加密方式之SM4

ゞ浴缸里的玫瑰 2021-09-20 14:26 367阅读 0赞

JS代码

/**
     * @author mc
     * @company 
     * @date 2019-05
     * 
     */
    (function(r){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=r()}else{if(typeof define===
     "function"&&define.amd){define([],r)}else{var e;if(typeof window!=="undefined"){e=window}else{if(typeof global
    !=="undefined"){e=global}else{if(typeof self!=="undefined"){e=self}else{e=this}}}e.base64js=r()}}})(function(){
    var r,e,t;return function r(e,t,n){function o(i,a){if(!t[i]){if(!e[i]){var u=typeof require=="function"&&require;if(!a&&u){
    return u(i,!0)}if(f){return f(i,!0)}var d=new Error("Cannot find module '"+i+"'");throw d.code="MODULE_NOT_FOUND",d}
    var c=t[i]={exports:{}};e[i][0].call(c.exports,function(r){var t=e[i][1][r];return o(t?t:r)},c,c.exports,r,e,t,n)}return t[i].exports}
    var f=typeof require=="function"&&require;for(var i=0;i<n.length;i++){o(n[i])}return o}({"/":[function(r,e,t){t.byteLength=c;
    t.toByteArray=v;t.fromByteArray=s;var n=[];var o=[];var f=typeof Uint8Array!=="undefined"?Uint8Array:Array;
    var i="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";for(var a=0,u=i.length;a<u;++a){n[a]=i[a];
    o[i.charCodeAt(a)]=a}o["-".charCodeAt(0)]=62;o["_".charCodeAt(0)]=63;function d(r){var e=r.length;if(e%4>0){
    throw new Error("Invalid string. Length must be a multiple of 4")}return r[e-2]==="="?2:r[e-1]==="="?1:0}
    function c(r){return r.length*3/4-d(r)}function v(r){var e,t,n,i,a;var u=r.length;i=d(r);a=new f(u*3/4-i);t=i>0?u-4:u;
    var c=0;for(e=0;e<t;e+=4){n=o[r.charCodeAt(e)]<<18|o[r.charCodeAt(e+1)]<<12|o[r.charCodeAt(e+2)]<<6|o[r.charCodeAt(e+3)];
    a[c++]=n>>16&255;a[c++]=n>>8&255;a[c++]=n&255}if(i===2){n=o[r.charCodeAt(e)]<<2|o[r.charCodeAt(e+1)]>>4;a[c++]=n&255}
    else{if(i===1){n=o[r.charCodeAt(e)]<<10|o[r.charCodeAt(e+1)]<<4|o[r.charCodeAt(e+2)]>>2;a[c++]=n>>8&255;a[c++]=n&255}}return a}
    function l(r){return n[r>>18&63]+n[r>>12&63]+n[r>>6&63]+n[r&63]}function h(r,e,t){var n;var o=[];for(var f=e;f<t;f+=3){
    n=(r[f]<<16)+(r[f+1]<<8)+r[f+2];o.push(l(n))}return o.join("")}function s(r){var e;var t=r.length;var o=t%3;var f="";var i=[];
    var a=16383;for(var u=0,d=t-o;u<d;u+=a){i.push(h(r,u,u+a>d?d:u+a))}if(o===1){e=r[t-1];f+=n[e>>2];f+=n[e<<4&63];f+="=="}else{if(o===2){
    e=(r[t-2]<<8)+r[t-1];f+=n[e>>10];f+=n[e>>4&63];f+=n[e<<2&63];f+="="}}i.push(f);return i.join("")}},{}]},{},[])("/")});
    
    
    function SM4_Context() { 
         this.mode=1;  
         this.isPadding = true;  
         this.sk = new Array(32);
    }
    
    function SM4() { 
         this.SM4_ENCRYPT=1;  
         this.SM4_DECRYPT = 0; 
         
         var SboxTable = [0xd6,0x90,0xe9,0xfe,0xcc,0xe1,0x3d,0xb7,0x16,0xb6,0x14,0xc2,0x28,0xfb,0x2c,0x05,
                0x2b,0x67,0x9a,0x76,0x2a,0xbe,0x04,0xc3,0xaa,0x44,0x13,0x26,0x49,0x86,0x06,0x99,
                0x9c,0x42,0x50,0xf4,0x91,0xef,0x98,0x7a,0x33,0x54,0x0b,0x43,0xed,0xcf,0xac,0x62,
                0xe4,0xb3,0x1c,0xa9,0xc9,0x08,0xe8,0x95,0x80,0xdf,0x94,0xfa,0x75,0x8f,0x3f,0xa6,
                0x47,0x07,0xa7,0xfc,0xf3,0x73,0x17,0xba,0x83,0x59,0x3c,0x19,0xe6,0x85,0x4f,0xa8,
                0x68,0x6b,0x81,0xb2,0x71,0x64,0xda,0x8b,0xf8,0xeb,0x0f,0x4b,0x70,0x56,0x9d,0x35,
                0x1e,0x24,0x0e,0x5e,0x63,0x58,0xd1,0xa2,0x25,0x22,0x7c,0x3b,0x01,0x21,0x78,0x87,
                0xd4,0x00,0x46,0x57,0x9f,0xd3,0x27,0x52,0x4c,0x36,0x02,0xe7,0xa0,0xc4,0xc8,0x9e,
                0xea,0xbf,0x8a,0xd2,0x40,0xc7,0x38,0xb5,0xa3,0xf7,0xf2,0xce,0xf9,0x61,0x15,0xa1,
                0xe0,0xae,0x5d,0xa4,0x9b,0x34,0x1a,0x55,0xad,0x93,0x32,0x30,0xf5,0x8c,0xb1,0xe3,
                0x1d,0xf6,0xe2,0x2e,0x82,0x66,0xca,0x60,0xc0,0x29,0x23,0xab,0x0d,0x53,0x4e,0x6f,
                0xd5,0xdb,0x37,0x45,0xde,0xfd,0x8e,0x2f,0x03,0xff,0x6a,0x72,0x6d,0x6c,0x5b,0x51,
                0x8d,0x1b,0xaf,0x92,0xbb,0xdd,0xbc,0x7f,0x11,0xd9,0x5c,0x41,0x1f,0x10,0x5a,0xd8,
                0x0a,0xc1,0x31,0x88,0xa5,0xcd,0x7b,0xbd,0x2d,0x74,0xd0,0x12,0xb8,0xe5,0xb4,0xb0,
                0x89,0x69,0x97,0x4a,0x0c,0x96,0x77,0x7e,0x65,0xb9,0xf1,0x09,0xc5,0x6e,0xc6,0x84,
                0x18,0xf0,0x7d,0xec,0x3a,0xdc,0x4d,0x20,0x79,0xee,0x5f,0x3e,0xd7,0xcb,0x39,0x48];
                
