removed mods directory from the ATutor codebase

[atutor.git] / mods / ldap / rsa / rsa.js

diff --git a/mods/ldap/rsa/rsa.js b/mods/ldap/rsa/rsa.js
deleted file mode 100755 (executable)
index 10a15b5..0000000
--- a/mods/ldap/rsa/rsa.js
+++ /dev/null
@@ -1,96 +0,0 @@
-// Depends on jsbn.js and rng.js
-
-// convert a (hex) string to a bignum object
-function parseBigInt(str,r) {
-  return new BigInteger(str,r);
-}
-
-function linebrk(s,n) {
-  var ret = "";
-  var i = 0;
-  while(i + n < s.length) {
-    ret += s.substring(i,i+n) + "\n";
-    i += n;
-  }
-  return ret + s.substring(i,s.length);
-}
-
-function byte2Hex(b) {
-  if(b < 0x10)
-    return "0" + b.toString(16);
-  else
-    return b.toString(16);
-}
-
-// PKCS#1 (type 2, random) pad input string s to n bytes, and return a bigint
-function pkcs1pad2(s,n) {
-  if(n < s.length + 11) {
-  alert("Message too long for RSA");
-    return null;
-  }
-  var ba = new Array();
-  var i = s.length - 1;
-  while(i >= 0 && n > 0) ba[--n] = s.charCodeAt(i--);
-  ba[--n] = 0;
-  var rng = new SecureRandom();
-  var x = new Array();
-  while(n > 2) { // random non-zero pad
-    x[0] = 0;
-    while(x[0] == 0) rng.nextBytes(x);
-    ba[--n] = x[0];
-  }
-  ba[--n] = 2;
-  ba[--n] = 0;
-  return new BigInteger(ba);
-}
-
-// "empty" RSA key constructor
-function RSAKey() {
-  this.n = null;
-  this.e = 0;
-  this.d = null;
-  this.p = null;
-  this.q = null;
-  this.dmp1 = null;
-  this.dmq1 = null;
-  this.coeff = null;
-}
-
-// Set the public key fields N and e from hex strings
-function RSASetPublic(N,E) {
-  if(N != null && E != null && N.length > 0 && E.length > 0) {
-    this.n = parseBigInt(N,16);
-    this.e = parseInt(E,16);
-  }
-  else
-    alert("Invalid RSA public key");
-}
-
-// Perform raw public operation on "x": return x^e (mod n)
-function RSADoPublic(x) {
-  return x.modPowInt(this.e, this.n);
-}
-
-// Return the PKCS#1 RSA encryption of "text" as an even-length hex string
-function RSAEncrypt(text) {
-  var m = pkcs1pad2(text,(this.n.bitLength()+7)>>3);
-  if(m == null) return null;
-  var c = this.doPublic(m);
-  if(c == null) return null;
-  var h = c.toString(16);
-  if((h.length & 1) == 0) return h; else return "0" + h;
-}
-
-// Return the PKCS#1 RSA encryption of "text" as a Base64-encoded string
-//function RSAEncryptB64(text) {
-//  var h = this.encrypt(text);
-//  if(h) return hex2b64(h); else return null;
-//}
-
-// protected
-RSAKey.prototype.doPublic = RSADoPublic;
-
-// public
-RSAKey.prototype.setPublic = RSASetPublic;
-RSAKey.prototype.encrypt = RSAEncrypt;
-//RSAKey.prototype.encrypt_b64 = RSAEncryptB64;