Homomorphic Encryption
What is Homomorphic Encryption?
A form of encryption that permits computations on encrypted data without first decrypting it. Homomorphic encryption enables data to be processed in its encrypted form, preserving privacy while allowing analysis.
Terms that appear alongside homomorphic encryption
Each of these is named in at least one of the same controls as homomorphic encryption. The number is how many controls name both.
- encryption 3 shared controls
- differential privacy 2 shared controls
- privacy enhancing technologies pets 2 shared controls
Frameworks that govern homomorphic encryption
What the standards actually require on homomorphic encryption
Requirements naming homomorphic encryption across 5 standards, quoted from the control text.
Homomorphic encryption allows computation over encrypted data without first decrypting it, with partial schemes (additive or multiplicative) and fully homomorphic schemes (arbitrary computation).
ENISA-DPE-4.1 · Homomorphic encryption →Security Dimensions 4 and 5 per X.805 Clauses 6.4 and 6.5 are closely related: (1) Data Confidentiality (Dim 4) protects data from unauthorized disclosure - so that anyone without authorization is unable to make sense of the content.
X805-Dim4-5-Data-Confidentiality-Communication-Security-Encryption-Information-Flow-Protection · ITU-T X.805 Security Dimensions 4-5 - Data Confidentiality + Communication Security + Encryption At-Rest + In-Transit + In-Use + Information Flow Protection + Steered Communication + Anti-Tap + Anti-Eavesdrop + Post-Quantum Cryptography →Because Article 89(1) covers many methods and technologies, controllers may need safeguards beyond anonymisation or pseudonymisation, chosen for the risks of the method: governance structures such as internal or external review boards with data subject represe...
edpb-guidelines-1-2026-on-processing-of-personal-data-for-scientific-research-purposes::8.5 · 8.5 Select further safeguards fitted to the research method from the EDPB's menu: oversight governance, enhanced transparency, consent as a safeguard, strict purpose limits, PETs, secure environments, sharing rules, re-identification penalties, qualifications, training, publication protection, confidentiality →Apply Control-P function including: Control Policies (CT.PO-P) covering policies + plans + processes for privacy risk control; Data Management (CT.DM-P) covering data quality + retention + destruction + access + transmission + alteration + deletion + correctio...
NISTPF-3 · Control-P - Privacy Controls, Data Management, and Disassociated Processing →NSS owners must consult NSA before using any cryptography that CNSA 1.0, CNSA 2.0 and NSA's published guidance do not specify. The FAQ names areas with no generally approved NSS solution: private information retrieval, private set intersection, identity-based...
nsa-guidance-for-transition-to-quantum-resistant-cryptography::Q-NOVEL · Q-NOVEL Consult NSA before using cryptography CNSA does not specify; no lightweight ciphers →Questions people ask about homomorphic encryption
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