COMMANDS.md

Boilerplate commands

Overview

Command name	INS	Description
GET_VERSION	0x03	Get application version as MAJOR, MINOR, PATCH
GET_APP_NAME	0x04	Get ASCII encoded application name
GET_PUBLIC_KEY	0x05	Get public key given BIP32 path
SIGN_TX	0x06	Sign transaction given BIP32 path and raw transaction

GET_VERSION

Command

CLA	INS	P1	P2	Lc	CData
0xE0	0x03	0x00	0x00	0x00	-

Response

Response length (bytes)	SW	RData
3	0x9000	MAJOR (1) || MINOR (1) || PATCH (1)

GET_APP_NAME

Command

CLA	INS	P1	P2	Lc	CData
0xE0	0x04	0x00	0x00	0x00	-

Response

Response length (bytes)	SW	RData
var	0x9000	APPNAME (var)

GET_PUBLIC_KEY

Command

CLA	INS	P1	P2	Lc	CData
0xE0	0x05	0x00 (no display) 0x01 (display)	0x00	1 + 4n	len(bip32_path) (1) || bip32_path{1} (4) || ... || bip32_path{n} (4)

Response

Response length (bytes)	SW	RData
var	0x9000	len(public_key) (1) || public_key (var) || len(chain_code) (1) || chain_code (var)

SIGN_TX

Command

CLA	INS	P1	P2	Lc	CData
0xE0	0x06	0x00-0x03 (chunk index)	0x00 (more) 0x80 (last)	1 + 4n	len(bip32_path) (1) || bip32_path{1} (4) || ... || bip32_path{n} (4)

Response

Response length (bytes)	SW	RData
var	0x9000	len(signature) (1) || signature (var) || v (1)

Status Words

SW	SW name	Description
0x6985	SW_DENY	Rejected by user
0x6A86	SW_WRONG_P1P2	Either P1 or P2 is incorrect
0x6A87	SW_WRONG_DATA_LENGTH	Lc or minimum APDU length is incorrect
0x6D00	SW_INS_NOT_SUPPORTED	No command exists with INS
0x6E00	SW_CLA_NOT_SUPPORTED	Bad CLA used for this application
0xB000	SW_WRONG_RESPONSE_LENGTH	Wrong response length (buffer size problem)
0xB001	SW_DISPLAY_BIP32_PATH_FAIL	BIP32 path conversion to string failed
0xB002	SW_DISPLAY_ADDRESS_FAIL	Address conversion to string failed
0xB003	SW_DISPLAY_AMOUNT_FAIL	Amount conversion to string failed
0xB004	SW_WRONG_TX_LENGTH	Wrong raw transaction length
0xB005	SW_TX_PARSING_FAIL	Failed to parse raw transaction
0xB006	SW_TX_HASH_FAIL	Failed to compute hash digest of raw transaction
0xB007	SW_BAD_STATE	Security issue with bad state
0xB008	SW_SIGNATURE_FAIL	Signature of raw transaction failed
0x9000	OK	Success