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// JScript source code
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export default class SoftKey
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{
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constructor() {
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}
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StrEnc = function(InString, Key)
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{
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var n;var m;
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var nlen;
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var b=Buffer.from(InString);
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var zero_buf = Buffer.from([0]);
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b = Buffer.concat([b,zero_buf]);
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nlen=b.length;
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if( b.length < 8)
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{
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nlen= 8;
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}
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var outb=Buffer.alloc(nlen);
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var inb=Buffer.alloc(nlen);
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b.copy(inb);//如果少于8，则会补0，这里主要是用于补0
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b.copy(outb);
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for(n=0;n<=(nlen-8);n=n+8)
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{
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var tmpoutb = this.sub_EnCode(inb,n,Key);
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for(m=0;m<8;m++)
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{
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outb[m+n]=tmpoutb[m];
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}
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}
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return outb.toString('hex');
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}
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StrDec = function( InString, Key)//
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{
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var n,m;
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var inb=new Buffer(InString, 'hex');
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var outb=Buffer.alloc(inb.length );
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inb.copy(outb);
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for( n = 0; n<=inb.length - 8 ;n=n+ 8)
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{
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var tmpoutb =this.sub_DeCode(inb,n,Key);
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for(m=0;m<8;m++)
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{
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outb[m+n]=tmpoutb[m];
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}
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}
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return outb.toString();
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}
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EnCode = function(inb,Key)
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{
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this.sub_EnCode(inb,0,Key);
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}
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sub_EnCode = function(inb,pos,Key )
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{
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var cnDelta, y, z, a, b, c, d;
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var outb=new Uint8Array(8);
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var n, i, nlen;
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var sum;
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var temp, temp_1;
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var buf = new Array(16);
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var temp_string;
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cnDelta = 2654435769;
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sum = 0;
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nlen = Key.length ;
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i = 0;
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for (n = 1; n <= nlen; n = n + 2)
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{
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temp_string= Key.substring(n-1, n-1+2);
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buf[i] = this.HexToInt(temp_string);
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i = i + 1;
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}
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a = 0; b = 0; c = 0; d = 0;
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for (n = 0; n <= 3; n++)
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{
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a = (buf[n] << (n * 8)) | a;
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b = (buf[n + 4] << (n * 8)) | b;
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c = (buf[n + 4 + 4] << (n * 8)) | c;
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d = (buf[n + 4 + 4 + 4] << (n * 8)) | d;
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}
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y = 0;
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z = 0;
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for (n = 0; n <= 3; n++)
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{
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y = (inb[n + pos] << (n * 8)) | y;
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z = (inb[n + 4 + pos]<< (n * 8)) | z;
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}
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n = 32;
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while (n > 0)
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{
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sum = cnDelta + sum;
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temp = (z << 4) & 0xFFFFFFFF;
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temp = (temp + a) & 0xFFFFFFFF;
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temp_1 = (z + sum) & 0xFFFFFFFF;
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temp = (temp ^ temp_1) & 0xFFFFFFFF;
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temp_1 = (z >>>5) & 0xFFFFFFFF;
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temp_1 = (temp_1 + b) & 0xFFFFFFFF;
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temp = (temp ^ temp_1) & 0xFFFFFFFF;
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temp = (temp + y) & 0xFFFFFFFF;
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y = temp & 0xFFFFFFFF;
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// y += ((z << 4) + a) ^ (z + sum) ^ ((z >> 5) + b);
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temp = (y << 4) & 0xFFFFFFFF;
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temp = (temp + c) & 0xFFFFFFFF;
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temp_1 = (y + sum) & 0xFFFFFFFF;
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temp = (temp ^ temp_1) & 0xFFFFFFFF;
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temp_1 = (y >>> 5) & 0xFFFFFFFF;
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temp_1 = (temp_1 + d) & 0xFFFFFFFF;
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temp = (temp ^ temp_1) & 0xFFFFFFFF;
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temp = (z + temp) & 0xFFFFFFFF;
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z = temp & 0xFFFFFFFF;
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// z += ((y << 4) + c) ^ (y + sum) ^ ((y >> 5) + d);
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n = n - 1;
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}
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for (n = 0; n <= 3; n++)
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{
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outb[n] = ((y >>> (n * 8)) & 255);
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outb[n + 4] = ((z >>> (n * 8)) & 255);
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}
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return outb;
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}
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DeCode = function()
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{
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sub_DeCode(inb,0,Key );
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}
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sub_DeCode = function(inb,pos,Key )
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{
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var cnDelta, y, z, a, b, c, d;
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var outb=new Uint8Array(8);
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var n, i, nlen;
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var sum;
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var temp, temp_1;
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var buf = new Array(16);
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var temp_string;
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cnDelta = 2654435769;
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sum = 3337565984;
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nlen = Key.length ;
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i = 0;
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for (n = 1; n <= nlen; n = n + 2)
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{
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temp_string= Key.substring(n-1, n-1+2);
