Key length: The number of bits in a cryptographic key, which determines the strength and security of the key. It is commonly used in encryption algorithms to determine the level of security provided by the key. Examples include a key length of 128 bits, a key length of 192 bits, and a key length of 256 bits.

Key List: A key list is an inventory of cryptographic keys that includes important information such as key owners, associated assets, and usage policies. It is essential for managing and tracking the lifecycle of keys within an organization's cryptographic infrastructure to ensure proper key usage and facilitate security operations.

Keylogger: A type of software or hardware device used to track and record keystrokes on a computer or device. It is used to monitor user activity and capture sensitive information such as passwords and credit card numbers. Examples of keyloggers include malware-based keyloggers, hardware-based keyloggers, and keylogger software for parental control.

Key Management: The administrative process of handling and maintaining the lifecycle of cryptographic keys in a secure manner. This lifecycle includes key creation, distribution, storage, rotation, and disposal. Proper key management ensures that keys are only accessible to authorized entities, protecting encrypted data from unauthorized access and mitigating the potential impact of key compromise.

Key Management Infrastructure (KMI): A system or set of tools and protocols used to manage cryptographic keys within an organization. It is used to ensure the secure and efficient generation, distribution, storage, and revocation of keys used for encryption and authentication. Examples of KMI components include a key server, a key management application, and a certificate authority.

Key management practice: Key management practices are the specific guidelines and procedures followed by an organization to handle cryptographic keys securely. They include aspects like key generation, protection, storage, and destruction, and are crucial to prevent unauthorized access and to maintain the confidentiality and integrity of encrypted data.