The process of generating one or more cryptographic keys from a single master key or passphrase is known as key derivation. It uses mathematical algorithms, such as key stretching and key expansion, to generate unique and safe keys for various purposes or users.
In different cryptographic systems, such as password-based encryption and hierarchical deterministic wallets in cryptocurrencies, key derivation is critical for securely storing encryption keys and maintaining data secrecy.
A key pair is made up of two cryptographic keys, one public and one private, that are used in asymmetric encryption systems. The public key is freely disseminated and used to encrypt data or verify digital signatures, whereas the private key is kept hidden and used to decrypt data or create digital signatures.
KYC is an abbreviation for "Know Your Customer." Businesses and financial institutions use it to verify and collect information about their clients' identities and financial activity.