Cryptographic key lifecycle refers to the stages a cryptographic key goes through from creation to destruction. Keys are essential for securing digital transactions and ensuring that only authorized users can access their assets.The lifecycle typically includes key generation, where unique keys are created. This process must ensure randomness and security to protect against unauthorized access.Next is key storage, where keys are securely held. This can involve hardware wallets, software solutions, or secure cloud services. Proper storage is crucial to prevent theft or loss.Key usage follows, where keys are employed to sign transactions or encrypt messages. This step should prioritize security to maintain the integrity of the transactions.Key rotation is also important, which involves changing keys periodically to enhance security. This minimizes the risk if a key is compromised.Finally, key destruction occurs when keys are no longer needed. Safe disposal methods ensure that the keys cannot be recovered or misused. Overall, managing the cryptographic key lifecycle effectively is essential for maintaining the security and trustworthiness of digital transactions.