FT4 Library/lib.ft4.core.auth/verify_signers_with_message

verify_signers_with_message

function verify_signers_with_message(ft_and_evm_signers: list<byte_array>, message: text)(source)

Does what verify_signers does, but receives the message as a parameter instead of using the auth message of the current operation.

Can only be called from an operation.

Throws "MISMATCHED SIGNATURES" if any of the signers and signatures on the evm_signatures operation don't match in the exact order they're found.

Throws "MISSING SIGNATURE" if:

  • an EVM signer is specified but the signature is not found in the evm_signatures operation.

  • an FT signer is specified but the signature is not found in the signers of the transaction.

Throws "UNSUPPORTED SIGNER" if a signer passed is neither an EVM nor an FT signer, which means the byte array length is different from EVM_ADDRESS_SIZE and FT_PUBKEY_SIZE

Throws if the message is empty.

Throws if any signatures in evm_signatures is null or missing, or if there's extra signatures in that operation.

Parameters

ft_and_evm_signers

the signers that are expected to be found.

message

the message that was signed.

See also

verify_signers

if the message that must be signed is the one defined in the auth_handler for the current operation