diff --git a/src/test/DoS_tests.cpp b/src/test/DoS_tests.cpp
index f44c20ba1..0c71152dc 100644
--- a/src/test/DoS_tests.cpp
+++ b/src/test/DoS_tests.cpp
@@ -129,7 +129,7 @@ BOOST_AUTO_TEST_CASE(DoS_bantime)
 CTransactionRef RandomOrphan()
 {
     std::map<uint256, COrphanTx>::iterator it;
-    it = mapOrphanTransactions.lower_bound(insecure_rand256());
+    it = mapOrphanTransactions.lower_bound(InsecureRand256());
     if (it == mapOrphanTransactions.end())
         it = mapOrphanTransactions.begin();
     return it->second.tx;
@@ -148,7 +148,7 @@ BOOST_AUTO_TEST_CASE(DoS_mapOrphans)
         CMutableTransaction tx;
         tx.vin.resize(1);
         tx.vin[0].prevout.n = 0;
-        tx.vin[0].prevout.hash = insecure_rand256();
+        tx.vin[0].prevout.hash = InsecureRand256();
         tx.vin[0].scriptSig << OP_1;
         tx.vout.resize(1);
         tx.vout[0].nValue = 1*CENT;
diff --git a/src/test/blockencodings_tests.cpp b/src/test/blockencodings_tests.cpp
index 4789152b5..59a052f3f 100644
--- a/src/test/blockencodings_tests.cpp
+++ b/src/test/blockencodings_tests.cpp
@@ -30,16 +30,16 @@ static CBlock BuildBlockTestCase() {
     block.vtx.resize(3);
     block.vtx[0] = MakeTransactionRef(tx);
     block.nVersion = 1;
-    block.hashPrevBlock = insecure_rand256();
+    block.hashPrevBlock = InsecureRand256();
     block.nBits = 0x207fffff;
 
-    tx.vin[0].prevout.hash = insecure_rand256();
+    tx.vin[0].prevout.hash = InsecureRand256();
     tx.vin[0].prevout.n = 0;
     block.vtx[1] = MakeTransactionRef(tx);
 
     tx.vin.resize(10);
     for (size_t i = 0; i < tx.vin.size(); i++) {
-        tx.vin[i].prevout.hash = insecure_rand256();
+        tx.vin[i].prevout.hash = InsecureRand256();
         tx.vin[i].prevout.n = 0;
     }
     block.vtx[2] = MakeTransactionRef(tx);
@@ -283,7 +283,7 @@ BOOST_AUTO_TEST_CASE(EmptyBlockRoundTripTest)
     block.vtx.resize(1);
     block.vtx[0] = MakeTransactionRef(std::move(coinbase));
     block.nVersion = 1;
-    block.hashPrevBlock = insecure_rand256();
+    block.hashPrevBlock = InsecureRand256();
     block.nBits = 0x207fffff;
 
     bool mutated;
@@ -316,7 +316,7 @@ BOOST_AUTO_TEST_CASE(EmptyBlockRoundTripTest)
 
 BOOST_AUTO_TEST_CASE(TransactionsRequestSerializationTest) {
     BlockTransactionsRequest req1;
-    req1.blockhash = insecure_rand256();
+    req1.blockhash = InsecureRand256();
     req1.indexes.resize(4);
     req1.indexes[0] = 0;
     req1.indexes[1] = 1;
diff --git a/src/test/bloom_tests.cpp b/src/test/bloom_tests.cpp
index 5f3b21ca9..29bc5dd12 100644
--- a/src/test/bloom_tests.cpp
+++ b/src/test/bloom_tests.cpp
@@ -463,7 +463,7 @@ BOOST_AUTO_TEST_CASE(merkle_block_4_test_update_none)
 
 static std::vector<unsigned char> RandomData()
 {
-    uint256 r = insecure_rand256();
+    uint256 r = InsecureRand256();
     return std::vector<unsigned char>(r.begin(), r.end());
 }
 
diff --git a/src/test/checkqueue_tests.cpp b/src/test/checkqueue_tests.cpp
index 2e7a4d1a5..36b8768cd 100644
--- a/src/test/checkqueue_tests.cpp
+++ b/src/test/checkqueue_tests.cpp
@@ -160,7 +160,7 @@ void Correct_Queue_range(std::vector<size_t> range)
         FakeCheckCheckCompletion::n_calls = 0;
         CCheckQueueControl<FakeCheckCheckCompletion> control(small_queue.get());
         while (total) {
-            vChecks.resize(std::min(total, (size_t) insecure_randrange(10)));
+            vChecks.resize(std::min(total, (size_t) InsecureRandRange(10)));
             total -= vChecks.size();
             control.Add(vChecks);
         }
@@ -204,7 +204,7 @@ BOOST_AUTO_TEST_CASE(test_CheckQueue_Correct_Random)
 {
     std::vector<size_t> range;
     range.reserve(100000/1000);
-    for (size_t i = 2; i < 100000; i += std::max((size_t)1, (size_t)insecure_randrange(std::min((size_t)1000, ((size_t)100000) - i))))
+    for (size_t i = 2; i < 100000; i += std::max((size_t)1, (size_t)InsecureRandRange(std::min((size_t)1000, ((size_t)100000) - i))))
         range.push_back(i);
     Correct_Queue_range(range);
 }
@@ -224,7 +224,7 @@ BOOST_AUTO_TEST_CASE(test_CheckQueue_Catches_Failure)
         CCheckQueueControl<FailingCheck> control(fail_queue.get());
         size_t remaining = i;
         while (remaining) {
-            size_t r = insecure_randrange(10);
+            size_t r = InsecureRandRange(10);
 
