小程式，前端，js , AES加密解密，java後端加密，解密
阿新 • • 發佈：2019-01-14
最近涉及到小程式前端加密解密。網上了解了一下，程式碼要麼是js，要麼是java後端。沒有一套前後端加密解密的演算法。自己整理了一下。希望對大家有用
解密和加密的方式很多，我用到的AES
小程式前端程式碼
var fun_aes = require('../../utils/aes.js') Page({ data: {}, onLoad: function() { var str_aes_encode = this.Encrypt('{pwd:{app_id:1234567890,user_name:user_info,nick_name:cai,header_url:baidu.com,gender:0,province:廣東省,city:深圳,system:anroid,platform:wx}'); console.info("encode:" + str_aes_encode); var str = "m/UwHV8lry6cAWbqhbpctAU148n0S3kG733jRdo3+g2gJS4w9e4/eYxoQ2DU6PYmH2Sp2JblqXwqEgiOikpcCBiLtpvp0xE7U61t2aR0zTfHylXq0p39v2Engo7sqpTBPFPAt8x7v8s4jyasGEAEIJ0gibL30j/gXh4UVYPPxR9Oz7iOiDz6fk92BUmlGz/U2pmgjrhh9tQTqDNUJDszww=="; var str_aes_decode = this.Decrypt(str); console.info("aes:" + str_aes_decode); }, Encrypt: function(word) { var srcs = fun_aes.CryptoJS.enc.Utf8.parse(word); var key = fun_aes.CryptoJS.enc.Utf8.parse("5b9c2ed3e19c40e5"); var encrypted = fun_aes.CryptoJS.AES.encrypt(srcs, key, { mode: fun_aes.CryptoJS.mode.ECB, padding: fun_aes.CryptoJS.pad.Pkcs7 }); //返回大寫十六進位制加密結果 return encrypted.toString(); }, Decrypt: function(word) { var key = fun_aes.CryptoJS.enc.Utf8.parse("5b9c2ed3e19c40e5"); //mode:CryptoJS.mode.ECB,padding: CryptoJS.pad.Pkcs7 var decrypt = fun_aes.CryptoJS.AES.decrypt(word, key, { mode: fun_aes.CryptoJS.mode.ECB, padding: fun_aes.CryptoJS.pad.Pkcs7 }); var decryptedStr = decrypt.toString(fun_aes.CryptoJS.enc.Utf8); return decryptedStr.toString(); } })
以上是前端加密解密的demo
涉及到aes.js的程式碼，如下。自己拷貝，儲存引用即可
/* CryptoJS v3.1.2 code.google.com/p/crypto-js (c) 2009-2013 by Jeff Mott. All rights reserved. code.google.com/p/crypto-js/wiki/License */ var CryptoJS=CryptoJS||function(u,p){var d={},l=d.lib={},s=function(){},t=l.Base={extend:function(a){s.prototype=this;var c=news;a&&c.mixIn(a);c.hasOwnProperty("init")||(c.init=function(){c.$super.init.apply(this,arguments)});c.init.prototype=c;c.$super=this;return c},create:function(){var a=this.extend();a.init.apply(a,arguments);return a},init:function(){},mixIn:function(a){for(var c in a)a.hasOwnProperty(c)&&(this[c]=a[c]);a.hasOwnProperty("toString")&&(this.toString=a.toString)},clone:function(){return this.init.prototype.extend(this)}}, r=l.WordArray=t.extend({init:function(a,c){a=this.words=a||[];this.sigBytes=c!=p?c:4*a.length},toString:function(a){return(a||v).stringify(this)},concat:function(a){var c=this.words,e=a.words,j=this.sigBytes;a=a.sigBytes;this.clamp();if(j%4)for(var k=0;k<a;k++)c[j+k>>>2]|=(e[k>>>2]>>>24-8*(k%4)&255)<<24-8*((j+k)%4);else if(65535<e.length)for(k=0;k<a;k+=4)c[j+k>>>2]=e[k>>>2];else c.push.apply(c,e);this.sigBytes+=a;return this},clamp:function(){var a=this.words,c=this.sigBytes;a[c>>>2]&=4294967295<< 32-8*(c%4);a.length=u.ceil(c/4)},clone:function(){var