Key And Public Key Addresses

BigBang Core system uses curve25519 as the basic security algorithm,the user's private key and public key are both 32 bytes, and the private key signature is 64 bytes. The security of curve25519 is the same as that of P256, which is the most efficient asymmetric security algorithm at present. Take the type prefix + public key as the wallet public key address.

In order to ensure the security of the user's private key, chacha20 and poly1305 algorithm is adopted to encrypt the local storage, and users
need to input the password before signing with the private key.