Term Kind Topic What it is
Crypto-Shredding Cryptographic Erasure, Key Destruction Deletion, Per-Subject Encryption pattern Data Lifecycle & Retention Encrypting each data subject's personal data under a key unique to them, so that a deletion request is satisfied by destroying the key rather than by rewriting immutable or widely-replicated data.
Identity-Record Separation Pseudonymous Subject Reference, Retention-Erasure Split pattern Data Lifecycle & Retention Holding regulated business records under a pseudonymous reference and the reference-to-person mapping in a separate governed store, so a retention obligation and an erasure right can both be satisfied.