I think forward security is the equivalent of temporal security, in a sense. You can't give anything from past, unless you saved it. The problem it does need se

I think forward security is the equivalent of temporal security, in a sense. You can't give anything from past, unless you saved it. The problem it does need secure key exchange, which only work over low latency networks, and low latency anonymity networks, like TOR , have their limits. In a similar fashion , i'm not sure how key exchange for temporal security will work over mail. Regarding multiple keys: Using multiple emails/nym accounts gives you that.