/
publicStringdecryptString(StringsCipherText){
returnthis.getBlowfish().decryptString(sCipherText);
}
/**
*加密
*@paramsPlainText
*@return
*/
publicStringencryptString(StringsPlainText){
returnthis.getBlowfish().encryptString(sPlainText);
}
publicstaticvoidmain(String[]args){
StringencryptString=BlowfishManager.BRIDGELI_CN.encryptString(10+"");
System.out.println(encryptString);
StringdecryptString=BlowfishManager.BRIDGELI_CN.decryptString(encryptString);
System.out.println(decryptString);
}
}
这是对外的接口，使用起来非常简单，对用户很友好，下面是算法的具体实现：
packagecn.bridgeli.encrypt;
importjava.security.MessageDigest;
importjava.util.Random;
importorg.slf4j.Logger;
importorg.slf4j.LoggerFactory;
publicclassBlowfish{
privatestaticfinalLoggerLOG=LoggerFactory.getLogger(Blowfish.class);
privatestaticclassBlowfishCBCextendsBlowfishECB{
publicvoidsetCBCIV(longlNewCBCIV){
m_lCBCIV=lNewCBCIV;
}
publicvoidsetCBCIV(bytenewCBCIV[]){
m_lCBCIV=Blowfish.byteArrayToLong(newCBCIV,0);
}
@Override
publicvoidcleanUp(){
m_lCBCIV=0L;
super.cleanUp();
}
privatelongencryptBlockCBC(longlPlainblock){
lPlainblock^=m_lCBCIV;
lPlainblock=super.encryptBlock(lPlainblock);
returnm_lCBCIV=lPlainblock;
}
privatelongdecryptBlockCBC(longlCipherblock){
longlTemp=lCipherblock;
lCipherblock=super.decryptBlock(lCipherblock);
lCipherblock^=m_lCBCIV;
m_lCBCIV=lTemp;
returnlCipherblock;
}
publicvoidencrypt(bytebuffer[]){
intnLen=buffer.length;
for(intnI=0;nI>>24]+sbox2[nHi>>>16&0xff]^sbox3[nHi>>>8&0xff])
+sbox4[nHi&0xff]^pbox[1];
nHi^=(sbox1[nLo>>>24]+sbox2[nLo>>>16&0xff]^sbox3[nLo>>>8&0xff])
+sbox4[nLo&0xff]^pbox[2];
nLo^=(sbox1[nHi>>>24]+sbox2[nHi>>>16&0xff]^sbox3[nHi>>>8&0xff])
+sbox4[nHi&0xff]^pbox[3];
nHi^=(sbox1[nLo>>>24]+sbox2[nLo>>>16&0xff]^sbox3[nLo>>>8&0xff])
+sbox4[nLo&0xff]^pbox[4];
nLo^=(sbox1[nHi>>>24]+sbox2[nHi>>>16&0xff]^sbox3[nHi>>>8&0xff])
+sbox4[nHi&0xff]^pbox[5];
nHi^=(sbox1[nLo>>>24]+sbox2[nLo>>>16&0xff]^sbox3[nLo>>>8&0xff])
+sbox4[nLo&0xff]^pbox[6];
nLo^=(sbox1[nHi>>>24]+sbox2[nHi>>>16&0xff]^sbox3[nHi>>>8&0xff])
+sbox4[nHi&0xff]^pbox[7];
nHi^=(sbox1[nLo>>>24]+sbox2[nLo>>>16&0xff]^sbox3[nLo>>>8&0xff])
+sbox4[nLo&0xff]^pbox[8];
nLo^=(sbox1[nHi>>>24]+sbox2[nHi>>>16&0xff]^sbox3[nHi>>>8&0xff])
+sbox4[nHi&0xff]^pbox[9];
nHi^=(sbox1[nLo>>>24]+sbox2[nLo>>>16&0xff]^sbox3[nLo>>>8&0xff])
+sbox4[nLo&0xff]^pbox[10];
nLo^=(sbox1[nHi>>>24]+sbox2[nHi>>>16&0xff]^sbox3[nHi>>>8&0xff])
+sbox4[nHi&0xff]^pbox[11];
nHi^=(sbox1[nLo>>>24]+sbox2[nLo>>>16&0xff]^sbox3[nLo>>>8&0xff])
+sbox4[nLo&0xff]^pbox[12];
nLo^=(sbox1[nHi>>>24]+sbox2[nHi>>>16&0xff]^sbox3[nHi>>>8&0xff])
+sbox4[nHi&0xff]^pbox[13];
nHi^=(sbox1[nLo>>>24]+sbox2[nLo>>>16&0xff]^sbox3[nLo>>>8&0xff])
+sbox4[nLo&0xff]^pbox[14];