         var FK = [ 0xa3b1bac6, 0x56aa3350, 0x677d9197, 0xb27022dc ];
    
         var CK = [ 0x00070e15,0x1c232a31,0x383f464d,0x545b6269,
                    0x70777e85,0x8c939aa1,0xa8afb6bd,0xc4cbd2d9,
                    0xe0e7eef5,0xfc030a11,0x181f262d,0x343b4249,
                    0x50575e65,0x6c737a81,0x888f969d,0xa4abb2b9,
                    0xc0c7ced5,0xdce3eaf1,0xf8ff060d,0x141b2229,
                    0x30373e45,0x4c535a61,0x686f767d,0x848b9299,
                    0xa0a7aeb5,0xbcc3cad1,0xd8dfe6ed,0xf4fb0209,
                    0x10171e25,0x2c333a41,0x484f565d,0x646b7279 ];
         
         this.GET_ULONG_BE=function(b,i) {
                return (b[i] & 0xff) << 24 | ((b[i + 1] & 0xff) << 16) | ((b[i + 2] & 0xff) << 8) | (b[i + 3] & 0xff) & 0xffffffff;
         }
         
         this.PUT_ULONG_BE=function( n, b, i){
                var t1=(0xFF & (n >> 24));
                var t2=(0xFF & (n >> 16));
                var t3=(0xFF & (n >> 8));
                var t4=(0xFF & (n));
                b[i] = t1>128?t1-256:t1;
                b[i + 1] = t2>128?t2-256:t2;
                b[i + 2] = t3>128?t3-256:t3;
                b[i + 3] = t4>128?t4-256:t4;    
         }
         
         this.SHL=function(x,n){
                return (x & 0xFFFFFFFF) << n;
         }
         
         this.ROTL=function( x,  n){
                var s =this.SHL(x, n);
                var ss= x >> (32 - n);
                return this.SHL(x, n) | x >> (32 - n);
         }
         
         
         this.sm4Lt=function(ka){
                var bb = 0;
                var c = 0;
                var a = new Array(4);
                var b = new Array(4);
                this.PUT_ULONG_BE(ka, a, 0);
                b[0] = this.sm4Sbox(a[0]);
                b[1] = this.sm4Sbox(a[1]);
                b[2] = this.sm4Sbox(a[2]);
                b[3] = this.sm4Sbox(a[3]);
                bb = this.GET_ULONG_BE(b, 0);
                c = bb ^ this.ROTL(bb, 2) ^ this.ROTL(bb, 10) ^ this.ROTL(bb, 18) ^ this.ROTL(bb, 24);
                return c;
         }
    
         this.sm4F=function( x0,  x1,  x2,  x3,  rk){
                return x0 ^ this.sm4Lt(x1 ^ x2 ^ x3 ^ rk);
         }
    
         this.sm4CalciRK=function(ka){
                var bb = 0;
                var rk = 0;
                var a = new Array(4);
                var b = new Array(4);
                this.PUT_ULONG_BE(ka, a, 0);
                b[0] = this.sm4Sbox(a[0]);
                b[1] = this.sm4Sbox(a[1]);
                b[2] = this.sm4Sbox(a[2]);
                b[3] = this.sm4Sbox(a[3]);
                bb = this.GET_ULONG_BE(b, 0);
                rk = bb ^ this.ROTL(bb, 13) ^ this.ROTL(bb, 23);
                return rk;
        }     
         
         
         
         this.sm4Sbox=function(inch){
                var i = inch & 0xFF;
                var retVal = SboxTable[i];
                return  retVal>128?retVal-256:retVal;
         }
         
         this.sm4_setkey_enc = function(ctx, key){
                if (ctx == null) {
                   alert("ctx is null!");
                   return false;
                }            
                 if (key == null || key.length != 16){
                    alert("key error!");
                    return false;
                 }
                ctx.mode = this.SM4_ENCRYPT;
                this.sm4_setkey(ctx.sk, key);
                
