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fix(core/cardano): reintroduce max tx output size

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Output size is currently limited to 4000 bytes at protocol level. Given the maximum transaction size Trezor can handle (~9kB), we also want to enforce this size limit here so that when the limit is raised at protocol level again, Trezor would still not be able to produce larger outputs than it could reliably spend. Once Cardano-transaction signing is refactored to be completely streamed and maximum supported transaction size is thus raised, this limit can be lifted.
This commit is contained in:
gabrielkerekes 2021-04-27 07:39:18 +02:00 committed by matejcik
parent a92b5fc333
commit b2de8909d1
2 changed files with 531 additions and 2 deletions
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495
common/tests/fixtures/cardano/sign_tx.failed.json vendored
View File

@ -797,6 +797,501 @@
"error_message": "Invalid certificate path" "error_message": "Invalid certificate path"
} }
}, },
{
"description": "Too many tokens in output",
"parameters": {
"protocol_magic": 764824073,
"network_id": 1,
"fee": 42,
"ttl": 10,
"certificates": [],
"withdrawals": [],
"auxiliary_data": null,
"inputs": [
{
"path": "m/1852'/1815'/0'/0/0",
"prev_hash": "3b40265111d8bb3c3c608d95b3a0bf83461ace32d79336579a1939b3aad1c0b7",
"prev_index": 0
}
],
"outputs": [
{
"address": "Ae2tdPwUPEZCanmBz5g2GEwFqKTKpNJcGYPKfDxoNeKZ8bRHr8366kseiK2",
"amount": "3003112",
"token_bundle": [
{
"policy_id": "00a292ffee938be03e9bae5657982a74e9014eb4960108c9e23a5b39",
"tokens": [
{
"asset_name_bytes": "01aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "7878754"
},
{
"asset_name_bytes": "02aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "1234"
},
{
"asset_name_bytes": "03aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "1234"
},
{
"asset_name_bytes": "04aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "1234"
},
{
"asset_name_bytes": "05aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "1234"
},
{
"asset_name_bytes": "06aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "1234"
},
{
"asset_name_bytes": "07aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "1234"
},
{
"asset_name_bytes": "08aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "1234"
},
{
"asset_name_bytes": "09aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "1234"
}
]
},
{
"policy_id": "01a292ffee938be03e9bae5657982a74e9014eb4960108c9e23a5b39",
"tokens": [
{
"asset_name_bytes": "10aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "11aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "12aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "13aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "14aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "15aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "16aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "17aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
}
]
},
{
"policy_id": "02a292ffee938be03e9bae5657982a74e9014eb4960108c9e23a5b39",
"tokens": [
{
"asset_name_bytes": "18aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "19aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "20aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "21aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "22aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "23aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "24aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "25aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
}
]
},
{
"policy_id": "03a292ffee938be03e9bae5657982a74e9014eb4960108c9e23a5b39",
"tokens": [
{
"asset_name_bytes": "26aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "27aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "28aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "29aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "30aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "31aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "32aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "33aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
}
]
},
{
"policy_id": "04a292ffee938be03e9bae5657982a74e9014eb4960108c9e23a5b39",
"tokens": [
{
"asset_name_bytes": "34aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "35aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "36aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "37aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "38aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "39aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "40aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "41aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
}
]
},
{
"policy_id": "05a292ffee938be03e9bae5657982a74e9014eb4960108c9e23a5b39",
"tokens": [
{
"asset_name_bytes": "42aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "43aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "44aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "45aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "46aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "47aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "48aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "49aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
}
]
},
{
"policy_id": "06a292ffee938be03e9bae5657982a74e9014eb4960108c9e23a5b39",
"tokens": [
{
"asset_name_bytes": "50aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "51aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "52aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "53aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "54aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "55aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "56aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "57aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
}
]
},
{
"policy_id": "07a292ffee938be03e9bae5657982a74e9014eb4960108c9e23a5b39",
"tokens": [
{
"asset_name_bytes": "58aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "59aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "60aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "61aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "62aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "63aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "64aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "65aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
}
]
},
{
"policy_id": "08a292ffee938be03e9bae5657982a74e9014eb4960108c9e23a5b39",
"tokens": [
{
"asset_name_bytes": "66aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "67aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "68aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "69aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "70aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "71aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "72aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "73aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
}
]
},
{
"policy_id": "09a292ffee938be03e9bae5657982a74e9014eb4960108c9e23a5b39",
"tokens": [
{
"asset_name_bytes": "74aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "75aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "76aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "77aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "78aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "79aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "80aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "81aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
}
]
},
{
"policy_id": "10a292ffee938be03e9bae5657982a74e9014eb4960108c9e23a5b39",
"tokens": [
{
"asset_name_bytes": "82aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "83aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "84aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "85aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "86aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "87aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "88aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "89aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
}
]
},
{
"policy_id": "11a292ffee938be03e9bae5657982a74e9014eb4960108c9e23a5b39",
"tokens": [
{
"asset_name_bytes": "90aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "91aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "92aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "93aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "94aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "95aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "96aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "97aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
}
]
},
{
"policy_id": "12a292ffee938be03e9bae5657982a74e9014eb4960108c9e23a5b39",
"tokens": [
{
"asset_name_bytes": "98aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "99aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
},
{
"asset_name_bytes": "100aaaaaaaaaaaaaaaaaaaaaaa",
"amount": "47"
}
]
}
]
}
]
},
"result": {
"error_message": "Maximum tx output value size"
}
},
{ {
"description": "Repeated asset name in multiasset token group", "description": "Repeated asset name in multiasset token group",
"parameters": { "parameters": {

