I've started working on the feature that will allow existing servers to upgrade to SRP.

Currently, I've added functionality that will allow the importation of hash.min.js. This is made possible by some code that executes when the 
script is loaded. This particular code doesn't pack properly, so currently I'm having the pack script append it to the end (unpacked).

This requires that clients use the packed version for two reasons. First, the unpacked code lacks the function that gets the source path. Second, 
it loads hash.min.js. The first problem can be fixed if I can figure out how to get the code to pack properly. The second problem can be solved 
by checking whether the current script is "srp.js" or "srp.min.js", and loading either (MD5.js & SHA1.js) or hash.min.js respectively.

Next we will need to write code where the server detects users who exist in the auth.models.User table, but not the srp.models.User table.

7 files changed, 407 insertions, 1 deletions

diff --git a/javascript/MD5.js b/javascript/MD5.js
new file mode 100644
index 0000000..55cb8cc
--- /dev/null
+++ b/javascript/MD5.js
@@ -0,0 +1,207 @@
+/**
+*
+*  MD5 (Message-Digest Algorithm)
+*  http://www.webtoolkit.info/
+*
+**/
+ 
+var MD5 = function (string) {
+ 
+	function RotateLeft(lValue, iShiftBits) {
+		return (lValue<<iShiftBits) | (lValue>>>(32-iShiftBits));
+	}
+ 
+	function AddUnsigned(lX,lY) {
+		var lX4,lY4,lX8,lY8,lResult;
+		lX8 = (lX & 0x80000000);
+		lY8 = (lY & 0x80000000);
+		lX4 = (lX & 0x40000000);
+		lY4 = (lY & 0x40000000);
+		lResult = (lX & 0x3FFFFFFF)+(lY & 0x3FFFFFFF);
+		if (lX4 & lY4) {
+			return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
+		}
+		if (lX4 | lY4) {
+			if (lResult & 0x40000000) {
+				return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);
+			} else {
+				return (lResult ^ 0x40000000 ^ lX8 ^ lY8);
+			}
+		} else {
+			return (lResult ^ lX8 ^ lY8);
+		}
+ 	}
+ 
+ 	function F(x,y,z) { return (x & y) | ((~x) & z); }
+ 	function G(x,y,z) { return (x & z) | (y & (~z)); }
+ 	function H(x,y,z) { return (x ^ y ^ z); }
+	function I(x,y,z) { return (y ^ (x | (~z))); }
+ 
+	function FF(a,b,c,d,x,s,ac) {
+		a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac));
+		return AddUnsigned(RotateLeft(a, s), b);
+	};
+ 
+	function GG(a,b,c,d,x,s,ac) {
+		a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac));
+		return AddUnsigned(RotateLeft(a, s), b);
+	};
+ 
+	function HH(a,b,c,d,x,s,ac) {
+		a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac));
+		return AddUnsigned(RotateLeft(a, s), b);
+	};
+ 
+	function II(a,b,c,d,x,s,ac) {
+		a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac));
+		return AddUnsigned(RotateLeft(a, s), b);
+	};
+ 
+	function ConvertToWordArray(string) {
+		var lWordCount;
+		var lMessageLength = string.length;
+		var lNumberOfWords_temp1=lMessageLength + 8;
+		var lNumberOfWords_temp2=(lNumberOfWords_temp1-(lNumberOfWords_temp1 % 64))/64;
