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EVM/Node: prevalidation of authorizations (EIP-7702)

Context

Closes L2-292.

Some checks can be added regarding authorizations from EIP-7702 before at prevalidation to avoid faulty blueprints. In particular regarding nonces and chain ids.

The way we tackle this is pretty straightforward:

  • the chain id can easily be checked because we have access to the context
  • we recover the signer's address thanks to the signature (r,s,y_parity) and we can retrieve the current nonce of the signer through the context as well

This will allow to reject invalid EIP-7702 transactions at an early stage.

Testing

Already existing EIP-7702 scenario:

dune exec etherlink/tezt/tests/main.exe -- evm eip7702 /dal /multichain_enabled alpha --file evm_sequencer.ml
Edited by Rodi-Can Bozman

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