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Date: Mon, 30 Jan 2023 14:13:10 -0500
From: Demi Marie Obenour <>
To:, Solar Designer <>
Subject: Re: Data operand dependent timing on Intel and Arm

On Mon, Jan 30, 2023 at 10:43:16AM -0600, Mark Hack wrote:
> This is a concern, but if you look into the crypto implementations,
> data blinding is applied to mitigate both instruction and power side
> channel attacks

Can you provide examples?  I have never seen blinding used for symmetric
cryptography outside of embedded systems.
Demi Marie Obenour (she/her/hers)
Invisible Things Lab

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