+		var lNumberOfWords = (lNumberOfWords_temp2+1)*16;
+		var lWordArray=Array(lNumberOfWords-1);
+		var lBytePosition = 0;
+		var lByteCount = 0;
+		while ( lByteCount < lMessageLength ) {
+			lWordCount = (lByteCount-(lByteCount % 4))/4;
+			lBytePosition = (lByteCount % 4)*8;
+			lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount)<<lBytePosition));
+			lByteCount++;
+		}
+		lWordCount = (lByteCount-(lByteCount % 4))/4;
+		lBytePosition = (lByteCount % 4)*8;
+		lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80<<lBytePosition);
+		lWordArray[lNumberOfWords-2] = lMessageLength<<3;
+		lWordArray[lNumberOfWords-1] = lMessageLength>>>29;
+		return lWordArray;
+	};
+ 
+	function WordToHex(lValue) {
+		var WordToHexValue="",WordToHexValue_temp="",lByte,lCount;
+		for (lCount = 0;lCount<=3;lCount++) {
+			lByte = (lValue>>>(lCount*8)) & 255;
+			WordToHexValue_temp = "0" + lByte.toString(16);
+			WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length-2,2);
+		}
+		return WordToHexValue;
+	};
+ 
+	function Utf8Encode(string) {
+		string = string.replace(/\r\n/g,"\n");
+		var utftext = "";
+ 
+		for (var n = 0; n < string.length; n++) {
+ 
+			var c = string.charCodeAt(n);
+ 
+			if (c < 128) {
+				utftext += String.fromCharCode(c);
+			}
+			else if((c > 127) && (c < 2048)) {
+				utftext += String.fromCharCode((c >> 6) | 192);
+				utftext += String.fromCharCode((c & 63) | 128);
+			}
+			else {
+				utftext += String.fromCharCode((c >> 12) | 224);
+				utftext += String.fromCharCode(((c >> 6) & 63) | 128);
+				utftext += String.fromCharCode((c & 63) | 128);
+			}
+ 
+		}
+ 
+		return utftext;
+	};
+ 
+	var x=Array();
+	var k,AA,BB,CC,DD,a,b,c,d;
+	var S11=7, S12=12, S13=17, S14=22;
+	var S21=5, S22=9 , S23=14, S24=20;
+	var S31=4, S32=11, S33=16, S34=23;
+	var S41=6, S42=10, S43=15, S44=21;
+ 
+	string = Utf8Encode(string);
+ 
+	x = ConvertToWordArray(string);
+ 
+	a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476;
+ 
+	for (k=0;k<x.length;k+=16) {
+		AA=a; BB=b; CC=c; DD=d;
+		a=FF(a,b,c,d,x[k+0], S11,0xD76AA478);
+		d=FF(d,a,b,c,x[k+1], S12,0xE8C7B756);
+		c=FF(c,d,a,b,x[k+2], S13,0x242070DB);
+		b=FF(b,c,d,a,x[k+3], S14,0xC1BDCEEE);
+		a=FF(a,b,c,d,x[k+4], S11,0xF57C0FAF);
+		d=FF(d,a,b,c,x[k+5], S12,0x4787C62A);
+		c=FF(c,d,a,b,x[k+6], S13,0xA8304613);
+		b=FF(b,c,d,a,x[k+7], S14,0xFD469501);
+		a=FF(a,b,c,d,x[k+8], S11,0x698098D8);
+		d=FF(d,a,b,c,x[k+9], S12,0x8B44F7AF);
+		c=FF(c,d,a,b,x[k+10],S13,0xFFFF5BB1);
+		b=FF(b,c,d,a,x[k+11],S14,0x895CD7BE);
+		a=FF(a,b,c,d,x[k+12],S11,0x6B901122);
+		d=FF(d,a,b,c,x[k+13],S12,0xFD987193);
+		c=FF(c,d,a,b,x[k+14],S13,0xA679438E);
+		b=FF(b,c,d,a,x[k+15],S14,0x49B40821);
+		a=GG(a,b,c,d,x[k+1], S21,0xF61E2562);
+		d=GG(d,a,b,c,x[k+6], S22,0xC040B340);
+		c=GG(c,d,a,b,x[k+11],S23,0x265E5A51);
+		b=GG(b,c,d,a,x[k+0], S24,0xE9B6C7AA);
+		a=GG(a,b,c,d,x[k+5], S21,0xD62F105D);
+		d=GG(d,a,b,c,x[k+10],S22,0x2441453);
+		c=GG(c,d,a,b,x[k+15],S23,0xD8A1E681);