         };
         
         this.sm4_setkey = function(SK, key){
                 var MK = new Array(4);
                 var k =  new Array(36);
                 var i = 0;
                 MK[0] = this.GET_ULONG_BE(key, 0);
                 MK[1] = this.GET_ULONG_BE(key, 4);
                 MK[2] = this.GET_ULONG_BE(key, 8);
                 MK[3] = this.GET_ULONG_BE(key, 12);
                 k[0] = MK[0] ^  FK[0];
                 k[1] = MK[1] ^  FK[1];
                 k[2] = MK[2] ^  FK[2];
                 k[3] = MK[3] ^  FK[3];
                for (var i=0; i < 32; i++){
                    k[(i + 4)] = (k[i] ^ this.sm4CalciRK(k[(i + 1)] ^ k[(i + 2)] ^ k[(i + 3)] ^ CK[i]));
                    SK[i] = k[(i + 4)];
                }
                
         }
         this.padding=function(input,mode){
            if (input == null){
                return null;
            }
            var ret =  null;
            if (mode == this.SM4_ENCRYPT){
                var p = parseInt(16 - input.length % 16);
                ret = input.slice(0);    
                for (var i = 0; i < p; i++){
                    ret[input.length + i] = p;
                }
            }else{
                var p = input[input.length - 1];
                ret=input.slice(0,input.length - p);
            }
            return ret;
        }     
         this.sm4_one_round=function(sk, input, output){
            var  i = 0;
            var ulbuf = new Array(36);
            ulbuf[0] = this.GET_ULONG_BE(input, 0);
            ulbuf[1] = this.GET_ULONG_BE(input, 4);
            ulbuf[2] = this.GET_ULONG_BE(input, 8);
            ulbuf[3] = this.GET_ULONG_BE(input, 12);
            while (i < 32){
                ulbuf[(i + 4)] = this.sm4F(ulbuf[i], ulbuf[(i + 1)], ulbuf[(i + 2)], ulbuf[(i + 3)], sk[i]);
                i++;
            }
            this.PUT_ULONG_BE(ulbuf[35], output, 0);
            this.PUT_ULONG_BE(ulbuf[34], output, 4);
            this.PUT_ULONG_BE(ulbuf[33], output, 8);
            this.PUT_ULONG_BE(ulbuf[32], output, 12);
            
        }
    
        
            
         this.sm4_crypt_ecb=function(ctx,input){
            if (input == null){
                alert("input is null!");
            }
            if ((ctx.isPadding) && (ctx.mode == this.SM4_ENCRYPT)){
                input = this.padding(input, this.SM4_ENCRYPT);
            }
            
            var i=0;
            var length = input.length;
            var bous = new Array();
            for(; length > 0; length -= 16)
            {
                var out = new Array(16);                
                var ins=input.slice(i*16,(16*(i+1)));
                this.sm4_one_round(ctx.sk, ins, out)
                bous=bous.concat(out);
                i++;
            }
            
            var output = bous;
            if (ctx.isPadding && ctx.mode == this.SM4_DECRYPT) 
            {
                output = this.padding(output, this.SM4_DECRYPT);
            }
            for(var i=0;i<output.length;i++){
              if(output[i]<0){
                 output[i]=output[i]+256;
              }
            }
            return output;
         }
            
         this.sm4_crypt_cbc=function(ctx, iv, input){  
                if (iv == null || iv.length != 16) {  
                     alert("iv error!");
                }  
                  
                if (input == null){  
                     alert("input is null!");  
                }  
                  
                if (ctx.isPadding && ctx.mode == this.SM4_ENCRYPT) {  
                    input = this.padding(input, this.SM4_ENCRYPT);  
                }  
                  
                var i = 0;  
                var length = input.length;    
                var bous =new Array();
                if (ctx.mode == this.SM4_ENCRYPT){
                    var k=0;            
                    for(; length > 0; length -= 16){  
                        var out = new Array(16);  
                        var out1 = new Array(16);
                        var ins=input.slice(k*16,(16*(k+1))); 
                       
                        for (i = 0; i < 16; i++)   
                        {  
                            out[i] = (ins[i] ^ iv[i]);  
                        }  
                        this.sm4_one_round(ctx.sk, out, out1); 
                        iv=out1.slice(0,16);
                        bous=bous.concat(out1);
                        k++;
                    }  
                }   
                else   
                {  
                    var temp = [];  
                    var k=0;
                    for(; length > 0; length -= 16)  
                    {                    
                        var out = new Array(16);  
                        var out1 = new Array(16);   
                        var ins=input.slice(k*16,(16*(k+1))); 
                        temp=ins.slice(0,16);
                        sm4_one_round(ctx.sk, ins, out);  
                        for (i = 0; i < 16; i++)   
                        {  
                            out1[i] = (out[i] ^ iv[i]);  
                        }  
                        iv=temp.slice(0,16);
                        bous=bous.concat(out1);                
                        k++;                    
                    }  
                }  
                  
                var output = bous;  
                if (ctx.isPadding && ctx.mode == this.SM4_DECRYPT)   
                {  
                    output = this.padding(output, this.SM4_DECRYPT);  
                } 
                
                for(var i=0;i<output.length;i++){
                  if(output[i]<0){
                     output[i]=output[i]+256;
                  }
                }             
                return output;  
            }  
        }
    
