The process of encrypting individual files on a storage medium and permitting access to the encrypted data only after proper authentication is provided.
0
votes
1answer
65 views
Should I run my password through Bcrypt before using it for encrypting a file with AES-256? [duplicate]
I need to encrypt a file with a password that can be memorized. So I was thinking about running the password through some rounds of Bcrypt before using it for AES encryption, so every time I want to ...
-2
votes
1answer
109 views
How long does it take to crack a 100-letter long winrar password? [closed]
i´m interested in how long time it would take for a super computer dedicated to crack
to crack a 100-letter long winrar password. The password contains Lowercase, Uppercase, Digits, ...
-4
votes
2answers
129 views
FileZilla stored paswords get stolen [closed]
My FileZilla passwords has been stolen and used. How is this possible? FileZilla should store the passwords encrypted. I don't get it. I have only 6 months old version of FileZilla installed on my ...
2
votes
1answer
94 views
Can I properly make password-protected 7z archives secure?
After reading the question and answers of this and this, I left with an overall impression from the last one that zips were considered not safe and insecure way of sharing data.
I still think ...
-3
votes
0answers
41 views
DB filesystem encryption [closed]
This is very common question everyone has but important. Is there any best tool which encrypts filesystem? Here my requirement is even if we log in to db we should see encrypted data only. It should ...
10
votes
2answers
497 views
How to encrypt data on the server?
I have some data on the server (running Linux) which needs to be encrypted (company policy). This data is being served by an application running on this machine. Now I consider a few possibilities:
...
-4
votes
3answers
469 views
How long will it take to crack a 10-15 character winrar password? [closed]
Ok, long story short, I'm currious how long it would take an agency to crack a 10-15 character winrar password. The file names in the archive are also scrambled including a word at the start and ...
2
votes
1answer
146 views
TrueCrypt External Multimedia Hard Drive
Hi Guys i am in a bit of a Bind and cant find the Answer on the WWW so her is my question
I have a external Multi Media Hard Drive (1.36tb) so i made 4 partition a 350 gb
Then i shredded the free ...
5
votes
2answers
163 views
Microsoft Office 2013 File Encryption
To what extent can the native file encryption provided by Microsoft Office 2013 (Word, Powerpoint, Excel, etc.) be relied upon to maintain the confidentiality of documents, especially within the ...
2
votes
2answers
190 views
7zip AES encrypted archive, padding oracle attack
I created an encrypted but forgot the password. When I attempted a pattern based brute force it said it had over a 100 trillion passwords to check. And to my knowledge that could take a few years. ...
1
vote
2answers
224 views
Single File Encryption in a Windows Environment
Would it be correct to assume that encrypting a single file in a Windows environment, for example a simple text file containing login credentials for a variety of accounts, is inherently insecure?
It ...
1
vote
2answers
232 views
Password Protected Zip: if attacker had one file, can use it to decrypt all files?
Consider a folder containing the following files:
(file1.txt, file2.doc, file3.pdf) all zipped and password protected, if attacker had one of these file, can use it for decrypting all without knowing ...
4
votes
1answer
1k views
Brute Forcing Password to a Truecrypt-encrypted file with Partial Knowledge
A while back, I encrypted a few files with Truecrypt, and stored the password in my head. Now I need to access it again, the password isn't working. I'm sure most of it is right, but I'm off by one or ...
4
votes
2answers
431 views
After How Much Data Encryption (AES-256) we should change key?
Considering AES-256 encryption, what is the maximum amount of data should be encrypted with one key? Does Block cipher modes/IV/counters also governs the limit?
If say the maximum amount is 50GB, ...
2
votes
1answer
232 views
How to make a secure key distribution scheme/protocol?
We are building a data processing platform on Amazon AWS. We are going to store sensitive data in the S3 (encrypted) and then the Amazon EC2 node is going to be utilized to process this data. We are ...
2
votes
2answers
902 views
How get data from password protected rar file?
