diff --git a/src/test/fuzz/CMakeLists.txt b/src/test/fuzz/CMakeLists.txt
--- a/src/test/fuzz/CMakeLists.txt
+++ b/src/test/fuzz/CMakeLists.txt
@@ -93,6 +93,7 @@
 	chain
 	checkqueue
 	coins_view
+	crypto
 	crypto_common
 	cuckoocache
 	descriptor_parse
diff --git a/src/test/fuzz/crypto.cpp b/src/test/fuzz/crypto.cpp
new file mode 100644
--- /dev/null
+++ b/src/test/fuzz/crypto.cpp
@@ -0,0 +1,132 @@
+// Copyright (c) 2020 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <crypto/hmac_sha256.h>
+#include <crypto/hmac_sha512.h>
+#include <crypto/ripemd160.h>
+#include <crypto/sha1.h>
+#include <crypto/sha256.h>
+#include <crypto/sha512.h>
+#include <hash.h>
+
+#include <test/fuzz/FuzzedDataProvider.h>
+#include <test/fuzz/fuzz.h>
+#include <test/fuzz/util.h>
+
+#include <cstdint>
+#include <vector>
+
+void test_one_input(const std::vector<uint8_t> &buffer) {
+    FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
+    std::vector<uint8_t> data =
+        ConsumeRandomLengthByteVector(fuzzed_data_provider);
+    if (data.empty()) {
+        data.resize(
+            fuzzed_data_provider.ConsumeIntegralInRange<size_t>(1, 4096),
+            fuzzed_data_provider.ConsumeIntegral<uint8_t>());
+    }
+
+    CHash160 hash160;
+    CHash256 hash256;
+    CHMAC_SHA256 hmac_sha256{data.data(), data.size()};
+    CHMAC_SHA512 hmac_sha512{data.data(), data.size()};
+    CRIPEMD160 ripemd160;
+    CSHA1 sha1;
+    CSHA256 sha256;
+    CSHA512 sha512;
+    CSipHasher sip_hasher{fuzzed_data_provider.ConsumeIntegral<uint64_t>(),
+                          fuzzed_data_provider.ConsumeIntegral<uint64_t>()};
+
+    while (fuzzed_data_provider.ConsumeBool()) {
+        switch (fuzzed_data_provider.ConsumeIntegralInRange<int>(0, 2)) {
+            case 0: {
+                if (fuzzed_data_provider.ConsumeBool()) {
+                    data = ConsumeRandomLengthByteVector(fuzzed_data_provider);
+                    if (data.empty()) {
+                        data.resize(
+                            fuzzed_data_provider.ConsumeIntegralInRange<size_t>(
+                                1, 4096),
+                            fuzzed_data_provider.ConsumeIntegral<uint8_t>());
+                    }
+                }
+
+                (void)hash160.Write(data.data(), data.size());
+                (void)hash256.Write(data.data(), data.size());
+                (void)hmac_sha256.Write(data.data(), data.size());
+                (void)hmac_sha512.Write(data.data(), data.size());
+                (void)ripemd160.Write(data.data(), data.size());
+                (void)sha1.Write(data.data(), data.size());
+                (void)sha256.Write(data.data(), data.size());
+                (void)sha512.Write(data.data(), data.size());
+                (void)sip_hasher.Write(data.data(), data.size());
+
+                (void)Hash(data.begin(), data.end());
+                (void)Hash160(data);
+                (void)Hash160(data.begin(), data.end());
+                (void)sha512.Size();
+                break;
+            }
+            case 1: {
+                (void)hash160.Reset();
+                (void)hash256.Reset();
+                (void)ripemd160.Reset();
+                (void)sha1.Reset();
+                (void)sha256.Reset();
+                (void)sha512.Reset();
+                break;
+            }
+            case 2: {
+                switch (
+                    fuzzed_data_provider.ConsumeIntegralInRange<int>(0, 8)) {
+                    case 0: {
+                        data.resize(CHash160::OUTPUT_SIZE);
+                        hash160.Finalize(data.data());
+                        break;
+                    }
+                    case 1: {
+                        data.resize(CHash256::OUTPUT_SIZE);
+                        hash256.Finalize(data.data());
+                        break;
+                    }
+                    case 2: {
+                        data.resize(CHMAC_SHA256::OUTPUT_SIZE);
+                        hmac_sha256.Finalize(data.data());
+                        break;
+                    }
+                    case 3: {
+                        data.resize(CHMAC_SHA512::OUTPUT_SIZE);
+                        hmac_sha512.Finalize(data.data());
+                        break;
+                    }
+                    case 4: {
+                        data.resize(CRIPEMD160::OUTPUT_SIZE);
+                        ripemd160.Finalize(data.data());
+                        break;
+                    }
+                    case 5: {
+                        data.resize(CSHA1::OUTPUT_SIZE);
+                        sha1.Finalize(data.data());
+                        break;
+                    }
+                    case 6: {
+                        data.resize(CSHA256::OUTPUT_SIZE);
+                        sha256.Finalize(data.data());
+                        break;
+                    }
+                    case 7: {
+                        data.resize(CSHA512::OUTPUT_SIZE);
+                        sha512.Finalize(data.data());
+                        break;
+                    }
+                    case 8: {
+                        data.resize(1);
+                        data[0] = sip_hasher.Finalize() % 256;
+                        break;
+                    }
+                }
+                break;
+            }
+        }
+    }
+}