+		b=GG(b,c,d,a,x[k+4], S24,0xE7D3FBC8);
+		a=GG(a,b,c,d,x[k+9], S21,0x21E1CDE6);
+		d=GG(d,a,b,c,x[k+14],S22,0xC33707D6);
+		c=GG(c,d,a,b,x[k+3], S23,0xF4D50D87);
+		b=GG(b,c,d,a,x[k+8], S24,0x455A14ED);
+		a=GG(a,b,c,d,x[k+13],S21,0xA9E3E905);
+		d=GG(d,a,b,c,x[k+2], S22,0xFCEFA3F8);
+		c=GG(c,d,a,b,x[k+7], S23,0x676F02D9);
+		b=GG(b,c,d,a,x[k+12],S24,0x8D2A4C8A);
+		a=HH(a,b,c,d,x[k+5], S31,0xFFFA3942);
+		d=HH(d,a,b,c,x[k+8], S32,0x8771F681);
+		c=HH(c,d,a,b,x[k+11],S33,0x6D9D6122);
+		b=HH(b,c,d,a,x[k+14],S34,0xFDE5380C);
+		a=HH(a,b,c,d,x[k+1], S31,0xA4BEEA44);
+		d=HH(d,a,b,c,x[k+4], S32,0x4BDECFA9);
+		c=HH(c,d,a,b,x[k+7], S33,0xF6BB4B60);
+		b=HH(b,c,d,a,x[k+10],S34,0xBEBFBC70);
+		a=HH(a,b,c,d,x[k+13],S31,0x289B7EC6);
+		d=HH(d,a,b,c,x[k+0], S32,0xEAA127FA);
+		c=HH(c,d,a,b,x[k+3], S33,0xD4EF3085);
+		b=HH(b,c,d,a,x[k+6], S34,0x4881D05);
+		a=HH(a,b,c,d,x[k+9], S31,0xD9D4D039);
+		d=HH(d,a,b,c,x[k+12],S32,0xE6DB99E5);
+		c=HH(c,d,a,b,x[k+15],S33,0x1FA27CF8);
+		b=HH(b,c,d,a,x[k+2], S34,0xC4AC5665);
+		a=II(a,b,c,d,x[k+0], S41,0xF4292244);
+		d=II(d,a,b,c,x[k+7], S42,0x432AFF97);
+		c=II(c,d,a,b,x[k+14],S43,0xAB9423A7);
+		b=II(b,c,d,a,x[k+5], S44,0xFC93A039);
+		a=II(a,b,c,d,x[k+12],S41,0x655B59C3);
+		d=II(d,a,b,c,x[k+3], S42,0x8F0CCC92);
+		c=II(c,d,a,b,x[k+10],S43,0xFFEFF47D);
+		b=II(b,c,d,a,x[k+1], S44,0x85845DD1);
+		a=II(a,b,c,d,x[k+8], S41,0x6FA87E4F);
+		d=II(d,a,b,c,x[k+15],S42,0xFE2CE6E0);
+		c=II(c,d,a,b,x[k+6], S43,0xA3014314);
+		b=II(b,c,d,a,x[k+13],S44,0x4E0811A1);
+		a=II(a,b,c,d,x[k+4], S41,0xF7537E82);
+		d=II(d,a,b,c,x[k+11],S42,0xBD3AF235);
+		c=II(c,d,a,b,x[k+2], S43,0x2AD7D2BB);
+		b=II(b,c,d,a,x[k+9], S44,0xEB86D391);
+		a=AddUnsigned(a,AA);
+		b=AddUnsigned(b,BB);
+		c=AddUnsigned(c,CC);
+		d=AddUnsigned(d,DD);
+	}
+ 
+	var temp = WordToHex(a)+WordToHex(b)+WordToHex(c)+WordToHex(d);
+ 
+	return temp.toLowerCase();
+}
diff --git a/javascript/SHA1.js b/javascript/SHA1.js
new file mode 100644
index 0000000..e772cbe
--- /dev/null
+++ b/javascript/SHA1.js
@@ -0,0 +1,174 @@
+/**
+*
+*  Secure Hash Algorithm (SHA1)
+*  http://www.webtoolkit.info/
+*
+**/
+ 
+function SHA1 (msg) {
+ 
+	function rotate_left(n,s) {
+		var t4 = ( n<<s ) | (n>>>(32-s));
+		return t4;
+	};
+ 
+	function lsb_hex(val) {
+		var str="";
+		var i;
+		var vh;
+		var vl;
+ 
+		for( i=0; i<=6; i+=2 ) {
+			vh = (val>>>(i*4+4))&0x0f;
+			vl = (val>>>(i*4))&0x0f;
+			str += vh.toString(16) + vl.toString(16);
+		}
+		return str;
+	};
+ 
+	function cvt_hex(val) {
+		var str="";
+		var i;
+		var v;
+ 
+		for( i=7; i>=0; i-- ) {
+			v = (val>>>(i*4))&0x0f;
+			str += v.toString(16);
+		}
+		return str;
+	};
+ 
+ 
+	function Utf8Encode(string) {
+		string = string.replace(/\r\n/g,"\n");
+		var utftext = "";
+ 
+		for (var n = 0; n < string.length; n++) {
+ 
+			var c = string.charCodeAt(n);
+ 
+			if (c < 128) {
+				utftext += String.fromCharCode(c);
+			}
+			else if((c > 127) && (c < 2048)) {
