From b18f533cf06188607d444daa50974a6fc836f82d Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Wed, 23 Dec 2015 09:16:26 -0500
Subject: Always test both ed25519 backends.

Part of #16794
---
 src/common/crypto_ed25519.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

(limited to 'src/common/crypto_ed25519.c')

diff --git a/src/common/crypto_ed25519.c b/src/common/crypto_ed25519.c
index 41ec486f0a..9df665f66a 100644
--- a/src/common/crypto_ed25519.c
+++ b/src/common/crypto_ed25519.c
@@ -96,6 +96,28 @@ get_ed_impl(void)
   return ed25519_impl;
 }
 
+#ifdef TOR_UNIT_TESTS
+static const ed25519_impl_t *saved_ed25519_impl = NULL;
+void
+crypto_ed25519_testing_force_impl(const char *name)
+{
+  tor_assert(saved_ed25519_impl == NULL);
+  saved_ed25519_impl = ed25519_impl;
+  if (! strcmp(name, "donna")) {
+    ed25519_impl = &impl_donna;
+  } else {
+    tor_assert(!strcmp(name, "ref10"));
+    ed25519_impl = &impl_ref10;
+  }
+}
+void
+crypto_ed25519_testing_restore_impl(void)
+{
+  ed25519_impl = saved_ed25519_impl;
+  saved_ed25519_impl = NULL;
+}
+#endif
+
 /**
  * Initialize a new ed25519 secret key in <b>seckey_out</b>.  If
  * <b>extra_strong</b>, take the RNG inputs directly from the operating
-- 
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