    
    function SM4Util() {
        this.secretKey="11HDESaAhiHHugDz";
        this.iv = "";  
        this.hexString = false;
    
        this.encryptData_ECB=function(plainText){
            try{ 
                var sm4 = new SM4(); 
                var ctx = new SM4_Context();  
                ctx.isPadding = true;                         
                ctx.mode = sm4.SM4_ENCRYPT;  
                var keyBytes= stringToByte(this.secretKey);  
                sm4.sm4_setkey_enc(ctx, keyBytes);  
                var encrypted = sm4.sm4_crypt_ecb(ctx, stringToByte(plainText));   
                var cipherText = base64js.fromByteArray(encrypted);
                if (cipherText != null && cipherText.trim().length > 0)  
                {     
                    cipherText.replace(/(\s*|\t|\r|\n)/g, "");
                }  
                return cipherText; 
            }catch (e){    
               console.error(e);
               return null;  
            } 
            
        }
        
        this.encryptData_CBC=function(plainText){  
             try{  
                    var sm4 = new SM4(); 
                    var ctx = new SM4_Context();  
                    ctx.isPadding = true;  
                    ctx.mode = sm4.SM4_ENCRYPT;  
                      
                    var keyBytes = stringToByte(this.secretKey) ;    
                    var ivBytes= stringToByte(this.iv) ;  
                      
                    sm4.sm4_setkey_enc(ctx, keyBytes);  
                    var encrypted = sm4.sm4_crypt_cbc(ctx, ivBytes, stringToByte(plainText));  
                    var cipherText = base64js.fromByteArray(encrypted);  
                    if (cipherText != null && cipherText.trim().length > 0)  
                    {  
                        cipherText.replace(/(\s*|\t|\r|\n)/g, "");  
                    }  
                    return cipherText;  
                }   
                catch ( e)   
                {  
                    console.error(e);
                    return null;  
                }  
            }  
    
        stringToByte=function(str) {
                var bytes = new Array();
                var len, c;
                len = str.length;
                for(var i = 0; i < len; i++) {
                    c = str.charCodeAt(i);
                    if(c >= 0x010000 && c <= 0x10FFFF) {
                        bytes.push(((c >> 18) & 0x07) | 0xF0);
                        bytes.push(((c >> 12) & 0x3F) | 0x80);
                        bytes.push(((c >> 6) & 0x3F) | 0x80);
                        bytes.push((c & 0x3F) | 0x80);
                    } else if(c >= 0x000800 && c <= 0x00FFFF) {
                        bytes.push(((c >> 12) & 0x0F) | 0xE0);
                        bytes.push(((c >> 6) & 0x3F) | 0x80);
                        bytes.push((c & 0x3F) | 0x80);
                    } else if(c >= 0x000080 && c <= 0x0007FF) {
                        bytes.push(((c >> 6) & 0x1F) | 0xC0);
                        bytes.push((c & 0x3F) | 0x80);
                    } else {
                        bytes.push(c & 0xFF);
                    }
                }
                return bytes;
        }
    
    
        byteToString=function(arr) {
                if(typeof arr === 'string') {
                    return arr;
                }
                var str = '',
                    _arr = arr;
                for(var i = 0; i < _arr.length; i++) {
                    var one = _arr[i].toString(2),
                        v = one.match(/^1+?(?=0)/);
                    if(v && one.length == 8) {
                        var bytesLength = v[0].length;
                        var store = _arr[i].toString(2).slice(7 - bytesLength);
                        for(var st = 1; st < bytesLength; st++) {
                            store += _arr[st + i].toString(2).slice(2);
                        }
                        str += String.fromCharCode(parseInt(store, 2));
                        i += bytesLength - 1;
                    } else {
                        str += String.fromCharCode(_arr[i]);
                    }
                }
                return str;
        }
    };
    //
    //var s4=new SM4Util();
    //console.log(s4.encryptData_ECB("ssda撒了ii&$$^##)*&6223';.,[]"));
    //s4.iv="UISwD9fW6cFh9SNS";
    //console.log(s4.encryptData_CBC("ssda撒了ii&$$^##)*&6223';.,[]"));

java代码

package com.simp.action.sm.sm4;
    
    
    import java.io.IOException;
    import java.util.regex.Matcher;
    import java.util.regex.Pattern;
    
    import com.simp.action.sm.utils.Util;
    
    /*import sun.misc.BASE64Decoder;
    import sun.misc.BASE64Encoder;*/
    import java.util.Base64;
    public class SM4Utils {
        private String secretKey = "JeF8U9wHFOMfs2Y8";
        private String iv = "UISwD9fW6cFh9SNS";
        private boolean hexString = false;
    
        public String getSecretKey() {
            return secretKey;
        }
    
        public void setSecretKey(String secretKey) {
            this.secretKey = secretKey;
        }
    
        public String getIv() {
            return iv;
        }
    
        public void setIv(String iv) {
            this.iv = iv;
        }
    
        public boolean isHexString() {
            return hexString;
        }
    
        public void setHexString(boolean hexString) {
            this.hexString = hexString;
        }
    
        public SM4Utils() {
        }
    
        public String encryptData_ECB(String plainText) {
            try {
                SM4_Context ctx = new SM4_Context();
                ctx.isPadding = true;
                ctx.mode = SM4.SM4_ENCRYPT;
    
                byte[] keyBytes;
                if (hexString) {
                    keyBytes = Util.hexStringToBytes(secretKey);
                }
                else {
                    keyBytes = secretKey.getBytes();
                }
    
