* Reject not replay-protected tx to prevent replay attack Closes: #1122 - reject such txs in ante handler * add reject unprotected parameter * Update CHANGELOG.md * Apply suggestions from code review Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> * pr suggestions * add unit test case * Reject not replay-protected tx to prevent replay attack Closes: #1122 - reject such txs in ante handler add reject unprotected parameter Update CHANGELOG.md Apply suggestions from code review Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> pr suggestions add unit test case use var * add migrations * Apply suggestions from code review Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com> * rename * update comments Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>
40 KiB
Protobuf Documentation
Table of Contents
ethermint/crypto/v1/ethsecp256k1/keys.proto
PrivKey
PrivKey defines a type alias for an ecdsa.PrivateKey that implements Tendermint's PrivateKey interface.
Field | Type | Label | Description |
---|---|---|---|
key |
bytes |
PubKey
PubKey defines a type alias for an ecdsa.PublicKey that implements Tendermint's PubKey interface. It represents the 33-byte compressed public key format.
Field | Type | Label | Description |
---|---|---|---|
key |
bytes |
ethermint/evm/v1/evm.proto
AccessTuple
AccessTuple is the element type of an access list.
Field | Type | Label | Description |
---|---|---|---|
address |
string | hex formatted ethereum address | |
storage_keys |
string | repeated | hex formatted hashes of the storage keys |
ChainConfig
ChainConfig defines the Ethereum ChainConfig parameters using *sdk.Int values instead of *big.Int.
Field | Type | Label | Description |
---|---|---|---|
homestead_block |
string | Homestead switch block (nil no fork, 0 = already homestead) | |
dao_fork_block |
string | TheDAO hard-fork switch block (nil no fork) | |
dao_fork_support |
bool | Whether the nodes supports or opposes the DAO hard-fork | |
eip150_block |
string | EIP150 implements the Gas price changes (https://github.com/ethereum/EIPs/issues/150) EIP150 HF block (nil no fork) | |
eip150_hash |
string | EIP150 HF hash (needed for header only clients as only gas pricing changed) | |
eip155_block |
string | EIP155Block HF block | |
eip158_block |
string | EIP158 HF block | |
byzantium_block |
string | Byzantium switch block (nil no fork, 0 = already on byzantium) | |
constantinople_block |
string | Constantinople switch block (nil no fork, 0 = already activated) | |
petersburg_block |
string | Petersburg switch block (nil same as Constantinople) | |
istanbul_block |
string | Istanbul switch block (nil no fork, 0 = already on istanbul) | |
muir_glacier_block |
string | Eip-2384 (bomb delay) switch block (nil no fork, 0 = already activated) | |
berlin_block |
string | Berlin switch block (nil = no fork, 0 = already on berlin) | |
london_block |
string | London switch block (nil = no fork, 0 = already on london) | |
arrow_glacier_block |
string | Eip-4345 (bomb delay) switch block (nil = no fork, 0 = already activated) | |
merge_fork_block |
string | EIP-3675 (TheMerge) switch block (nil = no fork, 0 = already in merge proceedings) |
Log
Log represents an protobuf compatible Ethereum Log that defines a contract log event. These events are generated by the LOG opcode and stored/indexed by the node.
Field | Type | Label | Description |
---|---|---|---|
address |
string | address of the contract that generated the event | |
topics |
string | repeated | list of topics provided by the contract. |
data |
bytes | supplied by the contract, usually ABI-encoded | |
block_number |
uint64 | block in which the transaction was included | |
tx_hash |
string | hash of the transaction | |
tx_index |
uint64 | index of the transaction in the block | |
block_hash |
string | hash of the block in which the transaction was included | |
index |
uint64 | index of the log in the block | |
removed |
bool | The Removed field is true if this log was reverted due to a chain reorganisation. You must pay attention to this field if you receive logs through a filter query. |
Params
Params defines the EVM module parameters
Field | Type | Label | Description |
---|---|---|---|
evm_denom |
string | evm denom represents the token denomination used to run the EVM state transitions. | |
enable_create |
bool | enable create toggles state transitions that use the vm.Create function | |
enable_call |
bool | enable call toggles state transitions that use the vm.Call function | |
extra_eips |
int64 | repeated | extra eips defines the additional EIPs for the vm.Config |
chain_config |
ChainConfig | chain config defines the EVM chain configuration parameters | |
reject_unprotected_tx |
bool | reject replay-unprotected transactions |
State
State represents a single Storage key value pair item.