             std::vector<FailingCheck> vChecks;
             vChecks.reserve(r);
@@ -286,7 +286,7 @@ BOOST_AUTO_TEST_CASE(test_CheckQueue_UniqueCheck)
     {
         CCheckQueueControl<UniqueCheck> control(queue.get());
         while (total) {
-            size_t r = insecure_randrange(10);
+            size_t r = InsecureRandRange(10);
             std::vector<UniqueCheck> vChecks;
             for (size_t k = 0; k < r && total; k++)
                 vChecks.emplace_back(--total);
@@ -320,7 +320,7 @@ BOOST_AUTO_TEST_CASE(test_CheckQueue_Memory)
         {
             CCheckQueueControl<MemoryCheck> control(queue.get());
             while (total) {
-                size_t r = insecure_randrange(10);
+                size_t r = InsecureRandRange(10);
                 std::vector<MemoryCheck> vChecks;
                 for (size_t k = 0; k < r && total; k++) {
                     total--;
diff --git a/src/test/coins_tests.cpp b/src/test/coins_tests.cpp
index aaf665403..f480b3c9f 100644
--- a/src/test/coins_tests.cpp
+++ b/src/test/coins_tests.cpp
@@ -34,7 +34,7 @@ public:
             return false;
         }
         coins = it->second;
-        if (coins.IsPruned() && insecure_randbool() == 0) {
+        if (coins.IsPruned() && InsecureRandBool() == 0) {
             // Randomly return false in case of an empty entry.
             return false;
         }
@@ -55,7 +55,7 @@ public:
             if (it->second.flags & CCoinsCacheEntry::DIRTY) {
                 // Same optimization used in CCoinsViewDB is to only write dirty entries.
                 map_[it->first] = it->second.coins;
-                if (it->second.coins.IsPruned() && insecure_randrange(3) == 0) {
+                if (it->second.coins.IsPruned() && InsecureRandRange(3) == 0) {
                     // Randomly delete empty entries on write.
                     map_.erase(it->first);
                 }
@@ -125,25 +125,25 @@ BOOST_AUTO_TEST_CASE(coins_cache_simulation_test)
     std::vector<uint256> txids;
     txids.resize(NUM_SIMULATION_ITERATIONS / 8);
     for (unsigned int i = 0; i < txids.size(); i++) {
-        txids[i] = insecure_rand256();
+        txids[i] = InsecureRand256();
     }
 
     for (unsigned int i = 0; i < NUM_SIMULATION_ITERATIONS; i++) {
         // Do a random modification.
         {
-            uint256 txid = txids[insecure_randrange(500) % txids.size()]; // txid we're going to modify in this iteration.
+            uint256 txid = txids[InsecureRandRange(500) % txids.size()]; // txid we're going to modify in this iteration.
             CCoins& coins = result[txid];
             CCoinsModifier entry = stack.back()->ModifyCoins(txid);
             BOOST_CHECK(coins == *entry);
-            if (insecure_randrange(5) == 0 || coins.IsPruned()) {
+            if (InsecureRandRange(5) == 0 || coins.IsPruned()) {
                 if (coins.IsPruned()) {
                     added_an_entry = true;
                 } else {
                     updated_an_entry = true;
                 }
-                coins.nVersion = insecure_rand();
+                coins.nVersion = InsecureRand32();
                 coins.vout.resize(1);
-                coins.vout[0].nValue = insecure_rand();
+                coins.vout[0].nValue = InsecureRand32();
                 *entry = coins;
             } else {
                 coins.Clear();
@@ -153,7 +153,7 @@ BOOST_AUTO_TEST_CASE(coins_cache_simulation_test)
         }
 
         // Once every 1000 iterations and at the end, verify the full cache.
-        if (insecure_randrange(1000) == 1 || i == NUM_SIMULATION_ITERATIONS - 1) {
+        if (InsecureRandRange(1000) == 1 || i == NUM_SIMULATION_ITERATIONS - 1) {
             for (std::map<uint256, CCoins>::iterator it = result.begin(); it != result.end(); it++) {
                 const CCoins* coins = stack.back()->AccessCoins(it->first);
                 if (coins) {
@@ -169,22 +169,22 @@ BOOST_AUTO_TEST_CASE(coins_cache_simulation_test)
             }
         }
 
-        if (insecure_randrange(100) == 0) {
+        if (InsecureRandRange(100) == 0) {
             // Every 100 iterations, flush an intermediate cache
-            if (stack.size() > 1 && insecure_randbool() == 0) {
-                unsigned int flushIndex = insecure_randrange(stack.size() - 1);
+            if (stack.size() > 1 && InsecureRandBool() == 0) {
+                unsigned int flushIndex = InsecureRandRange(stack.size() - 1);
                 stack[flushIndex]->Flush();
             }
         }
-        if (insecure_randrange(100) == 0) {
+        if (InsecureRandRange(100) == 0) {
             // Every 100 iterations, change the cache stack.
-            if (stack.size() > 0 && insecure_randbool() == 0) {
+            if (stack.size() > 0 && InsecureRandBool() == 0) {
                 //Remove the top cache
                 stack.back()->Flush();
                 delete stack.back();
                 stack.pop_back();
             }
-            if (stack.size() == 0 || (stack.size() < 4 && insecure_randbool())) {
+            if (stack.size() == 0 || (stack.size() < 4 && InsecureRandBool())) {
                 //Add a new cache
                 CCoinsView* tip = &base;
                 if (stack.size() > 0) {
@@ -222,7 +222,7 @@ std::map<uint256, TxData> alltxs;
 