nLo^=(sbox1[nHi>>>24]+sbox2[nHi>>>16&0xff]^sbox3[nHi>>>8&0xff])
+sbox4[nHi&0xff]^pbox[15];
nHi^=(sbox1[nLo>>>24]+sbox2[nLo>>>16&0xff]^sbox3[nLo>>>8&0xff])
+sbox4[nLo&0xff]^pbox[16];
returnBlowfish.makeLong(nHi,nLo^pbox[17]);
}
protectedlongdecryptBlock(longlCipherBlock){
intnHi=Blowfish.longHi32(lCipherBlock);
intnLo=Blowfish.longLo32(lCipherBlock);
nHi^=m_pbox[17];
nLo^=(m_sbox1[nHi>>>24]+m_sbox2[nHi>>>16&0xff]^m_sbox3[nHi>>>8&0xff])
+m_sbox4[nHi&0xff]^m_pbox[16];
nHi^=(m_sbox1[nLo>>>24]+m_sbox2[nLo>>>16&0xff]^m_sbox3[nLo>>>8&0xff])
+m_sbox4[nLo&0xff]^m_pbox[15];
nLo^=(m_sbox1[nHi>>>24]+m_sbox2[nHi>>>16&0xff]^m_sbox3[nHi>>>8&0xff])
+m_sbox4[nHi&0xff]^m_pbox[14];
nHi^=(m_sbox1[nLo>>>24]+m_sbox2[nLo>>>16&0xff]^m_sbox3[nLo>>>8&0xff])
+m_sbox4[nLo&0xff]^m_pbox[13];
nLo^=(m_sbox1[nHi>>>24]+m_sbox2[nHi>>>16&0xff]^m_sbox3[nHi>>>8&0xff])
+m_sbox4[nHi&0xff]^m_pbox[12];
nHi^=(m_sbox1[nLo>>>24]+m_sbox2[nLo>>>16&0xff]^m_sbox3[nLo>>>8&0xff])
+m_sbox4[nLo&0xff]^m_pbox[11];
nLo^=(m_sbox1[nHi>>>24]+m_sbox2[nHi>>>16&0xff]^m_sbox3[nHi>>>8&0xff])
+m_sbox4[nHi&0xff]^m_pbox[10];
nHi^=(m_sbox1[nLo>>>24]+m_sbox2[nLo>>>16&0xff]^m_sbox3[nLo>>>8&0xff])
+m_sbox4[nLo&0xff]^m_pbox[9];
nLo^=(m_sbox1[nHi>>>24]+m_sbox2[nHi>>>16&0xff]^m_sbox3[nHi>>>8&0xff])
+m_sbox4[nHi&0xff]^m_pbox[8];
nHi^=(m_sbox1[nLo>>>24]+m_sbox2[nLo>>>16&0xff]^m_sbox3[nLo>>>8&0xff])
+m_sbox4[nLo&0xff]^m_pbox[7];
nLo^=(m_sbox1[nHi>>>24]+m_sbox2[nHi>>>16&0xff]^m_sbox3[nHi>>>8&0xff])
+m_sbox4[nHi&0xff]^m_pbox[6];
nHi^=(m_sbox1[nLo>>>24]+m_sbox2[nLo>>>16&0xff]^m_sbox3[nLo>>>8&0xff])
+m_sbox4[nLo&0xff]^m_pbox[5];
nLo^=(m_sbox1[nHi>>>24]+m_sbox2[nHi>>>16&0xff]^m_sbox3[nHi>>>8&0xff])
+m_sbox4[nHi&0xff]^m_pbox[4];
nHi^=(m_sbox1[nLo>>>24]+m_sbox2[nLo>>>16&0xff]^m_sbox3[nLo>>>8&0xff])
+m_sbox4[nLo&0xff]^m_pbox[3];
nLo^=(m_sbox1[nHi>>>24]+m_sbox2[nHi>>>16&0xff]^m_sbox3[nHi>>>8&0xff])
+m_sbox4[nHi&0xff]^m_pbox[2];
nHi^=(m_sbox1[nLo>>>24]+m_sbox2[nLo>>>16&0xff]^m_sbox3[nLo>>>8&0xff])
+m_sbox4[nLo&0xff]^m_pbox[1];
returnBlowfish.makeLong(nHi,nLo^m_pbox[0]);
}
intm_pbox[];
intm_sbox1[];
intm_sbox2[];
intm_sbox3[];
intm_sbox4[];
staticfinalintpbox_init[]={0x243f6a88,0x85a308d3,0x13198a2e,0x3707344,0xa4093822,
0x299f31d0,0x82efa98,0xec4e6c89,0x452821e6,0x38d01377,
0xbe5466cf,0x34e90c6c,0xc0ac29b7,0xc97c50dd,0x3f84d5b5,
0xb5470917,0x9216d5d9,0x8979fb1b};
staticfinalintsbox_init_1[]={0xd1310ba6,0x98dfb5ac,0x2ffd72db,0xd01adfb7,
0xb8e1afed,0x6a267e96,0xba7c9045,0xf12c7f99,
0x24a19947,0xb3916cf7,0x801f2e2,0x858efc16,
0x636920d8,0x71574e69,0xa458fea3,0xf4933d7e,
0xd95748f,0x728eb658,0x718bcd58,0x82154aee,
0x7b54a41d,0xc25a59b5,0x9c30d539,0x2af26013,
