symmetric cryptography
A branch of cryptography in which a cryptographic system or algorithms use the same secret key (a shared secret key).
Senses
Sense 1
A branch of cryptography in which a cryptographic system or algorithms use the same secret key (a shared secret key).
References
- NICCS (CISA) Cybersecurity VocabularyJan 06, 2026NICCS glossary export (CSV)https://niccs.cisa.gov/rest/vocab/export-csvNICCS is a CISA (DHS) program. Individual glossary entries include a "From" attribution (e.g., CNSSI 4009, NIST SPs, NICE Framework). Treat "From" values as upstream provenance and verify before quoting large portions of text.Source: NICCS (CISA) Cybersecurity Vocabulary (niccs.cisa.gov).
Sense 2
Adversaries may employ a known symmetric encryption algorithm to conceal command and control traffic, rather than relying on any inherent protections provided by a communication protocol. Symmetric encryption algorithms use the same key for plaintext encryption and ciphertext decryption. Common symmetric encryption algorithms include AES, Blowfish, and RC4.
References
- MITRE ATT&CK (Mobile, CTI STIX Data)Jan 06, 2026MITRE ATT&CK CTI (STIX bundle)https://raw.githubusercontent.com/mitre-attack/attack-stix-data/master/mobile-attack/mobile-attack.jsonSee repository LICENSE.txt for ATT&CK terms: non-exclusive royalty-free license; reproduce MITRE copyright + license in copies. Verify requirements before publishing quoted text.Source: MITRE ATT&CK (attack-stix-data).