From 31f44e967ba53deef64397761c9a17d8c69f59ce Mon Sep 17 00:00:00 2001
From: Tom Trevethan <ttrevethan@blockstream.com>
Date: Wed, 18 Mar 2026 13:19:34 +0000
Subject: [PATCH] set proof cache initialisations in blind_tests

---
 src/init.cpp                    |  1 -
 src/test/blind_tests.cpp        | 14 +++++++-------
 src/test/fuzz/simplicity_tx.cpp |  3 ---
 3 files changed, 7 insertions(+), 11 deletions(-)

diff --git a/src/init.cpp b/src/init.cpp
index f84a3ced39..210d0250fa 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -1307,7 +1307,6 @@ bool AppInitMain(NodeContext& node, interfaces::BlockAndHeaderTipInfo* tip_info)
     }
 
     ValidationCacheSizes validation_cache_sizes{};
-//    ApplyArgsManOptions(args, validation_cache_sizes);
     if (!InitRangeproofCache(validation_cache_sizes.rangeproof_cache_bytes)
         || !InitSurjectionproofCache(validation_cache_sizes.surjectionproof_execution_cache_bytes))
     {
diff --git a/src/test/blind_tests.cpp b/src/test/blind_tests.cpp
index fa99f8d7ae..42dded0ddc 100644
--- a/src/test/blind_tests.cpp
+++ b/src/test/blind_tests.cpp
@@ -8,6 +8,7 @@
 #include <random.h>
 #include <uint256.h>
 #include <validation.h>
+#include <script/sigcache.h>
 
 #include <test/util/setup_common.h>
 
@@ -26,6 +27,9 @@ BOOST_FIXTURE_TEST_SUITE(blind_tests, ElementsSetup)
 
 BOOST_AUTO_TEST_CASE(naive_blinding_test)
 {
+    BOOST_CHECK(InitRangeproofCache(DEFAULT_VALIDATION_CACHE_BYTES / 4));
+    BOOST_CHECK(InitSurjectionproofCache(DEFAULT_VALIDATION_CACHE_BYTES / 4));
+
     CKey key1;
     CKey key2;
     CKey keyDummy;
@@ -126,8 +130,7 @@ BOOST_AUTO_TEST_CASE(naive_blinding_test)
         BOOST_CHECK(BlindTransaction(input_blinds, input_asset_blinds, input_assets, input_amounts, output_blinds, output_asset_blinds, output_pubkeys, vDummy, vDummy, tx3) == 2);
         BOOST_CHECK(!tx3.vout[0].nValue.IsExplicit());
         BOOST_CHECK(!tx3.vout[2].nValue.IsExplicit());
-        // ELEMENTS: FIXME: memory access violation: invalid permissions. range/surjection proof sig caching. 
-        //BOOST_CHECK(VerifyAmounts(inputs, CTransaction(tx3), nullptr, false));
+        BOOST_CHECK(VerifyAmounts(inputs, CTransaction(tx3), nullptr, false));
 
         CAmount unblinded_amount;
         BOOST_CHECK(UnblindConfidentialPair(key2, tx3.vout[0].nValue, tx3.vout[0].nAsset, tx3.vout[0].nNonce, op_true, tx3.witness.vtxoutwit[0].vchRangeproof, unblinded_amount, blind3, unblinded_id, asset_blind) == 0);
@@ -232,9 +235,7 @@ BOOST_AUTO_TEST_CASE(naive_blinding_test)
         BOOST_CHECK(!tx4.vout[0].nValue.IsExplicit());
         BOOST_CHECK(tx4.vout[1].nValue.IsExplicit());
         BOOST_CHECK(!tx4.vout[2].nValue.IsExplicit());
-        // This one broken
-        // ELEMENTS: FIXME: memory access violation: invalid permissions. range/surjection proof sig caching. 
-        // BOOST_CHECK(VerifyAmounts(inputs, CTransaction(tx4), nullptr, false));
+        BOOST_CHECK(VerifyAmounts(inputs, CTransaction(tx4), nullptr, false));
 
         CAmount unblinded_amount;
         CAsset asset_out;
@@ -334,8 +335,7 @@ BOOST_AUTO_TEST_CASE(naive_blinding_test)
         // Blind transaction, verify amounts
         txtemp = tx5;
         BOOST_CHECK(BlindTransaction(input_blinds, input_asset_blinds, input_assets, input_amounts, output_blinds, output_asset_blinds, output_pubkeys, vDummy, vDummy, txtemp) == 4);
-        // ELEMENTS: FIXME: memory access violation: invalid permissions. range/surjection proof sig caching. 
-        // BOOST_CHECK(VerifyAmounts(inputs, CTransaction(txtemp), nullptr, false));
+        BOOST_CHECK(VerifyAmounts(inputs, CTransaction(txtemp), nullptr, false));
 
         // Transaction may not have spendable 0-value output
         txtemp.vout.emplace_back(CAsset(), 0, CScript() << OP_TRUE);
diff --git a/src/test/fuzz/simplicity_tx.cpp b/src/test/fuzz/simplicity_tx.cpp
index df3a8319bf..fe4001b0e9 100644
--- a/src/test/fuzz/simplicity_tx.cpp
+++ b/src/test/fuzz/simplicity_tx.cpp
@@ -44,9 +44,6 @@ void initialize_simplicity_tx()
     g_con_elementsmode = true;
     // Copied from init.cpp AppInitMain
     kernel::ValidationCacheSizes validation_cache_sizes{};
-    // ELEMENTS: FIXME: range/surjection proof sig caching. 
-//    Assert(InitSignatureCache(validation_cache_sizes.signature_cache_bytes));
-//    Assert(InitScriptExecutionCache(validation_cache_sizes.script_execution_cache_bytes));
     Assert(InitRangeproofCache(validation_cache_sizes.rangeproof_cache_bytes));
     Assert(InitSurjectionproofCache(validation_cache_sizes.surjectionproof_execution_cache_bytes));