a=t.clone.call(this);a.words=this.words.slice(0);return a},random:function(a){for(var c=[],e=0;e<a;e+=4)c.push(4294967296*u.random()|0);return new r.init(c,a)}}),w=d.enc={},v=w.Hex={stringify:function(a){var c=a.words;a=a.sigBytes;for(var e=[],j=0;j<a;j++){var k=c[j>>>2]>>>24-8*(j%4)&255;e.push((k>>>4).toString(16));e.push((k&15).toString(16))}return e.join("")},parse:function(a){for(var c=a.length,e=[],j=0;j<c;j+=2)e[j>>>3]|=parseInt(a.substr(j, 2),16)<<24-4*(j%8);return new r.init(e,c/2)}},b=w.Latin1={stringify:function(a){var c=a.words;a=a.sigBytes;for(var e=[],j=0;j<a;j++)e.push(String.fromCharCode(c[j>>>2]>>>24-8*(j%4)&255));return e.join("")},parse:function(a){for(var c=a.length,e=[],j=0;j<c;j++)e[j>>>2]|=(a.charCodeAt(j)&255)<<24-8*(j%4);return new r.init(e,c)}},x=w.Utf8={stringify:function(a){try{return decodeURIComponent(escape(b.stringify(a)))}catch(c){throw Error("Malformed UTF-8 data");}},parse:function(a){return b.parse(unescape(encodeURIComponent(a)))}}, q=l.BufferedBlockAlgorithm=t.extend({reset:function(){this._data=new r.init;this._nDataBytes=0},_append:function(a){"string"==typeof a&&(a=x.parse(a));this._data.concat(a);this._nDataBytes+=a.sigBytes},_process:function(a){var c=this._data,e=c.words,j=c.sigBytes,k=this.blockSize,b=j/(4*k),b=a?u.ceil(b):u.max((b|0)-this._minBufferSize,0);a=b*k;j=u.min(4*a,j);if(a){for(var q=0;q<a;q+=k)this._doProcessBlock(e,q);q=e.splice(0,a);c.sigBytes-=j}return new r.init(q,j)},clone:function(){var a=t.clone.call(this); a._data=this._data.clone();return a},_minBufferSize:0});l.Hasher=q.extend({cfg:t.extend(),init:function(a){this.cfg=this.cfg.extend(a);this.reset()},reset:function(){q.reset.call(this);this._doReset()},update:function(a){this._append(a);this._process();return this},finalize:function(a){a&&this._append(a);return this._doFinalize()},blockSize:16,_createHelper:function(a){return function(b,e){return(new a.init(e)).finalize(b)}},_createHmacHelper:function(a){return function(b,e){return(new n.HMAC.init(a, e)).finalize(b)}}});var n=d.algo={};return d}(Math); (function(){var u=CryptoJS,p=u.lib.WordArray;u.enc.Base64={stringify:function(d){var l=d.words,p=d.sigBytes,t=this._map;d.clamp();d=[];for(var r=0;r<p;r+=3)for(var w=(l[r>>>2]>>>24-8*(r%4)&255)<<16|(l[r+1>>>2]>>>24-8*((r+1)%4)&255)<<8|l[r+2>>>2]>>>24-8*((r+2)%4)&255,v=0;4>v&&r+0.75*v<p;v++)d.push(t.charAt(w>>>6*(3-v)&63));if(l=t.charAt(64))for(;d.length%4;)d.push(l);return d.join("")},parse:function(d){var l=d.length,s=this._map,t=s.charAt(64);t&&(t=d.indexOf(t),-1!