Keylength – Cryptographic Key Length Recommendation 10 years ago
I believe what was meant was a single key size measured in bits, not just a 0 or 1.
[ my public key: https://keybase.io/detter; my proof: https://keybase.io/detter/sigs/_2q7R7nMEnO1NHXFZ4zo7RN8SggBXmgrKlFnI0fsusM ]