+				utftext += String.fromCharCode((c >> 6) | 192);
+				utftext += String.fromCharCode((c & 63) | 128);
+			}
+			else {
+				utftext += String.fromCharCode((c >> 12) | 224);
+				utftext += String.fromCharCode(((c >> 6) & 63) | 128);
+				utftext += String.fromCharCode((c & 63) | 128);
+			}
+ 
+		}
+ 
+		return utftext;
+	};
+ 
+	var blockstart;
+	var i, j;
+	var W = new Array(80);
+	var H0 = 0x67452301;
+	var H1 = 0xEFCDAB89;
+	var H2 = 0x98BADCFE;
+	var H3 = 0x10325476;
+	var H4 = 0xC3D2E1F0;
+	var A, B, C, D, E;
+	var temp;
+ 
+	msg = Utf8Encode(msg);
+ 
+	var msg_len = msg.length;
+ 
+	var word_array = new Array();
+	for( i=0; i<msg_len-3; i+=4 ) {
+		j = msg.charCodeAt(i)<<24 | msg.charCodeAt(i+1)<<16 |
+		msg.charCodeAt(i+2)<<8 | msg.charCodeAt(i+3);
+		word_array.push( j );
+	}
+ 
+	switch( msg_len % 4 ) {
+		case 0:
+			i = 0x080000000;
+		break;
+		case 1:
+			i = msg.charCodeAt(msg_len-1)<<24 | 0x0800000;
+		break;
+ 
+		case 2:
+			i = msg.charCodeAt(msg_len-2)<<24 | msg.charCodeAt(msg_len-1)<<16 | 0x08000;
+		break;
+ 
+		case 3:
+			i = msg.charCodeAt(msg_len-3)<<24 | msg.charCodeAt(msg_len-2)<<16 | msg.charCodeAt(msg_len-1)<<8	| 0x80;
+		break;
+	}
+ 
+	word_array.push( i );
+ 
+	while( (word_array.length % 16) != 14 ) word_array.push( 0 );
+ 
+	word_array.push( msg_len>>>29 );
+	word_array.push( (msg_len<<3)&0x0ffffffff );
+ 
+ 
+	for ( blockstart=0; blockstart<word_array.length; blockstart+=16 ) {
+ 
+		for( i=0; i<16; i++ ) W[i] = word_array[blockstart+i];
+		for( i=16; i<=79; i++ ) W[i] = rotate_left(W[i-3] ^ W[i-8] ^ W[i-14] ^ W[i-16], 1);
+ 
+		A = H0;
+		B = H1;
+		C = H2;
+		D = H3;
+		E = H4;
+ 
+		for( i= 0; i<=19; i++ ) {
+			temp = (rotate_left(A,5) + ((B&C) | (~B&D)) + E + W[i] + 0x5A827999) & 0x0ffffffff;
+			E = D;
+			D = C;
+			C = rotate_left(B,30);
+			B = A;
+			A = temp;
+		}
+ 
+		for( i=20; i<=39; i++ ) {
+			temp = (rotate_left(A,5) + (B ^ C ^ D) + E + W[i] + 0x6ED9EBA1) & 0x0ffffffff;
+			E = D;
+			D = C;
+			C = rotate_left(B,30);
+			B = A;
+			A = temp;
+		}
+ 
+		for( i=40; i<=59; i++ ) {
+			temp = (rotate_left(A,5) + ((B&C) | (B&D) | (C&D)) + E + W[i] + 0x8F1BBCDC) & 0x0ffffffff;
+			E = D;
+			D = C;
+			C = rotate_left(B,30);
+			B = A;
+			A = temp;
+		}
+ 
+		for( i=60; i<=79; i++ ) {
+			temp = (rotate_left(A,5) + (B ^ C ^ D) + E + W[i] + 0xCA62C1D6) & 0x0ffffffff;
+			E = D;
+			D = C;
+			C = rotate_left(B,30);
+			B = A;
+			A = temp;
+		}
+ 
+		H0 = (H0 + A) & 0x0ffffffff;
+		H1 = (H1 + B) & 0x0ffffffff;
+		H2 = (H2 + C) & 0x0ffffffff;
+		H3 = (H3 + D) & 0x0ffffffff;
+		H4 = (H4 + E) & 0x0ffffffff;
+ 
+	}
+ 
+	var temp = cvt_hex(H0) + cvt_hex(H1) + cvt_hex(H2) + cvt_hex(H3) + cvt_hex(H4);
+ 
+	return temp.toLowerCase();
+ 
+}
diff --git a/javascript/jsPacker/build-pack-hash.sh b/javascript/jsPacker/build-pack-hash.sh
new file mode 100644
index 0000000..45e841a
--- /dev/null
