multi-key cryptography

noun

UK /ˌmʌlti kiː krɪpˈtɒɡrəfi/

US /ˌmʌlti kiː krɪpˈtɑːɡrəfi/

A way to keep messages safe using more than one key.

The app uses multi-key cryptography so each family member can unlock the shared photo album with their own key.

SYNONYMS

multiple-key encryption multi-key encryption multi-key security plural-key cryptography

RELATED WORDS

encryption cipher public key private key key management

OTHER MEANINGS

2. A system where different keys give different levels of access to the same protected data.

With multi-key cryptography, the teacher can read all student files while each student can only open their own.

3. A method of encrypting data so that several keys are needed together to unlock it.

The vault used multi-key cryptography, requiring two of the three keys to open it.

4. The practice of managing several separate keys within one secure system.

Good multi-key cryptography keeps every key stored in its own safe place.