11–20 of 69 posts
Well, in many cases AES keys are used one time, and there's also forward secrecy that guards it from decryption even if the key leaked.
Earlier quoted context omitted.
...how about a random-power-consumer? would it help?
Generally mitigations like adding random things only delay attacks like this, they don't prevent them. Like adding random timings won't prevent timing attacks, adding random sized strings won't prevent chosen plaintext or padding attacks, etc...
Earlier quoted context omitted.
...how about a random-power-consumer? would it help?
No, not at all. A raised SNR can be overcome in almost all circumstances by making more measurements, i.e. correlation, since noise is not correlated, it is removed. For the same reason random delays don't help against timing attacks.
Earlier quoted context omitted.
Generally mitigations like adding random things only delay attacks like this, they don't prevent them. Like adding random timings won't prevent timing attacks, adding random sized strings won't prevent chosen plaintext or padding attacks, etc...
Wonder if you can hash the cryto algorithm.
Earlier quoted context omitted.
...how about a random-power-consumer? would it help?
No, not at all. A raised SNR can be overcome in almost all circumstances by making more measurements, i.e. correlation, since noise is not correlated, it is removed. For the same reason random delays don't help against timing attacks.
Totally don't get it in the slightest.
Can someone ELI5 how this works? Would be much appreciated <3
If it is possible to be immune by design to power analysis, timing and tempest attacks, is there a list of such algorithms somewhere that I can look it up? My google-fu hasn't returned anything useful.
Are there any modern crypto algorithms that are, by design, immune from an attack such as this? Would not having any key-dependent code paths be sufficient to prevent this attack? If it is possible to be immune by design to power analysis, timing and tempest attacks, is there a list of such algorithms somewhere that I can look it up? My google-fu hasn't returned anything useful.