bitsharesbase.account module

class bitsharesbase.account.Address(address, prefix=None)

Bases: graphenebase.account.Address

Address class.

This class serves as an address representation for Public Keys.

Parameters:

• address (str) – Base58 encoded address (defaults to None)
• pubkey (str) – Base58 encoded pubkey (defaults to None)
• prefix (str) – Network prefix (defaults to BTS)

Example:

Address("BTSFN9r6VYzBK8EKtMewfNbfiGCr56pHDBFi")

classmethod from_pubkey(pubkey, compressed=True, version=56, prefix=None)

Load an address provided the public key.

Version: 56 => PTS

prefix = 'BTS'

set_prefix(prefix)

class bitsharesbase.account.BrainKey(brainkey=None, sequence=0, prefix=None)

Bases: graphenebase.account.BrainKey

Brainkey implementation similar to the graphene-ui web-wallet.

Parameters:

• brainkey (str) – Brain Key
• sequence (int) – Sequence number for consecutive keys

Keys in Graphene are derived from a seed brain key which is a string of 16 words out of a predefined dictionary with 49744 words. It is a simple single-chain key derivation scheme that is not compatible with BIP44 but easy to use.

Given the brain key, a private key is derived as:

privkey = SHA256(SHA512(brainkey + " " + sequence))

Incrementing the sequence number yields a new key that can be regenerated given the brain key.

get_blind_private()

Derive private key from the brain key (and no sequence number)

get_brainkey()

Return brain key of this instance

get_private()

Derive private key from the brain key and the current sequence number

get_private_key()

get_public()

get_public_key()

next_sequence()

Increment the sequence number by 1

normalize(brainkey)

Correct formating with single whitespace syntax and no trailing space

prefix = 'BTS'

set_prefix(prefix)

static suggest()

Suggest a new random brain key. Randomness is provided by the operating system using os.urandom().

class bitsharesbase.account.PasswordKey(account, password, role='active', prefix=None)

Bases: graphenebase.account.PasswordKey

This class derives a private key given the account name, the role and a password.

It leverages the technology of Brainkeys and allows people to have a secure private key by providing a passphrase only.

get_private()

Derive private key from the brain key and the current sequence number

get_private_key()

get_public()

get_public_key()

prefix = 'BTS'

set_prefix(prefix)

class bitsharesbase.account.PrivateKey(wif=None, prefix=None)

Bases: graphenebase.account.PrivateKey

Derives the compressed and uncompressed public keys and constructs two instances of PublicKey:

Parameters:

• wif (str) – Base58check-encoded wif key
• prefix (str) – Network prefix (defaults to BTS)

Example::

PrivateKey("5HqUkGuo62BfcJU5vNhTXKJRXuUi9QSE6jp8C3uBJ2BVHtB8WSd")

Compressed vs. Uncompressed:

• PrivateKey("w-i-f").pubkey:

  Instance of PublicKey using compressed key.

• PrivateKey("w-i-f").pubkey.address:

  Instance of Address using compressed key.

• PrivateKey("w-i-f").uncompressed:

  Instance of PublicKey using uncompressed key.

• PrivateKey("w-i-f").uncompressed.address:

  Instance of Address using uncompressed key.

address

bitcoin

child(offset256)

Derive new private key from this key and a sha256 “offset”

compressed

derive_from_seed(offset)

Derive private key using “generate_from_seed” method. Here, the key itself serves as a seed, and offset is expected to be a sha256 digest.

derive_private_key(sequence)

Derive new private key from this private key and an arbitrary sequence number

get_secret()

Get sha256 digest of the wif key.

prefix = 'BTS'

pubkey

set_prefix(prefix)

uncompressed

class bitsharesbase.account.PublicKey(pk, prefix=None)

Bases: graphenebase.account.PublicKey

This class deals with Public Keys and inherits Address.

Parameters:

• pk (str) – Base58 encoded public key
• prefix (str) – Network prefix (defaults to BTS)

Example::

PublicKey("BTS6UtYWWs3rkZGV8JA86qrgkG6tyFksgECefKE1MiH4HkLD8PFGL")

Note

By default, graphene-based networks deal with compressed public keys. If an uncompressed key is required, the method unCompressed can be used:

PublicKey("xxxxx").unCompressed()

add(digest256)

Derive new public key from this key and a sha256 “digest”

address

Obtain a GrapheneAddress from a public key

child(offset256)

Derive new public key from this key and a sha256 “offset”

compressed()

returns the compressed key

compressed_key

classmethod from_privkey(privkey, prefix=None)

Derive uncompressed public key

point()

Return the point for the public key

prefix = 'BTS'

pubkey

set_prefix(prefix)

unCompressed()

Alias for self.uncompressed() - LEGACY

uncompressed()

Derive uncompressed key