Field | Type | Label | Description |
---|---|---|---|
key |
string | ||
value |
string |
TraceConfig
TraceConfig holds extra parameters to trace functions.
Field | Type | Label | Description |
---|---|---|---|
tracer |
string | custom javascript tracer | |
timeout |
string | overrides the default timeout of 5 seconds for JavaScript-based tracing calls | |
reexec |
uint64 | number of blocks the tracer is willing to go back | |
disable_stack |
bool | disable stack capture | |
disable_storage |
bool | disable storage capture | |
debug |
bool | print output during capture end | |
limit |
int32 | maximum length of output, but zero means unlimited | |
overrides |
ChainConfig | Chain overrides, can be used to execute a trace using future fork rules | |
enable_memory |
bool | enable memory capture | |
enable_return_data |
bool | enable return data capture |
TransactionLogs
TransactionLogs define the logs generated from a transaction execution with a given hash. It it used for import/export data as transactions are not persisted on blockchain state after an upgrade.
Field | Type | Label | Description |
---|---|---|---|
hash |
string | ||
logs |
Log | repeated |
TxResult
TxResult stores results of Tx execution.
Field | Type | Label | Description |
---|---|---|---|
contract_address |
string | contract_address contains the ethereum address of the created contract (if any). If the state transition is an evm.Call, the contract address will be empty. | |
bloom |
bytes | bloom represents the bloom filter bytes | |
tx_logs |
TransactionLogs | tx_logs contains the transaction hash and the proto-compatible ethereum logs. | |
ret |
bytes | ret defines the bytes from the execution. | |
reverted |
bool | reverted flag is set to true when the call has been reverted | |
gas_used |
uint64 | gas_used notes the amount of gas consumed while execution |
ethermint/evm/v1/genesis.proto
GenesisAccount
GenesisAccount defines an account to be initialized in the genesis state. Its main difference between with Geth's GenesisAccount is that it uses a custom storage type and that it doesn't contain the private key field.
Field | Type | Label | Description |
---|---|---|---|
address |
string | address defines an ethereum hex formated address of an account | |
code |
string | code defines the hex bytes of the account code. | |
storage |
State | repeated | storage defines the set of state key values for the account. |
GenesisState
GenesisState defines the evm module's genesis state.
Field | Type | Label | Description |
---|---|---|---|
accounts |
GenesisAccount | repeated | accounts is an array containing the ethereum genesis accounts. |
params |
Params | params defines all the parameters of the module. |
ethermint/evm/v1/tx.proto
AccessListTx
AccessListTx is the data of EIP-2930 access list transactions.
Field | Type | Label | Description |
---|---|---|---|
chain_id |
string | destination EVM chain ID | |
nonce |
uint64 | nonce corresponds to the account nonce (transaction sequence). | |
gas_price |
string | gas price defines the value for each gas unit | |
gas |
uint64 | gas defines the gas limit defined for the transaction. | |
to |
string | hex formatted address of the recipient | |
value |
string | value defines the unsigned integer value of the transaction amount. | |
data |
bytes | input defines the data payload bytes of the transaction. | |
accesses |
AccessTuple | repeated | |
v |
bytes | v defines the signature value | |
r |
bytes | r defines the signature value | |
s |
bytes | s define the signature value |
DynamicFeeTx
DynamicFeeTx is the data of EIP-1559 dinamic fee transactions.