 TxData &FindRandomFrom(const std::set<uint256> &txidset) {
     assert(txidset.size());
-    std::set<uint256>::iterator txIt = txidset.lower_bound(insecure_rand256());
+    std::set<uint256>::iterator txIt = txidset.lower_bound(InsecureRand256());
     if (txIt == txidset.end()) {
         txIt = txidset.begin();
     }
@@ -255,7 +255,7 @@ BOOST_AUTO_TEST_CASE(updatecoins_simulation_test)
     std::set<uint256> utxoset;
 
     for (unsigned int i = 0; i < NUM_SIMULATION_ITERATIONS; i++) {
-        uint32_t randiter = insecure_rand();
+        uint32_t randiter = InsecureRand32();
 
         // 19/20 txs add a new transaction
         if (randiter % 20 < 19) {
@@ -263,13 +263,13 @@ BOOST_AUTO_TEST_CASE(updatecoins_simulation_test)
             tx.vin.resize(1);
             tx.vout.resize(1);
             tx.vout[0].nValue = i; //Keep txs unique unless intended to duplicate
-            unsigned int height = insecure_rand();
+            unsigned int height = InsecureRand32();
             CCoins oldcoins;
 
             // 2/20 times create a new coinbase
             if (randiter % 20 < 2 || coinbaseids.size() < 10) {
                 // 1/10 of those times create a duplicate coinbase
-                if (insecure_randrange(10) == 0 && coinbaseids.size()) {
+                if (InsecureRandRange(10) == 0 && coinbaseids.size()) {
                     TxData &txd = FindRandomFrom(coinbaseids);
                     // Reuse the exact same coinbase
                     tx = std::get<0>(txd);
@@ -384,7 +384,7 @@ BOOST_AUTO_TEST_CASE(updatecoins_simulation_test)
         }
 
         // Once every 1000 iterations and at the end, verify the full cache.
-        if (insecure_randrange(1000) == 1 || i == NUM_SIMULATION_ITERATIONS - 1) {
+        if (InsecureRandRange(1000) == 1 || i == NUM_SIMULATION_ITERATIONS - 1) {
             for (std::map<uint256, CCoins>::iterator it = result.begin(); it != result.end(); it++) {
                 const CCoins* coins = stack.back()->AccessCoins(it->first);
                 if (coins) {
@@ -395,21 +395,21 @@ BOOST_AUTO_TEST_CASE(updatecoins_simulation_test)
             }
         }
 
-        if (insecure_randrange(100) == 0) {
+        if (InsecureRandRange(100) == 0) {
             // Every 100 iterations, flush an intermediate cache
-            if (stack.size() > 1 && insecure_randbool() == 0) {
-                unsigned int flushIndex = insecure_randrange(stack.size() - 1);
+            if (stack.size() > 1 && InsecureRandBool() == 0) {
+                unsigned int flushIndex = InsecureRandRange(stack.size() - 1);
                 stack[flushIndex]->Flush();
             }
         }
-        if (insecure_randrange(100) == 0) {
+        if (InsecureRandRange(100) == 0) {
             // Every 100 iterations, change the cache stack.
-            if (stack.size() > 0 && insecure_randbool() == 0) {
+            if (stack.size() > 0 && InsecureRandBool() == 0) {
                 stack.back()->Flush();
                 delete stack.back();
                 stack.pop_back();
             }
-            if (stack.size() == 0 || (stack.size() < 4 && insecure_randbool())) {
+            if (stack.size() == 0 || (stack.size() < 4 && InsecureRandBool())) {
                 CCoinsView* tip = &base;
                 if (stack.size() > 0) {
                     tip = stack.back();
diff --git a/src/test/crypto_tests.cpp b/src/test/crypto_tests.cpp
index ab3e6fc1f..a4f0e17c9 100644
--- a/src/test/crypto_tests.cpp
+++ b/src/test/crypto_tests.cpp
@@ -38,7 +38,7 @@ void TestVector(const Hasher &h, const In &in, const Out &out) {
         Hasher hasher(h);
         size_t pos = 0;
         while (pos < in.size()) {
-            size_t len = insecure_randrange((in.size() - pos + 1) / 2 + 1);
+            size_t len = InsecureRandRange((in.size() - pos + 1) / 2 + 1);
             hasher.Write((unsigned char*)&in[pos], len);
             pos += len;
             if (pos > 0 && pos + 2 * out.size() > in.size() && pos < in.size()) {
diff --git a/src/test/dbwrapper_tests.cpp b/src/test/dbwrapper_tests.cpp
index 2380ee202..34692c399 100644
--- a/src/test/dbwrapper_tests.cpp
+++ b/src/test/dbwrapper_tests.cpp
@@ -33,7 +33,7 @@ BOOST_AUTO_TEST_CASE(dbwrapper)
         fs::path ph = fs::temp_directory_path() / fs::unique_path();
         CDBWrapper dbw(ph, (1 << 20), true, false, obfuscate);
         char key = 'k';
-        uint256 in = insecure_rand256();
+        uint256 in = InsecureRand256();
         uint256 res;
 