0xc5d1b023,0x286085f0,0xca417918,0xb8db38ef,
0x8e79dcb0,0x603a180e,0x6c9e0e8b,0xb01e8a3e,
0xd71577c1,0xbd314b27,0x78af2fda,0x55605c60,
0xe65525f3,0xaa55ab94,0x57489862,0x63e81440,
0x55ca396a,0x2aab10b6,0xb4cc5c34,0x1141e8ce,
0xa15486af,0x7c72e993,0xb3ee1411,0x636fbc2a,
0x2ba9c55d,0x741831f6,0xce5c3e16,0x9b87931e,
0xafd6ba33,0x6c24cf5c,0x7a325381,0x28958677,
0x3b8f4898,0x6b4bb9af,0xc4bfe81b,0x66282193,
0x61d809cc,0xfb21a991,0x487cac60,0x5dec8032,
0xef845d5d,0xe98575b1,0xdc262302,0xeb651b88,
0x23893e81,0xd396acc5,0xf6d6ff3,0x83f44239,
0x2e0b4482,0xa4842004,0x69c8f04a,0x9e1f9b5e,
0x21c66842,0xf6e96c9a,0x670c9c61,0xabd388f0,
0x6a51a0d2,0xd8542f68,0x960fa728,0xab5133a3,
0x6eef0b6c,0x137a3be4,0xba3bf050,0x7efb2a98,
0xa1f1651d,0x39af0176,0x66ca593e,0x82430e88,
0x8cee8619,0x456f9fb4,0x7d84a5c3,0x3b8b5ebe,
0xe06f75d8,0x85c12073,0x401a449f,0x56c16aa6,
0x4ed3aa62,0x363f7706,0x1bfedf72,0x429b023d,
0x37d0d724,0xd00a1248,0xdb0fead3,0x49f1c09b,
0x75372c9,0x80991b7b,0x25d479d8,0xf6e8def7,
0xe3fe501a,0xb6794c3b,0x976ce0bd,0x4c006ba,
0xc1a94fb6,0x409f60c4,0x5e5c9ec2,0x196a2463,
0x68fb6faf,0x3e6c53b5,0x1339b2eb,0x3b52ec6f,
0x6dfc511f,0x9b30952c,0xcc814544,0xaf5ebd09,
0xbee3d004,0xde334afd,0x660f2807,0x192e4bb3,
0xc0cba857,0x45c8740f,0xd20b5f39,0xb9d3fbdb,
0x5579c0bd,0x1a60320a,0xd6a100c6,0x402c7279,
0x679f25fe,0xfb1fa3cc,0x8ea5e9f8,0xdb3222f8,
0x3c7516df,0xfd616b15,0x2f501ec8,0xad0552ab,
0x323db5fa,0xfd238760,0x53317b48,0x3e00df82,
0x9e5c57bb,0xca6f8ca0,0x1a87562e,0xdf1769db,
0xd542a8f6,0x287effc3,0xac6732c6,0x8c4f5573,
0x695b27b0,0xbbca58c8,0xe1ffa35d,0xb8f011a0,
0x10fa3d98,0xfd2183b8,0x4afcb56c,0x2dd1d35b,
0x9a53e479,0xb6f84565,0xd28e49bc,0x4bfb9790,
0xe1ddf2da,0xa4cb7e33,0x62fb1341,0xcee4c6e8,
0xef20cada,0x36774c01,0xd07e9efe,0x2bf11fb4,
0x95dbda4d,0xae909198,0xeaad8e71,0x6b93d5a0,
0xd08ed1d0,0xafc725e0,0x8e3c5b2f,0x8e7594b7,
0x8ff6e2fb,0xf2122b64,0x8888b812,0x900df01c,
0x4fad5ea0,0x688fc31c,0xd1cff191,0xb3a8c1ad,
0x2f2f2218,0xbe0e1777,0xea752dfe,0x8b021fa1,
0xe5a0cc0f,0xb56f74e8,0x18acf3d6,0xce89e299,
0xb4a84fe0,0xfd13e0b7,0x7cc43b81,0xd2ada8d9,
0x165fa266,0x80957705,0x93cc7314,0x211a1477,
0xe6ad2065,0x77b5fa86,0xc75442f5,0xfb9d35cf,
0xebcdaf0c,0x7b3e89a0,0xd6411bd3,0xae1e7e49,0x250e2d,
0x2071b35e,0x226800bb,0x57b8e0af,0x2464369b,
0xf009b91e,0x5563911d,0x59dfa6aa,0x78c14389,
0xd95a537f,0x207d5ba2,0x2e5b9c5,0x83260376,
0x6295cfa9,0x11c81968,0x4e734a41,0xb3472dca,
0x7b14a94a,0x1b510052,0x9a532915,0xd60f573f,
0xbc9bc6e4,0x2b60a476,0x81e67400,0x8ba6fb5,
0x571be91f,0xf296ec6b,0x2a0dd915,0xb6636521,
0xe7b9f9b6,0xff34052e,0xc5855664,0x53b02d5d,
0xa99f8fa1,0x8ba4799,0x6e85076a};
staticfinalintsbox_init_2[]={0x4b7a70e9,0xb5b32944,0xdb75092e,0xc4192623,