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buf[i] = this.HexToInt(temp_string);
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i = i + 1;
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}
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a = 0; b = 0; c = 0; d = 0;
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for (n = 0; n <= 3; n++)
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{
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a = (buf[n] << (n * 8)) | a;
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b = (buf[n + 4] << (n * 8)) | b;
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c = (buf[n + 4 + 4] << (n * 8)) | c;
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d = (buf[n + 4 + 4 + 4] << (n * 8)) | d;
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}
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y = 0;
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z = 0;
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for (n = 0; n <= 3; n++)
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{
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y = (inb[n + pos] << (n * 8)) | y;
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z = (inb[n + 4 + pos]<< (n * 8)) | z;
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}
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n = 32;
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while (n > 0)
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{
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temp = (y << 4) & 0xFFFFFFFF;
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temp = (temp + c) & 0xFFFFFFFF;
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temp_1 = (y + sum) & 0xFFFFFFFF;
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temp = (temp ^ temp_1) & 0xFFFFFFFF;
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temp_1 = (y >>> 5) & 0xFFFFFFFF;
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temp_1 = (temp_1 + d) & 0xFFFFFFFF;
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temp = (temp ^ temp_1) & 0xFFFFFFFF;
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temp = (z - temp) & 0xFFFFFFFF;
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z = temp & 0xFFFFFFFF;
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// z += ((y << 4) + c) ^ (y + sum) ^ ((y >> 5) + d);
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temp = (z << 4) & 0xFFFFFFFF;
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temp = (temp + a) & 0xFFFFFFFF;
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temp_1 = (z + sum) & 0xFFFFFFFF;
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temp = (temp ^ temp_1) & 0xFFFFFFFF;
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temp_1 = (z >>>5) & 0xFFFFFFFF;
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temp_1 = (temp_1 + b) & 0xFFFFFFFF;
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temp = (temp ^ temp_1) & 0xFFFFFFFF;
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temp = ( y -temp) & 0xFFFFFFFF;
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y = temp & 0xFFFFFFFF;
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// y += ((z << 4) + a) ^ (z + sum) ^ ((z >> 5) + b);
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sum = sum-cnDelta;
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n = n - 1;
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}
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for (n = 0; n <= 3; n++)
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{
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outb[n] = ((y >>> (n * 8)) & 255);
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outb[n + 4] = ((z >>> (n * 8)) & 255);
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}
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return outb;
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}
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/////////////////////
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AddZero = function( InKey)
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{
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var nlen;
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var n;
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nlen =InKey.length;
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for(n=nlen;n<=7;n++)
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{
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InKey = "0" + InKey;
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}
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return InKey;
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}
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myconvert = function( HKey, LKey)
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{
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HKey = this.AddZero(HKey);
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LKey = this.AddZero(LKey);
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var out_data=new Uint8Array(8)
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var n;
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for(n=0;n<=3;n++)
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{
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out_data[n] = this.HexToInt(HKey.substring( n * 2, n * 2+2));
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}
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for(n=0;n<=3;n++)
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{
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out_data[n + 4] = this.HexToInt(LKey.substring( n * 2, n * 2+2));
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}
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return out_data;
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}
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////bin2hex & hex2bin
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ByteArrayToHexString = function(Inb,len)
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{
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var outstring= "";
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for (var n = 0 ;n<= len - 1;n++)
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{
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outstring= outstring+this.myhex(Inb[n]) ;
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}
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return outstring;
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}
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HexStringToByteArray = function(InString)
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{
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var nlen;
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var retutn_len;
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var n,i;
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var b;
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var temp;
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nlen = InString.length;
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if (nlen < 16) retutn_len = 16;
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retutn_len = nlen / 2;
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b = new Uint8Array(retutn_len);
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i = 0;
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for(n=0;n<nlen;n=n+2)
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{
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temp = InString.substring( n, n+2);
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b[i] = this.HexToInt(temp);
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i = i + 1;
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}
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return b;
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}
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////////
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//decimal to hex && hex2dec
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myhex = function(value) {
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if (value < 16)
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return '0' + value.toString(16);
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return value.toString(16);
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};
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HexToInt = function( s)
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{
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var hexch ="0123456789ABCDEF";
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var i, j;
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var r, n, k;
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var ch;
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s=s.toUpperCase();
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k = 1; r = 0;
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for (i = s.length; i > 0; i--)
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{
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ch = s.substring(i - 1, i-1+1);
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n = 0;
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for (j = 0; j < 16; j++)
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{
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if (ch == hexch.substring(j, j+1) )
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{
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n = j;
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}
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}
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r += (n * k);
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k *= 16;
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}
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return r;
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};
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}
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