Generating Implicit Certificates
Initially the elliptic curve parameters must be agreed upon. We define as a generating point of order . The Certificate Authority (CA) will have private key and public key . Alice will be the user who requests the implicit certificate from the CA.
- Alice generates a random integer and computes and sends that to the CA. The CA does all the rest.
- CA Select a random integer from and computes .
- CA computes (this is the implicit certificate)
- CA computes, where is a cryptographic hash function, such as SHA and is Alice's identifying information.
- CA computes
- CA sends to Alice
Alice’s private key is
Alice’s public key is
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