[RC5] RC5 problem -- clients don't process blocks "[---

rc5 rc5 at xyzzy.com
Wed Jan 14 08:51:09 EST 1998


I am definitely NOT sharing blocks with a 2.7 client -- at least as far as
I understand. These are mostly Sun and SGI machines for which the 2.7 
clients 
do not yet exist. I didn't even log into the boxes and started getting 
reports
from the logs saying they were scanning a HUGE number of keys. They 
seemed to 
do this after the DES II contest started and they ran out of the RC5 keys 
they
had been processing and had to get more. The machines were just processing
what
the proxy gave them.

reb

At 11:00 PM 1/13/98 -0500, you wrote:
>**DO NOT** share buff-in.rc5 and buff-out.rc5 with the 2.7 clients. 
>The 2.64 clients will behave as you've described.
>
>Note that each of your clients' blocks has a zero for the 5th byte. 
>This means that you're getting 32 bit blocks instead of 28-bit blocks. 
>that probably means you're sharing with a 2.7 client.
>
>On Tue, 13 Jan 1998 21:27:10 -0500, rc5 wrote:
>
>>On all of my SGI and Sun boxes (which are still working on RC5-64 since
>>there is no DES-II client for them yet) I'm just racing on through blocks
>>of keys like crazy but my machines don't appear to be *doing* anything.
>>I saw this on NT/95 machines as well until I upgraded to the new client.
>>The machines download the blocks, think they've completed them and then
>>ship them back to the server. I have NOT touched the processes on these 
>>machines, so the only thing I can guess is that something the proxy
>>is sending is causing the clients to get confused. Log file portion
>>following this shows the machine thinking it finished 5 blocks in a
>>second...
>>
>>I'm concerned that this may cause us to *MISS* the missing block we're all
>>searching for. Are the clients getting confused and skipping blocks? It
>>sure looks like it. Advice, anyone?
>>
>>I'd think this was a fluke if I didn't see the same thing on ALL my 
>>clients!
>>
>>Please reply!
>>			reb
>>			rc5 at xyzzy.com
>>
>>
>>[01/14/98 01:03:46 GMT] The proxy says: "www.distributed.net is back up  
>>(davehart)"
>><<<<<
>>[01/14/98 01:04:09 GMT] Retrieved 5 block(s) from server
>>[01/14/98 01:04:09 GMT] Block: 66060C96:00000000 being processed
>>[01/14/98 01:04:09 GMT] 4 Blocks remain in file ./buff-in.rc5
>>[01/14/98 01:04:09 GMT] 0 Blocks are in file ./buff-out.rc5
>>[01/14/98 01:04:09 GMT] Total: 190 blocks 46:03:13.96 - [52220.61 
>>keys/sec]
>>
>>[01/14/98 01:04:09 GMT] Completed block 66060C96:00000000 (0 keys)
>>                        00:00:00.01 - [--- keys/sec]
>>[01/14/98 01:04:09 GMT] Block: 66060B66:00000000 being processed
>>[01/14/98 01:04:09 GMT] 3 Blocks remain in file ./buff-in.rc5
>>[01/14/98 01:04:09 GMT] 1 Blocks are in file ./buff-out.rc5
>>[01/14/98 01:04:09 GMT] Total: 191 blocks 46:03:13.96 - [52220.42 
>>keys/sec]
>>
>>[01/14/98 01:04:09 GMT] Completed block 66060B66:00000000 (0 keys)
>>                        00:00:00.01 - [--- keys/sec]
>>[01/14/98 01:04:09 GMT] Block: 66060A32:00000000 being processed
>>[01/14/98 01:04:09 GMT] 2 Blocks remain in file ./buff-in.rc5
>>[01/14/98 01:04:09 GMT] 2 Blocks are in file ./buff-out.rc5
>>[01/14/98 01:04:09 GMT] Total: 192 blocks 46:03:13.96 - [52220.22 
>>keys/sec]
>>
>>[01/14/98 01:04:09 GMT] Completed block 66060A32:00000000 (0 keys)
>>                        00:00:00.01 - [--- keys/sec]
>>[01/14/98 01:04:09 GMT] Block: 66060A2A:00000000 being processed
>>[01/14/98 01:04:09 GMT] 1 Blocks remain in file ./buff-in.rc5
>>[01/14/98 01:04:09 GMT] 3 Blocks are in file ./buff-out.rc5
>>[01/14/98 01:04:09 GMT] Total: 193 blocks 46:03:13.96 - [52220.02 
>>keys/sec]
>>
>>[01/14/98 01:04:09 GMT] Completed block 66060A2A:00000000 (0 keys)
>>                        00:00:00.01 - [--- keys/sec]
>>[01/14/98 01:04:09 GMT] Block: 66060A28:00000000 being processed
>>[01/14/98 01:04:09 GMT] 0 Blocks remain in file ./buff-in.rc5
>>[01/14/98 01:04:09 GMT] 4 Blocks are in file ./buff-out.rc5
>>[01/14/98 01:04:09 GMT] Total: 194 blocks 46:03:13.96 - [52219.82 
>>keys/sec]
>>
>
>
>Colin L. Hildinger
>------------------------------------------------------------------------
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>
>CRACK 64-bit RC5 WITH OS/2 NOW!
>http://www.ionet.net/~colin/rc5.html
>
>

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