=t&&(l=t));for(var t=[],r=0,w=0;w< l;w++)if(w%4){var v=s.indexOf(d.charAt(w-1))<<2*(w%4),b=s.indexOf(d.charAt(w))>>>6-2*(w%4);t[r>>>2]|=(v|b)<<24-8*(r%4);r++}return p.create(t,r)},_map:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="}})(); (function(u){function p(b,n,a,c,e,j,k){b=b+(n&a|~n&c)+e+k;return(b<<j|b>>>32-j)+n}function d(b,n,a,c,e,j,k){b=b+(n&c|a&~c)+e+k;return(b<<j|b>>>32-j)+n}function l(b,n,a,c,e,j,k){b=b+(n^a^c)+e+k;return(b<<j|b>>>32-j)+n}function s(b,n,a,c,e,j,k){b=b+(a^(n|~c))+e+k;return(b<<j|b>>>32-j)+n}for(var t=CryptoJS,r=t.lib,w=r.WordArray,v=r.Hasher,r=t.algo,b=[],x=0;64>x;x++)b[x]=4294967296*u.abs(u.sin(x+1))|0;r=r.MD5=v.extend({_doReset:function(){this._hash=new w.init([1732584193,4023233417,2562383102,271733878])}, _doProcessBlock:function(q,n){for(var a=0;16>a;a++){var c=n+a,e=q[c];q[c]=(e<<8|e>>>24)&16711935|(e<<24|e>>>8)&4278255360}var a=this._hash.words,c=q[n+0],e=q[n+1],j=q[n+2],k=q[n+3],z=q[n+4],r=q[n+5],t=q[n+6],w=q[n+7],v=q[n+8],A=q[n+9],B=q[n+10],C=q[n+11],u=q[n+12],D=q[n+13],E=q[n+14],x=q[n+15],f=a[0],m=a[1],g=a[2],h=a[3],f=p(f,m,g,h,c,7,b[0]),h=p(h,f,m,g,e,12,b[1]),g=p(g,h,f,m,j,17,b[2]),m=p(m,g,h,f,k,22,b[3]),f=p(f,m,g,h,z,7,b[4]),h=p(h,f,m,g,r,12,b[5]),g=p(g,h,f,m,t,17,b[6]),m=p(m,g,h,f,w,22,b[7]), f=p(f,m,g,h,v,7,b[8]),h=p(h,f,m,g,A,12,b[9]),g=p(g,h,f,m,B,17,b[10]),m=p(m,g,h,f,C,22,b[11]),f=p(f,m,g,h,u,7,b[12]),h=p(h,f,m,g,D,12,b[13]),g=p(g,h,f,m,E,17,b[14]),m=p(m,g,h,f,x,22,b[15]),f=d(f,m,g,h,e,5,b[16]),h=d(h,f,m,g,t,9,b[17]),g=d(g,h,f,m,C,14,b[18]),m=d(m,g,h,f,c,20,b[19]),f=d(f,m,g,h,r,5,b[20]),h=d(h,f,m,g,B,9,b[21]),g=d(g,h,f,m,x,14,b[22]),m=d(m,g,h,f,z,20,b[23]),f=d(f,m,g,h,A,5,b[24]),h=d(h,f,m,g,E,9,b[25]),g=d(g,h,f,m,k,14,b[26]),m=d(m,g,h,f,v,20,b[27]),f=d(f,m,g,h,D,5,b[28]),h=d(h,f, m,g,j,9,b[29]),g=d(g,h,f,m,w,14,b[30]),m=d(m,g,h,f,u,20,b[31]),f=l(f,m,g,h,r,4,b[32]),h=l(h,f,m,g,v,11,b[33]),g=l(g,h,f,m,C,16,b[34]),m=l(m,g,h,f,E,23,b[35]),f=l(f,m,g,h,e,4,b[36]),h=l(h,f,m,g,z,11,b[37]),g=l(g,h,f,m,w,16,b[38]),m=l(m,g,h,f,B,23,b[39]),f=l(f,m,g,h,D,4,b[40]),h=l(h,f,m,g,c,11,b[41]),g=l(g,h,f,m,k,16,b[42]),m=l(m,g,h,f,t,23,b[43]),f=l(f,m,g,h,A,4,b[44]),h=l(h,f,m,g,u,11,b[45]),g=l(g,h,f,m,x,16,b[46]),m=l(m,g,h,f,j,23,b[47]),f=s(f,m,g,h,c,6,b[48]),h=s(h,f,m,g,w,10,b[49]),g=s(g,h,f,m, E,15,b[50]),m=s(m,g,h,f,r,21,b[51]),f=s(f,m,g,h,u,6,b[52]),h=s(h,f,m,g,k,10,b[53]),g=s(g,h,f,m,B,15,b[54]),m=s(m,g,h,f,e,21,b[55]),f=s(f,m,g,h,v,6,b[56]),h=s(h,f,m,g,x,10,b[57]),g=s(g,h,f,m,t,15,b[58]),m=s(m,g,h,f,D,21,b[59]),f=s(f,m,g,h,z,6,b[60]),h=s(h,f,m,g,C,10,b[61]),g=s(g,h,f,m,j,15,b[62]),m=s(m,g,h,f,A,21,b[63]);a[0]=a[0]+f|0;a[1]=a[1]+m|0;a[2]=a[2]+g|0;a[3]=a[3]+h|0},_doFinalize:function(){var b=this._data,n=b.words,a=8*this._nDataBytes,c=8*b.sigBytes;n[c>>>5]|=128<<24-c%32;var e=u.floor(a/ 