File: libs/js/pidCrypt/javascripts/compressed/rsa_c.js

if(typeof(pidCrypt)!="undefined"&&typeof(BigInteger)!="undefined"&&typeof(SecureRandom)!="undefined"&&typeof(Arcfour)!="undefined"){function parseBigInt(b,a){return new BigInteger(b,a)}function linebrk(c,d){var a="";var b=0;while(b+d<c.length){a+=c.substring(b,b+d)+"\n";b+=d}return a+c.substring(b,c.length)}function byte2Hex(a){if(a<16){return"0"+a.toString(16)}else{return a.toString(16)}}function pkcs1unpad2(f,g){var a=f.toByteArray();var e=0;while(e<a.length&&a[e]==0){++e}if(a.length-e!=g-1||a[e]!=2){return null}++e;while(a[e]!=0){if(++e>=a.length){return null}}var c="";while(++e<a.length){c+=String.fromCharCode(a[e])}return c}function pkcs1pad2(d,f){if(f<d.length+11){alert("Message too long for RSA");return null}var e=new Array();var c=d.length-1;while(c>=0&&f>0){e[--f]=d.charCodeAt(c--)}e[--f]=0;var b=new SecureRandom();var a=new Array();while(f>2){a[0]=0;while(a[0]==0){b.nextBytes(a)}e[--f]=a[0]}e[--f]=2;e[--f]=0;return new BigInteger(e)}pidCrypt.RSA=function(){this.n=null;this.e=0;this.d=null;this.p=null;this.q=null;this.dmp1=null;this.dmq1=null;this.coeff=null};pidCrypt.RSA.prototype.doPrivate=function(a){if(this.p==null||this.q==null){return a.modPow(this.d,this.n)}var c=a.mod(this.p).modPow(this.dmp1,this.p);var b=a.mod(this.q).modPow(this.dmq1,this.q);while(c.compareTo(b)<0){c=c.add(this.p)}return c.subtract(b).multiply(this.coeff).mod(this.p).multiply(this.q).add(b)};pidCrypt.RSA.prototype.setPublic=function(c,b,a){if(typeof(a)=="undefined"){a=16}if(c!=null&&b!=null&&c.length>0&&b.length>0){this.n=parseBigInt(c,a);this.e=parseInt(b,a)}else{alert("Invalid RSA public key")}};pidCrypt.RSA.prototype.doPublic=function(a){return a.modPowInt(this.e,this.n)};pidCrypt.RSA.prototype.encryptRaw=function(d){var a=pkcs1pad2(d,(this.n.bitLength()+7)>>3);if(a==null){return null}var e=this.doPublic(a);if(e==null){return null}var b=e.toString(16);if((b.length&1)==0){return b}else{return"0"+b}};pidCrypt.RSA.prototype.encrypt=function(a){a=pidCryptUtil.encodeBase64(a);return this.encryptRaw(a)};pidCrypt.RSA.prototype.decryptRaw=function(b){var d=parseBigInt(b,16);var a=this.doPrivate(d);if(a==null){return null}return pkcs1unpad2(a,(this.n.bitLength()+7)>>3)};pidCrypt.RSA.prototype.decrypt=function(b){var a=this.decryptRaw(b);a=(a)?pidCryptUtil.decodeBase64(a):"";return a};pidCrypt.RSA.prototype.setPrivate=function(d,b,c,a){if(typeof(a)=="undefined"){a=16}if(d!=null&&b!=null&&d.length>0&&b.length>0){this.n=parseBigInt(d,a);this.e=parseInt(b,a);this.d=parseBigInt(c,a)}else{alert("Invalid RSA private key")}};pidCrypt.RSA.prototype.setPrivateEx=function(e,i,a,d,c,h,g,b,f){if(typeof(f)=="undefined"){f=16}if(e!=null&&i!=null&&e.length>0&&i.length>0){this.n=parseBigInt(e,f);this.e=parseInt(i,f);this.d=parseBigInt(a,f);this.p=parseBigInt(d,f);this.q=parseBigInt(c,f);this.dmp1=parseBigInt(h,f);this.dmq1=parseBigInt(g,f);this.coeff=parseBigInt(b,f)}else{alert("Invalid RSA private key")}};pidCrypt.RSA.prototype.generate=function(b,i){var a=new SecureRandom();var f=b>>1;this.e=parseInt(i,16);var c=new BigInteger(i,16);for(;;){for(;;){this.p=new BigInteger(b-f,1,a);if(this.p.subtract(BigInteger.ONE).gcd(c).compareTo(BigInteger.ONE)==0&&this.p.isProbablePrime(10)){break}}for(;;){this.q=new BigInteger(f,1,a);if(this.q.subtract(BigInteger.ONE).gcd(c).compareTo(BigInteger.ONE)==0&&this.q.isProbablePrime(10)){break}}if(this.p.compareTo(this.q)<=0){var h=this.p;this.p=this.q;this.q=h}var g=this.p.subtract(BigInteger.ONE);var d=this.q.subtract(BigInteger.ONE);var e=g.multiply(d);if(e.gcd(c).compareTo(BigInteger.ONE)==0){this.n=this.p.multiply(this.q);this.d=c.modInverse(e);this.dmp1=this.d.mod(g);this.dmq1=this.d.mod(d);this.coeff=this.q.modInverse(this.p);break}}};pidCrypt.RSA.prototype.getASNData=function(a){var e={};var c=[];var d=0;if(a.value&&a.type=="INTEGER"){c[d++]=a.value}if(a.sub){for(var b=0;b<a.sub.length;b++){c=c.concat(this.getASNData(a.sub[b]))}}return c};pidCrypt.RSA.prototype.setKeyFromASN=function(c,e){var d=["N","E","D","P","Q","DP","DQ","C"];var f={};var a=this.getASNData(e);switch(c){case"Public":case"public":for(var b=0;b<a.length;b++){f[d[b]]=a[b].toLowerCase()}this.setPublic(f.N,f.E,16);break;case"Private":case"private":for(var b=1;b<a.length;b++){f[d[b-1]]=a[b].toLowerCase()}this.setPrivateEx(f.N,f.E,f.D,f.P,f.Q,f.DP,f.DQ,f.C,16);break}};pidCrypt.RSA.prototype.setPublicKeyFromASN=function(a){this.setKeyFromASN("public",a)};pidCrypt.RSA.prototype.setPrivateKeyFromASN=function(a){this.setKeyFromASN("private",a)};pidCrypt.RSA.prototype.getParameters=function(){var a={};if(this.n!=null){a.n=this.n}a.e=this.e;if(this.d!=null){a.d=this.d}if(this.p!=null){a.p=this.p}if(this.q!=null){a.q=this.q}if(this.dmp1!=null){a.dmp1=this.dmp1}if(this.dmq1!=null){a.dmq1=this.dmq1}if(this.coeff!=null){a.c=this.coeff}return a}};