--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/includes/clientside/static/diffiehellman.js	Wed Feb 20 14:38:39 2008 -0500
@@ -0,0 +1,44 @@
+/*
+ * The Diffie-Hellman key exchange protocol.
+ */
+
+// Our prime number as a base for operations.
+var dh_prime = '82818079787776757473727170696867666564636261605958575655545352515049484746454443424140393837363534333231302928272625242322212019181716151413121110987654321';
+
+// g, a primitive root used as an exponent
+// (2 and 5 are acceptable, but BigInt is faster with odd numbers)
+var dh_g = '5';
+
+/**
+ * Generates a Diffie-Hellman private key
+ * @return string(BigInt)
+ */
+
+function dh_gen_private()
+{
+  return EnanoMath.RandomInt(256);
+}
+
+/**
+ * Calculates the public key from the private key
+ * @param string(BigInt)
+ * @return string(BigInt)
+ */
+
+function dh_gen_public(b)
+{
+  return EnanoMath.PowMod(dh_g, b, dh_prime);
+}
+
+/**
+ * Calculates the shared secret.
+ * @param string(BigInt) Our private key
+ * @param string(BigInt) Remote party's public key
+ * @return string(BigInt)
+ */
+
+function dh_gen_shared_secret(b, A)
+{
+  return EnanoMath.PowMod(A, b, dh_prime);
+}
+