+++ b/javascript/jsPacker/build-pack-hash.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+cat ../SHA1.js ../MD5.js > hash.js
+perl jsPacker.pl -fsq -e62 -i hash.js -o hash.min.js
+rm hash.js
diff --git a/javascript/jsPacker/build-pack.sh b/javascript/jsPacker/build-pack.sh
index 904b2ee..29ffa92 100644
--- a/javascript/jsPacker/build-pack.sh
+++ b/javascript/jsPacker/build-pack.sh
@@ -2,3 +2,5 @@
 cat ../SHA256.js ../prng4.js ../rng.js ../jsbn.js ../jsbn2.js ../srp.js > utils.js
 perl jsPacker.pl -fsq -e62 -i utils.js -o srp.min.js
 rm utils.js
+
+echo "var srpPath = (function(){\nvar scr=document.getElementsByTagName('script');\nreturn scr[scr.length-1].getAttribute(\"src\");\n})();" >> srp.min.js
diff --git a/javascript/jsPacker/hash.min.js b/javascript/jsPacker/hash.min.js
new file mode 100644
index 0000000..badbcca
--- /dev/null
+++ b/javascript/jsPacker/hash.min.js
@@ -0,0 +1 @@
+eval(function(p,a,c,k,e,d){e=function(c){return(c<a?'':e(parseInt(c/a)))+((c=c%a)>35?String.fromCharCode(c+29):c.toString(36))};if(!''.replace(/^/,String)){while(c--)d[e(c)]=k[c]||e(c);k=[function(e){return d[e]}];e=function(){return'\\w+'};c=1};while(c--)if(k[c])p=p.replace(new RegExp('\\b'+e(c)+'\\b','g'),k[c]);return p}('l 3U(J){l R(n,s){e 2w=(n<<s)|(n>>>(32-s));f 2w};l 3T(1J){e 1f="";e i;e 2d;e 2c;w(i=0;i<=6;i+=2){2d=(1J>>>(i*4+4))&2b;2c=(1J>>>(i*4))&2b;1f+=2d.1O(16)+2c.1O(16)}f 1f};l 1e(1J){e 1f="";e i;e v;w(i=7;i>=0;i--){v=(1J>>>(i*4))&2b;1f+=v.1O(16)}f 1f};l 1K(t){t=t.2o(/\\r\\n/g,"\\n");e u="";w(e n=0;n<t.T;n++){e c=t.L(n);Y(c<U){u+=N.M(c)}1b Y((c>2n)&&(c<2m)){u+=N.M((c>>6)|2l);u+=N.M((c&1a)|U)}1b{u+=N.M((c>>12)|2k);u+=N.M(((c>>6)&1a)|U);u+=N.M((c&1a)|U)}}f u};e 1H;e i,j;e W=2v 1L(3S);e 1G=2i;e 1F=2h;e 1E=2g;e 1D=2f;e 1C=3R;e A,B,C,D,E;e K;J=1K(J);e O=J.T;e S=2v 1L();w(i=0;i<O-3;i+=4){j=J.L(i)<<24|J.L(i+1)<<16|J.L(i+2)<<8|J.L(i+3);S.1I(j)}3Q(O%4){1W 0:i=3P;1V;1W 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G(x,y,z){f(x&z)|(y&(~z))}l H(x,y,z){f(x^y^z)}l I(x,y,z){f(y^(x|(~z)))}l q(a,b,c,d,x,s,X){a=h(a,h(h(F(b,c,d),x),X));f h(1B(a,s),b)};l p(a,b,c,d,x,s,X){a=h(a,h(h(G(b,c,d),x),X));f h(1B(a,s),b)};l o(a,b,c,d,x,s,X){a=h(a,h(h(H(b,c,d),x),X));f h(1B(a,s),b)};l m(a,b,c,d,x,s,X){a=h(a,h(h(I(b,c,d),x),X));f h(1B(a,s),b)};l 2j(t){e Z;e 1z=t.T;e 27=1z+8;e 2r=(27-(27%2s))/2s;e 1P=(2r+1)*16;e V=1L(1P-1);e 1A=0;e P=0;2q(P<1z){Z=(P-(P%4))/4;1A=(P%4)*8;V[Z]=(V[Z]|(t.L(P)<<1A));P++}Z=(P-(P%4))/4;1A=(P%4)*8;V[Z]=V[Z]|(2p<<1A);V[1P-2]=1z<<3;V[1P-1]=1z>>>29;f V};l 1g(1y){e 1M="",1N="",26,1x;w(1x=0;1x<=3;1x++){26=(1y>>>(1x*8))&3D;1N="0"+26.1O(16);1M=1M+1N.3C(1N.T-2,2)}f 1M};l 1K(t){t=t.2o(/\\r\\n/g,"\\n");e u="";w(e n=0;n<t.T;n++){e c=t.L(n);Y(c<U){u+=N.M(c)}1b Y((c>2n)&&(c<2m)){u+=N.M((c>>6)|2l);u+=N.M((c&1a)|U)}1b{u+=N.M((c>>12)|2k);u+=N.M(((c>>6)&1a)|U);u+=N.M((c&1a)|U)}}f u};e x=1L();e k,25,1Z,1Y,1X,a,b,c,d;e 1w=7,1v=12,1u=17,1t=22;e 1s=5,1r=9,1q=14,1p=20;e 1o=4,1n=11,1m=16,1l=23;e 