谁看得懂能解答我 ？重谢

JScript code

是个DES算法.....但是又不同...求解！！这个用winform程序能调用么.或者谁有相关的C#调用..能详细解答我的重谢function enString(data){ var key1 = "YHXWWLKJYXGS"; var key2 = "ZFCHHYXFL10C"; var key3 = "DES"; var enchex = strEnc(data,key1,key2,key3); return enchex;}/*** DES加密/解密* @Copyright Copyright (c) 2009* @author linsi*//** encrypt the string to string made up of hex* return the encrypted string*/function strEnc(data,firstKey,secondKey,thirdKey){ var leng = data.length; var encData = ""; var firstKeyBt,secondKeyBt,thirdKeyBt,firstLength,secondLength,thirdLength; if(firstKey != null && firstKey != ""){       firstKeyBt = getKeyBytes(firstKey);   firstLength = firstKeyBt.length; } if(secondKey != null && secondKey != ""){   secondKeyBt = getKeyBytes(secondKey);   secondLength = secondKeyBt.length; } if(thirdKey != null && thirdKey != ""){   thirdKeyBt = getKeyBytes(thirdKey);   thirdLength = thirdKeyBt.length; }    if(leng > 0){   if(leng < 4){     var bt = strToBt(data);           var encByte ;     if(firstKey != null && firstKey !="" && secondKey != null && secondKey != "" && thirdKey != null && thirdKey != ""){       var tempBt;       var x,y,z;       tempBt = bt;               for(x = 0;x < firstLength ;x ++){         tempBt = enc(tempBt,firstKeyBt[x]);       }       for(y = 0;y < secondLength ;y ++){         tempBt = enc(tempBt,secondKeyBt[y]);       }       for(z = 0;z < thirdLength ;z ++){         tempBt = enc(tempBt,thirdKeyBt[z]);       }               encByte = tempBt;             }else{       if(firstKey != null && firstKey !="" && secondKey != null && secondKey != ""){         var tempBt;         var x,y;         tempBt = bt;         for(x = 0;x < firstLength ;x ++){           tempBt = enc(tempBt,firstKeyBt[x]);         }         for(y = 0;y < secondLength ;y ++){           tempBt = enc(tempBt,secondKeyBt[y]);         }         encByte = tempBt;       }else{         if(firstKey != null && firstKey !=""){                       var tempBt;           var x = 0;           tempBt = bt;                       for(x = 0;x < firstLength ;x ++){             tempBt = enc(tempBt,firstKeyBt[x]);           }           encByte = tempBt;         }       }             }     encData = bt64ToHex(encByte);   }else{     var iterator = parseInt(leng/4);     var remainder = leng%4;     var i=0;           for(i = 0;i < iterator;i++){       var tempData = data.substring(i*4+0,i*4+4);       var tempByte = strToBt(tempData);       var encByte ;       if(firstKey != null && firstKey !="" && secondKey != null && secondKey != "" && thirdKey != null && thirdKey != ""){         var tempBt;         var x,y,z;         tempBt = tempByte;         for(x = 0;x < firstLength ;x ++){           tempBt = enc(tempBt,firstKeyBt[x]);         }         for(y = 0;y < secondLength ;y ++){           tempBt = enc(tempBt,secondKeyBt[y]);         }         for(z = 0;z < thirdLength ;z ++){           tempBt = enc(tempBt,thirdKeyBt[z]);         }         encByte = tempBt;       }else{         if(firstKey != null && firstKey !="" && secondKey != null && secondKey != ""){           var tempBt;           var x,y;           tempBt = tempByte;           for(x = 0;x < firstLength ;x ++){             tempBt = enc(tempBt,firstKeyBt[x]);           }           for(y = 0;y < secondLength ;y ++){             tempBt = enc(tempBt,secondKeyBt[y]);           }           encByte = tempBt;         }else{           if(firstKey != null && firstKey !=""){                                   var tempBt;             var x;             tempBt = tempByte;             for(x = 0;x < firstLength ;x ++){                               tempBt = enc(tempBt,firstKeyBt[x]);             }             encByte = tempBt;                         }         }       }       encData += bt64ToHex(encByte);     }           if(remainder > 0){       var remainderData = data.substring(iterator*4+0,leng);       var tempByte = strToBt(remainderData);       var encByte ;       if(firstKey != null && firstKey !="" && secondKey != null && secondKey != "" && thirdKey != null && thirdKey != ""){         var tempBt;         var x,y,z;         tempBt = tempByte;         for(x = 0;x < firstLength ;x ++){           tempBt = enc(tempBt,firstKeyBt[x]);         }         for(y = 0;y < secondLength ;y ++){           tempBt = enc(tempBt,secondKeyBt[y]);         }         for(z = 0;z < thirdLength ;z ++){           tempBt = enc(tempBt,thirdKeyBt[z]);         }         encByte = tempBt;       }else{         if(firstKey != null && firstKey !