                SM4 sm4 = new SM4();
                sm4.sm4_setkey_enc(ctx, keyBytes);
                byte[] encrypted = sm4.sm4_crypt_ecb(ctx, plainText.getBytes("GBK"));
                //String cipherText = new BASE64Encoder().encode(encrypted);
                String cipherText = Base64.getEncoder().encodeToString(encrypted);
                if (cipherText != null && cipherText.trim().length() > 0) {
                    Pattern p = Pattern.compile("\\s*|\t|\r|\n");
                    Matcher m = p.matcher(cipherText);
                    cipherText = m.replaceAll("");
                }
                return cipherText;
            }
            catch (Exception e) {
                e.printStackTrace();
                return null;
            }
        }
    
        public String decryptData_ECB(String cipherText) {
            try {
                SM4_Context ctx = new SM4_Context();
                ctx.isPadding = true;
                ctx.mode = SM4.SM4_DECRYPT;
    
                byte[] keyBytes;
                if (hexString) {
                    keyBytes = Util.hexStringToBytes(secretKey);
                }
                else {
                    keyBytes = secretKey.getBytes();
                }
    
                SM4 sm4 = new SM4();
                sm4.sm4_setkey_dec(ctx, keyBytes);
                byte[] decrypted = sm4.sm4_crypt_ecb(ctx,Base64.getDecoder().decode(cipherText));
                //byte[] decrypted = sm4.sm4_crypt_ecb(ctx, new BASE64Decoder().decodeBuffer(cipherText));
                return new String(decrypted, "GBK");
            }
            catch (Exception e) {
                e.printStackTrace();
                return null;
            }
        }
    
        public String encryptData_CBC(String plainText) {
            try {
                SM4_Context ctx = new SM4_Context();
                ctx.isPadding = true;
                ctx.mode = SM4.SM4_ENCRYPT;
    
                byte[] keyBytes;
                byte[] ivBytes;
                if (hexString) {
                    keyBytes = Util.hexStringToBytes(secretKey);
                    ivBytes = Util.hexStringToBytes(iv);
                }
                else {
                    keyBytes = secretKey.getBytes();
                    ivBytes = iv.getBytes();
                }
    
                SM4 sm4 = new SM4();
                sm4.sm4_setkey_enc(ctx, keyBytes);
                byte[] encrypted = sm4.sm4_crypt_cbc(ctx, ivBytes, plainText.getBytes("GBK"));
                //String cipherText = new BASE64Encoder().encode(encrypted);
                String cipherText = Base64.getEncoder().encodeToString(encrypted);
                if (cipherText != null && cipherText.trim().length() > 0) {
                    Pattern p = Pattern.compile("\\s*|\t|\r|\n");
                    Matcher m = p.matcher(cipherText);
                    cipherText = m.replaceAll("");
                }
                return cipherText;
            }
            catch (Exception e) {
                e.printStackTrace();
                return null;
            }
        }
    
        public String decryptData_CBC(String cipherText) {
            try {
                SM4_Context ctx = new SM4_Context();
                ctx.isPadding = true;
                ctx.mode = SM4.SM4_DECRYPT;
    
                byte[] keyBytes;
                byte[] ivBytes;
                if (hexString) {
                    keyBytes = Util.hexStringToBytes(secretKey);
                    ivBytes = Util.hexStringToBytes(iv);
                }
                else {
                    keyBytes = secretKey.getBytes();
                    ivBytes = iv.getBytes();
                }
    
                SM4 sm4 = new SM4();
                sm4.sm4_setkey_dec(ctx, keyBytes);
                byte[] decrypted = sm4.sm4_crypt_cbc(ctx, ivBytes, Base64.getDecoder().decode(cipherText));
                //byte[] decrypted = sm4.sm4_crypt_cbc(ctx, ivBytes, new BASE64Decoder().decodeBuffer(cipherText));
                return new String(decrypted, "GBK");
            }
            catch (Exception e) {
                e.printStackTrace();
                return null;
            }
        }
    
        public static void main(String[] args) throws IOException {
            String plainText = "talent";
    
            SM4Utils sm4 = new SM4Utils();
            sm4.secretKey = "JeF8U9wHFOMfs2Y8";
            sm4.hexString = false;
    
            System.out.println("ECB模式");//电码本
            String cipherText = sm4.encryptData_ECB(plainText);
            System.out.println("密文: " + cipherText);
            System.out.println("");
    
            plainText = sm4.decryptData_ECB(cipherText);
            System.out.println("明文: " + plainText);
            System.out.println("");
    
            System.out.println("CBC模式");//密文分组连接
            sm4.iv = "UISwD9fW6cFh9SNS";
            cipherText = sm4.encryptData_CBC(plainText);
            System.out.println("密文: " + cipherText);
            System.out.println("");
    
            plainText = sm4.decryptData_CBC(cipherText);
            System.out.println("明文: " + plainText);
        }
    }

SM4\_Context

package com.simp.action.sm.sm4;
    
    
    public class SM4_Context {
    	public int mode;
    	
    	public long[] sk;
    	
    	public boolean isPadding;
    
    	public SM4_Context() {
    		this.mode = 1;
    		this.isPadding = true;
    		this.sk = new long[32];
    	}
    }