Field | Type | Label | Description |
---|---|---|---|
chain_id |
string | destination EVM chain ID | |
nonce |
uint64 | nonce corresponds to the account nonce (transaction sequence). | |
gas_tip_cap |
string | gas tip cap defines the max value for the gas tip | |
gas_fee_cap |
string | gas fee cap defines the max value for the gas fee | |
gas |
uint64 | gas defines the gas limit defined for the transaction. | |
to |
string | hex formatted address of the recipient | |
value |
string | value defines the the transaction amount. | |
data |
bytes | input defines the data payload bytes of the transaction. | |
accesses |
AccessTuple | repeated | |
v |
bytes | v defines the signature value | |
r |
bytes | r defines the signature value | |
s |
bytes | s define the signature value |
ExtensionOptionsEthereumTx
LegacyTx
LegacyTx is the transaction data of regular Ethereum transactions. NOTE: All non-protected transactions (i.e non EIP155 signed) will fail if the RejectUnprotectedTx parameter is enabled.
Field | Type | Label | Description |
---|---|---|---|
nonce |
uint64 | nonce corresponds to the account nonce (transaction sequence). | |
gas_price |
string | gas price defines the value for each gas unit | |
gas |
uint64 | gas defines the gas limit defined for the transaction. | |
to |
string | hex formatted address of the recipient | |
value |
string | value defines the unsigned integer value of the transaction amount. | |
data |
bytes | input defines the data payload bytes of the transaction. | |
v |
bytes | v defines the signature value | |
r |
bytes | r defines the signature value | |
s |
bytes | s define the signature value |
MsgEthereumTx
MsgEthereumTx encapsulates an Ethereum transaction as an SDK message.
Field | Type | Label | Description |
---|---|---|---|
data |
google.protobuf.Any | inner transaction data |
caches |
| size
| double | | encoded storage size of the transaction |
| hash
| string | | transaction hash in hex format |
| from
| string | | ethereum signer address in hex format. This address value is checked against the address derived from the signature (V, R, S) using the secp256k1 elliptic curve |
MsgEthereumTxResponse
MsgEthereumTxResponse defines the Msg/EthereumTx response type.
Field | Type | Label | Description |
---|---|---|---|
hash |
string | ethereum transaction hash in hex format. This hash differs from the Tendermint sha256 hash of the transaction bytes. See https://github.com/tendermint/tendermint/issues/6539 for reference | |
logs |
Log | repeated | logs contains the transaction hash and the proto-compatible ethereum logs. |
ret |
bytes | returned data from evm function (result or data supplied with revert opcode) | |
vm_error |
string | vm error is the error returned by vm execution | |
gas_used |
uint64 | gas consumed by the transaction |
Msg
Msg defines the evm Msg service.
Method Name | Request Type | Response Type | Description | HTTP Verb | Endpoint |
---|---|---|---|---|---|
EthereumTx |
MsgEthereumTx | MsgEthereumTxResponse | EthereumTx defines a method submitting Ethereum transactions. | POST | /ethermint/evm/v1/ethereum_tx |
ethermint/evm/v1/query.proto
EstimateGasResponse
EstimateGasResponse defines EstimateGas response
Field | Type | Label | Description |
---|---|---|---|
gas |
uint64 | the estimated gas |
EthCallRequest
EthCallRequest defines EthCall request
Field | Type | Label | Description |
---|---|---|---|
args |
bytes | same json format as the json rpc api. | |
gas_cap |
uint64 | the default gas cap to be used |
QueryAccountRequest
QueryAccountRequest is the request type for the Query/Account RPC method.
Field | Type | Label | Description |
---|---|---|---|
address |
string | address is the ethereum hex address to query the account for. |
QueryAccountResponse
QueryAccountResponse is the response type for the Query/Account RPC method.
Field | Type | Label | Description |
---|---|---|---|
balance |
string | balance is the balance of the EVM denomination. | |
code_hash |
string | code hash is the hex-formatted code bytes from the EOA. | |
nonce |
uint64 | nonce is the account's sequence number. |
QueryBalanceRequest
QueryBalanceRequest is the request type for the Query/Balance RPC method.
Field | Type | Label | Description |
---|---|---|---|
address |
string | address is the ethereum hex address to query the balance for. |
QueryBalanceResponse
QueryBalanceResponse is the response type for the Query/Balance RPC method.
Field | Type | Label | Description |
---|---|---|---|
balance |
string | balance is the balance of the EVM denomination. |
QueryBaseFeeRequest
QueryBaseFeeRequest defines the request type for querying the EIP1559 base fee.
QueryBaseFeeResponse
BaseFeeResponse returns the EIP1559 base fee.