1k=6,1j=10,1i=15,1h=21;t=1K(t);x=2j(t);a=2i;b=2h;c=2g;d=2f;w(k=0;k<x.T;k+=16){25=a;1Z=b;1Y=c;1X=d;a=q(a,b,c,d,x[k+0],1w,3B);d=q(d,a,b,c,x[k+1],1v,3A);c=q(c,d,a,b,x[k+2],1u,3z);b=q(b,c,d,a,x[k+3],1t,3y);a=q(a,b,c,d,x[k+4],1w,3x);d=q(d,a,b,c,x[k+5],1v,3w);c=q(c,d,a,b,x[k+6],1u,3v);b=q(b,c,d,a,x[k+7],1t,3u);a=q(a,b,c,d,x[k+8],1w,3t);d=q(d,a,b,c,x[k+9],1v,3s);c=q(c,d,a,b,x[k+10],1u,3r);b=q(b,c,d,a,x[k+11],1t,3q);a=q(a,b,c,d,x[k+12],1w,3p);d=q(d,a,b,c,x[k+13],1v,3o);c=q(c,d,a,b,x[k+14],1u,3n);b=q(b,c,d,a,x[k+15],1t,3m);a=p(a,b,c,d,x[k+1],1s,3l);d=p(d,a,b,c,x[k+6],1r,3k);c=p(c,d,a,b,x[k+11],1q,3j);b=p(b,c,d,a,x[k+0],1p,3i);a=p(a,b,c,d,x[k+5],1s,3h);d=p(d,a,b,c,x[k+10],1r,3g);c=p(c,d,a,b,x[k+15],1q,3f);b=p(b,c,d,a,x[k+4],1p,3e);a=p(a,b,c,d,x[k+9],1s,3d);d=p(d,a,b,c,x[k+14],1r,3c);c=p(c,d,a,b,x[k+3],1q,3b);b=p(b,c,d,a,x[k+8],1p,3a);a=p(a,b,c,d,x[k+13],1s,38);d=p(d,a,b,c,x[k+2],1r,37);c=p(c,d,a,b,x[k+7],1q,36);b=p(b,c,d,a,x[k+12],1p,35);a=o(a,b,c,d,x[k+5],1o,34);d=o(d,a,b,c,x[k+8],1n,33);c=o(c,d,a,b,x[k+11],1m,31);b=o(b,c,d,a,x[k+14],1l,2Z);a=o(a,b,c,d,x[k+1],1o,2Y);d=o(d,a,b,c,x[k+4],1n,2X);c=o(c,d,a,b,x[k+7],1m,2W);b=o(b,c,d,a,x[k+10],1l,2V);a=o(a,b,c,d,x[k+13],1o,2U);d=o(d,a,b,c,x[k+0],1n,2T);c=o(c,d,a,b,x[k+3],1m,2S);b=o(b,c,d,a,x[k+6],1l,2R);a=o(a,b,c,d,x[k+9],1o,2Q);d=o(d,a,b,c,x[k+12],1n,2P);c=o(c,d,a,b,x[k+15],1m,2O);b=o(b,c,d,a,x[k+2],1l,2N);a=m(a,b,c,d,x[k+0],1k,2M);d=m(d,a,b,c,x[k+7],1j,2L);c=m(c,d,a,b,x[k+14],1i,2K);b=m(b,c,d,a,x[k+5],1h,2J);a=m(a,b,c,d,x[k+12],1k,2I);d=m(d,a,b,c,x[k+3],1j,2H);c=m(c,d,a,b,x[k+10],1i,2G);b=m(b,c,d,a,x[k+1],1h,2F);a=m(a,b,c,d,x[k+8],1k,2E);d=m(d,a,b,c,x[k+15],1j,2D);c=m(c,d,a,b,x[k+6],1i,2C);b=m(b,c,d,a,x[k+13],1h,2B);a=m(a,b,c,d,x[k+4],1k,2A);d=m(d,a,b,c,x[k+11],1j,2z);c=m(c,d,a,b,x[k+2],1i,2y);b=m(b,c,d,a,x[k+9],1h,2x);a=h(a,25);b=h(b,1Z);c=h(c,1Y);d=h(d,1X)}e K=1g(a)+1g(b)+1g(c)+1g(d);f K.2e()}',62,243,'||||||||||||||var|return||AddUnsigned||||function|II||HH|GG|FF|||string|utftext||for|||||||||||||msg|temp|charCodeAt|fromCharCode|String|msg_len|lByteCount|0x0ffffffff|rotate_left|word_array|length|128|lWordArray||ac|if|lWordCount|||||||||lResult||63|else|lY8|lX8|cvt_hex|str|WordToHex|S44|S43|S42|S41|S34|S33|S32|S31|S24|S23|S22|S21|S14|S13|S12|S11|lCount|lValue|lMessageLength|lBytePosition|RotateLeft|H4|H3|H2|H1|H0|blockstart|push|val|Utf8Encode|Array|WordToHexValue|WordToHexValue_temp|toString|lNumberOfWords|0x40000000|lY4|lX4|lY|lX|break|case|DD|CC|BB||||||AA|lByte|lNumberOfWords_temp1|0x80000000||iShiftBits|0x0f|vl|vh|toLowerCase|0x10325476|0x98BADCFE|0xEFCDAB89|0x67452301|ConvertToWordArray|224|192|2048|127|replace|0x80|while|lNumberOfWords_temp2|64|0x3FFFFFFF|79|new|t4|0xEB86D391|0x2AD7D2BB|0xBD3AF235|0xF7537E82|0x4E0811A1|0xA3014314|0xFE2CE6E0|0x6FA87E4F|0x85845DD1|0xFFEFF47D|0x8F0CCC92|0x655B59C3|0xFC93A039|0xAB9423A7|0x432AFF97|0xF4292244|0xC4AC5665|0x1FA27CF8|0xE6DB99E5|0xD9D4D039|0x4881D05|0xD4EF3085|0xEAA127FA|0x289B7EC6|0xBEBFBC70|0xF6BB4B60|0x4BDECFA9|0xA4BEEA44|0xFDE5380C||0x6D9D6122||0x8771F681|0xFFFA3942|0x8D2A4C8A|0x676F02D9|0xFCEFA3F