secp256r1

The most commonly used and well-supported Elliptic Curve is NIST P-256. This is an ECDSA method using the secp256r1 curve.

Seeding

LTO libraries use BIP39 with the English word list to create a seed phrase for the secp256k1 key type. BIP32 is used to generate the binary seed from the seed phrase.

BIP39 + BIP32 with secp256r1 is non-standard and not supported by mainstream wallets. It is safe when using hardened paths, but specific to LTO Network.

Signing

  • Created private key using the account seed 93d...S1v.

  • Create the corresponding coordinates for the public key and compress the public key.

Encryption

Encryption is done using ECIES Hybrid Encryption Scheme, which combines ECDSA with AES. It uses the same keys for encryption and signing.

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