elliptic curve diffie hellman

2010-12-09 14:16:11 -08:00
parent f28119699c
commit 54f531d8c2
2 changed files with 29 additions and 25 deletions
--- a/core/ecc.js
+++ b/core/ecc.js
@@ -341,6 +341,10 @@ sjcl.ecc.elGamal.publicKey.prototype = {
 sjcl.ecc.elGamal.secretKey.prototype = {
  unkem: function(tag) {
    return sjcl.hash.sha256.hash(this._curve.fromBits(tag).mult(this._exponent).toBits());
+  },
+
+  dh: function(pk) {
+    return sjcl.hash.sha256.hash(pk._point.mult(this._exponent).toBits());
  }
 };