Keychain

The key ring (s) (a key ring) stands for:

• Collection of keys for opening locks
• Key (cryptology) , collection of cryptographic keys to encrypt and decrypt messages
• Keychain (software) , computer program in the macOS operating system

See also:

Wiktionary: Keychain  - explanations of meanings, word origins, synonyms, translations

This is a disambiguation page for differentiating between several terms identified with the same word.