8|0xA9E3E905||0x455A14ED|0xF4D50D87|0xC33707D6|0x21E1CDE6|0xE7D3FBC8|0xD8A1E681|0x2441453|0xD62F105D|0xE9B6C7AA|0x265E5A51|0xC040B340|0xF61E2562|0x49B40821|0xA679438E|0xFD987193|0x6B901122|0x895CD7BE|0xFFFF5BB1|0x8B44F7AF|0x698098D8|0xFD469501|0xA8304613|0x4787C62A|0xF57C0FAF|0xC1BDCEEE|0x242070DB|0xE8C7B756|0xD76AA478|substr|255|0xC0000000|MD5|0xCA62C1D6|60|0x8F1BBCDC|59|40|0x6ED9EBA1|0x5A827999|0x08000|0x0800000|0x080000000|switch|0xC3D2E1F0|80|lsb_hex|SHA1'.split('|'),0,{}))
diff --git a/javascript/jsPacker/srp.min.js b/javascript/jsPacker/srp.min.js
index f3e9d67..8ee3cfa 100644
--- a/javascript/jsPacker/srp.min.js
+++ b/javascript/jsPacker/srp.min.js
@@ -1 +1,5 @@
-eval(function(p,a,c,k,e,d){e=function(c){return(c<a?'':e(parseInt(c/a)))+((c=c%a)>35?String.fromCharCode(c+29):c.toString(36))};if(!''.replace(/^/,String)){while(c--)d[e(c)]=k[c]||e(c);k=[function(e){return d[e]}];e=function(){return'\\w+'};c=1};while(c--)if(k[c])p=p.replace(new RegExp('\\b'+e(c)+'\\b','g'),k[c]);return p}('E 1E(s){C 2p=8;C 6R=0;E 1e(x,y){C 42=(x&40)+(y&40);C 6Z=(x>>16)+(y>>16)+(42>>16);F(6Z<<16)|(42&40)}E S(X,n){F(X>>>n)|(X<<(32-n))}E R(X,n){F(X>>>n)}E 6V(x,y,z){F((x&y)^((~x)&z))}E 6T(x,y,z){F((x&y)^(x&z)^(y&z))}E 6U(x){F(S(x,2)^S(x,13)^S(x,22))}E 6W(x){F(S(x,6)^S(x,11)^S(x,25))}E 6X(x){F(S(x,7)^S(x,18)^R(x,3))}E 6Y(x){F(S(x,17)^S(x,19)^R(x,10))}E 6N(m,l){C K=U 1x(aD,aC,aB,aA,az,ay,ax,aw,av,au,at,as,ar,aq,ap,ao,an,al,ak,aj,ai,ah,ag,af,ae,ad,ab,aa,a9,a8,a7,a6,a5,a4,a3,a2,a1,a0,9Z,9Y,9X,9W,9V,9U,9T,9S,9R,9Q,9P,9O,9N,9M,9L,9K,9J,9I,9H,9G,9F,9E,9D,9C,9B,9A);C 1a=U 1x(9z,9y,9x,9w,9v,9u,9t,9s);C W=U 1x(64);C a,b,c,d,e,f,g,h,i,j;C 3h,3Z;m[l>>5]|=2I<<(24-l%32);m[((l+64>>9)<<4)+15]=l;P(C i=0;i<m.Z;i+=16){a=1a[0];b=1a[1];c=1a[2];d=1a[3];e=1a[4];f=1a[5];g=1a[6];h=1a[7];P(C j=0;j<64;j++){D(j<16)W[j]=m[j+i];J W[j]=1e(1e(1e(6Y(W[j-2]),W[j-7]),6X(W[j-15])),W[j-16]);3h=1e(1e(1e(1e(h,6W(e)),6V(e,f,g)),K[j]),W[j]);3Z=1e(6U(a),6T(a,b,c));h=g;g=f;f=e;e=1e(d,3h);d=c;c=b;b=a;a=1e(3h,3Z)}1a[0]=1e(a,1a[0]);1a[1]=1e(b,1a[1]);1a[2]=1e(c,1a[2]);1a[3]=1e(d,1a[3]);1a[4]=1e(e,1a[4]);1a[5]=1e(f,1a[5]);1a[6]=1e(g,1a[6]);1a[7]=1e(h,1a[7])}F 1a}E 6M(1M){C 3Y=1x();C 6S=(1<<2p)-1;P(C i=0;i<1M.Z*2p;i+=2p){3Y[i>>5]|=(1M.1Z(i/2p)&6S)<<(24-i%32)}F 3Y}E 6P(2o){2o=2o.9r(/\\r\\n/g,"\\n");C 1Q="";P(C n=0;n<2o.Z;n++){C c=2o.1Z(n);D(c<3g){1Q+=2r.2q(c)}J D((c>5x)&&(c<9q)){1Q+=2r.2q((c>>6)|9p);1Q+=2r.2q((c&63)|3g)}J{1Q+=2r.2q((c>>12)|9o);1Q+=2r.2q(((c>>6)&63)|3g);1Q+=2r.2q((c&63)|3g)}}F 1Q}E 6O(3f){C 3X=6R?"9n":"9m";C 1M="";P(C i=0;i<3f.Z*4;i++){1M+=3X.2K((3f[i>>2]>>((3-i%4)*8+4))&6Q)+3X.2K((3f[i>>2]>>((3-i%4)*8))&6Q)}F 1M}s=6P(s);F 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d=o.1k%n,r=(o.s<0)?n-1:0;D(o.t>0)D(d==0)r=o[0]%n;J P(C i=o.t-1;i>=0;--i)r=(d*r+o[i])%n;F r}E 4I(m){C ac=m.1j();D((o.1j()&&ac)||m.1G()==0)F G.1x;C u=m.2A(),v=o.2A();C a=1I(1),b=1I(0),c=1I(0),d=1I(1);L(u.1G()!