QARMA implementatio...
 
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QARMA implementation

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passcodeunlock
(@passcodeunlock)
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Joined: 9 years ago
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I don't get something, please explain to me! Is your purpose exploiting this CPU for being able to do a decryped filesystem acquisition or you are after something else ?!


   
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(@tinybrain)
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Its about getting the NS bit on 0 to reach the respective ELx to get into the secure world of 855. This learning will help for other devices with ARMv8.3-A.


   
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passcodeunlock
(@passcodeunlock)
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So you want to exploit the TrustZone, all clear )


   
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(@trewmte)
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Funnily enough QARMA came up on a recent crypto discussion. There is a very interesting paper here if FF members/visitors might like to read it

Meet-in-the-Middle Attacks on Reduced-Round QARMA-64/128
Rongjia Li, Chenhui Jin
The Computer Journal, Volume 61, Issue 8, 1 August 2018, Pages 1158–1165

https://academic.oup.com/comjnl/article-abstract/61/8/1158/4993053


   
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(@tinybrain)
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I know I am late. I met these guys at Crypto 18 August 17-19 in Santa Barbara


   
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(@trewmte)
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I know I am late. I met these guys at Crypto 18 August 17-19 in Santa Barbara

Excellent. Was Rongjia Li, Chenhui Jin presenting and any additional facts stated not recorded in their paper?


   
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(@tinybrain)
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Crypto events are closed-door events for iacr.org members without online content after except Springer Link publications.


   
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(@tinybrain)
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QARMA is tweakable out of block ciphers. Its worth trying to learn to understand the element of tweakable. Crypto is easier than you think. Discrete Mathematics the basis.


   
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