         // Ensure that we're doing real obfuscation when obfuscate=true
@@ -55,11 +55,11 @@ BOOST_AUTO_TEST_CASE(dbwrapper_batch)
         CDBWrapper dbw(ph, (1 << 20), true, false, obfuscate);
 
         char key = 'i';
-        uint256 in = insecure_rand256();
+        uint256 in = InsecureRand256();
         char key2 = 'j';
-        uint256 in2 = insecure_rand256();
+        uint256 in2 = InsecureRand256();
         char key3 = 'k';
-        uint256 in3 = insecure_rand256();
+        uint256 in3 = InsecureRand256();
 
         uint256 res;
         CDBBatch batch(dbw);
@@ -93,10 +93,10 @@ BOOST_AUTO_TEST_CASE(dbwrapper_iterator)
 
         // The two keys are intentionally chosen for ordering
         char key = 'j';
-        uint256 in = insecure_rand256();
+        uint256 in = InsecureRand256();
         BOOST_CHECK(dbw.Write(key, in));
         char key2 = 'k';
-        uint256 in2 = insecure_rand256();
+        uint256 in2 = InsecureRand256();
         BOOST_CHECK(dbw.Write(key2, in2));
 
         std::unique_ptr<CDBIterator> it(const_cast<CDBWrapper*>(&dbw)->NewIterator());
@@ -134,7 +134,7 @@ BOOST_AUTO_TEST_CASE(existing_data_no_obfuscate)
     // Set up a non-obfuscated wrapper to write some initial data.
     CDBWrapper* dbw = new CDBWrapper(ph, (1 << 10), false, false, false);
     char key = 'k';
-    uint256 in = insecure_rand256();
+    uint256 in = InsecureRand256();
     uint256 res;
 
     BOOST_CHECK(dbw->Write(key, in));
@@ -156,7 +156,7 @@ BOOST_AUTO_TEST_CASE(existing_data_no_obfuscate)
     BOOST_CHECK(!odbw.IsEmpty()); // There should be existing data
     BOOST_CHECK(is_null_key(dbwrapper_private::GetObfuscateKey(odbw))); // The key should be an empty string
 
-    uint256 in2 = insecure_rand256();
+    uint256 in2 = InsecureRand256();
     uint256 res3;
  
     // Check that we can write successfully
@@ -175,7 +175,7 @@ BOOST_AUTO_TEST_CASE(existing_data_reindex)
     // Set up a non-obfuscated wrapper to write some initial data.
     CDBWrapper* dbw = new CDBWrapper(ph, (1 << 10), false, false, false);
     char key = 'k';
-    uint256 in = insecure_rand256();
+    uint256 in = InsecureRand256();
     uint256 res;
 
     BOOST_CHECK(dbw->Write(key, in));
@@ -193,7 +193,7 @@ BOOST_AUTO_TEST_CASE(existing_data_reindex)
     BOOST_CHECK(!odbw.Read(key, res2));
     BOOST_CHECK(!is_null_key(dbwrapper_private::GetObfuscateKey(odbw)));
 
-    uint256 in2 = insecure_rand256();
+    uint256 in2 = InsecureRand256();
     uint256 res3;
  
     // Check that we can write successfully
diff --git a/src/test/merkle_tests.cpp b/src/test/merkle_tests.cpp
index 118f2a66a..aae84a4fd 100644
--- a/src/test/merkle_tests.cpp
+++ b/src/test/merkle_tests.cpp
@@ -67,7 +67,7 @@ BOOST_AUTO_TEST_CASE(merkle_test)
 {
     for (int i = 0; i < 32; i++) {
         // Try 32 block sizes: all sizes from 0 to 16 inclusive, and then 15 random sizes.
-        int ntx = (i <= 16) ? i : 17 + (insecure_randrange(4000));
+        int ntx = (i <= 16) ? i : 17 + (InsecureRandRange(4000));
         // Try up to 3 mutations.
         for (int mutate = 0; mutate <= 3; mutate++) {
             int duplicate1 = mutate >= 1 ? 1 << ctz(ntx) : 0; // The last how many transactions to duplicate first.
@@ -120,7 +120,7 @@ BOOST_AUTO_TEST_CASE(merkle_test)
                     // If ntx <= 16, try all branches. Otherise, try 16 random ones.
                     int mtx = loop;
                     if (ntx > 16) {
-                        mtx = insecure_randrange(ntx);
+                        mtx = InsecureRandRange(ntx);
                     }
                     std::vector<uint256> newBranch = BlockMerkleBranch(block, mtx);
                     std::vector<uint256> oldBranch = BlockGetMerkleBranch(block, merkleTree, mtx);
diff --git a/src/test/miner_tests.cpp b/src/test/miner_tests.cpp
index 77eded091..53a9874fa 100644
--- a/src/test/miner_tests.cpp
+++ b/src/test/miner_tests.cpp
@@ -363,7 +363,7 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
     while (chainActive.Tip()->nHeight < 209999) {
         CBlockIndex* prev = chainActive.Tip();
         CBlockIndex* next = new CBlockIndex();
-        next->phashBlock = new uint256(insecure_rand256());
+        next->phashBlock = new uint256(InsecureRand256());
         pcoinsTip->SetBestBlock(next->GetBlockHash());
         next->pprev = prev;
         next->nHeight = prev->nHeight + 1;
@@ -375,7 +375,7 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
     while (chainActive.Tip()->nHeight < 210000) {
         CBlockIndex* prev = chainActive.Tip();
         CBlockIndex* next = new CBlockIndex();
-        next->phashBlock = new uint256(insecure_rand256());
+        next->phashBlock = new uint256(InsecureRand256());
         pcoinsTip->SetBestBlock(next->GetBlockHash());
         next->pprev = prev;
         next->nHeight = prev->nHeight + 1;
diff --git a/src/test/pmt_tests.cpp b/src/test/pmt_tests.cpp
index 408937415..708a9ca50 100644
--- a/src/test/pmt_tests.cpp
+++ b/src/test/pmt_tests.cpp
@@ -21,8 +21,8 @@ class CPartialMerkleTreeTester : public CPartialMerkleTree
 public:
     // flip one bit in one of the hashes - this should break the authentication
     void Damage() {
-        unsigned int n = insecure_randrange(vHash.size());
-        int bit = insecure_randbits(8);
+        unsigned int n = InsecureRandRange(vHash.size());
+        int bit = InsecureRandBits(8);
         *(vHash[n].begin() + (bit>>3)) ^= 1<<(bit&7);
     }
 };
@@ -31,7 +31,7 @@ BOOST_FIXTURE_TEST_SUITE(pmt_tests, BasicTestingSetup)
 
