vizbase.account

Module Contents

class PasswordKey

Bases: graphenebase.account.PasswordKey

private-bases

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.

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class BrainKey

Bases: graphenebase.account.BrainKey

private-bases

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

param str brainkey

Brain Key

param int sequence

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.

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class Address

Bases: graphenebase.account.Address

private-bases

Address class.

This class serves as an address representation for Public Keys.

param str address

Base58 encoded address (defaults to None)

param str pubkey

Base58 encoded pubkey (defaults to None)

param str prefix

Network prefix (defaults to BTS)

Example:

Address("BTSFN9r6VYzBK8EKtMewfNbfiGCr56pHDBFi")

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class PublicKey

Bases: graphenebase.account.PublicKey

private-bases

This class deals with Public Keys and inherits Address.

param str pk

Base58 encoded public key

param str prefix

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()

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class PrivateKey

Bases: graphenebase.account.PrivateKey

private-bases

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

param str wif

Base58check-encoded wif key

param str prefix

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.

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