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-rw-r--r--src/net.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/src/net.h b/src/net.h
index 403653e8c8..019a3f7ee3 100644
--- a/src/net.h
+++ b/src/net.h
@@ -9,6 +9,8 @@
#include "amount.h"
#include "bloom.h"
#include "compat.h"
+#include "crypto/common.h"
+#include "crypto/sha256.h"
#include "limitedmap.h"
#include "netbase.h"
#include "protocol.h"
@@ -362,6 +364,8 @@ public:
CBloomFilter* pfilter;
int nRefCount;
NodeId id;
+
+ std::vector<unsigned char> vchKeyedNetGroup;
protected:
// Denial-of-service detection/prevention
@@ -450,6 +454,22 @@ private:
CNode(const CNode&);
void operator=(const CNode&);
+ void CalculateKeyedNetGroup() {
+ static std::vector<unsigned char> vchSecretKey;
+ if (vchSecretKey.empty()) {
+ vchSecretKey.resize(32, 0);
+ GetRandBytes(vchSecretKey.data(), vchSecretKey.size());
+ }
+
+ std::vector<unsigned char> vchNetGroup(this->addr.GetGroup());
+
+ CSHA256 hash;
+ hash.Write(begin_ptr(vchNetGroup), vchNetGroup.size());
+ hash.Write(begin_ptr(vchSecretKey), vchSecretKey.size());
+
+ vchKeyedNetGroup.resize(32, 0);
+ hash.Finalize(begin_ptr(vchKeyedNetGroup));
+ }
public:
NodeId GetId() const {