👉 In cryptography, a "betokenment" is a cryptographic key used to encrypt and decrypt messages. It consists of two parts: the public part, which serves as the public exponent used for encryption, and the private part, which serves as the secret key used for decryption. Betokenments are commonly used in public-key cryptography systems like RSA, where they are used to generate a public/private key pair and then use that pair to encrypt and decrypt messages.