fixed bug with hash shorter then q

browserify · Jan 12, 2015 · 438717a · 438717a
1 parent 5077b98
commit 438717a
Show file tree

Hide file tree

Showing 2 changed files with 11 additions and 5 deletions.
diff --git a/algos.js b/algos.js
@@ -33,22 +33,22 @@ exports.DSA = exports['DSA-SHA1'] = exports['DSA-SHA'] = {
   hash: 'sha1',
   id: new Buffer('', 'hex')
 };
-exports['DSA-SHA224'] = {
+exports['DSA-SHA224'] = exports['DSA-WITH-SHA224'] = {
   sign: 'dsa',
   hash: 'sha224',
   id: new Buffer('', 'hex')
 };
-exports['DSA-SHA256'] = {
+exports['DSA-SHA256'] = exports['DSA-WITH-SHA256'] = {
   sign: 'dsa',
   hash: 'sha256',
   id: new Buffer('', 'hex')
 };
-exports['DSA-SHA384'] = {
+exports['DSA-SHA384'] = exports['DSA-WITH-SHA384'] = {
   sign: 'dsa',
   hash: 'sha384',
   id: new Buffer('', 'hex')
 };
-exports['DSA-SHA512'] = {
+exports['DSA-SHA512'] = exports['DSA-WITH-SHA512'] = {
   sign: 'dsa',
   hash: 'sha512',
   id: new Buffer('', 'hex')

diff --git a/sign.js b/sign.js
@@ -122,7 +122,13 @@ function bits2int(obits, q) {
 function bits2octets (bits, q) {
   bits = bits2int(bits, q);
   bits = bits.mod(q);
-  return new Buffer(bits.toArray());
+  var out = new Buffer(bits.toArray());
+  if (out.length < q.byteLength()) {
+    var zeros = new Buffer(q.byteLength() - out.length);
+    zeros.fill(0);
+    out = Buffer.concat([zeros, out]);
+  }
+  return out;
 }
 module.exports.makeKey = makeKey;
 function makeKey(q, kv, algo, crypto) {