 BOOST_AUTO_TEST_CASE(pmt_test1)
 {
-    seed_insecure_rand(false);
+    SeedInsecureRand(false);
     static const unsigned int nTxCounts[] = {1, 4, 7, 17, 56, 100, 127, 256, 312, 513, 1000, 4095};
 
     for (int i = 0; i < 12; i++) {
@@ -62,7 +62,7 @@ BOOST_AUTO_TEST_CASE(pmt_test1)
             std::vector<bool> vMatch(nTx, false);
             std::vector<uint256> vMatchTxid1;
             for (unsigned int j=0; j<nTx; j++) {
-                bool fInclude = insecure_randbits(att / 2) == 0;
+                bool fInclude = InsecureRandBits(att / 2) == 0;
                 vMatch[j] = fInclude;
                 if (fInclude)
                     vMatchTxid1.push_back(vTxid[j]);
diff --git a/src/test/pow_tests.cpp b/src/test/pow_tests.cpp
index d881edbd7..49ed9263d 100644
--- a/src/test/pow_tests.cpp
+++ b/src/test/pow_tests.cpp
@@ -86,9 +86,9 @@ BOOST_AUTO_TEST_CASE(GetBlockProofEquivalentTime_test)
     }
 
     for (int j = 0; j < 1000; j++) {
-        CBlockIndex *p1 = &blocks[insecure_randrange(10000)];
-        CBlockIndex *p2 = &blocks[insecure_randrange(10000)];
-        CBlockIndex *p3 = &blocks[insecure_randrange(10000)];
+        CBlockIndex *p1 = &blocks[InsecureRandRange(10000)];
+        CBlockIndex *p2 = &blocks[InsecureRandRange(10000)];
+        CBlockIndex *p3 = &blocks[InsecureRandRange(10000)];
 
         int64_t tdiff = GetBlockProofEquivalentTime(*p1, *p2, *p3, params);
         BOOST_CHECK_EQUAL(tdiff, p1->GetBlockTime() - p2->GetBlockTime());
diff --git a/src/test/prevector_tests.cpp b/src/test/prevector_tests.cpp
index 5d9d18726..354fed1c1 100644
--- a/src/test/prevector_tests.cpp
+++ b/src/test/prevector_tests.cpp
@@ -187,7 +187,7 @@ public:
     }
 