0xad6ea6b0,0x49a7df7d,0x9cee60b8,0x8fedb266,
0xecaa8c71,0x699a17ff,0x5664526c,0xc2b19ee1,
0x193602a5,0x75094c29,0xa0591340,0xe4183a3e,
0x3f54989a,0x5b429d65,0x6b8fe4d6,0x99f73fd6,
0xa1d29c07,0xefe830f5,0x4d2d38e6,0xf0255dc1,
0x4cdd2086,0x8470eb26,0x6382e9c6,0x21ecc5e,0x9686b3f,
0x3ebaefc9,0x3c971814,0x6b6a70a1,0x687f3584,
0x52a0e286,0xb79c5305,0xaa500737,0x3e07841c,
0x7fdeae5c,0x8e7d44ec,0x5716f2b8,0xb03ada37,
0xf0500c0d,0xf01c1f04,0x200b3ff,0xae0cf51a,
0x3cb574b2,0x25837a58,0xdc0921bd,0xd19113f9,
0x7ca92ff6,0x94324773,0x22f54701,0x3ae5e581,
0x37c2dadc,0xc8b57634,0x9af3dda7,0xa9446146,
0xfd0030e,0xecc8c73e,0xa4751e41,0xe238cd99,
0x3bea0e2f,0x3280bba1,0x183eb331,0x4e548b38,
0x4f6db908,0x6f420d03,0xf60a04bf,0x2cb81290,
0x24977c79,0x5679b072,0xbcaf89af,0xde9a771f,
0xd9930810,0xb38bae12,0xdccf3f2e,0x5512721f,
0x2e6b7124,0x501adde6,0x9f84cd87,0x7a584718,
0x7408da17,0xbc9f9abc,0xe94b7d8c,0xec7aec3a,
0xdb851dfa,0x63094366,0xc464c3d2,0xef1c1847,
0x3215d908,0xdd433b37,0x24c2ba16,0x12a14d43,
0x2a65c451,0x50940002,0x133ae4dd,0x71dff89e,
0x10314e55,0x81ac77d6,0x5f11199b,0x43556f1,
0xd7a3c76b,0x3c11183b,0x5924a509,0xf28fe6ed,
0x97f1fbfa,0x9ebabf2c,0x1e153c6e,0x86e34570,
0xeae96fb1,0x860e5e0a,0x5a3e2ab3,0x771fe71c,
0x4e3d06fa,0x2965dcb9,0x99e71d0f,0x803e89d6,
0x5266c825,0x2e4cc978,0x9c10b36a,0xc6150eba,
0x94e2ea78,0xa5fc3c53,0x1e0a2df4,0xf2f74ea7,
0x361d2b3d,0x1939260f,0x19c27960,0x5223a708,
0xf71312b6,0xebadfe6e,0xeac31f66,0xe3bc4595,
0xa67bc883,0xb17f37d1,0x18cff28,0xc332ddef,
0xbe6c5aa5,0x65582185,0x68ab9802,0xeecea50f,
0xdb2f953b,0x2aef7dad,0x5b6e2f84,0x1521b628,
0x29076170,0xecdd4775,0x619f1510,0x13cca830,
0xeb61bd96,0x334fe1e,0xaa0363cf,0xb5735c90,
0x4c70a239,0xd59e9e0b,0xcbaade14,0xeecc86bc,
0x60622ca7,0x9cab5cab,0xb2f3846e,0x648b1eaf,
0x19bdf0ca,0xa02369b9,0x655abb50,0x40685a32,
0x3c2ab4b3,0x319ee9d5,0xc021b8f7,0x9b540b19,
0x875fa099,0x95f7997e,0x623d7da8,0xf837889a,
0x97e32d77,0x11ed935f,0x16681281,0xe358829,
0xc7e61fd6,0x96dedfa1,0x7858ba99,0x57f584a5,
0x1b227263,0x9b83c3ff,0x1ac24696,0xcdb30aeb,
0x532e3054,0x8fd948e4,0x6dbc3128,0x58ebf2ef,
0x34c6ffea,0xfe28ed61,0xee7c3c73,0x5d4a14d9,
0xe864b7e3,0x42105d14,0x203e13e0,0x45eee2b6,
0xa3aaabea,0xdb6c4f15,0xfacb4fd0,0xc742f442,
0xef6abbb5,0x654f3b1d,0x41cd2105,0xd81e799e,
0x86854dc7,0xe44b476a,0x3d816250,0xcf62a1f2,
0x5b8d2646,0xfc8883a0,0xc1c7b6a3,0x7f1524c3,
0x69cb7492,0x47848a0b,0x5692b285,0x95bbf00,
0xad19489d,0x1462b174,0x23820e00,0x58428d2a,
0xc55f5ea,0x1dadf43e,0x233f7061,0x3372f092,
0x8d937e41,0xd65fecf1,0x6c223bdb,0x7cde3759,
0xcbee7460,0x4085f2a7,0xce77326e,0xa6078084,
0x19f8509e,0xe8efd855,0x61d99735,0xa969a7aa,
0xc50c06c2,0x5a04abfc,0x800bcadc,0x9e447a2e,
