OPSEC Cybersecurity News LiveFeb 24, 2023
GCM-SIV vs CBC with fixed IV?

https://crypto.stackexchange.com/questions/104360/gcm-siv-vs-cbc-with-fixed-iv

#initializationvector #encryption #aesgcm #aes #cbc
GCM-SIV vs CBC with fixed IV?

I keep hearing CBC with fixed IV mode is bad because it has similar issues to the codebook breakdown of ECB mode. However, people seem quite willing to recommend AES-GCM-SIV for deterministic encry...

Cryptography Stack Exchange
OPSEC Cybersecurity News LiveJan 9, 2023
Always set the IV to 0 randomized CBC

https://crypto.stackexchange.com/questions/103650/always-set-the-iv-to-0-randomized-cbc

#initializationvector #cbc
Always set the IV to 0 randomized CBC

Please explain what goes wrong if we always set the IV to 0 in randomized CBC, and use the system to encrypt two different messages m0 /= m1 with the same key k. I tried to find answer and read CBC...

Cryptography Stack Exchange