4294967296);n[(c+64>>>9<<4)+15]=(e<<8|e>>>24)&16711935|(e<<24|e>>>8)&4278255360;n[(c+64>>>9<<4)+14]=(a<<8|a>>>24)&16711935|(a<<24|a>>>8)&4278255360;b.sigBytes=4*(n.length+1);this._process();b=this._hash;n=b.words;for(a=0;4>a;a++)c=n[a],n[a]=(c<<8|c>>>24)&16711935|(c<<24|c>>>8)&4278255360;return b},clone:function(){var b=v.clone.call(this);b._hash=this._hash.clone();return b}});t.MD5=v._createHelper(r);t.HmacMD5=v._createHmacHelper(r)})(Math); (function(){var u=CryptoJS,p=u.lib,d=p.Base,l=p.WordArray,p=u.algo,s=p.EvpKDF=d.extend({cfg:d.extend({keySize:4,hasher:p.MD5,iterations:1}),init:function(d){this.cfg=this.cfg.extend(d)},compute:function(d,r){for(var p=this.cfg,s=p.hasher.create(),b=l.create(),u=b.words,q=p.keySize,p=p.iterations;u.length<q;){n&&s.update(n);var n=s.update(d).finalize(r);s.reset();for(var a=1;a<p;a++)n=s.finalize(n),s.reset();b.concat(n)}b.sigBytes=4*q;return b}});u.EvpKDF=function(d,l,p){return s.create(p).compute(d, l)}})(); CryptoJS.lib.Cipher||function(u){var p=CryptoJS,d=p.lib,l=d.Base,s=d.WordArray,t=d.BufferedBlockAlgorithm,r=p.enc.Base64,w=p.algo.EvpKDF,v=d.Cipher=t.extend({cfg:l.extend(),createEncryptor:function(e,a){return this.create(this._ENC_XFORM_MODE,e,a)},createDecryptor:function(e,a){return this.create(this._DEC_XFORM_MODE,e,a)},init:function(e,a,b){this.cfg=this.cfg.extend(b);this._xformMode=e;this._key=a;this.reset()},reset:function(){t.reset.call(this);this._doReset()},process:function(e){this._append(e);return this._process()}, finalize:function(e){e&&this._append(e);return this._doFinalize()},keySize:4,ivSize:4,_ENC_XFORM_MODE:1,_DEC_XFORM_MODE:2,_createHelper:function(e){return{encrypt:function(b,k,d){return("string"==typeof k?c:a).encrypt(e,b,k,d)},decrypt:function(b,k,d){return("string"==typeof k?c:a).decrypt(e,b,k,d)}}}});d.StreamCipher=v.extend({_doFinalize:function(){return this._process(!0)},blockSize:1});var b=p.mode={},x=function(e,a,b){var c=this._iv;c?this._iv=u:c=this._prevBlock;for(var d=0;d<b;d++)e[a+d]^= c[d]},q=(d.BlockCipherMode=l.extend({createEncryptor:function(e,a){return this.Encryptor.create(e,a)},createDecryptor:function(e,a){return this.Decryptor.create(e,a)},init:function(e,a){this._cipher=e;this._iv=a}})).extend();q.Encryptor=q.extend({processBlock:function(e,a){var b=this._cipher,c=b.blockSize;x.call(this,e,a,c);b.encryptBlock(e,a);this._prevBlock=e.slice(a,a+c)}});q.Decryptor=q.extend({processBlock:function(e,a){var b=this._cipher,c=b.blockSize,d=e.slice(a,a+c);b.decryptBlock(e,a);x.call(this, e,a,c);this._prevBlock=d}});b=b.CBC=q;q=(p.pad={}).Pkcs7={pad:function(a,b){for(var c=4*b,c=c-a.sigBytes%c,d=c<<24|c<<16|c<<8|c,l=[],n=0;n<c;n+=4)l.push(d);c=s.create(l,c);a.concat(c)},unpad:function(a){a.sigBytes-=a.words[a.sigBytes-1>>>2]&255}};d.BlockCipher=v.extend({cfg:v.cfg.extend({mode:b,padding:q}),reset:function(){v.reset.call(this);var