mirror of
https://github.com/bitcoinbook/bitcoinbook
synced 2024-11-16 04:59:35 +00:00
182 lines
5.5 KiB
Plaintext
182 lines
5.5 KiB
Plaintext
[[appdx_bx]]
|
|
[appendix]
|
|
|
|
== Bitcoin Explorer (bx) Commands
|
|
|
|
((("Bitcoin Explorer (bx) commands", id="BX18_1", range="startofrange")))Bitcoin Explorer (bx) is a command-line tool that offers a variety of commands for key management and transaction construction. It is part of the libbitcoin bitcoin library.
|
|
|
|
----
|
|
Usage: bx COMMAND [--help]
|
|
|
|
Info: The bx commands are:
|
|
|
|
address-decode
|
|
address-embed
|
|
address-encode
|
|
address-validate
|
|
base16-decode
|
|
base16-encode
|
|
base58-decode
|
|
base58-encode
|
|
base58check-decode
|
|
base58check-encode
|
|
base64-decode
|
|
base64-encode
|
|
bitcoin160
|
|
bitcoin256
|
|
btc-to-satoshi
|
|
ec-add
|
|
ec-add-secrets
|
|
ec-multiply
|
|
ec-multiply-secrets
|
|
ec-new
|
|
ec-to-address
|
|
ec-to-public
|
|
ec-to-wif
|
|
fetch-balance
|
|
fetch-header
|
|
fetch-height
|
|
fetch-history
|
|
fetch-stealth
|
|
fetch-tx
|
|
fetch-tx-index
|
|
hd-new
|
|
hd-private
|
|
hd-public
|
|
hd-to-address
|
|
hd-to-ec
|
|
hd-to-public
|
|
hd-to-wif
|
|
help
|
|
input-set
|
|
input-sign
|
|
input-validate
|
|
message-sign
|
|
message-validate
|
|
mnemonic-decode
|
|
mnemonic-encode
|
|
ripemd160
|
|
satoshi-to-btc
|
|
script-decode
|
|
script-encode
|
|
script-to-address
|
|
seed
|
|
send-tx
|
|
send-tx-node
|
|
send-tx-p2p
|
|
settings
|
|
sha160
|
|
sha256
|
|
sha512
|
|
stealth-decode
|
|
stealth-encode
|
|
stealth-public
|
|
stealth-secret
|
|
stealth-shared
|
|
tx-decode
|
|
tx-encode
|
|
uri-decode
|
|
uri-encode
|
|
validate-tx
|
|
watch-address
|
|
wif-to-ec
|
|
wif-to-public
|
|
wrap-decode
|
|
wrap-encode
|
|
----
|
|
|
|
For more information, see the https://github.com/libbitcoin/libbitcoin-explorer[Bitcoin Explorer homepage] and https://github.com/libbitcoin/libbitcoin-explorer/wiki[Bitcoin Explorer user documentation].
|
|
|
|
=== Examples of bx Command Use
|
|
|
|
Let's look at some examples of using Bitcoin Explorer commands to experiment with keys and addresses.
|
|
|
|
Generate a random "seed" value using the +seed+ command, which uses the operating system's random number generator. Pass the seed to the +ec-new+ command to generate a new private key. We save the standard output into the file _private_key_:
|
|
|
|
----
|
|
$ bx seed | bx ec-new > private_key
|
|
$ cat private_key
|
|
73096ed11ab9f1db6135857958ece7d73ea7c30862145bcc4bbc7649075de474
|
|
----
|
|
|
|
Now, generate the public key from that private key using the +ec-to-public+ command. We pass the _private_key_ file into the standard input and save the standard output of the command into a new file _public_key_:
|
|
|
|
----
|
|
$ bx ec-to-public < private_key > public_key
|
|
$ cat public_key
|
|
02fca46a6006a62dfdd2dbb2149359d0d97a04f430f12a7626dd409256c12be500
|
|
----
|
|
|
|
We can reformat the +public_key+ as an address using the +ec-to-address+ command. We pass the _public_key_ into standard input:
|
|
|
|
----
|
|
$ bx ec-to-address < public_key
|
|
17re1S4Q8ZHyCP8Kw7xQad1Lr6XUzWUnkG
|
|
----
|
|
|
|
Keys generated in this manner produce a type-0 nondeterministic wallet. That means that each key is generated from an independent seed. Bitcoin Explorer commands can also generate keys deterministically, in accordance with BIP-32. In this case, a "master" key is created from a seed and then extended deterministically to produce a tree of subkeys, resulting in a type-2 deterministic wallet.
