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In cryptography, DEAL (Data Encryption Algorithm with Larger blocks) is a symmetric block cipher derived from the Data Encryption Standard (DES). The design was proposed in a report by Lars Knudsen in 1998, and was submitted to the AES contest by Richard Outerbridge (who notes that Knudsen had presented the design at the SAC conference in 1997).
DEAL is a Feistel network which uses DES as the round function. It has a 128-bit block size and a variable key size of either 128, 192, or 256 bits. For key sizes of 128 and 192 bits, the cipher uses 6 rounds, increasing to 8 for the 256-bits size. The scheme has a comparable performance to Triple DES, and was relatively slow compared to many other AES candidates.

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  1. W

    What the deal with this flush pipe to pan connecting plate?

    Want to change flush pipe while changing cistern. Would it likely seal if I just push another in (presuming the old one wants to come out.) And if it doesn't because something dislodges, tears etc.. on removing that plate thing what kind of seal is going to be inside, just a normal flush cone...
  2. Jay The Plumber

    Killer deal on wet vac - Screwfix

    use these for emptying rads without a drain off, cleaning up etc etc.. killer deal with £50 off ! http://www.NoLinkingToThis/p/karcher-wd3-p-1000w-17ltr-wet-dry-vacuum-cleaner-240v/91431
  3. U

    Brit Gas £400 trade it deal

    British Gas are really pushing this £400 trade in deal. But the deal is for Bosch, Valliant and Glow-worm boilers. I've just posted a message about my Halstead Best 60 boiler that I installed over 20 years ago, which is still working and has not missed a beat for hot water and heating...
  4. J

    Underground drainage problem i have to deal with

    I wouldnt normally do drainage of this type but its a big company i do work for so dont want to pass it on to Water leaking up through a concrete floor in part of the factory they know their waste water its all coloured water form the water based ink waste they pour down. So my plan is to dig...
  5. Best

    Fluidmaster Pro valves deal

    This is a Screwfix deal of the day (Tuesday only) I think. Side or bottom entry Fluidmaster Pro versions for £7.99. Fluidmaster Pro - Search Results | NoLinkingToThis
  6. Riley

    What is the deal with carbon monoxide and Smoke alarms

    Good morning all I have been tasked by one of my letting agents to ensure that their properties are all compliant with Septembers(?) regulation changes with regard to smoke and carbon monoxide alarms being fitted in letting properties. My understanding was a minimum of two smoke alarms...
  7. R

    Bye Bye Green Deal

    Government closes down £120m Green Deal scheme as funds runs out | This is Money Not overly surprising given the very low take up, just pleased I didn't spend a fortune getting acredited for it. I look forward to the next great thing!
  8. W

    Anyone had to deal with these muppets.

    Google alerts have just informed me that this web company: Coventry Plumbing and Heating in Coventry | Shopping-time.co.uk Are looking to make £1 per call to my number, connection fee! Anyone had any dealings with this site, if so, what's he best way to go about having them remove my info?
  9. cr0ft

    WTF how would you deal with this??

    Made the mistake of working for a complete bellend and agreeing to first fix a house for him. He is a groundworker who has never built a house before.. So on the first fix, he'd bought the soil pipe for the bathroom up inside the bathroom instead of outside for the toilet to run directly into...
  10. N

    green deal course

    looking to do my green deal course I have looked online and everyone is offering amazing deals, prices are massively different in price ranging from £499 up to £3k I spoke with a company today and they offered the whole package eda and gda package for just of £2000 is this expensive? if so...
  11. S

    Green Deal

    Is anyone using the green deal to fit boilers ( Not ECO )?
  12. S

    Green Deal / ECO

    Well finally got my full permission lending licence for green deal from the FCA only one of eight in the country! so all going well I will be a green deal provider from about march if anyone wants funding let me know!
  13. hammers4spanner

    green deal

    Am I right in reading that the green deal is back on this week?
  14. M

    How do you deal with going on holiday?

    The title says it, but it's mainly aimed at folks with staff, but where you are the thing that holds it all together. I have regular contracts and some staff, but when I go away it's the most stressful time ever. Who do you get to deal with things in your absence? martin
  15. W

    Aldi 18v combi deal today!!!!

    https://www.aldi.co.uk/en/specialbuys/sunday-30-november/
  16. R

    Sponsored thread - 36 hour deal on flushing machines

    Calflush powerflushing machine, 2 year warranty, promotional price £399 + VAT SAVE £50 if you order before midnight on Monday 6th Oct and pick one up for just £349 + VAT Calflush MAX powerflushing machine, 2 year warranty, promotional price £749 + VAT SAVE £100 if you order before midnight...
  17. Best

    Screwfix Deal of the Day

    Check out Screwfix Deal of the Day (ends midnight) - Danfoss TRV & Danfoss lockshield pair for £11 inc vat.
  18. R

    Deal of the day

    any one else got their £20 voucher from poofix? walked in today and got a free dewalt lunch box and wide jaw Bhaco for ............ £1.99 all in :) turned down the dewalt driver pack also as a bonus as that would mean i had to spend another £4.99 lol
  19. M

    Green Deal Installers

    Who have you used for the assesment and registration?? NICEIC seems to be the most popular, until now weve subbied a company for GD work - but would like to do it alone now - just finding out who paid the least amount for the registration/assesment.
  20. I

    How do you guys deal with the phone that doesn't stop ringing?

    I know it's an odd question, i just don't have the time these days, everyday is pretty busy ATM but I'm still missing(not answering) about 4 calls a day... i dont like to do it but i think it's better not to answer than try and run around crazy and possibly let folk down.. does this make sense...
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