yl-gzh/common/sm4.js

import CryptoJS from './crypto-js/crypto-js.js'
// import CryptoJS from './crypto-js/crypto-js.js'
var Base64 = Base64 || require('@/common/base64.js').Base64;
import {
	getToken
} from './auth.js'
/**
 * 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 = Base64.fromUint8Array(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) {
		if (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);
				if (typeof cipherText === 'string') {
					var decrypted = sm4.sm4_crypt_ecb(ctx, Base64.toUint8Array(cipherText));
					return byteToString(decrypted);
				} else if (cipherText instanceof Array) {
					let decrypted = []
					cipherText.forEach((item) => {
						let str = sm4.sm4_crypt_ecb(ctx, Base64.toUint8Array(item))
						decrypted.push(byteToString(str))
					})
					return 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 = Base64.fromUint8Array(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, Base64.toUint8Array(cipherText));
			return byteToString(decrypted);
		} catch (e) {
			console.error(e);
			return null;
		}
	}

	function stringToByte(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;
	}

	function byteToString(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++) {
					if (_arr[st + i]) {
						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;
	}
};

function getsm4Key() {
	var token = getToken()
	if (token == null || token.length == 0) token = '1234567887654321'
	return CryptoJS.MD5(token).toString().toUpperCase().substr(16, 16)
}

function getsm4Iv() {
	var token = getToken()
	if (token == null || token.length == 0) token = '1234567887654321'
	return CryptoJS.MD5(CryptoJS.MD5(token).toString()).toString().toUpperCase().substr(16, 16)
}

function getsm4Keydef() {
	var token = '1234567887654321'
	return token
}

function getsm4Ivdef() {
	var token = '1234567887654321'
	return CryptoJS.MD5(CryptoJS.MD5(token).toString()).toString().toUpperCase().substr(16, 16)
}

function maskA(str, cd) {
	let cdc = str.length - 2 * cd;
	if (cdc > 0) {
		var reptext = ''
		for (let k = 0; k < cdc; k++) {
			reptext = reptext + '✱'
		}
		return str.substr(0, cd) + reptext + str.substr(str.length - cd);
	} else
		return str;
}

function mask(str, type) {
	return str;
	let strcd = str != null ? str.length : 0;
	if (strcd > 0) {
		if (type == 1) //姓名
		{
			if (strcd > 1) {
				let cdc = strcd - 1;
				var reptext = ''
				for (let k = 0; k < cdc; k++) {
					reptext = reptext + '✱'
				}
				return reptext + str.substr(cdc)
			} else {
				return str
			}
		} else if (type == 2) //身份证号
		{
			if (strcd == 18) {
				return str.substr(0, 3) + '✱✱✱✱✱' + str.substr(8, 1) + '✱✱✱✱✱✱✱' + str.substr(16, 1) + '✱';
			} else {
				return maskA(str, 1);
			}
		} else if (type == 3) //手机号
		{
			if (strcd == 11) {
				return str.substr(0, 2) + '✱✱✱✱✱✱✱✱' + str.substr(10, 1);
			} else {
				return maskA(str, 2);
			}
		} else if (type == 4) //住址
		{
			return maskA(str, 2);
		} else if (type == 5) //邮件地址
		{
			return maskA(str, 2);
		} else if (type == 6) {
			return maskA(str, 1);
		} else //其他
		{
			return str;
		}
	} else {
		return str
	}
}

function maskArr(arr, type) {
	return arr;
	let res = []
	arr.forEach((str) => {
		let strcd = str != null ? str.length : 0;
		if (strcd > 0) {
			if (type == 1) //姓名
			{
				if (strcd > 1) {
					let cdc = strcd - 1;
					var reptext = ''
					for (let k = 0; k < cdc; k++) {
						reptext = reptext + '✱'
					}
					res.push(reptext + str.substr(cdc))
				} else {
					res.push(str)
				}
			} else if (type == 2) //身份证号
			{
				if (strcd == 18) {
					res.push(str.substr(0, 3) + '✱✱✱✱✱' + str.substr(8, 1) + '✱✱✱✱✱✱✱' + str.substr(16, 1) +
						'✱')
				} else {
					res.push(maskA(str, 1))
				}
			} else if (type == 3) //手机号
			{
				if (strcd == 11) {
					res.push(str.substr(0, 2) + '✱✱✱✱✱✱✱✱' + str.substr(10, 1))
				} else {
					res.push(maskA(str, 2))
				}
			} else if (type == 4) //住址
			{
				res.push(maskA(str, 2))
			} else if (type == 5) //邮件地址
			{
				res.push(maskA(str, 2))
			} else if (type == 6) //邮件地址
			{
				res.push(maskA(str, 1))
			} else {
				res.push(str)
			}
		} else {
			res.push(str)
		}
	})
	return res
}

export function encrypt_ECB(data) {
	var s4 = new SM4Util();
	s4.secretKey = getsm4Key();
	return s4.encryptData_ECB(data);
}

export function encrypt_ECBdef(data) {
	var s4 = new SM4Util();
	s4.secretKey = getsm4Keydef();
	return s4.encryptData_ECB(data);
}
export function encrypt_ECBA(data, key) {
	var s4 = new SM4Util();
	s4.secretKey = key;
	return s4.encryptData_ECB(data);
}
export function decrypt_ECB(data) {
	var s4 = new SM4Util();
	s4.secretKey = getsm4Key();
	return s4.decryptData_ECB(data);
}

export function decrypt_ECBdef(data) {
	var s4 = new SM4Util();
	s4.secretKey = getsm4Keydef();
	return s4.decryptData_ECB(data);
}


export function masks(str, type) {
	return mask(str, type);
}

export function encrypt_CBC(data) {
	var s4 = new SM4Util();
	s4.secretKey = getsm4Key();
	s4.iv = getsm4Iv();
	return s4.encryptData_CBC(data);
}
export function encrypt_CBCdef(data) {
	var s4 = new SM4Util();
	s4.secretKey = getsm4Keydef();
	s4.iv = getsm4Ivdef();
	return s4.encryptData_CBC(data);
}
export function decrypt_CBC(data) {
	var s4 = new SM4Util();
	s4.secretKey = getsm4Key();
	s4.iv = getsm4Iv();
	return s4.decryptData_CBC(data);
}
export function decrypt_CBCdef(data) {
	var s4 = new SM4Util();
	s4.secretKey = getsm4Keydef();
	s4.iv = getsm4Ivdef();
	return s4.decryptData_CBC(data);
}


export function decryptData_ECB(rowdata, fields, hides) {
	if (rowdata) {
		var s4 = new SM4Util();
		s4.secretKey = getsm4Key();
		for (let j = 0; j < fields.length; j++) {
			if (rowdata[fields[j]] != null) {
				let zfc = s4.decryptData_ECB(rowdata[fields[j]]);
				zfc instanceof Array ? rowdata[fields[j]] = maskArr(zfc, hides[j]) : rowdata[fields[j]] = mask(zfc,
					hides[j])
			}
		}
	}
	return rowdata
}

export function decryptRowData_ECB(rowdata, fields, hides) {
	if (rowdata && rowdata.length > 0) {
		var s4 = new SM4Util();
		s4.secretKey = getsm4Key();
		for (let i = 0; i < rowdata.length; i++) {
			for (let j = 0; j < fields.length; j++) {
				if (rowdata[i][fields[j]] != null) {
					let srcs = rowdata[i][fields[j]]
					let zfc = s4.decryptData_ECB(srcs);
					rowdata[i][fields[j]] = mask(zfc, hides[j]);
				}
			}
		}
	}
	return rowdata
}