David McNett wrote:
It is a great privilege and we are excited to announce that at 13:25 GMT on 19-Oct-1997, we found the correct solution for RSA Labs RC5- 32/12/7 56-bit secret-key challenge. Confirmed by RSA Labs, the key 0x532B744CC20999 presented us with the plaintext message for which we have been searching these past 250 days.
The unknown message is: Its time to move to a longer key length
By coincidence, I happened to be surfing through some old CPUNX archives today, and came across the following:
From: Tim May Date: Wed, 22 Jan 1990 16:14:52 -0500 To: cypherpunks@toad.com
I bet if there was ever an RC5-32/12/7 56-bit secret key challenge, that the unknown message would be: "It's time to move to a longer key length."
Tim May "The Cypherpunks have shown their hand: They are going to start a mailing list."
How does he _do_ that?