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QARMA implementation

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(@tinybrain)
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Within SnapDrag 855 the ARMv8.3-A allows to implement PAC extensions. The QARMA-128 is a block cipher candidate. Is a cryptographer on FF testing this algo for the OnePlus 6 forensic evidence collection?

I still search for a cryptographer for knowledge-sharing on FF. Please respond. Toda.

 
Posted : 10/12/2018 10:16 am
(@cryptoguard)
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The OnePlus 6 runs the SnapDrag 845 with TrustZones. Do you need the biometric hashes e.g. FaceID to unlock the phone in custody?

 
Posted : 13/12/2018 8:12 am
(@tinybrain)
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Boker tov, Amiad

Nice to hear from you. Did you study at Technion as I did? Working for Gov and leading the quantumcrypto group I first need a proof of trust. Can you PM me your clearance?

 
Posted : 13/12/2018 9:20 am
(@cryptoguard)
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Did send, got yours

 
Posted : 13/12/2018 9:21 am
(@tinybrain)
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Nice you work for MOD, more important we share the same blood

 
Posted : 13/12/2018 9:23 am
(@cryptoguard)
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QARMA-128 fullfills most high-sec purposes, but I would focus on another ECC problem. Look first about the NIST curve.

 
Posted : 13/12/2018 9:27 am
(@tinybrain)
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Its not about the curve. The ARMv8.3 has a problem with stack smashing by code reuse, no injection required. Shall I send you the contact of Mark@ARM to get the entry point?

 
Posted : 13/12/2018 9:47 am
(@cryptoguard)
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I know Mark from Linux Security Summit personally. Will check about the original pointer (e.g. stack).

 
Posted : 13/12/2018 9:49 am
(@cryptoguard)
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The SnapDrag 845 features 8 Kryo 385 cores, 4 x A75 and 4 x A55, right? - Lets put away for the moment the SnapDrag 855 with PAC.

 
Posted : 13/12/2018 10:10 am
(@tinybrain)
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Correct, both based on ARMv8.2-A. But PACs are new in ARMv8.3-A. Compare these two architectures and you see how I want to access the OnePlus 6 with SnapDrag 845. Drop the differencies of Kryo xxx Silver and Gold, the A55 and A75 are sufficient.

 
Posted : 13/12/2018 10:14 am
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