I want retrieve documents from a password protected rar file? I know brute force and dictionary method. Is there any other method to get data?
3
votes
3answers
319 views
Can email be encrypted before it reaches the mail server? If not, is there something that would allow something like this that's being worked on?
I was thinking about hosting my own email (own email server) instead of using Gmail. But then I realized I could never host my email on a server where I'm also hosting Wordpress. That is because I ...
1
vote
1answer
304 views
Windows 7 EFS - connot decrypt
I have some files on my laptop that were accidentally encrypted, I think by Visual Studio. I didn't even know that was possible. Anyway, the way I discovered they were encrypted was that I changed ...
1
vote
1answer
76 views
gpg encryption date or gpg version recoverable?
Is there a way to determine the date of encryption or the gpg version of a gpg-encrypted file (with symmetric encryption)?
I lost the password but some rough information about when the file was ...
-3
votes
2answers
73 views
Any good products that could crypt the files stored in laptops? [closed]
Thefts of laptops have become very common at my place, and losses
of sensitive information is a a major concern for my businesses.
So I wonder if there is any good products out there that could crypt ...
2
votes
2answers
288 views
WinZip encrypted file vs password protected file
How are password protected files and WinZip encrypted files different ?
For example - if i have a excel file to be sent.
Option 1 - I can send it as a password protected file.
Option 2 - Encrypt it ...
2
votes
1answer
140 views
smart AND secure cloud document archive
I am thinking of creating a cloud-based document archive. The intention is to make it impossible for the system to read the users' files, and be more than just a storage provider.
Looking at this ...
1
vote
2answers
137 views
Seeking lightweight encryption - shareable between Delphi & C
I want to encrypt a text file in Delphi & decrypt it, line by line, in C on an embedded system which does not have much RAM (so, only one line in RAM at a time).
FOSS must be available for both ...
6
votes
8answers
436 views
How do I secure patient data cheaply in a small doctor's office?
I am a single practitioner with 3 work stations and a server. What is the best cost effective way to secure my data and I suppose encrypt it. The gov't wants us to prevent any unsecure access to ...
0
votes
1answer
404 views
truecrypt second encryption of the master and XTS key with a back door password
this table was published by (Ubuntu Privacy Remix Team ), in an analysis document, anyway i was quite skeptical.
On file based containers as well as on completely encrypted partitions or drives ...
5
votes
1answer
153 views
Could a consumer-friendly PGP-like file encryption application theoretically be secure?
In a situation where there are desktop and mobile clients, and a central public key repository to and from which the desktop and mobile clients automatically upload and download public keys as needed, ...
1
vote
1answer
111 views
Is proper documentation on .xef files available anywhere?
WinACE encrypts files (using one of its 8 methods) into a file with the extension .xef. I'd want to see some documentation on this file format but I couldn't find anything...
I'm particularly ...
8
votes
6answers
2k views
Does password protecting an archived file actually encrypt it?
For example if I use WinRAR to encrypt a file and put a password on the archive how secure is it? I keep a personal journal and am thinking of doing this, or is there a better way? It's just one huge ...
1
vote
2answers
7k views
How to recover a lost zip file password
I have some files I was given by my teacher at University, I could chase him up, but I may as well try getting blood from a stone, his response rate isn't great and I completed my degree a year ago!
...
2
votes
3answers
394 views
Apple FileVault — would Apple build a backdoor?
Could Apple build a backdoor into it's FileVault encryption technology? Is that a risk you take of using a closed-source encryption product in general? Would using something like TrueCrypt be more ...
2
votes
2answers
3k views
Excel 2007 Encryption Strength
With a strong password of 10+ characters, mixed case, etc... Is the encryption of a Excel 2007 document secure enough to create reasonably strong defense against a brute force attack?
What encryption ...
3
votes
1answer
168 views
Is there a way to store user files without being able to decrypt them?
I'd want to build a secure file storage web application.
Currently ordinary password authentication is used for login. After login this password is used for encryption and decryption of user files at ...