a=this.cfg,b=a.iv,a=a.mode;if(this._xformMode==this._ENC_XFORM_MODE)var c=a.createEncryptor;else c=a.createDecryptor,this._minBufferSize=1;this._mode=c.call(a, this,b&&b.words)},_doProcessBlock:function(a,b){this._mode.processBlock(a,b)},_doFinalize:function(){var a=this.cfg.padding;if(this._xformMode==this._ENC_XFORM_MODE){a.pad(this._data,this.blockSize);var b=this._process(!0)}else b=this._process(!0),a.unpad(b);return b},blockSize:4});var n=d.CipherParams=l.extend({init:function(a){this.mixIn(a)},toString:function(a){return(a||this.formatter).stringify(this)}}),b=(p.format={}).OpenSSL={stringify:function(a){var b=a.ciphertext;a=a.salt;return(a?s.create([1398893684, 1701076831]).concat(a).concat(b):b).toString(r)},parse:function(a){a=r.parse(a);var b=a.words;if(1398893684==b[0]&&1701076831==b[1]){var c=s.create(b.slice(2,4));b.splice(0,4);a.sigBytes-=16}return n.create({ciphertext:a,salt:c})}},a=d.SerializableCipher=l.extend({cfg:l.extend({format:b}),encrypt:function(a,b,c,d){d=this.cfg.extend(d);var l=a.createEncryptor(c,d);b=l.finalize(b);l=l.cfg;return n.create({ciphertext:b,key:c,iv:l.iv,algorithm:a,mode:l.mode,padding:l.padding,blockSize:a.blockSize,formatter:d.format})}, decrypt:function(a,b,c,d){d=this.cfg.extend(d);b=this._parse(b,d.format);return a.createDecryptor(c,d).finalize(b.ciphertext)},_parse:function(a,b){return"string"==typeof a?b.parse(a,this):a}}),p=(p.kdf={}).OpenSSL={execute:function(a,b,c,d){d||(d=s.random(8));a=w.create({keySize:b+c}).compute(a,d);c=s.create(a.words.slice(b),4*c);a.sigBytes=4*b;return n.create({key:a,iv:c,salt:d})}},c=d.PasswordBasedCipher=a.extend({cfg:a.cfg.extend({kdf:p}),encrypt:function(b,c,d,l){l=this.cfg.extend(l);d=l.kdf.execute(d, b.keySize,b.ivSize);l.iv=d.iv;b=a.encrypt.call(this,b,c,d.key,l);b.mixIn(d);return b},decrypt:function(b,c,d,l){l=this.cfg.extend(l);c=this._parse(c,l.format);d=l.kdf.execute(d,b.keySize,b.ivSize,c.salt);l.iv=d.iv;return a.decrypt.call(this,b,c,d.key,l)}})}(); (function(){for(var u=CryptoJS,p=u.lib.BlockCipher,d=u.algo,l=[],s=[],t=[],r=[],w=[],v=[],b=[],x=[],q=[],n=[],a=[],c=0;256>c;c++)a[c]=128>c?c<<1:c<<1^283;for(var e=0,j=0,c=0;256>c;c++){var k=j^j<<1^j<<2^j<<3^j<<4,k=k>>>8^k&255^99;l[e]=k;s[k]=e;var z=a[e],F=a[z],G=a[F],y=257*a[k]^16843008*k;t[e]=y<<24|y>>>8;r[e]=y<<16|y>>>16;w[e]=y<<8|y>>>24;v[e]=y;y=16843009*G^65537*F^257*z^16843008*e;b[k]=y<<24|y>>>8;x[k]=y<<16|y>>>16;q[k]=y<<8|y>>>24;n[k]=y;e?