👉 In cryptography, a coexclusive secret (also known as a coe or a coe-secret) is a type of secret sharing protocol that involves two parties who share the same secret but do not want to reveal it. This can be useful for secure communication between parties who have different encryption keys and need to exchange information in a way that protects both their confidentiality and integrity. In a coexclusive secret protocol, each party has a "coe" (coefficient) or a "secret" (
