From af7cdb1096dd12f0ca06d78f5e5a3f5e9f57b3a8 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Fri, 4 Mar 2016 17:08:30 +0100
Subject: BinaryCacheStore: Remove publicKeyFile argument

The public key can be derived from the secret key, so there's no need
for the user to supply it separately.
---
 src/libstore/crypto.cc | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'src/libstore/crypto.cc')

diff --git a/src/libstore/crypto.cc b/src/libstore/crypto.cc
index c1b57e51d9b4..53e94e1f5997 100644
--- a/src/libstore/crypto.cc
+++ b/src/libstore/crypto.cc
@@ -55,6 +55,17 @@ std::string SecretKey::signDetached(const std::string & data) const
 #endif
 }
 
+PublicKey SecretKey::toPublicKey() const
+{
+#if HAVE_SODIUM
+    unsigned char pk[crypto_sign_PUBLICKEYBYTES];
+    crypto_sign_ed25519_sk_to_pk(pk, (unsigned char *) key.data());
+    return PublicKey(name, std::string((char *) pk, crypto_sign_PUBLICKEYBYTES));
+#else
+    noSodium();
+#endif
+}
+
 PublicKey::PublicKey(const string & s)
     : Key(s)
 {
-- 
cgit 1.4.1