     prevector_tester() {
-        seed_insecure_rand();
+        SeedInsecureRand();
         rand_seed = insecure_rand_seed;
         rand_cache = insecure_rand_ctx;
     }
@@ -198,65 +198,65 @@ BOOST_AUTO_TEST_CASE(PrevectorTestInt)
     for (int j = 0; j < 64; j++) {
         prevector_tester<8, int> test;
         for (int i = 0; i < 2048; i++) {
-            if (insecure_randbits(2) == 0) {
-                test.insert(insecure_randrange(test.size() + 1), insecure_rand());
+            if (InsecureRandBits(2) == 0) {
+                test.insert(InsecureRandRange(test.size() + 1), InsecureRand32());
             }
-            if (test.size() > 0 && insecure_randbits(2) == 1) {
-                test.erase(insecure_randrange(test.size()));
+            if (test.size() > 0 && InsecureRandBits(2) == 1) {
+                test.erase(InsecureRandRange(test.size()));
             }
-            if (insecure_randbits(3) == 2) {
-                int new_size = std::max<int>(0, std::min<int>(30, test.size() + (insecure_randrange(5)) - 2));
+            if (InsecureRandBits(3) == 2) {
+                int new_size = std::max<int>(0, std::min<int>(30, test.size() + (InsecureRandRange(5)) - 2));
                 test.resize(new_size);
             }
-            if (insecure_randbits(3) == 3) {
-                test.insert(insecure_randrange(test.size() + 1), 1 + insecure_randbool(), insecure_rand());
+            if (InsecureRandBits(3) == 3) {
+                test.insert(InsecureRandRange(test.size() + 1), 1 + InsecureRandBool(), InsecureRand32());
             }
-            if (insecure_randbits(3) == 4) {
-                int del = std::min<int>(test.size(), 1 + (insecure_randbool()));
-                int beg = insecure_randrange(test.size() + 1 - del);
+            if (InsecureRandBits(3) == 4) {
+                int del = std::min<int>(test.size(), 1 + (InsecureRandBool()));
+                int beg = InsecureRandRange(test.size() + 1 - del);
                 test.erase(beg, beg + del);
             }
-            if (insecure_randbits(4) == 5) {
-                test.push_back(insecure_rand());
+            if (InsecureRandBits(4) == 5) {
+                test.push_back(InsecureRand32());
             }
-            if (test.size() > 0 && insecure_randbits(4) == 6) {
+            if (test.size() > 0 && InsecureRandBits(4) == 6) {
                 test.pop_back();
             }
-            if (insecure_randbits(5) == 7) {
+            if (InsecureRandBits(5) == 7) {
                 int values[4];
-                int num = 1 + (insecure_randbits(2));
+                int num = 1 + (InsecureRandBits(2));
                 for (int k = 0; k < num; k++) {
-                    values[k] = insecure_rand();
+                    values[k] = InsecureRand32();
                 }
-                test.insert_range(insecure_randrange(test.size() + 1), values, values + num);
+                test.insert_range(InsecureRandRange(test.size() + 1), values, values + num);
             }
-            if (insecure_randbits(5) == 8) {
-                int del = std::min<int>(test.size(), 1 + (insecure_randbits(2)));
-                int beg = insecure_randrange(test.size() + 1 - del);
+            if (InsecureRandBits(5) == 8) {
+                int del = std::min<int>(test.size(), 1 + (InsecureRandBits(2)));
+                int beg = InsecureRandRange(test.size() + 1 - del);
                 test.erase(beg, beg + del);
             }
-            if (insecure_randbits(5) == 9) {
-                test.reserve(insecure_randbits(5));
+            if (InsecureRandBits(5) == 9) {
+                test.reserve(InsecureRandBits(5));
             }
-            if (insecure_randbits(6) == 10) {
+            if (InsecureRandBits(6) == 10) {
                 test.shrink_to_fit();
             }
             if (test.size() > 0) {
-                test.update(insecure_randrange(test.size()), insecure_rand());
+                test.update(InsecureRandRange(test.size()), InsecureRand32());
             }
-            if (insecure_randbits(10) == 11) {
+            if (InsecureRandBits(10) == 11) {
                 test.clear();
             }
-            if (insecure_randbits(9) == 12) {
-                test.assign(insecure_randbits(5), insecure_rand());
+            if (InsecureRandBits(9) == 12) {
+                test.assign(InsecureRandBits(5), InsecureRand32());
             }
-            if (insecure_randbits(3) == 3) {
+            if (InsecureRandBits(3) == 3) {
                 test.swap();
             }
-            if (insecure_randbits(4) == 8) {
+            if (InsecureRandBits(4) == 8) {
                 test.copy();
             }
-            if (insecure_randbits(5) == 18) {
+            if (InsecureRandBits(5) == 18) {
                 test.move();
             }
         }
diff --git a/src/test/sighash_tests.cpp b/src/test/sighash_tests.cpp
index c2813286a..eb671cb87 100644
--- a/src/test/sighash_tests.cpp
+++ b/src/test/sighash_tests.cpp
@@ -89,30 +89,30 @@ uint256 static SignatureHashOld(CScript scriptCode, const CTransaction& txTo, un
 void static RandomScript(CScript &script) {
     static const opcodetype oplist[] = {OP_FALSE, OP_1, OP_2, OP_3, OP_CHECKSIG, OP_IF, OP_VERIF, OP_RETURN, OP_CODESEPARATOR};
     script = CScript();
-    int ops = (insecure_randrange(10));
+    int ops = (InsecureRandRange(10));
     for (int i=0; i<ops; i++)
-        script << oplist[insecure_randrange(sizeof(oplist)/sizeof(oplist[0]))];
+        script << oplist[InsecureRandRange(sizeof(oplist)/sizeof(oplist[0]))];
 }
 
 void static RandomTransaction(CMutableTransaction &tx, bool fSingle) {
-    tx.nVersion = insecure_rand();
+    tx.nVersion = InsecureRand32();
     tx.vin.clear();
     tx.vout.clear();
-    tx.nLockTime = (insecure_randbool()) ? insecure_rand() : 0;
-    int ins = (insecure_randbits(2)) + 1;
-    int outs = fSingle ? ins : (insecure_randbits(2)) + 1;
+    tx.nLockTime = (InsecureRandBool()) ? InsecureRand32() : 0;
+    int ins = (InsecureRandBits(2)) + 1;
+    int outs = fSingle ? ins : (InsecureRandBits(2)) + 1;
     for (int in = 0; in < ins; in++) {
         tx.vin.push_back(CTxIn());
         CTxIn &txin = tx.vin.back();
-        txin.prevout.hash = insecure_rand256();
-        txin.prevout.n = insecure_randbits(2);
+        txin.prevout.hash = InsecureRand256();
+        txin.prevout.n = InsecureRandBits(2);
         RandomScript(txin.scriptSig);
-        txin.nSequence = (insecure_randbool()) ? insecure_rand() : (unsigned int)-1;
+        txin.nSequence = (InsecureRandBool()) ? InsecureRand32() : (unsigned int)-1;
     }
     for (int out = 0; out < outs; out++) {
         tx.vout.push_back(CTxOut());
         CTxOut &txout = tx.vout.back();
-        txout.nValue = insecure_randrange(100000000);
+        txout.nValue = InsecureRandRange(100000000);
         RandomScript(txout.scriptPubKey);
     }
 }
@@ -121,7 +121,7 @@ BOOST_FIXTURE_TEST_SUITE(sighash_tests, BasicTestingSetup)
 
 BOOST_AUTO_TEST_CASE(sighash_test)
 {
-    seed_insecure_rand(false);
+    SeedInsecureRand(false);
 