Field | Type | Label | Description |
---|---|---|---|
base_fee |
string |
QueryCodeRequest
QueryCodeRequest is the request type for the Query/Code RPC method.
Field | Type | Label | Description |
---|---|---|---|
address |
string | address is the ethereum hex address to query the code for. |
QueryCodeResponse
QueryCodeResponse is the response type for the Query/Code RPC method.
Field | Type | Label | Description |
---|---|---|---|
code |
bytes | code represents the code bytes from an ethereum address. |
QueryCosmosAccountRequest
QueryCosmosAccountRequest is the request type for the Query/CosmosAccount RPC method.
Field | Type | Label | Description |
---|---|---|---|
address |
string | address is the ethereum hex address to query the account for. |
QueryCosmosAccountResponse
QueryCosmosAccountResponse is the response type for the Query/CosmosAccount RPC method.
Field | Type | Label | Description |
---|---|---|---|
cosmos_address |
string | cosmos_address is the cosmos address of the account. | |
sequence |
uint64 | sequence is the account's sequence number. | |
account_number |
uint64 | account_number is the account numbert |
QueryParamsRequest
QueryParamsRequest defines the request type for querying x/evm parameters.
QueryParamsResponse
QueryParamsResponse defines the response type for querying x/evm parameters.
Field | Type | Label | Description |
---|---|---|---|
params |
Params | params define the evm module parameters. |
QueryStorageRequest
QueryStorageRequest is the request type for the Query/Storage RPC method.
Field | Type | Label | Description |
---|---|---|---|
address |
string | address is the ethereum hex address to query the storage state for. | |
key |
string | key defines the key of the storage state |
QueryStorageResponse
QueryStorageResponse is the response type for the Query/Storage RPC method.
Field | Type | Label | Description |
---|---|---|---|
value |
string | key defines the storage state value hash associated with the given key. |
QueryTraceBlockRequest
QueryTraceBlockRequest defines TraceTx request
Field | Type | Label | Description |
---|---|---|---|
txs |
MsgEthereumTx | repeated | txs messages in the block |
trace_config |
TraceConfig | TraceConfig holds extra parameters to trace functions. | |
block_number |
int64 | block number | |
block_hash |
string | block hex hash | |
block_time |
google.protobuf.Timestamp | block time |
QueryTraceBlockResponse
QueryTraceBlockResponse defines TraceBlock response
Field | Type | Label | Description |
---|---|---|---|
data |
bytes |
QueryTraceTxRequest
QueryTraceTxRequest defines TraceTx request
Field | Type | Label | Description |
---|---|---|---|
msg |
MsgEthereumTx | msgEthereumTx for the requested transaction | |
trace_config |
TraceConfig | TraceConfig holds extra parameters to trace functions. | |
predecessors |
MsgEthereumTx | repeated | the predecessor transactions included in the same block need to be replayed first to get correct context for tracing. |
block_number |
int64 | block number of requested transaction | |
block_hash |
string | block hex hash of requested transaction | |
block_time |
google.protobuf.Timestamp | block time of requested transaction |
QueryTraceTxResponse
QueryTraceTxResponse defines TraceTx response
Field | Type | Label | Description |
---|---|---|---|
data |
bytes | response serialized in bytes |
QueryTxLogsRequest
QueryTxLogsRequest is the request type for the Query/TxLogs RPC method.
Field | Type | Label | Description |
---|---|---|---|
hash |
string | hash is the ethereum transaction hex hash to query the logs for. | |
pagination |
cosmos.base.query.v1beta1.PageRequest | pagination defines an optional pagination for the request. |
QueryTxLogsResponse
QueryTxLogs is the response type for the Query/TxLogs RPC method.
Field | Type | Label | Description |
---|---|---|---|
logs |
Log | repeated | logs represents the ethereum logs generated from the given transaction. |
pagination |
cosmos.base.query.v1beta1.PageResponse | pagination defines the pagination in the response. |
QueryValidatorAccountRequest
QueryValidatorAccountRequest is the request type for the Query/ValidatorAccount RPC method.
