; Crypto Keypath
crypto-keypath = {
    components: [0*10 path-component],
    ? source-fingerprint: uint32 .gt 0,
    ? depth: uint8
}

path-component = (
    child-index,
    is-hardened
)

uint8 = uint .size 1
uint32 = uint .size 4
uint31 = uint32 .lt 2147483648
child-index = uint31
is-hardened = bool
components = 1
source-fingerprint = 2
depth = 3

; Coin info
coininfo = {
    coin-type: uint31,
    network: int
}

coin-type = 1
network = 2

; Crypto HDKey
hd-key = {
    is-master: bool,
    is-private: bool,
    key-data: key-data-bytes,
    chain-code: chain-code-bytes,
    ? use-info: #6.305(coininfo),
    origin: #6.304(crypto-keypath),
    ;? children: #6.304(crypto-keypath),
    parent-fingerprint: uint32 .gt 0,
    name: text,
    source: text
}

is-master = 1
is-private = 2
key-data = 3
chain-code = 4
use-info = 5
origin = 6
children = 7
parent-fingerprint = 8
name = 9
source = 10

key-data-bytes = bstr .size 33
chain-code-bytes = bstr .size 32

; Crypto Multi Accounts
crypto-multi-accounts = {
    master-fingerprint: uint32,
    keys: [0*3 #6.303(hd-key)],
    ? device: text,
    ? device-id: device-id-str,
    ? version: text
}

master-fingerprint = 1
keys = 2
device = 3
device-id = 4
version = 5
device-id-str = bstr .size 20

; Sign data type
sign-data-type = eth-transaction-data / eth-typed-data / eth-raw-bytes / eth-typed-transaction

eth-transaction-data = 1
eth-typed-data = 2
eth-raw-bytes = 3
eth-typed-transaction = 4

; Eth Sign request
eth-sign-request = {
    ? request-id: uuid,
    sign-data: sign-data-bytes,
    data-type: sign-data-type,
    ? chain-id: int,
    derivation-path: #6.304(crypto-keypath),
    ? address: eth-address-bytes,
    ? request-origin: text
}

request-id = 1
sign-data = 2
data-type = 3
chain-id = 4
derivation-path = 5
address = 6
request-origin = 7
eth-address-bytes = bstr .size 20
sign-data-bytes = bstr
uuid = #6.37(bstr)

; Eth Signature
eth-signature = {
    ? request-id: uuid,
    signature: eth-signature-bytes,
    ? signature-origin: text,
}

signature = 2
signature-origin = 3

eth-signature-bytes = bstr