=0){L(u.1j()){u.1h(1,u);D(ac){D(!a.1j()||!b.1j()){a.2B(o,a);b.V(m,b)}a.1h(1,a)}J D(!b.1j())b.V(m,b);b.1h(1,b)}L(v.1j()){v.1h(1,v);D(ac){D(!c.1j()||!d.1j()){c.2B(o,c);d.V(m,d)}c.1h(1,c)}J D(!d.1j())d.V(m,d);d.1h(1,d)}D(u.1c(v)>=0){u.V(v,u);D(ac)a.V(c,a);b.V(d,b)}J{v.V(u,v);D(ac)c.V(a,c);d.V(b,d)}}D(v.1c(G.1w)!=0)F G.1x;D(d.1c(m)>=0)F d.2Y(m);D(d.1G()<0)d.2B(m,d);J F d;D(d.1G()<0)F d.3o(m);J F d}C 1i=[2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,9p,9o,9n,9m,9l,5D,9k,9j,9i,9h,9g,9f,9e,9d,9c,9b,9a,99,98,96,95,94,93,92,91,90,8Z,8Y,8X,8W,8V,8U,8T,8S,8R,8Q,8P,8O,8N,8M,8L,8K,8J,8I,8H,8G,8F,8E,8D,8C,8B,8A,8z,8y,8x,8w,8v,8u,8t,8s,8r,8q,8p,8o,8n,8m,8l,8k,8j,8i,8h,8g];C 5C=(1<<26)/1i[1i.Y-1];E 4E(t){C i,x=o.1H();D(x.t==1&&x[0]<=1i[1i.Y-1]){P(i=0;i<1i.Y;++i)D(x[0]==1i[i])F 1A;F 1m}D(x.1j())F 1m;i=1;L(i<1i.Y){C m=1i[i],j=i+1;L(j<1i.Y&&m<5C)m*=1i[j++];m=x.5l(m);L(i<j)D(m%1i[i++]==0)F 1m}F x.5j(t)}E 5i(t){C 2c=o.2Y(G.1w);C k=2c.2a();D(k<=0)F 1m;C r=2c.4Z(k);t=(t+1)>>1;D(t>1i.Y)t=1i.Y;C a=Q();P(C i=0;i<t;++i){a.2d(1i[i]);C y=a.27(r,o);D(y.1c(G.1w)!=0&&y.1c(2c)!=0){C j=1;L(j++<k&&y.1c(2c)!=0){y=y.5B(2,o);D(y.1c(G.1w)==0)F 1m}D(y.1c(2c)!=0)F 1m}}F 1A}G.H.3C=5A;G.H.5z=5y;G.H.5x=5w;G.H.3B=5v;G.H.1T=5u;G.H.34=5t;G.H.2B=5s;G.H.3A=5r;G.H.2b=5q;G.H.5p=5o;G.H.5n=5m;G.H.5l=5k;G.H.5j=5i;G.H.2A=5h;G.H.3z=5g;G.H.8f=5f;G.H.8e=5e;G.H.1G=5d;G.H.8d=5c;G.H.8c=5b;G.H.1S=5a;G.H.3y=58;G.H.8b=57;G.H.8a=56;G.H.88=55;G.H.87=54;G.H.2S=51;G.H.33=50;G.H.4Z=4Y;G.H.2a=4X;G.H.86=4W;G.H.4V=4U;G.H.85=4T;G.H.84=4S;G.H.82=4R;G.H.3o=4Q;G.H.2Y=4P;G.H.3n=4O;G.H.4N=4M;G.H.81=4L;G.H.80=4K;G.H.27=4J;G.H.7Z=4I;G.H.2z=4H;G.H.7Y=4G;G.H.4F=4E;E 7X(4B,4A,4y,4z){C 4D="7W";C N=U G(4D,16);C g=U G("2");C k=U G("7V",16);C 4C=U 3x();C 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+var srpPath = (function(){
+var scr=document.getElementsByTagName('script');
+return scr[scr.length-1].getAttribute("src");
+})();
diff --git a/javascript/srp.js b/javascript/srp.js
index 757f985..2a8f6e5 100644
--- a/javascript/srp.js
+++ b/javascript/srp.js
@@ -23,6 +23,7 @@ function SRP(username, password, ser, base_url)
     var server = ser;
     var that = this;
     var authenticated = false;
+    var hash_import = false;
     
     function paths(str)
     {
@@ -170,6 +171,15 @@ function SRP(username, password, ser, base_url)
 		    }
         }
     };
+    function import_hashes()
+    {
+        if(that.isdefined("SHA1") && that.isdefined("MD5")) return;
+        var scriptElt = document.createElement('script');
+        scriptElt.type = 'text/javascript';
+        var arr=srpPath.split("/");
+        scriptElt.src = arr.slice(0, arr.length-1).join("/")+"/hash.min.js";
+        document.getElementsByTagName('head')[0].appendChild(scriptElt);
+    }
     this.key = function()
     {
         if(K == null)
@@ -191,4 +201,8 @@ function SRP(username, password, ser, base_url)
     {
         alert(t);
     };
+    this.isdefined = function ( variable)
+    {
+        return (typeof(window[variable]) == "undefined")?  false: true;
+    };
 };