<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>SM4加密解密</title> <script src="https://config.net.cn/tools/static/Main/jquery.min.js"></script> <script> // Native ArrayBuffer to Base64 function base64ArrayBuffer(arrayBuffer) { var base64 = '' var encodings = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/' var bytes = new Uint8Array(arrayBuffer) var byteLength = bytes.byteLength var byteRemainder = byteLength % 3 var mainLength = byteLength - byteRemainder var a, b, c, d var chunk // Main loop deals with bytes in chunks of 3 for (var i = 0; i < mainLength; i = i + 3) { // Combine the three bytes into a single integer chunk = (bytes[i] << 16) | (bytes[i + 1] << 8) | bytes[i + 2] // Use bitmasks to extract 6-bit segments from the triplet a = (chunk & 16515072) >> 18 // 16515072 = (2^6 - 1) << 18 b = (chunk & 258048) >> 12 // 258048 = (2^6 - 1) << 12 c = (chunk & 4032) >> 6 // 4032 = (2^6 - 1) << 6 d = chunk & 63 // 63 = 2^6 - 1 // Convert the raw binary segments to the appropriate ASCII encoding base64 += encodings[a] + encodings[b] + encodings[c] + encodings[d] } // Deal with the remaining bytes and padding if (byteRemainder == 1) { chunk = bytes[mainLength] a = (chunk & 252) >> 2 // 252 = (2^6 - 1) << 2 // Set the 4 least significant bits to zero b = (chunk & 3) << 4 // 3 = 2^2 - 1 base64 += encodings[a] + encodings[b] + '==' } else if (byteRemainder == 2) { chunk = (bytes[mainLength] << 8) | bytes[mainLength + 1] a = (chunk & 64512) >> 10 // 64512 = (2^6 - 1) << 10 b = (chunk & 1008) >> 4 // 1008 = (2^6 - 1) << 4 // Set the 2 least significant bits to zero c = (chunk & 15) << 2 // 15 = 2^4 - 1 base64 += encodings[a] + encodings[b] + encodings[c] + '=' } return base64 } (function() { var base64EncodeChars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/', base64DecodeChars = new Array(( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), 62, ( - 1), ( - 1), ( - 1), 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), ( - 1), 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, ( - 1), ( - 1), ( - 1), ( - 1), ( - 1)); this.base64encode = function(e) { var r, a, c, h, o, t; for (c = e.length, a = 0, r = ''; a < c;) { if (h = 255 & e.charCodeAt(a++), a == c) { r += base64EncodeChars.charAt(h >> 2), r += base64EncodeChars.charAt((3 & h) << 4), r += '=='; break } if (o = e.charCodeAt(a++), a == c) { r += base64EncodeChars.charAt(h >> 2), r += base64EncodeChars.charAt((3 & h) << 4 | (240 & o) >> 4), r += base64EncodeChars.charAt((15 & o) << 2), r += '='; break } t = e.charCodeAt(a++), r += base64EncodeChars.charAt(h >> 2), r += base64EncodeChars.charAt((3 & h) << 4 | (240 & o) >> 4), r += base64EncodeChars.charAt((15 & o) << 2 | (192 & t) >> 6), r += base64EncodeChars.charAt(63 & t) } return r } this.base64decode = function(e) { var r, a, c, h, o, t, d; for (t = e.length, o = 0, d = ''; o < t;) { do r = base64DecodeChars[255 & e.charCodeAt(o++)]; while (o < t && r == -1); if (r == -1) break; do a = base64DecodeChars[255 & e.charCodeAt(o++)]; while (o < t && a == -1); if (a == -1) break; d += String.fromCharCode(r << 2 | (48 & a) >> 4); do { if (c = 255 & e.charCodeAt(o++), 61 == c) return d; c = base64DecodeChars[c] } while ( o < t && c == - 1 ); if (c == -1) break; d += String.fromCharCode((15 & a) << 4 | (60 & c) >> 2); do { if (h = 255 & e.charCodeAt(o++), 61 == h) return d; h = base64DecodeChars[h] } while ( o < t && h == - 1 ); if (h == -1) break; d += String.fromCharCode((3 & c) << 6 | h) } return d } this.hexToBase64 = function(str) { return base64encode(String.fromCharCode.apply(null, str.replace(/\r|\n/g, "").replace(/([\da-fA-F]{2}) ?