25 ms·

For Symmetric encryption, it says: 'Current key size: 112 bits' However the 3 linked examples, AES, ChaCha20 and Camellia all use a key size of at least 128 bi

For Symmetric encryption, it says: 'Current key size: 112 bits' However the 3 linked examples, AES, ChaCha20 and Camellia all use a key size of at least 128 bits, with 192 or 256 bits also listed as options. What does this current NIST key size recommendation (effective as of 2019) of 112 mean then? Does anyone use this size?

zokier 3y ago
112 bit effective key size almost certainly refers to 3des
upofadown 3y ago
That's pretty much for 3DES, which is disliked for other reasons. The point still stands though...