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Updated EIP-712 filtering APDU doc to include the chain ID in the sig

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Alexandre Paillier
2022-06-24 18:18:09 +02:00
parent ca37612f61
commit 9884fadefc
1 changed files with 3 additions and 2 deletions
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doc/ethapp.adoc
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@@ -804,10 +804,11 @@ If activated, fields will be by default hidden unless they receive a field name
Name substitution commands should come right after the contract address from the domain has been sent with a *SEND STRUCT IMPLEMENTATION*. 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. Perfect moment to do it is when the domain implementation has been sent, just before sending the message implementation.
The chain ID used for the signature must be 8 bytes wide.
The signature is computed on : The signature is computed on :
contract address || display name length || display name chain ID (BE) || contract address || display name length || display name
##### Field name substitution ##### Field name substitution
@@ -816,7 +817,7 @@ Name substitution commands should come before the corresponding *SEND STRUCT IMP
The signature is computed on : The signature is computed on :
contract address || json key length || json key || display name length || display name chain ID (BE) || contract address || json key length || json key || display name length || display name
#### Coding #### Coding