0xc3453484,0xfdd56705,0xe1e9ec9,0xdb73dbd3,
0x105588cd,0x675fda79,0xe3674340,0xc5c43465,
0x713e38d8,0x3d28f89e,0xf16dff20,0x153e21e7,
0x8fb03d4a,0xe6e39f2b,0xdb83adf7};
staticfinalintsbox_init_3[]={0xe93d5a68,0x948140f7,0xf64c261c,0x94692934,
0x411520f7,0x7602d4f7,0xbcf46b2e,0xd4a20068,
0xd4082471,0x3320f46a,0x43b7d4b7,0x500061af,
0x1e39f62e,0x97244546,0x14214f74,0xbf8b8840,
0x4d95fc1d,0x96b591af,0x70f4ddd3,0x66a02f45,
0xbfbc09ec,0x3bd9785,0x7fac6dd0,0x31cb8504,
0x96eb27b3,0x55fd3941,0xda2547e6,0xabca0a9a,
0x28507825,0x530429f4,0xa2c86da,0xe9b66dfb,
0x68dc1462,0xd7486900,0x680ec0a4,0x27a18dee,
0x4f3ffea2,0xe887ad8c,0xb58ce006,0x7af4d6b6,
0xaace1e7c,0xd3375fec,0xce78a399,0x406b2a42,
0x20fe9e35,0xd9f385b9,0xee39d7ab,0x3b124e8b,
0x1dc9faf7,0x4b6d1856,0x26a36631,0xeae397b2,
0x3a6efa74,0xdd5b4332,0x6841e7f7,0xca7820fb,
0xfb0af54e,0xd8feb397,0x454056ac,0xba489527,
0x55533a3a,0x20838d87,0xfe6ba9b7,0xd096954b,
0x55a867bc,0xa1159a58,0xcca92963,0x99e1db33,
0xa62a4a56,0x3f3125f9,0x5ef47e1c,0x9029317c,
0xfdf8e802,0x4272f70,0x80bb155c,0x5282ce3,0x95c11548,
0xe4c66d22,0x48c1133f,0xc70f86dc,0x7f9c9ee,
0x41041f0f,0x404779a4,0x5d886e17,0x325f51eb,
0xd59bc0d1,0xf2bcc18f,0x41113564,0x257b7834,
0x602a9c60,0xdff8e8a3,0x1f636c1b,0xe12b4c2,0x2e1329e,
0xaf664fd1,0xcad18115,0x6b2395e0,0x333e92e1,
0x3b240b62,0xeebeb922,0x85b2a20e,0xe6ba0d99,
0xde720c8c,0x2da2f728,0xd0127845,0x95b794fd,
0x647d0862,0xe7ccf5f0,0x5449a36f,0x877d48fa,
0xc39dfd27,0xf33e8d1e,0xa476341,0x992eff74,
0x3a6f6eab,0xf4f8fd37,0xa812dc60,0xa1ebddf8,
0x991be14c,0xdb6e6b0d,0xc67b5510,0x6d672c37,
0x2765d43b,0xdcd0e804,0xf1290dc7,0xcc00ffa3,
0xb5390f92,0x690fed0b,0x667b9ffb,0xcedb7d9c,
0xa091cf0b,0xd9155ea3,0xbb132f88,0x515bad24,
0x7b9479bf,0x763bd6eb,0x37392eb3,0xcc115979,
0x8026e297,0xf42e312d,0x6842ada7,0xc66a2b3b,
0x12754ccc,0x782ef11c,0x6a124237,0xb79251e7,
0x6a1bbe6,0x4bfb6350,0x1a6b1018,0x11caedfa,
0x3d25bdd8,0xe2e1c3c9,0x44421659,0xa121386,
0xd90cec6e,0xd5abea2a,0x64af674e,0xda86a85f,
0xbebfe988,0x64e4c3fe,0x9dbc8057,0xf0f7c086,
0x60787bf8,0x6003604d,0xd1fd8346,0xf6381fb0,
0x7745ae04,0xd736fccc,0x83426b33,0xf01eab71,
0xb0804187,0x3c005e5f,0x77a057be,0xbde8ae24,
0x55464299,0xbf582e61,0x4e58f48f,0xf2ddfda2,
0xf474ef38,0x8789bdc2,0x5366f9c3,0xc8b38e74,
0xb475f255,0x46fcd9b9,0x7aeb2661,0x8b1ddf84,
0x846a0e79,0x915f95e2,0x466e598e,0x20b45770,
0x8cd55591,0xc902de4c,0xb90bace1,0xbb8205d0,
0x11a86248,0x7574a99e,0xb77f19b6,0xe0a9dc09,
0x662d09a1,0xc4324633,0xe85a1f02,0x9f0be8c,
0x4a99a025,0x1d6efe10,0x1ab93d1d,0xba5a4df,
0xa186f20f,0x2868f169,0xdcb7da83,0x573906fe,
0xa1e2ce9b,0x4fcd7f52,0x50115e01,0xa70683fa,
0xa002b5c4,0xde6d027,0x9af88c27,0x773f8641,
