From fb83a79b21786d9aaa7e2b50dcdba343d024956f Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Sat, 13 Jul 2013 12:56:52 +0200
Subject: [PATCH] Fix minor backward incompatibility

The key refactor changed the way unencrypted private keys with compressed
public key are stored in the wallet. Apparently older versions relied on
this to verify the correctness of stored keys.

Note that earlier pre-release versions do risk creating wallets that can
not be opened by 0.8.3 and earlier.
---
 src/key.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/key.cpp b/src/key.cpp
index f73708199..1ab4c62eb 100644
--- a/src/key.cpp
+++ b/src/key.cpp
@@ -155,7 +155,8 @@ public:
         BN_clear_free(&bn);
     }
 
-    void GetPrivKey(CPrivKey &privkey) {
+    void GetPrivKey(CPrivKey &privkey, bool fCompressed) {
+        EC_KEY_set_conv_form(pkey, fCompressed ? POINT_CONVERSION_COMPRESSED : POINT_CONVERSION_UNCOMPRESSED);
         int nSize = i2d_ECPrivateKey(pkey, NULL);
         assert(nSize);
         privkey.resize(nSize);
@@ -304,7 +305,7 @@ CPrivKey CKey::GetPrivKey() const {
     CECKey key;
     key.SetSecretBytes(vch);
     CPrivKey privkey;
-    key.GetPrivKey(privkey);
+    key.GetPrivKey(privkey, fCompressed);
     return privkey;
 }