enforce use of tlsv1.2

Author: doersf

README.md

@@ -14,10 +14,11 @@ And then execute:
 
 Or install it yourself as:
 
-    $ gem install block_io -v=1.0.5
+    $ gem install block_io -v=1.0.7
 
 ## Changelog
 
+*02/06/17*: Force use of TLSv1.2.  
 *11/04/14*: Fix issue with nil parameters in an API call.  
 *11/03/14*: Reduce dependence on OpenSSL. PBKDF2 function is now Ruby-based. Should work well with Heroku's libraries.  
 *10/18/14*: Now using deterministic signatures (RFC6979), and BIP62 to hinder transaction malleability.  

lib/block_io.rb

@@ -106,7 +106,7 @@ def self.api_call(endpoint)
     @conn_pool.with do |hc|
       # prevent initiation of HTTPClients every time we make this call, use a connection_pool
 
-      hc.ssl_config.ssl_version = :TLSv1
+      hc.ssl_config.ssl_version = :TLSv1_2
       response = hc.post("#{@base_url.gsub('API_CALL',endpoint[0]).gsub('VERSION', 'v'+@version.to_s) + @api_key}", endpoint[1])
 
       begin

lib/block_io/version.rb

@@ -1,3 +1,3 @@
 module BlockIo
-  VERSION = "1.0.5"
+  VERSION = "1.0.7"
 end