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cryptonote_core: rm confusing/redundant BP consensus rule

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This rule is confusing/redundant because before v8, no
bulletproofs whatsoever were allowed. And during and after
v8, ONLY multi-output bulletproofs were allowed, i.e.
exactly 1 bulletproof is allowed which proves the range of
all amount commitments in the transaction.

Sources:
  * No BP before v8:
    - d32b5bfe18/src/cryptonote_core/blockchain.cpp (L3021-L3032)
  * Only 1 BP allowed:
    - d32b5bfe18/src/cryptonote_basic/cryptonote_format_utils.cpp (L174)
    - d32b5bfe18/src/cryptonote_basic/cryptonote_format_utils.cpp (L150)
  * BP must cover all outputs:
    - d32b5bfe18/src/cryptonote_basic/cryptonote_format_utils.cpp (L190-L194)
    - d32b5bfe18/src/cryptonote_basic/cryptonote_format_utils.cpp (L166-L170)
This commit is contained in:
jeffro256
2025-10-09 15:57:49 -05:00
parent b591866fcf
commit 0fc5e87f2c
1 changed files with 0 additions and 16 deletions
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16
src/cryptonote_core/blockchain.cpp
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@@ -3606,22 +3606,6 @@ bool Blockchain::check_tx_inputs(transaction& tx, tx_verification_context &tvc,
MERROR_VER("Unsupported rct type: " << rv.type);
return false;
}
// for bulletproofs, check they're only multi-output after v8
if (rct::is_rct_bulletproof(rv.type))
{
if (hf_version < 8)
{
for (const rct::Bulletproof &proof: rv.p.bulletproofs)
{
if (proof.V.size() > 1)
{
MERROR_VER("Multi output bulletproofs are invalid before v8");
return false;
}
}
}
}
}
return true;
}