     #if defined(PRINT_SIGHASH_JSON)
     std::cout << "[\n";
@@ -133,12 +133,12 @@ BOOST_AUTO_TEST_CASE(sighash_test)
     nRandomTests = 500;
     #endif
     for (int i=0; i<nRandomTests; i++) {
-        int nHashType = insecure_rand();
+        int nHashType = InsecureRand32();
         CMutableTransaction txTo;
         RandomTransaction(txTo, (nHashType & 0x1f) == SIGHASH_SINGLE);
         CScript scriptCode;
         RandomScript(scriptCode);
-        int nIn = insecure_randrange(txTo.vin.size());
+        int nIn = InsecureRandRange(txTo.vin.size());
 
         uint256 sh, sho;
         sho = SignatureHashOld(scriptCode, txTo, nIn, nHashType);
diff --git a/src/test/skiplist_tests.cpp b/src/test/skiplist_tests.cpp
index 36f29a486..d70ccafd8 100644
--- a/src/test/skiplist_tests.cpp
+++ b/src/test/skiplist_tests.cpp
@@ -34,8 +34,8 @@ BOOST_AUTO_TEST_CASE(skiplist_test)
     }
 
     for (int i=0; i < 1000; i++) {
-        int from = insecure_randrange(SKIPLIST_LENGTH - 1);
-        int to = insecure_randrange(from + 1);
+        int from = InsecureRandRange(SKIPLIST_LENGTH - 1);
+        int to = InsecureRandRange(from + 1);
 
         BOOST_CHECK(vIndex[SKIPLIST_LENGTH - 1].GetAncestor(from) == &vIndex[from]);
         BOOST_CHECK(vIndex[from].GetAncestor(to) == &vIndex[to]);
@@ -77,7 +77,7 @@ BOOST_AUTO_TEST_CASE(getlocator_test)
 
     // Test 100 random starting points for locators.
     for (int n=0; n<100; n++) {
-        int r = insecure_randrange(150000);
+        int r = InsecureRandRange(150000);
         CBlockIndex* tip = (r < 100000) ? &vBlocksMain[r] : &vBlocksSide[r - 100000];
         CBlockLocator locator = chain.GetLocator(tip);
 
@@ -115,7 +115,7 @@ BOOST_AUTO_TEST_CASE(findearliestatleast_test)
         } else {
             // randomly choose something in the range [MTP, MTP*2]
             int64_t medianTimePast = vBlocksMain[i].GetMedianTimePast();
-            int r = insecure_randrange(medianTimePast);
+            int r = InsecureRandRange(medianTimePast);
             vBlocksMain[i].nTime = r + medianTimePast;
             vBlocksMain[i].nTimeMax = std::max(vBlocksMain[i].nTime, vBlocksMain[i-1].nTimeMax);
         }
@@ -134,7 +134,7 @@ BOOST_AUTO_TEST_CASE(findearliestatleast_test)
     // Verify that FindEarliestAtLeast is correct.
     for (unsigned int i=0; i<10000; ++i) {
         // Pick a random element in vBlocksMain.
-        int r = insecure_randrange(vBlocksMain.size());
+        int r = InsecureRandRange(vBlocksMain.size());
         int64_t test_time = vBlocksMain[r].nTime;
         CBlockIndex *ret = chain.FindEarliestAtLeast(test_time);
         BOOST_CHECK(ret->nTimeMax >= test_time);
diff --git a/src/test/test_bitcoin.cpp b/src/test/test_bitcoin.cpp
index 129c4a82e..b85f61132 100644
--- a/src/test/test_bitcoin.cpp
+++ b/src/test/test_bitcoin.cpp
@@ -67,7 +67,7 @@ TestingSetup::TestingSetup(const std::string& chainName) : BasicTestingSetup(cha
 
         RegisterAllCoreRPCCommands(tableRPC);
         ClearDatadirCache();
-        pathTemp = GetTempPath() / strprintf("test_bitcoin_%lu_%i", (unsigned long)GetTime(), (int)(insecure_randrange(100000)));
+        pathTemp = GetTempPath() / strprintf("test_bitcoin_%lu_%i", (unsigned long)GetTime(), (int)(InsecureRandRange(100000)));
         fs::create_directories(pathTemp);
         ForceSetArg("-datadir", pathTemp.string());
         mempool.setSanityCheck(1.0);
diff --git a/src/test/test_bitcoin.h b/src/test/test_bitcoin.h
index eecd8635e..3a62b14fe 100644
--- a/src/test/test_bitcoin.h
+++ b/src/test/test_bitcoin.h
@@ -18,7 +18,7 @@
 extern uint256 insecure_rand_seed;
 extern FastRandomContext insecure_rand_ctx;
 
-static inline void seed_insecure_rand(bool fDeterministic = false)
+static inline void SeedInsecureRand(bool fDeterministic = false)
 {
     if (fDeterministic) {
         insecure_rand_seed = uint256();
@@ -28,12 +28,12 @@ static inline void seed_insecure_rand(bool fDeterministic = false)
     insecure_rand_ctx = FastRandomContext(insecure_rand_seed);
 }
 
-static inline uint32_t insecure_rand() { return insecure_rand_ctx.rand32(); }
-static inline uint256 insecure_rand256() { return insecure_rand_ctx.rand256(); }
-static inline uint64_t insecure_randbits(int bits) { return insecure_rand_ctx.randbits(bits); }
-static inline uint64_t insecure_randrange(uint64_t range) { return insecure_rand_ctx.randrange(range); }
-static inline bool insecure_randbool() { return insecure_rand_ctx.randbool(); }
-static inline std::vector<unsigned char> insecure_randbytes(size_t len) { return insecure_rand_ctx.randbytes(len); }
+static inline uint32_t InsecureRand32() { return insecure_rand_ctx.rand32(); }
+static inline uint256 InsecureRand256() { return insecure_rand_ctx.rand256(); }
+static inline uint64_t InsecureRandBits(int bits) { return insecure_rand_ctx.randbits(bits); }
+static inline uint64_t InsecureRandRange(uint64_t range) { return insecure_rand_ctx.randrange(range); }
+static inline bool InsecureRandBool() { return insecure_rand_ctx.randbool(); }
+static inline std::vector<unsigned char> InsecureRandBytes(size_t len) { return insecure_rand_ctx.randbytes(len); }
 
