From 8febbc657bb2b99934ef3c162d49052ab48e5a84 Mon Sep 17 00:00:00 2001
From: Tony Mack <tmack@cs.princeton.edu>
Date: Wed, 14 Oct 2009 00:23:42 +0000
Subject: [PATCH] added compute_hash() method

---
 sfa/trust/certificate.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sfa/trust/certificate.py b/sfa/trust/certificate.py
index 5a322430..54d98eb1 100644
--- a/sfa/trust/certificate.py
+++ b/sfa/trust/certificate.py
@@ -203,6 +203,9 @@ class Keypair:
       k.verify_update(data)
       return M2Crypto.m2.verify_final(k.ctx, base64.b64decode(sig), k.pkey)
 
+   def compute_hash(self, value):
+      return self.sign_string(str(value))      
+
 ##
 # The certificate class implements a general purpose X509 certificate, making
 # use of the appropriate pyOpenSSL or M2Crypto abstractions. It also adds
-- 
2.43.0