Is this wireshark capture using TLS 1.2 or 1.3?
Which version of TLS is being used here?
Continue reading Is this wireshark capture using TLS 1.2 or 1.3?
Author Archives: oliver
Comparing ACME client logs against Certificate Transparency logs
Inspired by this comment from Can DDNS provider perform a MITM attack?, I was wondering if there is an automated way to check the Certificate Transparency logs for malicious/unexpected certificates.
For example, if I run some ACME client o… Continue reading Comparing ACME client logs against Certificate Transparency logs
How are MFA mobile notifications implemented?
Consider mobile authentication applications, such as Microsoft Authenticator, Google Authenticator, and LastPass Authenticator. They all offer 6-digit MFA authentication, but this is not my focus; my focus is on notification verification, … Continue reading How are MFA mobile notifications implemented?
Irreversible encryption – difference to hash?
I keep reading the term "reversibly encrypted" and that confuses me because I thought that is kind of the point of encryption, that it can be decrypted.
I googled it, as a good student, and found this encyclopedia entry.
irrever… Continue reading Irreversible encryption – difference to hash?
Auto fill with bitwarden security question?
Hi guys,
I just started using bitwarden as a password manager and stumbled across a very confusing feature…
When I enable the password autofill feature (I know it’s called auto fill..but still…) I don’t even have to type in my passwo… Continue reading Auto fill with bitwarden security question?
Opal 2.0 motherboard compatibility
I need to know if my motherboard is Opal 2.0 compatible.
I have asked the question to it’s manufacturer but he answers that he doesn’t know, claiming that the tests to determine the Opal 2.0 compatibility haven’t been done (and probably wo… Continue reading Opal 2.0 motherboard compatibility
BIOS/UEFI update and BitLocker suspension [migrated]
I can read on many pages that when you update your BIOS/UEFI, you need to suspend BitLocker (for information, mine is configured to ask for a password at startup, no TPM in my machine).
But none of these pages tell on which devices you ha… Continue reading BIOS/UEFI update and BitLocker suspension [migrated]
How does BitLocker work when suspended? [closed]
I’m confused with the way BitLocker works.
I can read here :
The Suspend-BitLocker cmdlet suspends Bitlocker encryption, allowing
users to access encrypted data on a volume that uses BitLocker Drive
Encryption. This cmdlet makes … Continue reading How does BitLocker work when suspended? [closed]
SSD : Bitlocker and overprovisioning
If you use a SSD, with an overprovisioning partition created with the manfacturer’s tool, and use BitLocker to crypt the remaining drive partition you really use everyday, is there a way to get part of your datas through the overprovisioni… Continue reading SSD : Bitlocker and overprovisioning
What is Opale 2.0? [closed]
I can read on this page : https://www.crucial.fr/fra/fr/setup-ssd-encryption-via-bitlocker
“Opal 2.0 support: The system must support Opal 2.0 safety standards.
The Opal 2.0 standard is not backwards compatible. Cruci… Continue reading What is Opale 2.0? [closed]