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#AES-GCM

2 articles with this tag.

Hybrid Functions Advanced

IPsec and IKEv2

IPsec protects IP traffic with ESP, and IKEv2 negotiates the keys. Learn the SKEYSEED key derivation, pre-shared-key authentication, and AES-GCM, with Python code checked against 280 of NIST's own known-answer test vectors.

Oct 24, 2026 26 min read

A visual representation of the AES-GCM Algorithm

Authenticated Encryption (AEAD) Intermediate

AES-GCM: Authenticated Encryption

AES-GCM does two jobs at once: it hides your data AND proves nobody tampered with it. Learn how Galois/Counter Mode combines AES with GHASH authentication to become the default choice for TLS, IPsec, and disk encryption.

Aug 4, 2026 10 min read

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