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Include base_fee & marginal_fee constants. 

Update the discount constant to 3.
Create deployment section and make Security and Privacy considerations top-level heading.
This commit is contained in:
nighthawk24 2022-08-18 16:30:02 -04:00
parent 94d6b8acb2
commit 0628577cbc
1 changed files with 28 additions and 14 deletions
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42
zip-proportional-output-fee-mechanism-pofm.rst
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@ -69,7 +69,7 @@ Requirements for gathering consensus
Wallet developers SHOULD update the fees to the proposed formula by Madars and
Kris Nuttycombe [#madars-1]_
min_fee = base_fee * max(1, #inputs + #outputs - 4)
min_fee = base_fee * max(1, #inputs + #outputs - 3)
Where #inputs and #outputs also take into account transparent inputs and outputs.
Otherwise, the fee structure (if not otherwise changed) will preferentially encourage
@ -115,8 +115,27 @@ The following parties need to be part of the consensus:
* zcash-light-client-ffi
* zcash-android-wallet-sdk
Security and privacy considerations
-----------------------------------
Specification
=============
Wallets implementing this specification will use a conventional fee in the form of
base_fee and marginal_fee.
The proposal would end up selecting one of:
* base_fee = 1000, marginal_fee = 250 in @nuttycom's proposal.
* base_fee = 1000, marginal_fee = 1000 in @madars' proposal.
* base_fee = 10000, marginal_fee = 2500 in @daira's proposal.
* base_fee = 1000, marginal_fee = 1000 for Shielded, Shielding and De-shielding
transactions, and base_fee = 10000, marginal_fee = 10000 for Transparent transactions
per @nighthawk24's proposal.
And calculated per the following forumla:
min_fee = base_fee + marginal_fee * max(0, #inputs + #outputs - 3)
Security and Privacy considerations
=============
Unique transaction fees may reveal specific users or wallets or wallet versions,
which would reduce privacy for those specific users and the rest of the network.
@ -158,17 +177,6 @@ Wallet developers and operators should monitor the Zcash network for rapid
growth in transaction rates.
Specification
=============
Wallets implementing this specification will use a conventional fee in the form of
base_fee = ...
marginal_fee = ...
min_fee = base_fee + marginal_fee * max(0, #inputs + #outputs - 4)
starting from block 1,800,000 for Mainnet, or immediately on implementing this
ZIP for Testnet.
Transaction relaying
--------------------
@ -187,6 +195,12 @@ specifies a *low\_fee\_penalty* that is added to the "eviction weight" if the
transaction pays a fee less than the `min_fee` specified by this ZIP.
Deployment
=============
The height for coordinating deployment is block 1,800,000 for Mainnet, or immediately on
implementing this ZIP for Testnet.
Endorsements
============