(e=z^a[a[a[G^z]]],j^=a[a[j]]):e=j=1}var H=[0,1,2,4,8, 16,32,64,128,27,54],d=d.AES=p.extend({_doReset:function(){for(var a=this._key,c=a.words,d=a.sigBytes/4,a=4*((this._nRounds=d+6)+1),e=this._keySchedule=[],j=0;j<a;j++)if(j<d)e[j]=c[j];else{var k=e[j-1];j%d?6<d&&4==j%d&&(k=l[k>>>24]<<24|l[k>>>16&255]<<16|l[k>>>8&255]<<8|l[k&255]):(k=k<<8|k>>>24,k=l[k>>>24]<<24|l[k>>>16&255]<<16|l[k>>>8&255]<<8|l[k&255],k^=H[j/d|0]<<24);e[j]=e[j-d]^k}c=this._invKeySchedule=[];for(d=0;d<a;d++)j=a-d,k=d%4?e[j]:e[j-4],c[d]=4>d||4>=j?k:b[l[k>>>24]]^x[l[k>>>16&255]]^q[l[k>>> 8&255]]^n[l[k&255]]},encryptBlock:function(a,b){this._doCryptBlock(a,b,this._keySchedule,t,r,w,v,l)},decryptBlock:function(a,c){var d=a[c+1];a[c+1]=a[c+3];a[c+3]=d;this._doCryptBlock(a,c,this._invKeySchedule,b,x,q,n,s);d=a[c+1];a[c+1]=a[c+3];a[c+3]=d},_doCryptBlock:function(a,b,c,d,e,j,l,f){for(var m=this._nRounds,g=a[b]^c[0],h=a[b+1]^c[1],k=a[b+2]^c[2],n=a[b+3]^c[3],p=4,r=1;r<m;r++)var q=d[g>>>24]^e[h>>>16&255]^j[k>>>8&255]^l[n&255]^c[p++],s=d[h>>>24]^e[k>>>16&255]^j[n>>>8&255]^l[g&255]^c[p++],t= d[k>>>24]^e[n>>>16&255]^j[g>>>8&255]^l[h&255]^c[p++],n=d[n>>>24]^e[g>>>16&255]^j[h>>>8&255]^l[k&255]^c[p++],g=q,h=s,k=t;q=(f[g>>>24]<<24|f[h>>>16&255]<<16|f[k>>>8&255]<<8|f[n&255])^c[p++];s=(f[h>>>24]<<24|f[k>>>16&255]<<16|f[n>>>8&255]<<8|f[g&255])^c[p++];t=(f[k>>>24]<<24|f[n>>>16&255]<<16|f[g>>>8&255]<<8|f[h&255])^c[p++];n=(f[n>>>24]<<24|f[g>>>16&255]<<16|f[h>>>8&255]<<8|f[k&255])^c[p++];a[b]=q;a[b+1]=s;a[b+2]=t;a[b+3]=n},keySize:8});u.AES=p._createHelper(d)})(); CryptoJS.mode.ECB = (function () { var ECB = CryptoJS.lib.BlockCipherMode.extend(); ECB.Encryptor = ECB.extend({ processBlock: function (words, offset) { this._cipher.encryptBlock(words, offset); } }); ECB.Decryptor = ECB.extend({ processBlock: function (words, offset) { this._cipher.decryptBlock(words, offset); } }); return ECB; }()); module.exports = { CryptoJS: CryptoJS }
可以上github查詢（https://github.com/wzqwzq666/JS_AESencode），裡面包含了aes.js的檔案，可以引用
有人說我加密解密有用到iv偏移。在對應的方法新增此引數即可
後端java程式碼
package org.perpay.util; import java.math.BigInteger; import javax.crypto.Cipher; import javax.crypto.KeyGenerator; import javax.crypto.spec.SecretKeySpec; import org.apache.commons.codec.binary.Base64; import org.apache.commons.lang3.StringUtils; import sun.misc.BASE64Decoder; /** * AES的加密和解密 * @author libo */ public class AnanasAes { //金鑰 (需要前端和後端保持一致) private static final String KEY = "5b9c2ed3e19c40e6"; //演算法 private static final String ALGORITHMSTR = "AES/ECB/PKCS5Padding"; /** * aes解密 * @param encrypt 內容 * @return * @throws Exception */ public static String aesDecrypt(String encrypt) { try { return aesDecrypt(encrypt, KEY); } catch (Exception e) { e.printStackTrace(); return ""; } } /** * aes加密 * @param content * @return * @throws Exception */ public static String aesEncrypt(String content) { try { return aesEncrypt(content, KEY); } catch (Exception e) { e.printStackTrace(); return ""; } } /** * 將byte[]轉為各種進位制的字串 * @param bytes byte[] * @param radix 