SM4

package com.simp.action.sm.sm4;
    
    
    import java.io.ByteArrayInputStream;
    import java.io.ByteArrayOutputStream;
    
    public class SM4 {
    	public static final int SM4_ENCRYPT = 1;
    	
    	public static final int SM4_DECRYPT = 0;
    
    	private long GET_ULONG_BE(byte[] b, int i) {
    		long n = (long)(b[i] & 0xff) << 24 | (long)((b[i + 1] & 0xff) << 16) | (long)((b[i + 2] & 0xff) << 8) | (long)(b[i + 3] & 0xff) & 0xffffffffL;
    		return n;
    	}
    
    	private void PUT_ULONG_BE(long n, byte[] b, int i) {
    		b[i] = (byte)(int)(0xFF & n >> 24);
            b[i + 1] = (byte)(int)(0xFF & n >> 16);
            b[i + 2] = (byte)(int)(0xFF & n >> 8);
            b[i + 3] = (byte)(int)(0xFF & n);
    	}
    
    	private long SHL(long x, int n) {
    		return (x & 0xFFFFFFFF) << n;
    	}
    	
    	private long ROTL(long x, int n) {
    		return SHL(x, n) | x >> (32 - n);
    	}
    	
    	private void SWAP(long[] sk, int i) {
    		long t = sk[i];
    		sk[i] = sk[(31 - i)];
    		sk[(31 - i)] = t;
    	}
    	
    	public static final byte[] SboxTable = { (byte) 0xd6, (byte) 0x90, (byte) 0xe9, (byte) 0xfe,
    		(byte) 0xcc, (byte) 0xe1, 0x3d, (byte) 0xb7, 0x16, (byte) 0xb6,
    		0x14, (byte) 0xc2, 0x28, (byte) 0xfb, 0x2c, 0x05, 0x2b, 0x67,
    		(byte) 0x9a, 0x76, 0x2a, (byte) 0xbe, 0x04, (byte) 0xc3,
    		(byte) 0xaa, 0x44, 0x13, 0x26, 0x49, (byte) 0x86, 0x06,
    		(byte) 0x99, (byte) 0x9c, 0x42, 0x50, (byte) 0xf4, (byte) 0x91,
    		(byte) 0xef, (byte) 0x98, 0x7a, 0x33, 0x54, 0x0b, 0x43,
    		(byte) 0xed, (byte) 0xcf, (byte) 0xac, 0x62, (byte) 0xe4,
    		(byte) 0xb3, 0x1c, (byte) 0xa9, (byte) 0xc9, 0x08, (byte) 0xe8,
    		(byte) 0x95, (byte) 0x80, (byte) 0xdf, (byte) 0x94, (byte) 0xfa,
    		0x75, (byte) 0x8f, 0x3f, (byte) 0xa6, 0x47, 0x07, (byte) 0xa7,
    		(byte) 0xfc, (byte) 0xf3, 0x73, 0x17, (byte) 0xba, (byte) 0x83,
    		0x59, 0x3c, 0x19, (byte) 0xe6, (byte) 0x85, 0x4f, (byte) 0xa8,
    		0x68, 0x6b, (byte) 0x81, (byte) 0xb2, 0x71, 0x64, (byte) 0xda,
    		(byte) 0x8b, (byte) 0xf8, (byte) 0xeb, 0x0f, 0x4b, 0x70, 0x56,
    		(byte) 0x9d, 0x35, 0x1e, 0x24, 0x0e, 0x5e, 0x63, 0x58, (byte) 0xd1,
    		(byte) 0xa2, 0x25, 0x22, 0x7c, 0x3b, 0x01, 0x21, 0x78, (byte) 0x87,
    		(byte) 0xd4, 0x00, 0x46, 0x57, (byte) 0x9f, (byte) 0xd3, 0x27,
    		0x52, 0x4c, 0x36, 0x02, (byte) 0xe7, (byte) 0xa0, (byte) 0xc4,
    		(byte) 0xc8, (byte) 0x9e, (byte) 0xea, (byte) 0xbf, (byte) 0x8a,
    		(byte) 0xd2, 0x40, (byte) 0xc7, 0x38, (byte) 0xb5, (byte) 0xa3,
    		(byte) 0xf7, (byte) 0xf2, (byte) 0xce, (byte) 0xf9, 0x61, 0x15,
    		(byte) 0xa1, (byte) 0xe0, (byte) 0xae, 0x5d, (byte) 0xa4,
    		(byte) 0x9b, 0x34, 0x1a, 0x55, (byte) 0xad, (byte) 0x93, 0x32,
    		0x30, (byte) 0xf5, (byte) 0x8c, (byte) 0xb1, (byte) 0xe3, 0x1d,
    		(byte) 0xf6, (byte) 0xe2, 0x2e, (byte) 0x82, 0x66, (byte) 0xca,
    		0x60, (byte) 0xc0, 0x29, 0x23, (byte) 0xab, 0x0d, 0x53, 0x4e, 0x6f,
    		(byte) 0xd5, (byte) 0xdb, 0x37, 0x45, (byte) 0xde, (byte) 0xfd,
    		(byte) 0x8e, 0x2f, 0x03, (byte) 0xff, 0x6a, 0x72, 0x6d, 0x6c, 0x5b,
    		0x51, (byte) 0x8d, 0x1b, (byte) 0xaf, (byte) 0x92, (byte) 0xbb,
    		(byte) 0xdd, (byte) 0xbc, 0x7f, 0x11, (byte) 0xd9, 0x5c, 0x41,
    		0x1f, 0x10, 0x5a, (byte) 0xd8, 0x0a, (byte) 0xc1, 0x31,
    		(byte) 0x88, (byte) 0xa5, (byte) 0xcd, 0x7b, (byte) 0xbd, 0x2d,
    		0x74, (byte) 0xd0, 0x12, (byte) 0xb8, (byte) 0xe5, (byte) 0xb4,
    		(byte) 0xb0, (byte) 0x89, 0x69, (byte) 0x97, 0x4a, 0x0c,
    		(byte) 0x96, 0x77, 0x7e, 0x65, (byte) 0xb9, (byte) 0xf1, 0x09,
    		(byte) 0xc5, 0x6e, (byte) 0xc6, (byte) 0x84, 0x18, (byte) 0xf0,
    		0x7d, (byte) 0xec, 0x3a, (byte) 0xdc, 0x4d, 0x20, 0x79,
    		(byte) 0xee, 0x5f, 0x3e, (byte) 0xd7, (byte) 0xcb, 0x39, 0x48 };
    	
