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secp256r1

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

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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.

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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.

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Signing

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

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

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Encryption

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

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