|
|
|
|
First, we use the +seed+ and +hd-new+ commands to generate a master key that will be used as the basis to derive a hierarchy of keys:
|
|
|
|
----
|
|
$ bx seed > seed
|
|
$ cat seed
|
|
eb68ee9f3df6bd4441a9feadec179ff1
|
|
|
|
$ bx hd-new < seed > master
|
|
$ cat master
|
|
xprv9s21ZrQH143K2BEhMYpNQoUvAgiEjArAVaZaCTgsaGe6LsAnwubeiTcDzd23mAoyizm9cApe51gNfLMkBqkYoWWMCRwzfuJk8RwF1SVEpAQ
|
|
----
|
|
|
|
We now use the +hd-private+ command to generate a hardened "account" key and a sequence of two private keys within the account:
|
|
|
|
----
|
|
$ bx hd-private --hard < master > account
|
|
$ cat account
|
|
xprv9vkDLt81dTKjwHB8fsVB5QK8cGnzveChzSrtCfvu3aMWvQaThp59ueufuyQ8Qi3qpjk4aKsbmbfxwcgS8PYbgoR2NWHeLyvg4DhoEE68A1n
|
|
|
|
$ bx hd-private --index 0 < account
|
|
xprv9xHfb6w1vX9xgZyPNXVgAhPxSsEkeRcPHEUV5iJcVEsuUEACvR3NRY3fpGhcnBiDbvG4LgndirDsia1e9F3DWPkX7Tp1V1u97HKG1FJwUpU
|
|
|
|
$ bx hd-private --index 1 < account
|
|
xprv9xHfb6w1vX9xjc8XbN4GN86jzNAZ6xHEqYxzbLB4fzHFd6VqCLPGRZFsdjsuMVERadbgDbziCRJru9n6tzEWrASVpEdrZrFidt1RDfn4yA3
|
|
----
|
|
|
|
Next, we use the +hd-public+ command to generate the corresponding sequence of two public keys:
|
|
|
|
----
|
|
$ bx hd-public --index 0 < account
|
|
xpub6BH1zcTuktiFu43rUZ2gXqLgzu5F3tLEeTQ5t6iE3aQtM2VMTxMcyLN9fYHiGhGpQe9QQYmqL2eYPFJ3vezHz5wzaSW4FiGrseNDR4LKqTy
|
|
|
|
$ bx hd-public --index 1 < account
|
|
xpub6BH1zcTuktiFx6CzhPbGjG3UYQ13WR16CmtbPiagEKpEVtpyjshWyMaMV1cn7nUPUkgQHPVXJVqsrA8xWbGQDhohEcDFTEYMvYzwRD7Juf8
|
|
----
|
|
|
|
The public keys can also be derived from their corresponding private keys using the +hd-to-public+ command:
|
|
|
|
----
|
|
$ bx hd-private --index 0 < account | bx hd-to-public
|
|
xpub6BH1zcTuktiFu43rUZ2gXqLgzu5F3tLEeTQ5t6iE3aQtM2VMTxMcyLN9fYHiGhGpQe9QQYmqL2eYPFJ3vezHz5wzaSW4FiGrseNDR4LKqTy
|
|
|
|
$ bx hd-private --index 1 < account | bx hd-to-public
|
|
xpub6BH1zcTuktiFx6CzhPbGjG3UYQ13WR16CmtbPiagEKpEVtpyjshWyMaMV1cn7nUPUkgQHPVXJVqsrA8xWbGQDhohEcDFTEYMvYzwRD7Juf8
|
|
----
|
|
|
|
We can generate a practically limitless number of keys in a deterministic chain, all derived from a single seed. This technique is used in many wallet applications to generate keys that can be backed up and restored with a single seed value. This is easier than having to back up the wallet with all its randomly generated keys every time a new key is created.
|
|
|
|
The seed can be encoded using the +mnemonic-encode+ command:
|
|
|
|
----
|
|
$ bx hd-mnemonic < seed > words
|
|
adore repeat vision worst especially veil inch woman cast recall dwell appreciate
|
|
----
|
|
|
|
The seed can then be decoded using the +mnemonic-decode+ command:
|
|
|
|
----
|
|
$ bx mnemonic-decode < words
|
|
eb68ee9f3df6bd4441a9feadec179ff1
|
|
----
|
|
|
|
Mnemonic encoding can make the seed easier to record and even remember.(((range="endofrange", startref="BX18_1")))
|