Tag: AES-CBC

Safer Illinois, Isn’t

Wherein some furry casually saves a University tens of thousands of dollars on a NIST SP 800-171 audit they were doomed to fail anyway.

Tags AES-CBC, AES-CTR, AES-ECB, Bleichenbacher, contact tracing, COVID-19, cryptography, IND-CCA2, padding oracle, RSA, Safer Illinois, security, Vulnerability

Cryptography

Cryptographic Wear-Out for Symmetric Encryption

Post author By Soatok
Post date December 24, 2020
20 Comments on Cryptographic Wear-Out for Symmetric Encryption

As we look upon the sunset of a remarkably tiresome year, I thought it would be appropriate to talk about cryptographic wear-out. What is cryptographic wear-out? It’s the threshold when you’ve used the same key to encrypt so much data that you should probably switch to a new key before you encrypt any more. Otherwise, […]

Tags AES, AES-CBC, AES-GCM, birthday attack, birthday bound, cryptography, safety margin, Security Guidance, symmetric cryptography, symmetric encryption, wear-out