Benchmark a random equihash input.

src/zcbenchmarks.cpp

@@ -8,6 +8,8 @@
 #include "crypto/equihash.h"
 #include "chainparams.h"
 #include "pow.h"
+#include "sodium.h"
+#include "streams.h"
 
 #include "zcbenchmarks.h"
 
@@ -101,11 +103,22 @@ double benchmark_verify_joinsplit(const CPourTx &joinsplit)
 
 double benchmark_solve_equihash()
 {
-    const char *testing = "testing";
+    CBlock pblock;
+    CEquihashInput I{pblock};
+    CDataStream ss(SER_NETWORK, PROTOCOL_VERSION);
+    ss << I;
+
     Equihash eh {Params(CBaseChainParams::MAIN).EquihashN(), Params(CBaseChainParams::MAIN).EquihashK()};
     crypto_generichash_blake2b_state eh_state;
     eh.InitialiseState(eh_state);
-    crypto_generichash_blake2b_update(&eh_state, (const unsigned char*)testing, strlen(testing));
+    crypto_generichash_blake2b_update(&eh_state, (unsigned char*)&ss[0], ss.size());
+
+    uint256 nonce;
+    randombytes_buf(nonce.begin(), 32);
+    crypto_generichash_blake2b_update(&eh_state,
+                                    nonce.begin(),
+                                    nonce.size());
+
     timer_start();
     eh.BasicSolve(eh_state);
     return timer_stop();