1 files changed, 12 insertions, 6 deletions
diff --git a/src/authAlgo.h b/src/authAlgo.h
index 3074014..1e86407 100644
--- a/src/authAlgo.h
+++ b/src/authAlgo.h
@@ -37,11 +37,15 @@
 #include "encryptedPacket.h"
 
 #ifndef NO_CRYPT
-#ifndef USE_SSL_CRYPTO
-#include <gcrypt.h>
-#else
+
+#if defined(USE_SSL_CRYPTO)
 #include <openssl/hmac.h>
+#elif defined(USE_NETTLE)
+#include <nettle/hmac.h>
+#else  // USE_GCRYPT is the default
+#include <gcrypt.h>
 #endif
+
 #endif
 #include "keyDerivation.h"
 
@@ -95,10 +99,12 @@ public:
   static const uint32_t DIGEST_LENGTH = 20;
 
 private:
-#ifndef USE_SSL_CRYPTO
-  gcry_md_hd_t handle_;
-#else
+#if defined(USE_SSL_CRYPTO)
   HMAC_CTX ctx_;
+#elif defined(USE_NETTLE)
+  struct hmac_sha1_ctx ctx_;
+#else  // USE_GCRYPT is the default
+  gcry_md_hd_t handle_;
 #endif
 
   Buffer key_;