Field | Type | Label | Description |
---|---|---|---|
cons_address |
string | cons_address is the validator cons address to query the account for. |
QueryValidatorAccountResponse
QueryValidatorAccountResponse is the response type for the Query/ValidatorAccount RPC method.
Field | Type | Label | Description |
---|---|---|---|
account_address |
string | account_address is the cosmos address of the account in bech32 format. | |
sequence |
uint64 | sequence is the account's sequence number. | |
account_number |
uint64 | account_number is the account number |
Query
Query defines the gRPC querier service.
Method Name | Request Type | Response Type | Description | HTTP Verb | Endpoint |
---|---|---|---|---|---|
Account |
QueryAccountRequest | QueryAccountResponse | Account queries an Ethereum account. | GET | /ethermint/evm/v1/account/{address} |
CosmosAccount |
QueryCosmosAccountRequest | QueryCosmosAccountResponse | CosmosAccount queries an Ethereum account's Cosmos Address. | GET | /ethermint/evm/v1/cosmos_account/{address} |
ValidatorAccount |
QueryValidatorAccountRequest | QueryValidatorAccountResponse | ValidatorAccount queries an Ethereum account's from a validator consensus Address. | GET | /ethermint/evm/v1/validator_account/{cons_address} |
Balance |
QueryBalanceRequest | QueryBalanceResponse | Balance queries the balance of a the EVM denomination for a single EthAccount. | GET | /ethermint/evm/v1/balances/{address} |
Storage |
QueryStorageRequest | QueryStorageResponse | Storage queries the balance of all coins for a single account. | GET | /ethermint/evm/v1/storage/{address}/{key} |
Code |
QueryCodeRequest | QueryCodeResponse | Code queries the balance of all coins for a single account. | GET | /ethermint/evm/v1/codes/{address} |
Params |
QueryParamsRequest | QueryParamsResponse | Params queries the parameters of x/evm module. | GET | /ethermint/evm/v1/params |
EthCall |
EthCallRequest | MsgEthereumTxResponse | EthCall implements the eth_call rpc api |
GET | /ethermint/evm/v1/eth_call |
EstimateGas |
EthCallRequest | EstimateGasResponse | EstimateGas implements the eth_estimateGas rpc api |
GET | /ethermint/evm/v1/estimate_gas |
TraceTx |
QueryTraceTxRequest | QueryTraceTxResponse | TraceTx implements the debug_traceTransaction rpc api |
GET | /ethermint/evm/v1/trace_tx |
TraceBlock |
QueryTraceBlockRequest | QueryTraceBlockResponse | TraceBlock implements the debug_traceBlockByNumber and debug_traceBlockByHash rpc api |
GET | /ethermint/evm/v1/trace_block |
BaseFee |
QueryBaseFeeRequest | QueryBaseFeeResponse | BaseFee queries the base fee of the parent block of the current block, it's similar to feemarket module's method, but also checks london hardfork status. | GET | /ethermint/evm/v1/base_fee |
ethermint/feemarket/v1/feemarket.proto
Params
Params defines the EVM module parameters
Field | Type | Label | Description |
---|---|---|---|
no_base_fee |
bool | no base fee forces the EIP-1559 base fee to 0 (needed for 0 price calls) | |
base_fee_change_denominator |
uint32 | base fee change denominator bounds the amount the base fee can change between blocks. | |
elasticity_multiplier |
uint32 | elasticity multiplier bounds the maximum gas limit an EIP-1559 block may have. | |
enable_height |
int64 | height at which the base fee calculation is enabled. | |
base_fee |
string | base fee for EIP-1559 blocks. | |
min_gas_price |
string | min_gas_price defines the minimum gas price value for cosmos and eth transactions | |
min_gas_multiplier |
string | min gas denominator bounds the minimum gasUsed to be charged to senders based on GasLimit |
ethermint/feemarket/v1/genesis.proto
GenesisState
GenesisState defines the feemarket module's genesis state.
Field | Type | Label | Description |
---|---|---|---|
params |
Params | params defines all the paramaters of the module. | |
block_gas |
uint64 | block gas is the amount of gas wanted on the last block before the upgrade. Zero by default. |
ethermint/feemarket/v1/query.proto
QueryBaseFeeRequest
QueryBaseFeeRequest defines the request type for querying the EIP1559 base fee.
