is_evm_signatures_authorized_operation

Checks whether evm_signatures operation can be used with provided operation.

We don't keep track of nonce for keys used with evm_signatures, therefore if not used with care, authorizing an operation with evm_signatures could lead to replay attack.

In order to use it with an operation, the operation has to be whitelisted. By default, library only allows evm_signatures to be used with certain operations.

evm_signatures is safe to use in combination with ft_auth or evm_auth operation.

However, if used as only way to authorize an operation, the operation has to ensure that it cannot be called more than once with same parameters.

One way to avoid that is if the operation creates an entity that has some key value that is derived from operation parameters.

Throws "EVM SIG PARSING ERROR" if the chromia.yml cannot be parsed for this parameter, e.g. if some elements are not text or there are duplicates.

Parameters

See also