 /** Basic testing setup.
  * This just configures logging and chain parameters.
diff --git a/src/test/util_tests.cpp b/src/test/util_tests.cpp
index 89f7025d0..d33c4f1cb 100644
--- a/src/test/util_tests.cpp
+++ b/src/test/util_tests.cpp
@@ -242,7 +242,7 @@ BOOST_AUTO_TEST_CASE(util_IsHex)
 
 BOOST_AUTO_TEST_CASE(util_seed_insecure_rand)
 {
-    seed_insecure_rand(true);
+    SeedInsecureRand(true);
     for (int mod=2;mod<11;mod++)
     {
         int mask = 1;
@@ -256,7 +256,7 @@ BOOST_AUTO_TEST_CASE(util_seed_insecure_rand)
         for (int i = 0; i < 10000; i++) {
             uint32_t rval;
             do{
-                rval=insecure_rand()&mask;
+                rval=InsecureRand32()&mask;
             }while(rval>=(uint32_t)mod);
             count += rval==0;
         }
diff --git a/src/test/versionbits_tests.cpp b/src/test/versionbits_tests.cpp
index 051d905c0..d8b4675b4 100644
--- a/src/test/versionbits_tests.cpp
+++ b/src/test/versionbits_tests.cpp
@@ -81,7 +81,7 @@ public:
 
     VersionBitsTester& TestStateSinceHeight(int height) {
         for (int i = 0; i < CHECKERS; i++) {
-            if (insecure_randbits(i) == 0) {
+            if (InsecureRandBits(i) == 0) {
                 BOOST_CHECK_MESSAGE(checker[i].GetStateSinceHeightFor(vpblock.empty() ? NULL : vpblock.back()) == height, strprintf("Test %i for StateSinceHeight", num));
             }
         }
@@ -91,7 +91,7 @@ public:
 
     VersionBitsTester& TestDefined() {
         for (int i = 0; i < CHECKERS; i++) {
-            if (insecure_randbits(i) == 0) {
+            if (InsecureRandBits(i) == 0) {
                 BOOST_CHECK_MESSAGE(checker[i].GetStateFor(vpblock.empty() ? NULL : vpblock.back()) == THRESHOLD_DEFINED, strprintf("Test %i for DEFINED", num));
             }
         }
@@ -101,7 +101,7 @@ public:
 
     VersionBitsTester& TestStarted() {
         for (int i = 0; i < CHECKERS; i++) {
-            if (insecure_randbits(i) == 0) {
+            if (InsecureRandBits(i) == 0) {
                 BOOST_CHECK_MESSAGE(checker[i].GetStateFor(vpblock.empty() ? NULL : vpblock.back()) == THRESHOLD_STARTED, strprintf("Test %i for STARTED", num));
             }
         }
@@ -111,7 +111,7 @@ public:
 
     VersionBitsTester& TestLockedIn() {
         for (int i = 0; i < CHECKERS; i++) {
-            if (insecure_randbits(i) == 0) {
+            if (InsecureRandBits(i) == 0) {
                 BOOST_CHECK_MESSAGE(checker[i].GetStateFor(vpblock.empty() ? NULL : vpblock.back()) == THRESHOLD_LOCKED_IN, strprintf("Test %i for LOCKED_IN", num));
             }
         }
@@ -121,7 +121,7 @@ public:
 
     VersionBitsTester& TestActive() {
         for (int i = 0; i < CHECKERS; i++) {
-            if (insecure_randbits(i) == 0) {
+            if (InsecureRandBits(i) == 0) {
                 BOOST_CHECK_MESSAGE(checker[i].GetStateFor(vpblock.empty() ? NULL : vpblock.back()) == THRESHOLD_ACTIVE, strprintf("Test %i for ACTIVE", num));
             }
         }
@@ -131,7 +131,7 @@ public:
 
     VersionBitsTester& TestFailed() {
         for (int i = 0; i < CHECKERS; i++) {
-            if (insecure_randbits(i) == 0) {
+            if (InsecureRandBits(i) == 0) {
                 BOOST_CHECK_MESSAGE(checker[i].GetStateFor(vpblock.empty() ? NULL : vpblock.back()) == THRESHOLD_FAILED, strprintf("Test %i for FAILED", num));
             }
         }
diff --git a/src/wallet/test/crypto_tests.cpp b/src/wallet/test/crypto_tests.cpp
index eec916c9d..cbd74b6f9 100644
--- a/src/wallet/test/crypto_tests.cpp
+++ b/src/wallet/test/crypto_tests.cpp
@@ -81,7 +81,7 @@ BOOST_AUTO_TEST_CASE(passphrase) {
     std::string hash(GetRandHash().ToString());
     std::vector<unsigned char> vchSalt(8);
     GetRandBytes(&vchSalt[0], vchSalt.size());
-    uint32_t rounds = insecure_rand();
+    uint32_t rounds = InsecureRand32();
     if (rounds > 30000)
         rounds = 30000;
     TestCrypter::TestPassphrase(vchSalt, SecureString(hash.begin(), hash.end()), rounds);