New "Halfway RingCT" outputs for coinbase transactions

When RingCT is enabled, outputs from coinbase transactions
are created as a single output, and stored as RingCT output,
with a fake mask. Their amount is not hidden on the blockchain
itself, but they are then able to be used as fake inputs in
a RingCT ring. Since the output amounts are hidden, their
"dustiness" is not an obstacle anymore to mixing, and this
makes the coinbase transactions a lot smaller, as well as
helping the TXO set to grow more slowly.

Also add a new "Null" type of rct signature, which decreases
the size required when no signatures are to be stored, as
in a coinbase tx.

1 files changed, 2 insertions, 0 deletions

diff --git a/tests/core_tests/block_validation.cpp b/tests/core_tests/block_validation.cpp
index 3989a71c9..df8972556 100644
--- a/tests/core_tests/block_validation.cpp
+++ b/tests/core_tests/block_validation.cpp
@@ -337,6 +337,7 @@ bool gen_block_miner_tx_has_2_in::generate(std::vector<test_event_entry>& events
   se.amount = blk_0.miner_tx.vout[0].amount;
   se.push_output(0, boost::get<txout_to_key>(blk_0.miner_tx.vout[0].target).key, se.amount);
   se.real_output = 0;
+  se.rct = false;
   se.real_out_tx_key = get_tx_pub_key_from_extra(blk_0.miner_tx);
   se.real_output_in_tx_index = 0;
   std::vector<tx_source_entry> sources;
@@ -379,6 +380,7 @@ bool gen_block_miner_tx_with_txin_to_key::generate(std::vector<test_event_entry>
   se.amount = blk_1.miner_tx.vout[0].amount;
   se.push_output(0, boost::get<txout_to_key>(blk_1.miner_tx.vout[0].target).key, se.amount);
   se.real_output = 0;
+  se.rct = false;
   se.real_out_tx_key = get_tx_pub_key_from_extra(blk_1.miner_tx);
   se.real_output_in_tx_index = 0;
   std::vector<tx_source_entry> sources;