Recommended key size for life long key

[Johan Wevers]

On 31-8-2013 11:46, Ole Tange wrote:

> Why not recommend a key size that will not be broken for the rest of
> your natural life?

In that case, I assume 3072bit is sufficient. Making the public/secret
key a little stronger than the session keys (128 bit for most symmetric
ciphers) makes sense (breaking the secret key lets an attacker read all
messages, breaking a session key only one so the pubkey is more
valuable) but making it extremely much  stronger is useless. Attackers
will go for the weakest link in the chain.

-- 
Met vriendelijke groet / With kind regards,
Johan Wevers

PGP/GPG public keys at http://www.xs4all.nl/~johanw/pgpkeys.html