0xc3604c06,0x61a806b5,0xf0177a28,0xc0f586e0,0x6058aa,
0x30dc7d62,0x11e69ed7,0x2338ea63,0x53c2dd94,
0xc2c21634,0xbbcbee56,0x90bcb6de,0xebfc7da1,
0xce591d76,0x6f05e409,0x4b7c0188,0x39720a3d,
0x7c927c24,0x86e3725f,0x724d9db9,0x1ac15bb4,
0xd39eb8fc,0xed545578,0x8fca5b5,0xd83d7cd3,
0x4dad0fc4,0x1e50ef5e,0xb161e6f8,0xa28514d9,
0x6c51133c,0x6fd5c7e7,0x56e14ec4,0x362abfce,
0xddc6c837,0xd79a3234,0x92638212,0x670efa8e,
0x406000e0};
staticfinalintsbox_init_4[]={0x3a39ce37,0xd3faf5cf,0xabc27737,0x5ac52d1b,
0x5cb0679e,0x4fa33742,0xd3822740,0x99bc9bbe,
0xd5118e9d,0xbf0f7315,0xd62d1c7e,0xc700c47b,
0xb78c1b6b,0x21a19045,0xb26eb1be,0x6a366eb4,
0x5748ab2f,0xbc946e79,0xc6a376d2,0x6549c2c8,
0x530ff8ee,0x468dde7d,0xd5730a1d,0x4cd04dc6,
0x2939bbdb,0xa9ba4650,0xac9526e8,0xbe5ee304,
0xa1fad5f0,0x6a2d519a,0x63ef8ce2,0x9a86ee22,
0xc089c2b8,0x43242ef6,0xa51e03aa,0x9cf2d0a4,
0x83c061ba,0x9be96a4d,0x8fe51550,0xba645bd6,
0x2826a2f9,0xa73a3ae1,0x4ba99586,0xef5562e9,
0xc72fefd3,0xf752f7da,0x3f046f69,0x77fa0a59,
0x80e4a915,0x87b08601,0x9b09e6ad,0x3b3ee593,
0xe990fd5a,0x9e34d797,0x2cf0b7d9,0x22b8b51,
0x96d5ac3a,0x17da67d,0xd1cf3ed6,0x7c7d2d28,
0x1f9f25cf,0xadf2b89b,0x5ad6b472,0x5a88f54c,
0xe029ac71,0xe019a5e6,0x47b0acfd,0xed93fa9b,
0xe8d3c48d,0x283b57cc,0xf8d56629,0x79132e28,
0x785f0191,0xed756055,0xf7960e44,0xe3d35e8c,
0x15056dd4,0x88f46dba,0x3a16125,0x564f0bd,0xc3eb9e15,
0x3c9057a2,0x97271aec,0xa93a072a,0x1b3f6d9b,
0x1e6321f5,0xf59c66fb,0x26dcf319,0x7533d928,
0xb155fdf5,0x3563482,0x8aba3cbb,0x28517711,
0xc20ad9f8,0xabcc5167,0xccad925f,0x4de81751,
0x3830dc8e,0x379d5862,0x9320f991,0xea7a90c2,
0xfb3e7bce,0x5121ce64,0x774fbe32,0xa8b6e37e,
0xc3293d46,0x48de5369,0x6413e680,0xa2ae0810,
0xdd6db224,0x69852dfd,0x9072166,0xb39a460a,
0x6445c0dd,0x586cdecf,0x1c20c8ae,0x5bbef7dd,
0x1b588d40,0xccd2017f,0x6bb4e3bb,0xdda26a7e,
0x3a59ff45,0x3e350a44,0xbcb4cdd5,0x72eacea8,
0xfa6484bb,0x8d6612ae,0xbf3c6f47,0xd29be463,
0x542f5d9e,0xaec2771b,0xf64e6370,0x740e0d8d,
0xe75b1357,0xf8721671,0xaf537d5d,0x4040cb08,
0x4eb4e2cc,0x34d2466a,0x115af84,0xe1b00428,
0x95983a1d,0x6b89fb4,0xce6ea048,0x6f3f3b82,
0x3520ab82,0x11a1d4b,0x277227f8,0x611560b1,
0xe7933fdc,0xbb3a792b,0x344525bd,0xa08839e1,
0x51ce794b,0x2f32c9b7,0xa01fbac9,0xe01cc87e,
0xbcc7d1f6,0xcf0111c3,0xa1e8aac7,0x1a908749,
0xd44fbd9a,0xd0dadecb,0xd50ada38,0x339c32a,
0xc6913667,0x8df9317c,0xe0b12b4f,0xf79e59b7,
0x43f5bb3a,0xf2d519ff,0x27d9459c,0xbf97222c,
0x15e6fc2a,0xf91fc71,0x9b941525,0xfae59361,
0xceb69ceb,0xc2a86459,0x12baa8d1,0xb6c1075e,
0xe3056a0c,0x10d25065,0xcb03a442,0xe0ec6e0e,
0x1698db3b,0x4c98a0be,0x3278e964,0x9f1f9532,
0xe0d392df,0xd3a0342b,0x8971f21e,0x1b0a7441,
0x4ba3348c,0xc5be7120,0xc37632d8,0xdf359f8d,