/g, "0x$1 ").replace(/ +$/, "").split(" "))); } this.Base64Tohex = function(str) { for (var i = 0, bin = base64decode(str.replace(/[ \r\n]+$/, "")), hex = []; i < bin.length; ++i) { var tmp = bin.charCodeAt(i).toString(16); if (tmp.length === 1) tmp = "0" + tmp; hex[hex.length] = tmp; } return hex.join(""); } }) (); //hexToBase64 Base64Tohex base64decode base64encode function bytesToString(bytes){ return hexToString(bytesToHex(bytes)); } function bytesToBase64(bytes){ return base64ArrayBuffer(bytes); } // Convert a byte array to a hex string function bytesToHex(bytes) { for (var hex = [], i = 0; i < bytes.length; i++) { hex.push((bytes[i] >>> 4).toString(16)); hex.push((bytes[i] & 0xF).toString(16)); } return hex.join(""); } function stringToBase64(str){ return base64encode(str); } function stringToBytes(str){ return hexToBytes(stringToHex(str)); } // Convert a ASCII string to a hex string function stringToHex(str) { return str.split("").map(function(c) { return ("0" + c.charCodeAt(0).toString(16)).slice(-2); }).join(""); } function hexToBytes(hex) { for (var bytes = [], c = 0; c < hex.length; c += 2) bytes.push(parseInt(hex.substr(c, 2), 16)); return bytes; } // Convert a hex string to a ASCII string function hexToString(hexStr) { var hex = hexStr.toString();//force conversion var str = ''; for (var i = 0; i < hex.length; i += 2) str += String.fromCharCode(parseInt(hex.substr(i, 2), 16)); return str; } function hexToBase64(hexStr){ return hexToBase64(hexStr); } function base64ToString(base64str){ return base64decode(base64str); } function base64ToHex(base64str){ return Base64Tohex(base64str); } function base64ToBytes(base64str){ //null } //bytesToString bytesToBase64 bytesToHex //stringToBase64 stringToBytes stringToHex //hexToBytes hexToString hexToBase64 //base64ToString base64ToHex </script> </head> <body> <div style="width: 1600px; margin: auto;"> <!--<table border="1" style="margin:auto;table-layout:fixed;font-size:12px;width: 1120px;" cellspacing="0">--> <h1>国密SM4加密解密</h1><h6>SM4.0（原名SMS4.0）由国家密码管理局于2012年3月21日发布。相关标准为 GM/T 0002-2012《SM4分组密码算法》（原SMS4分组密码算法）。分组长度与密钥长度均为128bit（即16Byte），在本工具中如密钥长不足时将用0x00填充。本工具未作测试，如果发现问题请给予反馈。</h6> <table style="margin:auto;table-layout:fixed;font-size:22px;width: 100%;"> <tr style=""> <th style="vertical-align:middle;width:200px;"></th> <th style="vertical-align:middle;"></th> </tr> <tr style="height: 40px;"> <td style ="text-align: right;">skey:</td> <td> <input type="text" style="width: 99%;" id="skey_value" class="input" value="cOdHFNHUNkZrjNaN"/> </td> </tr> <tr style="height: 40px;"> <td style ="text-align: right;">iv:</td> <td> <input type="text" style="width: 99%;" id="iv_value" class="input" value="oMChoRLZnTivcQyR"/> </td> </tr> <tr style="height: 40px;"> <td style ="text-align: right;">原文:</td> <td> <textarea type="text" style="width: 99%;height: 80px" id="input_value">点击绿色encrypt加密;红色decrypt解密</textarea> </td> </tr> <tr style="height: 40px;"> <td style ="text-align: right;">ECB密文(base64):</td> <td> <textarea type="text" style="width: 99%;height: 100px" id="ECBencrypt_value">5loXSskEjjBQU3uqVKWsGQ==</textarea> <select name="outType" style="font-size: 16px;position: relative;top: -100px;left: -84px;" id="outTypeA"> <option value="hex16">HEX16</option> <option value="base64">BASE64</option> <option value="utf8">UTF-8</option> <option value="array">Array</option> </select> </td> </tr> <tr style="height: 40px;"> <td style ="text-align: right;">ECB解密(UTF-8):</td> <td> <textarea type="text" style="width: 99%;height: 80px" id="ECBdecrypt_value">123456</textarea> </td> </tr> <tr> <td></td> <td> <button class="btngreen" type="button" style="background: green;color: #fff;height: 40px;font-size: 22px;width: 144px;border-radius: 4px;" id ="ECBencrypt">ECBencrypt</button> <button