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EIP712 Filtering count checking

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Alexandre Paillier
2022-08-19 18:31:00 +02:00
parent 93b0bb08f7
commit ed479128fd
12 changed files with 139 additions and 67 deletions
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doc/ethapp.adoc
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@@ -810,22 +810,21 @@ Full filtering is disabled by default and has to be changed with this APDU (defa
Field substitution will be ignored if the full filtering is not activated.
If activated, fields will be by default hidden unless they receive a field name substitution.
This command should come before the domain & message implementations. If activated, fields will be by default hidden unless they receive a field name substitution.
##### Contract name substitution
##### Message info
Name substitution commands should come right after the contract address from the domain has been sent with a *SEND STRUCT IMPLEMENTATION*.
Perfect moment to do it is when the domain implementation has been sent, just before sending the message implementation.
This command should come right after the implementation of the domain has been sent with *SEND STRUCT IMPLEMENTATION*, just before sending the message implementation.
The first byte is used so that a signature of one type cannot be valid as another type.
The signature is computed on :
183 || chain ID (BE) || contract address || schema hash || display name
183 || chain ID (BE) || contract address || schema hash || filters count || display name
##### Field name substitution
##### Show field
Name substitution commands should come before the corresponding *SEND STRUCT IMPLEMENTATION* and are only usable for message fields (and not domain ones).
These commands should come before the corresponding *SEND STRUCT IMPLEMENTATION* and are only usable for message fields (and not domain ones).
The first byte is used so that a signature of one type cannot be valid as another type.
The signature is computed on :
@@ -842,19 +841,31 @@ _Command_
| E0 | 1E | 00
| 00 : activate
0F : contract name
0F : message info
FF : field name
FF : show field
| variable | variable
|=========================================================================
_Input data_
##### If P1 == activate
##### If P2 == activate
None
##### If P1 == contract name OR P1 == field name
##### If P2 == message info
[width="80%"]
|==========================================
| *Description* | *Length (byte)*
| Display name length | 1
| Display name | variable
| Filters count | 1
| Signature length | 1
| Signature | variable
|==========================================
##### If P2 == show field
[width="80%"]
|==========================================