From e94b9471c0bc30cd6a1a5bf5b6b22b746d242e31 Mon Sep 17 00:00:00 2001
From: Azul <azul@leap.se>
Date: Fri, 9 May 2014 16:11:20 +0200
Subject: calculate cert fingerprints to store for leap_mx

stelfox.net/blog/2014/04/calculating-rsa-key-fingerprints-in-ruby/
---
 app/models/client_certificate.rb | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/app/models/client_certificate.rb b/app/models/client_certificate.rb
index 76b07a2..63de9e1 100644
--- a/app/models/client_certificate.rb
+++ b/app/models/client_certificate.rb
@@ -43,8 +43,16 @@ class ClientCertificate
     self.key.to_pem + self.cert.to_pem
   end
 
+  def fingerprint
+    OpenSSL::Digest::SHA1.hexdigest(openssl_cert.to_der).scan(/../).join(':')
+  end
+
   private
 
+  def openssl_cert
+    cert.openssl_body
+  end
+
   def self.root_ca
     @root_ca ||= begin
                    crt = File.read(APP_CONFIG[:client_ca_cert])
-- 
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