可以轉換進位制的範圍，從Character.MIN_RADIX到Character.MAX_RADIX，超出範圍後變為10進位制 * @return 轉換後的字串 */ public static String binary(byte[] bytes, int radix){ return new BigInteger(1, bytes).toString(radix);// 這裡的1代表正數 } /** * base 64 encode * @param bytes 待編碼的byte[] * @return 編碼後的base 64 code */ public static String base64Encode(byte[] bytes){ return Base64.encodeBase64String(bytes); } /** * base 64 decode * @param base64Code 待解碼的base 64 code * @return 解碼後的byte[] * @throws Exception */ public static byte[] base64Decode(String base64Code) throws Exception{ return StringUtils.isEmpty(base64Code) ? null : new BASE64Decoder().decodeBuffer(base64Code); } /** * AES加密 * @param content 待加密的內容 * @param encryptKey 加密金鑰 * @return 加密後的byte[] * @throws Exception */ public static byte[] aesEncryptToBytes(String content, String encryptKey) throws Exception { KeyGenerator kgen = KeyGenerator.getInstance("AES"); kgen.init(128); Cipher cipher = Cipher.getInstance(ALGORITHMSTR); cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(encryptKey.getBytes(), "AES")); return cipher.doFinal(content.getBytes("utf-8")); } /** * AES加密為base 64 code * @param content 待加密的內容 * @param encryptKey 加密金鑰 * @return 加密後的base 64 code * @throws Exception */ public static String aesEncrypt(String content, String encryptKey) throws Exception { return base64Encode(aesEncryptToBytes(content, encryptKey)); } /** * AES解密 * @param encryptBytes 待解密的byte[] * @param decryptKey 解密金鑰 * @return 解密後的String * @throws Exception */ public static String aesDecryptByBytes(byte[] encryptBytes, String decryptKey) throws Exception { KeyGenerator kgen = KeyGenerator.getInstance("AES"); kgen.init(128); Cipher cipher = Cipher.getInstance(ALGORITHMSTR); cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(decryptKey.getBytes(), "AES")); byte[] decryptBytes = cipher.doFinal(encryptBytes); return new String(decryptBytes); } /** * 將base 64 code AES解密 * @param encryptStr 待解密的base 64 code * @param decryptKey 解密金鑰 * @return 解密後的string * @throws Exception */ public static String aesDecrypt(String encryptStr, String decryptKey) throws Exception { return StringUtils.isEmpty(encryptStr) ? null : aesDecryptByBytes(base64Decode(encryptStr), decryptKey); } /** * 測試 */ public static void main(String[] args) throws Exception { String content = "{pwd:{app_id:1234567890,user_name:user_info,nick_name:蔡少俊,header_url:baidu.com,gender:0,province:廣東省,city:深圳,system:anroid,platform:wx}"; System.out.println("加密前：" + content); System.out.println("加密金鑰和解密金鑰：" + KEY); String encrypt = aesEncrypt(content, KEY); System.out.println("加密後：" + encrypt); String decrypt = aesDecrypt(encrypt, KEY); System.out.println("解密後：" + decrypt); } }
java 需要的幾個jar包，可以直接引入即可（標頭檔案的引入可以檢視對應的jar包）
此程式碼經過測試與調整，如果有疑問，或者技術探討，可加入此群549772866