From cc5d94ee5f64203311f39e8bf924d551489627f8 Mon Sep 17 00:00:00 2001
From: Jeff Becker <jeff@i2p.rocks>
Date: Fri, 25 Aug 2017 10:37:46 -0400
Subject: [PATCH] try reverting to old key derivation function

---
 contrib/backends/srndv2/src/srnd/nacl_crypto.go | 7 +++++++
 contrib/backends/srndv2/src/srnd/util.go        | 2 ++
 2 files changed, 9 insertions(+)

diff --git a/contrib/backends/srndv2/src/srnd/nacl_crypto.go b/contrib/backends/srndv2/src/srnd/nacl_crypto.go
index f90ddb4..96462e4 100644
--- a/contrib/backends/srndv2/src/srnd/nacl_crypto.go
+++ b/contrib/backends/srndv2/src/srnd/nacl_crypto.go
@@ -21,4 +21,11 @@ func naclCryptoSignDetached(hash, sk []byte) []byte {
 	return nacl.CryptoSignDetached(hash, sk)
 }
 
+func seedToKeyPair(seed []byte) (pk, sk []byte) {
+	kp := nacl.LoadSignKey(seed)
+	defer kp.Free()
+	pk, sk = kp.Public(), kp.Secret()
+	return
+}
+
 var naclScalarBaseMult = curve25519.ScalarBaseMult
diff --git a/contrib/backends/srndv2/src/srnd/util.go b/contrib/backends/srndv2/src/srnd/util.go
index 5d43a87..4b85190 100644
--- a/contrib/backends/srndv2/src/srnd/util.go
+++ b/contrib/backends/srndv2/src/srnd/util.go
@@ -411,6 +411,7 @@ func cryptoSignFucky(h, sk []byte) string {
 	return hexify(sig)
 }
 
+/*
 // convert seed to secret key
 func seedToKeyPair(seed []byte) (pub ed25519.PublicKey, full ed25519.PrivateKey) {
 	pub = make(ed25519.PublicKey, ed25519.PublicKeySize)
@@ -430,6 +431,7 @@ func seedToKeyPair(seed []byte) (pub ed25519.PublicKey, full ed25519.PrivateKey)
 	log.Println("pk=", hexify(pub[:]))
 	return
 }
+*/
 
 func cryptoSignProper(h, sk []byte) string {
 	// convert key