Overview#

Key is a granted Privilege used by a lock (Policy Enforcement Point PEP) to provide Access to a Protected Resource

Key is used for locking or unlocking a Protected Resource

Key may be a physical Entity or a Digital Key or some combination of both.

Key may be an Cryptographic Key

NIST.SP.800-107#

Key is a parameter used with a cryptographic algorithm that determines its operation in such a way that an entity with knowledge of the key can reproduce or reverse the operation, while an entity without knowledge of the key cannot.

Examples applicable to this Recommendation include:

• The computation of a keyed-hash message authentication code.
• The verification of a keyed-hash message authentication code.
• The generation of a Digital Signature on a message.
• The verification of a Digital Signature.

More Information#

There might be more information for this subject on one of the following:

• AWS CloudHSM
• AWS Role
• Asymmetric cipher
• Authentication
• Block Cipher Mode
• CCM
• CTAP2
• Cipher
• Cipher-based Message Authentication Code
• Constrained Nodes
• Cryptanalysis
• Cryptographic Key
• Cryptographic Primitive
• DNC Decryption Flow
• Data Encapsulation Method
• Digital Key
• DirXML-NamedPasswords
• Encryption
• Hash Function
• Hybrid cryptosystem
• Hyperledger Indy
• Identifier
• Identity Custodian
• Kerberos Cryptosystem Negotiation Extension
• Kerberos Error Codes
• Kerberos Pre-Authentication
• Kerckhoffs principle
• Key
• Key Encapsulation Method
• Key Life cycle
• Key Management
• Key Management Service
• Key Rotation
• Key agreement
• Key pair
• Key size
• Key-Exchange
• Key-value
• KeyAgreement
• KeyEncipherment
• Keystore
• Lock
• Meet-in-the-Middle Attack
• Memorized secrets
• Metadata
• NICI
• NICISDI Keys
• NICISDITreeKeyProviderFaultTolerance
• NICITreeKeyProvider
• OAuth 2.0 Proof-of-Possession (PoP) Security Architecture
• Password Validator
• Password-authenticated Key Exchange
• Proof-of-Possession
• Roots of Trust
• Secret-key
• Security Domain Infrastructure
• Self-Sovereign Identity
• Server Storage Key
• Session Key
• Signatures with efficient protocols
• Signing key
• Symmetric Key Cryptography
• Symmetric cipher
• The Onion Router
• Token Binding Protocol
• Transport Layer Security
• TreeKey
• Trust No One
• Trusted Platform Module
• Tweakable Block Cipher
• USER_USE_AES_KEYS
• Universal Password
• Unkeyed Primitives
• User-Account-Control Attribute Values
• WX Entries
• WebAuthn Attestation
• Wi-Fi Protected Access 2