0x9b992f2e,0xe60b6f47,0xfe3f11d,0xe54cda54,
0x1edad891,0xce6279cf,0xcd3e7e6f,0x1618b166,
0xfd2c1d05,0x848fd2c5,0xf6fb2299,0xf523f357,
0xa6327623,0x93a83531,0x56cccd02,0xacf08162,
0x5a75ebb5,0x6e163697,0x88d273cc,0xde966292,
0x81b949d0,0x4c50901b,0x71c65614,0xe6c6c7bd,
0x327a140a,0x45e1d006,0xc3f27b9a,0xc9aa53fd,
0x62a80f00,0xbb25bfe2,0x35bdd2f6,0x71126905,
0xb2040222,0xb6cbcf7c,0xcd769c2b,0x53113ec0,
0x1640e3d3,0x38abbd60,0x2547adf0,0xba38209c,
0xf746ce76,0x77afa1c5,0x20756060,0x85cbfe4e,
0x8ae88dd8,0x7aaaf9b0,0x4cf9aa7e,0x1948c25c,
0x2fb8a8c,0x1c36ae4,0xd6ebe1f9,0x90d4f869,0xa65cdea0,
0x3f09252d,0xc208e69f,0xb74e6132,0xce77e25b,
0x578fdfe3,0x3ac372e6};
publicBlowfishECB(bytebfkey[]){
m_pbox=newint[18];
for(intnI=0;nI<18;nI++){
m_pbox[nI]=pbox_init[nI];
}
m_sbox1=newint[256];
m_sbox2=newint[256];
m_sbox3=newint[256];
m_sbox4=newint[256];
for(intnI=0;nI<256;nI++){
m_sbox1[nI]=sbox_init_1[nI];
m_sbox2[nI]=sbox_init_2[nI];
m_sbox3[nI]=sbox_init_3[nI];
m_sbox4[nI]=sbox_init_4[nI];
}
intnLen=bfkey.length;
if(nLen==0){
return;
}
intnKeyPos=0;
intnBuild=0;
for(intnI=0;nI<18;nI++){
for(intnJ=0;nJ<4;nJ++){
nBuild=nBuild<<8|bfkey[nKeyPos]&0xff;
if(++nKeyPos==nLen){
nKeyPos=0;
}
}
m_pbox[nI]^=nBuild;
}
longlZero=0L;
for(intnI=0;nI<18;nI+=2){
lZero=encryptBlock(lZero);
m_pbox[nI]=(int)(lZero>>>32);
m_pbox[nI+1]=(int)(lZero&0xffffffffL);
}
for(intnI=0;nI<256;nI+=2){
lZero=encryptBlock(lZero);
m_sbox1[nI]=(int)(lZero>>>32);
m_sbox1[nI+1]=(int)(lZero&0xffffffffL);
}
for(intnI=0;nI<256;nI+=2){
lZero=encryptBlock(lZero);
m_sbox2[nI]=(int)(lZero>>>32);
m_sbox2[nI+1]=(int)(lZero&0xffffffffL);
}
for(intnI=0;nI<256;nI+=2){
lZero=encryptBlock(lZero);
m_sbox3[nI]=(int)(lZero>>>32);
m_sbox3[nI+1]=(int)(lZero&0xffffffffL);
}
for(intnI=0;nI<256;nI+=2){
lZero=encryptBlock(lZero);
m_sbox4[nI]=(int)(lZero>>>32);
m_sbox4[nI+1]=(int)(lZero&0xffffffffL);
}
}
}
publicBlowfish(Stringpassword){
MessageDigestdigest=null;
try{
digest=MessageDigest.getInstance("SHA1");
digest.update(password.getBytes());
}catch(Exceptione){
LOG.error(e.getMessage(),e);
}
m_bfish=newBlowfishCBC(digest.digest(),0L);
digest.reset();
}
publicStringencryptString(StringsPlainText){
longlCBCIV;
synchronized(m_rndGen){
lCBCIV=m_rndGen.nextLong();
}
returnencStr(sPlainText,lCBCIV);
}
privateStringencStr(StringsPlainText,longlNewCBCIV){
intnStrLen=sPlainText.length();
bytebuf[]=newbyte[(nStrLen<<1&-8)+8];
intnPos=0;
for(intnI=0;nI>8&0xff);
buf[nPos++]=(byte)(cActChar&0xff);
}
bytebPadVal=(byte)(buf.length-(nStrLen<<1));
while(nPos>1&-8;
if(nLen<8){
returnnull;
}
bytecbciv[]=newbyte[8];
intnNumOfBytes=binHexToBytes(sCipherText,cbciv,0,0,8);
if(nNumOfBytes<8){
