nestedencryption

noun
UK /ˈnɛstɪd ɪnˈkrɪpʃən/
US /ˈnɛstɪd ɛnˈkrɪpʃən/

Nested encryption is when you lock a secret message again and again with more than one key.

The spy used nested encryption so that even if someone cracked the first lock, the message stayed hidden.


OTHER MEANINGS

2. A computer security method where data is encrypted, then the result is encrypted again with a different key.

The backup system relies on nested encryption to protect sensitive files.

3. The practice of wrapping an encrypted file inside another encrypted container for extra safety.

She applied nested encryption before sending the archive over the network.

4. A layered protection scheme in which each encryption step must be undone in reverse order.

Recovering the data required peeling back the nested encryption one layer at a time.