38
core/src/apps/cardano/sign_tx.py
View File

@ -95,6 +95,7 @@ if False:
MINTING_POLICY_ID_LENGTH = 28 MINTING_POLICY_ID_LENGTH = 28
MAX_ASSET_NAME_LENGTH = 32 MAX_ASSET_NAME_LENGTH = 32
MAX_TX_CHUNK_SIZE = 256 MAX_TX_CHUNK_SIZE = 256
MAX_TX_OUTPUT_SIZE = 4000
@seed.with_keychain @seed.with_keychain
@ -136,7 +137,7 @@ async def _sign_ordinary_tx(
ctx, keychain, i.address_n, SCHEMA_ADDRESS.match(i.address_n) ctx, keychain, i.address_n, SCHEMA_ADDRESS.match(i.address_n)
) )
_validate_outputs(msg.outputs, msg.protocol_magic, msg.network_id) _validate_outputs(keychain, msg.outputs, msg.protocol_magic, msg.network_id)
_validate_certificates(msg.certificates, msg.protocol_magic, msg.network_id) _validate_certificates(msg.certificates, msg.protocol_magic, msg.network_id)
_validate_withdrawals(msg.withdrawals) _validate_withdrawals(msg.withdrawals)
validate_auxiliary_data(msg.auxiliary_data) validate_auxiliary_data(msg.auxiliary_data)
@ -165,7 +166,7 @@ async def _sign_stake_pool_registration_tx(
_validate_stake_pool_registration_tx_structure(msg) _validate_stake_pool_registration_tx_structure(msg)
_ensure_no_signing_inputs(msg.inputs) _ensure_no_signing_inputs(msg.inputs)
_validate_outputs(msg.outputs, msg.protocol_magic, msg.network_id) _validate_outputs(keychain, msg.outputs, msg.protocol_magic, msg.network_id)
_validate_certificates(msg.certificates, msg.protocol_magic, msg.network_id) _validate_certificates(msg.certificates, msg.protocol_magic, msg.network_id)
validate_auxiliary_data(msg.auxiliary_data) validate_auxiliary_data(msg.auxiliary_data)
@ -206,6 +207,7 @@ def _validate_stake_pool_registration_tx_structure(msg: CardanoSignTx) -> None:
def _validate_outputs( def _validate_outputs(
keychain: seed.Keychain,
outputs: list[CardanoTxOutputType], outputs: list[CardanoTxOutputType],
protocol_magic: int, protocol_magic: int,
network_id: int, network_id: int,
@ -229,11 +231,43 @@ def _validate_outputs(
) )
_validate_token_bundle(output.token_bundle) _validate_token_bundle(output.token_bundle)
_validate_max_tx_output_size(keychain, output, protocol_magic, network_id)
if total_amount > LOVELACE_MAX_SUPPLY: if total_amount > LOVELACE_MAX_SUPPLY:
raise wire.ProcessError("Total transaction amount is out of range!") raise wire.ProcessError("Total transaction amount is out of range!")
def _validate_max_tx_output_size(
keychain: seed.Keychain,
output: CardanoTxOutputType,
protocol_magic: int,
network_id: int,
) -> None:
"""
Output value size is currently limited to 4000 bytes at protocol level. Given
the maximum transaction size Trezor can handle (~9kB), we also want to enforce
this size limit here so that when the limit is raised at protocol level again,
Trezor would still not be able to produce larger outputs than it could
reliably spend. Once Cardano-transaction signing is refactored to be completely
streamed and maximum supported transaction size is thus raised, this limit can be lifted.
"""
cborized_output = _cborize_output(keychain, output, protocol_magic, network_id)
assert len(cborized_output) == 2
# only the output value is used for counting the size in cardano-ledger-specs
cborized_output_value = cborized_output[1]
serialized_output_chunks = cbor.encode_streamed(cborized_output_value)
serialized_output_size = 0
for chunk in serialized_output_chunks:
serialized_output_size += len(chunk)
if serialized_output_size > MAX_TX_OUTPUT_SIZE:
raise wire.ProcessError(
"Maximum tx output value size (%s bytes) exceeded!" % MAX_TX_OUTPUT_SIZE
)
def _validate_token_bundle(token_bundle: list[CardanoAssetGroupType]) -> None: def _validate_token_bundle(token_bundle: list[CardanoAssetGroupType]) -> None:
seen_policy_ids = set() seen_policy_ids = set()
for token_group in token_bundle: for token_group in token_bundle: