From 146958316108e27bdf9f30562f33f4e7d3aaabb7 Mon Sep 17 00:00:00 2001
From: anchaj <anchaj@users.noreply.github.com>
Date: Fri, 30 Jul 2021 09:51:03 +0200
Subject: [PATCH] Update makeairdropfile to be comatible with verifymessage.

---
 src/wallet/rpcdump.cpp | 33 +++++++--------------------------
 1 file changed, 7 insertions(+), 26 deletions(-)

diff --git a/src/wallet/rpcdump.cpp b/src/wallet/rpcdump.cpp
index 5f305fa8860b9..c00423ebeb6a4 100644
--- a/src/wallet/rpcdump.cpp
+++ b/src/wallet/rpcdump.cpp
@@ -737,28 +737,6 @@ UniValue bip38decrypt(const UniValue& params, bool fHelp)
     return result;
 }
 
-
-bool signCompactMessage(const CKey & key, const unsigned char * message, size_t length, std::vector<unsigned char>& vchSig)
-{
-    if (! key.IsValid())
-        return false;
-    vchSig.resize(65);
-    int rec = -1;
-    RFC6979_HMAC_SHA256 prng(key.begin(), 32, message, length);
-    do {
-        uint256 nonce;
-        prng.Generate((unsigned char*)&nonce, 32);
-        int ret = secp256k1_ecdsa_sign_compact(message, length, &vchSig[1], key.begin(), (unsigned char*)&nonce, &rec);
-        nonce = 0;
-        if (ret)
-            break;
-    } while (true);
-    assert(rec != -1);
-    vchSig[0] = 27 + rec + (key.IsCompressed() ? 4 : 0);
-    return true;
-}
-
-
 UniValue makeairdropfile(const UniValue& params, bool fHelp)
 {
     if (fHelp || params.size() != 3)
@@ -816,15 +794,18 @@ UniValue makeairdropfile(const UniValue& params, bool fHelp)
     for (std::vector<std::pair<int64_t, CKeyID> >::const_iterator it = vKeyBirth.begin(); it != vKeyBirth.end(); it++) {
         const CKeyID& keyid = it->second;
         std::string strAddr = EncodeDestination(CTxDestination(keyid));
+        std::string strDelimiter = "-";
 
         CKey key;
         if (pwalletMain->GetKey(keyid, key)) {
-            CDataStream ss(SER_GETHASH, 0);
+            CHashWriter ss(SER_GETHASH, 0);
+            ss << strMessageMagic;
+            ss << bscAddress;
+            ss << strDelimiter;
             ss << strAddr;
 
             std::vector<unsigned char> vchSig;
-            //if(key.SignCompact(Hash(ss.begin(), ss.end()), vchSig)) {
-            if(signCompactMessage(key, (const unsigned char *)(keyid.begin()), keyid.size(), vchSig)) {
+            if(key.SignCompact(ss.GetHash(), vchSig)) {
                 const std::string signature = EncodeBase64(&vchSig[0], vchSig.size());
                 if(needComma) {
                     file << ",";
@@ -832,7 +813,7 @@ UniValue makeairdropfile(const UniValue& params, bool fHelp)
                 needComma = true;
                 file << "\n";
                 file << indent << indent << "{\n";
-                file << indent << indent << indent << strprintf("\"phrAddress\": \"%s-%s\",\n", bscAddress, strAddr);
+                file << indent << indent << indent << strprintf("\"phrAddress\": \"%s\",\n", strAddr);
                 file << indent << indent << indent << strprintf("\"signature\": \"%s\"\n", signature);
                 file << indent << indent << "}";
             }