From 4e78e6ea5608edddda8929f3b43a978e89f927ba Mon Sep 17 00:00:00 2001
From: Jack Lloyd <lloyd@randombit.net>
Date: Tue, 19 Jul 2016 14:57:12 -0400
Subject: Add RDRAND_RNG

For those that are willing to trust uninspectible hardware. :)

Changes RDRAND entropy source to call RDRAND_RNG

Add --rdrand flag to rng cmdlet
---
 src/cli/utils.cpp | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

(limited to 'src/cli')

diff --git a/src/cli/utils.cpp b/src/cli/utils.cpp
index 76e445126..b0d364581 100644
--- a/src/cli/utils.cpp
+++ b/src/cli/utils.cpp
@@ -20,6 +20,10 @@
   #include <botan/system_rng.h>
 #endif
 
+#if defined(BOTAN_HAS_RDRAND_RNG)
+  #include <botan/rdrand_rng.h>
+#endif
+
 #if defined(BOTAN_HAS_HTTP_UTIL)
   #include <botan/http_util.h>
 #endif
@@ -149,7 +153,7 @@ BOTAN_REGISTER_COMMAND("hash", Hash);
 class RNG final : public Command
    {
    public:
-      RNG() : Command("rng --system *bytes") {}
+      RNG() : Command("rng --system --rdrand *bytes") {}
 
       void go() override
          {
@@ -162,6 +166,15 @@ class RNG final : public Command
 #else
             error_output() << "system_rng disabled in build\n";
             return;
+#endif
+            }
+         else if(flag_set("rdrand"))
+            {
+#if defined(BOTAN_HAS_RDRAND_RNG)
+            rng.reset(new Botan::RDRAND_RNG);
+#else
+            error_output() << "rdrand_rng disabled in build\n";
+            return;
 #endif
             }
          else
-- 
cgit v1.2.3