="" && secondKey != null && secondKey != ""){           var tempBt;           var x,y;           tempBt = tempByte;           for(x = 0;x < firstLength ;x ++){             tempBt = enc(tempBt,firstKeyBt[x]);           }           for(y = 0;y < secondLength ;y ++){             tempBt = enc(tempBt,secondKeyBt[y]);           }           encByte = tempBt;         }else{           if(firstKey != null && firstKey !=""){                         var tempBt;             var x;             tempBt = tempByte;             for(x = 0;x < firstLength ;x ++){               tempBt = enc(tempBt,firstKeyBt[x]);             }             encByte = tempBt;           }         }       }       encData += bt64ToHex(encByte);     }                   } } return encData;}/** chang the string into the bit array* * return bit array(it's length % 64 = 0)*/function getKeyBytes(key){ var keyBytes = new Array(); var leng = key.length; var iterator = parseInt(leng/4); var remainder = leng%4; var i = 0; for(i = 0;i < iterator; i ++){   keyBytes[i] = strToBt(key.substring(i*4+0,i*4+4)); } if(remainder > 0){   keyBytes[i] = strToBt(key.substring(i*4+0,leng)); }     return keyBytes;}/** chang the string(it's length <= 4) into the bit array* * return bit array(it's length = 64)*/function strToBt(str){   var leng = str.length; var bt = new Array(64); if(leng < 4){   var i=0,j=0,p=0,q=0;   for(i = 0;i<leng;i++){     var k = str.charCodeAt(i);     for(j=0;j<16;j++){             var pow=1,m=0;       for(m=15;m>j;m--){         pow *= 2;       }               bt[16*i+j]=parseInt(k/pow)%2;     }   }   for(p = leng;p<4;p++){     var k = 0;     for(q=0;q<16;q++){             var pow=1,m=0;       for(m=15;m>q;m--){         pow *= 2;       }               bt[16*p+q]=parseInt(k/pow)%2;     }   }   }else{   for(i = 0;i<4;i++){     var k = str.charCodeAt(i);     for(j=0;j<16;j++){             var pow=1;       for(m=15;m>j;m--){         pow *= 2;       }               bt[16*i+j]=parseInt(k/pow)%2;     }   }   } return bt;}/** chang the bit(it's length = 4) into the hex* * return hex*/function bt4ToHex(binary) { var hex; switch (binary) {   case "0000" : hex = "0"; break;   case "0001" : hex = "1"; break;   case "0010" : hex = "2"; break;   case "0011" : hex = "3"; break;   case "0100" : hex = "4"; break;   case "0101" : hex = "5"; break;   case "0110" : hex = "6"; break;   case "0111" : hex = "7"; break;   case "1000" : hex = "8"; break;   case "1001" : hex = "9"; break;   case "1010" : hex = "A"; break;   case "1011" : hex = "B"; break;   case "1100" : hex = "C"; break;   case "1101" : hex = "D"; break;   case "1110" : hex = "E"; break;   case "1111" : hex = "F"; break; } return hex;}/** chang the hex into the bit(it's length = 4)* * return the bit(it's length = 4)*/function hexToBt4(hex) { var binary; switch (hex) {   case "0" : binary = "0000"; break;   case "1" : binary = "0001"; break;   case "2" : binary = "0010"; break;   case "3" : binary = "0011"; break;   case "4" : binary = "0100"; break;   case "5" : binary = "0101"; break;   case "6" : binary = "0110"; break;   case "7" : binary = "0111"; break;   case "8" : binary = "1000"; break;   case "9" : binary = "1001"; break;   case "A" : binary = "1010"; break;   case "B" : binary = "1011"; break;   case "C" : binary = "1100"; break;   case "D" : binary = "1101"; break;   case "E" : binary = "1110"; break;   case "F" : binary = "1111"; break; } return binary;}/** chang the bit(it's length = 64) into the string* * return string*/function byteToString(byteData){ var str=""; for(i = 0;i<4;i++){   var count=0;   for(j=0;j<16;j++){             var pow=1;     for(m=15;m>j;m--){       pow*=2;     }                   count+=byteData[16*i+j]*pow;   }           if(count != 0){     str+=String.fromCharCode(count);   } } return str;}function bt64ToHex(byteData){ var hex = ""; for(i = 0;i<16;i++){   var bt = "";   for(j=0;j<4;j++){         bt += byteData[i*4+j];   }       hex+=bt4ToHex(bt); } return hex;}function hexToBt64(hex){ var binary = ""; for(i = 0;i<16;i++){   binary+=hexToBt4(hex.substring(i,i+1)); } return binary;}/** the 64 bit des core arithmetic*/function enc(dataByte,keyByte){   
 

[解决办法]
.NET本身就提供了DES算法
http://www.google.com.hk/search?q=c%23+DES&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:zh-CN:official&client=firefox-a