    	public static final int[] FK = { 0xa3b1bac6, 0x56aa3350, 0x677d9197, 0xb27022dc };
    	
    	public static final int[] CK = { 0x00070e15,0x1c232a31,0x383f464d,0x545b6269,
    		0x70777e85,0x8c939aa1,0xa8afb6bd,0xc4cbd2d9,
    		0xe0e7eef5,0xfc030a11,0x181f262d,0x343b4249,
    		0x50575e65,0x6c737a81,0x888f969d,0xa4abb2b9,
    		0xc0c7ced5,0xdce3eaf1,0xf8ff060d,0x141b2229,
    		0x30373e45,0x4c535a61,0x686f767d,0x848b9299,
    		0xa0a7aeb5,0xbcc3cad1,0xd8dfe6ed,0xf4fb0209,
    		0x10171e25,0x2c333a41,0x484f565d,0x646b7279 };
    
    	private byte sm4Sbox(byte inch) {
    		int i = inch & 0xFF;
    		byte retVal = SboxTable[i];
    		return retVal;
    	}
    
    	private long sm4Lt(long ka) {
    		long bb = 0L;
    		long c = 0L;
    		byte[] a = new byte[4];
    		byte[] b = new byte[4];
    		PUT_ULONG_BE(ka, a, 0);
    		b[0] = sm4Sbox(a[0]);
    		b[1] = sm4Sbox(a[1]);
    		b[2] = sm4Sbox(a[2]);
    		b[3] = sm4Sbox(a[3]);
    		bb = GET_ULONG_BE(b, 0);
    		c = bb ^ ROTL(bb, 2) ^ ROTL(bb, 10) ^ ROTL(bb, 18) ^ ROTL(bb, 24);
    		return c;
    	}
    
    	private long sm4F(long x0, long x1, long x2, long x3, long rk) {
    		return x0 ^ sm4Lt(x1 ^ x2 ^ x3 ^ rk);
    	}
    
    	private long sm4CalciRK(long ka) {
    		long bb = 0L;
    		long rk = 0L;
    		byte[] a = new byte[4];
    		byte[] b = new byte[4];
    		PUT_ULONG_BE(ka, a, 0);
    		b[0] = sm4Sbox(a[0]);
    		b[1] = sm4Sbox(a[1]);
    		b[2] = sm4Sbox(a[2]);
    		b[3] = sm4Sbox(a[3]);
    		bb = GET_ULONG_BE(b, 0);
    		rk = bb ^ ROTL(bb, 13) ^ ROTL(bb, 23);
    		return rk;
    	}
    
    	private void sm4_setkey(long[] SK, byte[] key) {
    		long[] MK = new long[4];
    		long[] k = new long[36];
    		int i = 0;
    		MK[0] = GET_ULONG_BE(key, 0);
    		MK[1] = GET_ULONG_BE(key, 4);
    		MK[2] = GET_ULONG_BE(key, 8);
    		MK[3] = GET_ULONG_BE(key, 12);
    		k[0] = MK[0] ^ (long) FK[0];
    		k[1] = MK[1] ^ (long) FK[1];
    		k[2] = MK[2] ^ (long) FK[2];
    		k[3] = MK[3] ^ (long) FK[3];
    		for (; i < 32; i++) {
    			k[(i + 4)] = (k[i] ^ sm4CalciRK(k[(i + 1)] ^ k[(i + 2)] ^ k[(i + 3)] ^ (long) CK[i]));
    			SK[i] = k[(i + 4)];
    		}
    	}
    
    	private void sm4_one_round(long[] sk, byte[] input, byte[] output) {
    		int i = 0;
    		long[] ulbuf = new long[36];
    		ulbuf[0] = GET_ULONG_BE(input, 0);
    		ulbuf[1] = GET_ULONG_BE(input, 4);
    		ulbuf[2] = GET_ULONG_BE(input, 8);
    		ulbuf[3] = GET_ULONG_BE(input, 12);
    		while (i < 32) {
    			ulbuf[(i + 4)] = sm4F(ulbuf[i], ulbuf[(i + 1)], ulbuf[(i + 2)], ulbuf[(i + 3)], sk[i]);
    			i++;
    		}
    		PUT_ULONG_BE(ulbuf[35], output, 0);
    		PUT_ULONG_BE(ulbuf[34], output, 4);
    		PUT_ULONG_BE(ulbuf[33], output, 8);
    		PUT_ULONG_BE(ulbuf[32], output, 12);
    	}
    
