trezor-firmware/firmware/protob/messages-stellar.options

StellarAssetType.code                                   max_size:13
StellarAssetType.issuer                                 max_size:57
StellarGetAddress.address_n                             max_count:10

StellarAddress.address                                  max_size:57

StellarGetPublicKey.address_n                           max_count:10

StellarPublicKey.public_key                             max_size:32

StellarSignTx.address_n                                 max_count:10
StellarSignTx.network_passphrase                        max_size:1024
StellarSignTx.memo_text                                 max_size:29
StellarSignTx.memo_hash                                 max_size:32

StellarPaymentOp.destination_account                    max_size:57

StellarCreateAccountOp.new_account                      max_size:57

StellarPathPaymentOp.destination_account                max_size:57
StellarPathPaymentOp.paths                              max_count:5

StellarSetOptionsOp.inflation_destination_account       max_size:57
StellarSetOptionsOp.home_domain                         max_size:33
StellarSetOptionsOp.signer_key                          max_size:32

StellarAllowTrustOp.trusted_account                     max_size:57
StellarAllowTrustOp.asset_code                          max_size:13

StellarAccountMergeOp.destination_account               max_size:57

StellarManageDataOp.key                                 max_size:65
StellarManageDataOp.value                               max_size:65

StellarSignedTx.public_key                              max_size:32
StellarSignedTx.signature                               max_size:64 # ed25519 signatures are 64 bytes, this does not include the hint