Collaborate Disseminate
Example:
Bob uploads a file to my custom file server locked with a password, which then the file server generates a link for him to share
Bob wants to be able to share this data to anyone that has this link
Bob doesn’t want anyone but t… Continue reading How to securely encrypt shared data for a dynamic amount of users?
I’m a newbie in this field so forgive me in advance if this question is stupid in anyway.
Say we have a software that is executing on our system and encrypting files using a secret key that is not known to us. Is it possible to somehow gai… Continue reading Is it possible to extract encryption keys from software executing on your own system?
Recent ransomware events often include data theft in addition to just encrypting data. The Encrypting File System on Windows Pro/Enterprise editions encrypts individual files using a private key stored alongside certificates for that user … Continue reading Does EFS protect against data theft by ransomware?
Assuming you have the user protected PDF file. Using the password, the cryptographic key is generated and the file encrypted. Where is the key stored, is it on the RAM every time the file is opened?
Does Wire employ encryption of data at rest?
I generally consider Signal and Wire to be the best tools today for sending information privately between two parties. Both meet the marks on crypto, open-source, 3rd party audits, PFS via the d… Continue reading Does Wire encrypt data-at-rest in their apps?
A few months ago I reset my Windows password but my keyboard must have had a sticky key or two, effectively changing my password to an unknown password. Out of desperation and a little research I used PCUnlocker to forcefully reset my pass… Continue reading Crack Windows 10 password with Cain and Able
Although this question has been answered in this link (After How Much Data Encryption (AES-256) we should change key?), I am not satisfied with the answers because the Recommendation for Block Cipher Modes of Operation: Galois/Counter Mode… Continue reading How much data can we encrypt using AES 256 before changing the key? [migrated]
Is there any good backup software that can encrypt backups before sending them off to a cloud service, s3 like storage? Previously there was spideroak and jungledisk. They have either gone saas or been discontented.
In present day are th… Continue reading zero knowledge backup software [closed]
Is there any good backup software that can encrypt backups before sending them off to a cloud service, s3 like storage? Previously there was spideroak and jungledisk. They have either gone saas or been discontented.
In present day are th… Continue reading zero knowledge backup software [closed]
I’m trying to copy EFS-encrypted files from an NTFS partition using:
ntfsdecrypt -k mycert.pfx /dev/sda2 -i 32768
and I get:
Key does not have an EFS purpose OID
Failed to extract the private RSA key.
More info:
The password is indeed c… Continue reading ntfsdecrypt – Key does not have an EFS purpose OID