QueryBaseFeeResponse
BaseFeeResponse returns the EIP1559 base fee.
Field | Type | Label | Description |
---|---|---|---|
base_fee |
string |
QueryBlockGasRequest
QueryBlockGasRequest defines the request type for querying the EIP1559 base fee.
QueryBlockGasResponse
QueryBlockGasResponse returns block gas used for a given height.
Field | Type | Label | Description |
---|---|---|---|
gas |
int64 |
QueryParamsRequest
QueryParamsRequest defines the request type for querying x/evm parameters.
QueryParamsResponse
QueryParamsResponse defines the response type for querying x/evm parameters.
Field | Type | Label | Description |
---|---|---|---|
params |
Params | params define the evm module parameters. |
Query
Query defines the gRPC querier service.
Method Name | Request Type | Response Type | Description | HTTP Verb | Endpoint |
---|---|---|---|---|---|
Params |
QueryParamsRequest | QueryParamsResponse | Params queries the parameters of x/feemarket module. | GET | /ethermint/feemarket/v1/params |
BaseFee |
QueryBaseFeeRequest | QueryBaseFeeResponse | BaseFee queries the base fee of the parent block of the current block. | GET | /ethermint/feemarket/v1/base_fee |
BlockGas |
QueryBlockGasRequest | QueryBlockGasResponse | BlockGas queries the gas used at a given block height | GET | /ethermint/feemarket/v1/block_gas |
ethermint/types/v1/account.proto
EthAccount
EthAccount implements the authtypes.AccountI interface and embeds an authtypes.BaseAccount type. It is compatible with the auth AccountKeeper.
Field | Type | Label | Description |
---|---|---|---|
base_account |
cosmos.auth.v1beta1.BaseAccount | ||
code_hash |
string |
ethermint/types/v1/web3.proto
ExtensionOptionsWeb3Tx
Field | Type | Label | Description |
---|---|---|---|
typed_data_chain_id |
uint64 | typed data chain id used only in EIP712 Domain and should match Ethereum network ID in a Web3 provider (e.g. Metamask). | |
fee_payer |
string | fee payer is an account address for the fee payer. It will be validated during EIP712 signature checking. | |
fee_payer_sig |
bytes | fee payer sig is a signature data from the fee paying account, allows to perform fee delegation when using EIP712 Domain. |
Scalar Value Types
.proto Type | Notes | C++ | Java | Python | Go | C# | PHP | Ruby |
---|---|---|---|---|---|---|---|---|
double | double | double | float | float64 | double | float | Float | |
float | float | float | float | float32 | float | float | Float | |
int32 | Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint32 instead. | int32 | int | int | int32 | int | integer | Bignum or Fixnum (as required) |
int64 | Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint64 instead. | int64 | long | int/long | int64 | long | integer/string | Bignum |
uint32 | Uses variable-length encoding. | uint32 | int | int/long | uint32 | uint | integer | Bignum or Fixnum (as required) |
uint64 | Uses variable-length encoding. | uint64 | long | int/long | uint64 | ulong | integer/string | Bignum or Fixnum (as required) |
sint32 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int32s. | int32 | int | int | int32 | int | integer | Bignum or Fixnum (as required) |
sint64 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int64s. | int64 | long | int/long | int64 | long | integer/string | Bignum |
fixed32 | Always four bytes. More efficient than uint32 if values are often greater than 2^28. | uint32 | int | int | uint32 | uint | integer | Bignum or Fixnum (as required) |
fixed64 | Always eight bytes. More efficient than uint64 if values are often greater than 2^56. | uint64 | long | int/long | uint64 | ulong | integer/string | Bignum |
sfixed32 | Always four bytes. | int32 | int | int | int32 | int | integer | Bignum or Fixnum (as required) |
sfixed64 | Always eight bytes. | int64 | long | int/long | int64 | long | integer/string | Bignum |
bool | bool | boolean | boolean | bool | bool | boolean | TrueClass/FalseClass | |
string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode | string | string | string | String (UTF-8) |
bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str | []byte | ByteString | string | String (ASCII-8BIT) |