class="btngreen" type="button" style="background: red;color: #fff;height: 40px;font-size: 22px;width: 144px;border-radius: 4px;" id ="ECBdecrypt">ECBencrypt</button> </td> </tr> <tr style="height: 40px;"> <td style ="text-align: right;">CBC密文(base64):</td> <td> <textarea type="text" style="width: 99%;height: 100px" id="CBCencrypt_value">DnkGTN7OUaksYgnSOM8pVw==</textarea> </td> </tr> <tr style="height: 40px;"> <td style ="text-align: right;">CBC解密(UTF-8):</td> <td> <textarea type="text" style="width: 99%;height: 100px" id="CBCdecrypt_value">123456</textarea> </td> </tr> <tr> <td></td> <td> <button class="btngreen" style="background: green;color: #fff;height: 40px;font-size: 22px;width: 144px;border-radius: 4px;" type="button" id ="CBCencrypt">CBCencrypt</button> <button class="btngreen" style="background: red;color: #fff;height: 40px;font-size: 22px;width: 144px;border-radius: 4px;" type="button" id ="CBCdecrypt">CBCdecrypt</button> </td> </tr> </table> </div> <script type="text/javascript"> /** * base64js */ (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("") } }, {}] }, {}, [])("/") }); /** * 国密SM4加密算法 */ 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); }; //生成解密密钥 this.sm4_setkey_dec = function(ctx, key) { if (ctx == null) { Error("ctx is null!"); } if (key == null || key.length != 16) { Error("key error!"); } var i = 0; ctx.mode = 0; this.sm4_setkey(ctx.sk, key); ctx.sk = ctx.sk.reverse(); } 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); this.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 = ""; this.iv = ""; this.hexString = false; //加密_ECB 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; } } //解密_ECB this.decryptData_ECB = function(cipherText) { 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_dec(ctx, keyBytes); var decrypted = sm4.sm4_crypt_ecb(ctx, base64js.toByteArray(cipherText)); return byteToString(decrypted); } 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; } } //解密_CBC this.decryptData_CBC = function(cipherText) { 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_dec(ctx, keyBytes); var decrypted = sm4.sm4_crypt_cbc(ctx, ivBytes, base64js.toByteArray(cipherText)); return byteToString(decrypted); } 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; } }; $("#ECBencrypt").click(function(){ var sm4 = new SM4Util(); sm4.secretKey = $("#skey_value").val(); sm4.iv = $("#iv_value").val(); input_value = $("#input_value").val(); sm4.outTypeA = $("#outTypeA").val(); ECBencrypt_value = sm4.encryptData_ECB(input_value); if(sm4.outTypeA !="base64"){ ECBencrypt_value = base64ToHex(ECBencrypt_value); }else{ ECBencrypt_value = ECBencrypt_value; } $("#ECBencrypt_value").val(ECBencrypt_value); }); $("#ECBdecrypt").click(function(){ var sm4 = new SM4Util(); sm4.secretKey = $("#skey_value").val(); sm4.iv = $("#iv_value").val(); ECBencrypt_txt = $("#ECBencrypt_value").val(); sm4.outTypeA = $("#outTypeA").val(); if(sm4.outTypeA !="base64"){ ECBencrypt_txt = hexToBase64(ECBencrypt_txt); }else{ ECBencrypt_txt = ECBencrypt_txt; } ECBdecrypt_value = sm4.decryptData_ECB(ECBencrypt_txt); $("#ECBdecrypt_value").val(ECBdecrypt_value); }); $("#CBCencrypt").click(function(){ var sm4 = new SM4Util(); sm4.secretKey = $("#skey_value").val(); sm4.iv = $("#iv_value").val(); input_value = $("#input_value").val(); CBCencrypt_value = sm4.encryptData_CBC(input_value); $("#CBCencrypt_value").val(CBCencrypt_value); }); $("#CBCdecrypt").click(function(){ var sm4 = new SM4Util(); sm4.secretKey = $("#skey_value").val(); sm4.iv = $("#iv_value").val(); CBCencrypt_txt = $("#CBCencrypt_value").val(); CBCdecrypt_value = sm4.decryptData_CBC(CBCencrypt_txt); $("#CBCdecrypt_value").val(CBCdecrypt_value); }); </script> </body> </html>