returnnull;
}
m_bfish.setCBCIV(cbciv);
if((nLen-=8)==0){
return"";
}
bytebuf[]=newbyte[nLen];
nNumOfBytes=binHexToBytes(sCipherText,buf,16,0,nLen);
if(nNumOfBytes8||nPadByte<0){
nPadByte=0;
}
nNumOfBytes-=nPadByte;
if(nNumOfBytes<0){
return"";
}else{
returnbyteArrayToUNCString(buf,0,nNumOfBytes);
}
}
publicvoiddestroy(){
m_bfish.cleanUp();
}
privatestaticlongbyteArrayToLong(bytebuffer[],intnStartIndex){
return(long)buffer[nStartIndex]<<56|(buffer[nStartIndex+1]&255L)<<48
|(buffer[nStartIndex+2]&255L)<<40
|(buffer[nStartIndex+3]&255L)<<32
|(buffer[nStartIndex+4]&255L)<<24
|(buffer[nStartIndex+5]&255L)<<16
|(buffer[nStartIndex+6]&255L)<<8|buffer[nStartIndex+7]
&255L;
}
privatestaticvoidlongToByteArray(longlValue,bytebuffer[],intnStartIndex){
buffer[nStartIndex]=(byte)(int)(lValue>>>56);
buffer[nStartIndex+1]=(byte)(int)(lValue>>>48&255L);
buffer[nStartIndex+2]=(byte)(int)(lValue>>>40&255L);
buffer[nStartIndex+3]=(byte)(int)(lValue>>>32&255L);
buffer[nStartIndex+4]=(byte)(int)(lValue>>>24&255L);
buffer[nStartIndex+5]=(byte)(int)(lValue>>>16&255L);
buffer[nStartIndex+6]=(byte)(int)(lValue>>>8&255L);
buffer[nStartIndex+7]=(byte)(int)lValue;
}
privatestaticlongmakeLong(intnLo,intnHi){
return(long)nHi<<32|nLo&0xffffffffL;
}
privatestaticintlongLo32(longlVal){
return(int)lVal;
}
privatestaticintlongHi32(longlVal){
return(int)(lVal>>>32);
}
privatestaticStringbytesToBinHex(bytedata[],intnStartPos,intnNumOfBytes){
StringBuffersbuf=newStringBuffer();
sbuf.setLength(nNumOfBytes<<1);
intnPos=0;
for(intnI=0;nI>4&0xf]);
sbuf.setCharAt(nPos++,HEXTAB[data[nI+nStartPos]&0xf]);
}
returnsbuf.toString();
}
privatestaticintbinHexToBytes(StringsBinHex,bytedata[],intnSrcPos,intnDstPos,
intnNumOfBytes){
intnStrLen=sBinHex.length();
intnAvailBytes=nStrLen-nSrcPos>>1;
if(nAvailBytesnOutputCapacity){
nNumOfBytes=nOutputCapacity;
}
intnResult=0;
for(intnI=0;nI='a'&&cActChar<='f'){
bActByte|=(byte)(cActChar-97)+10;
continue;
}
if(cActChar>='0'&&cActChar<='9'){
bActByte|=(byte)(cActChar-48);
}else{
blConvertOK=false;
}
}
if(blConvertOK){
data[nDstPos++]=bActByte;
nResult++;
}
}
returnnResult;
}
privatestaticStringbyteArrayToUNCString(bytedata[],intnStartPos,intnNumOfBytes){
nNumOfBytes&=-2;
intnAvailCapacity=data.length-nStartPos;
if(nAvailCapacity>1);
intnSBufPos=0;
for(;nNumOfBytes>0;nNumOfBytes-=2){
sbuf.setCharAt(nSBufPos++,(char)(data[nStartPos]<<8|data[nStartPos+1]&0xff));
nStartPos+=2;
}
returnsbuf.toString();
}
privateBlowfishCBCm_bfish;
privatestaticRandomm_rndGen=newRandom();
staticfinalcharHEXTAB[]={'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'};
}
总结
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