Skip to content

wallet.md

Latest commit

 

History

History
55 lines (39 loc) · 1.86 KB

wallet.md

File metadata and controls

55 lines (39 loc) · 1.86 KB

Wallet

A wallet consists of a private key and a corresponding public key. It allows you to sign contracts on the platform and essentially replaces username/password authentication.

Private keys

ECDSA is a cryptographic algorithm used by BGC to sign contracts.
BGC uses the secp256k1 elliptic curve.

A private key is a cryptographically secure random number between 1 and 2256 - 232 - 29 - 28 - 27 - 26 - 24 - 1.

This number must be stored securely.

Public keys

A public key is derived from the private key using ECDSA on the defined curve secp256k1.

Address

Here is an overview on how to generate a BGC address.

Step 1

Generate a private key.
36487317F7C3A171B8499114104A611CACB18E4FE03CB2BAB07C9B7C1AD83411

Step 2

Compute the public key.
04B047580BD5F1E6D2113FFFD79A86B968343D241D0E963AEC0CB6363388C089887029CE4B9275C8A4A836B8258A663FAEEBA2F99C9EBC714C3108AF347410BBBF

Step 3

Perform a SHA-256 hash on the public key.
D43E2A1B29E8E6FE84FD0C11FA627136FAD3AF27E6FFE8BA6FC16FA2067594C7

Step 4

Perform a RipeMD hash on the SHA-256 hash.
10292A5EB397372B47E6715C8F9418D7B0F8A3BB

Step 5

Add version byte in front of RipeMD hash (0x8A).
8A10292A5EB397372B47E6715C8F9418D7B0F8A3BB

Step 6

Perform double SHA-256 hash of the versioned hash (Step 5).
FB446099A2167287F02265E8BA2D8A460F13A4E35F437D53C525E331B541FC76

Step 7

Take the first 4 bytes of the double SHA-256 hash.
Checksum: FB446099

Step 8

Append checksum to the versioned hash from step 5.
8A10292A5EB397372B47E6715C8F9418D7B0F8A3BBFB446099
This is the 25 bytes address.

Step 9

Encode result to a Base58 string.
xZ7h1HUEcraAAHiJBqm1aDnr9nXJBh6yz8