👉 tpk is a type of digital signature algorithm that uses elliptic curve cryptography. It was developed by the University of Washington, and it is one of the most widely used cryptographic algorithms today. TPK is based on the idea of using two public keys to sign messages, which are then encrypted with the private key. This allows for secure communication over multiple channels, as each channel can encrypt a different part of the message. TPK is particularly useful in applications where confidentiality and integrity are crucial, such