    	private byte[] padding(byte[] input, int mode) {
    		if (input == null) {
    			return null;
    		}
    		
    		byte[] ret = (byte[]) null;
    		if (mode == SM4_ENCRYPT) {
    			int p = 16 - input.length % 16;
    			ret = new byte[input.length + p];
    			System.arraycopy(input, 0, ret, 0, input.length);
    			for (int i = 0; i < p; i++) {
    				ret[input.length + i] = (byte) p;
    			}
    		} 
    		else {
    			int p = input[input.length - 1];
    			ret = new byte[input.length - p];
    			System.arraycopy(input, 0, ret, 0, input.length - p);
    		}
    		return ret;
    	}
    
    	public void sm4_setkey_enc(SM4_Context ctx, byte[] key) throws Exception {
    		if (ctx == null) {
    			throw new Exception("ctx is null!");
    		}
    		
    		if (key == null || key.length != 16) {
    			throw new Exception("key error!");
    		}
    		
    		ctx.mode = SM4_ENCRYPT;
    		sm4_setkey(ctx.sk, key);
    	}
    
    	public void sm4_setkey_dec(SM4_Context ctx, byte[] key) throws Exception {
    		if (ctx == null) {
    			throw new Exception("ctx is null!");
    		}
    		
    		if (key == null || key.length != 16) {
    			throw new Exception("key error!");
    		}
    		
    		int i = 0;
    		ctx.mode = SM4_DECRYPT;
    		sm4_setkey(ctx.sk, key);
    		for (i = 0; i < 16; i++) {
    			SWAP(ctx.sk, i);
    		}
    	}
    
    	public byte[] sm4_crypt_ecb(SM4_Context ctx, byte[] input) throws Exception {
    		if (input == null) {
    			throw new Exception("input is null!");
    		}
    	
    		if ((ctx.isPadding) && (ctx.mode == SM4_ENCRYPT)) {
    			input = padding(input, SM4_ENCRYPT);
    		}
    		
    		int length = input.length;
    		ByteArrayInputStream bins = new ByteArrayInputStream(input);
    		ByteArrayOutputStream bous = new ByteArrayOutputStream();
    		for(; length > 0; length -= 16) {
    			byte[] in = new byte[16];
    			byte[] out = new byte[16];
    			bins.read(in);
    			sm4_one_round(ctx.sk, in, out);
    			bous.write(out);
    		}
    		
    		byte[] output = bous.toByteArray();
    		if (ctx.isPadding && ctx.mode == SM4_DECRYPT) {
    			output = padding(output, SM4_DECRYPT);
    		}
    		bins.close();
    		bous.close();
    		return output;
    	}
    
    	public byte[] sm4_crypt_cbc(SM4_Context ctx, byte[] iv, byte[] input) throws Exception {
    		if (iv == null || iv.length != 16) {
    			throw new Exception("iv error!");
    		}
    		
    		if (input == null) {
    			throw new Exception("input is null!");
    		}
    		
    		if (ctx.isPadding && ctx.mode == SM4_ENCRYPT) {
    			input = padding(input, SM4_ENCRYPT);
    		}
    		
    		int i = 0;
    		int length = input.length;
    		ByteArrayInputStream bins = new ByteArrayInputStream(input);
    		ByteArrayOutputStream bous = new ByteArrayOutputStream();
    		if (ctx.mode == SM4_ENCRYPT) {
    			for(; length > 0; length -= 16) {
    				byte[] in = new byte[16];
    				byte[] out = new byte[16];
    				byte[] out1 = new byte[16];
    				
    				bins.read(in);
    				for (i = 0; i < 16; i++) {
    					out[i] = ((byte) (in[i] ^ iv[i]));
    				}
    				sm4_one_round(ctx.sk, out, out1);
    				System.arraycopy(out1, 0, iv, 0, 16);
    				bous.write(out1);
    			}
    		} 
    		else {
    			byte[] temp = new byte[16];
    			for(; length > 0; length -= 16) {
    				byte[] in = new byte[16];
    				byte[] out = new byte[16];
    				byte[] out1 = new byte[16];
    				
    				bins.read(in);
    				System.arraycopy(in, 0, temp, 0, 16);
    				sm4_one_round(ctx.sk, in, out);
    				for (i = 0; i < 16; i++) {
    					out1[i] = ((byte) (out[i] ^ iv[i]));
    				}
    				System.arraycopy(temp, 0, iv, 0, 16);
    				bous.write(out1);
    			}
    		}
    		
    		byte[] output = bous.toByteArray();
    		if (ctx.isPadding && ctx.mode == SM4_DECRYPT) {
    			output = padding(output, SM4_DECRYPT);
    		}
    		bins.close();
    		bous.close();
    		return output;
    	}
    }

注意：java代码中需要将Long类型改为int类型不然的话前端加密的密文后端解不了，因为js是弱类型语言，而java是强类型，但是java的long类型在js中会损失精度，所以需要将long类型转换成int类型就没有问题了