5
votes
1answer
117 views
Should an app remove or encrypt locally stored user data after a user logs out?
I’ve been poking around in the Application Support folder of a popular app, trying to extract some chat logs. (By “popular”, I mean that most people reading this will have heard of it. I’m not sure if ...
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votes
1answer
161 views
About important hacks in history [closed]
I would like to know how important hacks happened, because I can figure out how they hacked a website but I can't figure out how did they hacked into NASA International Space Station source code. Or ...
2
votes
2answers
464 views
How to use 'key material' so that multiple people can access protected files?
I'm not sure if this is the right SE to ask this question, but it seems more I have a database of files that needs to be encrypted such that multiple people with different passwords/logins to this ...
1
vote
2answers
277 views
How secure is using this (p3 Python) module to encrypt a file?
I've recently been looking for a good (enough) method to encrypt files, and I came across this thing. It says that it's a
Simple p3 encryption "algorithm": it's just SHA used as a stream
cipher ...
0
votes
0answers
678 views
Where to find a compiled version of GPG.exe for Windows? [closed]
I've been looking through the GnuPG.org site, and many others to try and find a compiled version of GPG.exe for Windows.
I understand there is GPG4Win, however, I was looking for something a little ...
3
votes
3answers
2k views
TrueCrypt -vs- MacOS encrypted sparse image - equally secure? Other alternatives?
I'm currently trying to find my personal best solution for storing passwords and other sensible data. Recently I've used 1Password on iPhone and Mac but I'm not really satisfied with its predefined ...
6
votes
6answers
3k views
Good file encryption tools
Could you please help me find a good file encryption tool? The target OS is Linux, but tools for Windows are welcome, too. FOSS tools are preferred. The tool must be reliable both for the recovery of ...
5
votes
1answer
908 views
Device versus file based encryption in TrueCrypt for a flash drive?
Are there security tradeoffs to be considered in deciding between encrypting an entire flashdrive with TrueCrypt versus storing a file encrypted container? The security goal is to be immune to the ...
4
votes
4answers
201 views
How to securely delete a table in MS-Access?
I have a Windows 7 computer which currently has a large working Microsoft Access 2007 database on it containing some tables with confidential data. I would like to securely delete/remove the tables ...
1
vote
1answer
247 views
Should I mount my mac Truecrypt Volume elsewhere?
I've read in various places to not mount your truecrypt volume in the same place as your Dropbox or Sugarsync folder. I believe this only matter for Mac/Linux, but I need some verification.
On a Mac, ...
0
votes
1answer
357 views
How does FileVault 2 work with multiple decryption keys?
With FileVault 2, you can encrypt the hard-drive such that users on the computer can decrypt it with either of their passwords
How does this work?
6
votes
3answers
834 views
How secure are the password files used by Password Safe and Password Gorilla?
Password Safe and Password Gorilla are both programs to manage passwords. Both store a list of user passwords in a file, which is encrypted using a master password. They use the same file format, so ...
1
vote
1answer
1k views
What algorithm/encryption type does Gmail use for security?
In the wake of the recent database hacks, i.e. Sony, Gawker, etc.. where the hackers have access to the hashed usernames and passwords, i've been more keen in paying attention to the sites and ...
21
votes
5answers
1k views
Do spaces in a passphrase really add any more security/entropy?
I often see passphrase suggestions written as a sentence, with spaces. In that format are they more susceptible to a dictionary attack because each word is on it's own as opposed to a large unbroken ...
1
vote
1answer
1k views
Are there any reviews or user experiences with Secretsync?
I haven't been able to find much in the way of professional reviews for Secretsync - http://getsecretsync.com/ss/
But i'm wondering how it compares to Boxcryptor and Truecrypt. How secure is ...
5
votes
7answers
1k views
Verify the password of an encrypted file without waiting for complete decryption
I am currently working on an application that encrypts files with AES 256.
The problem is that I want the user to see whether the password is wrong before the file is decrypted.
For example if you ...
9
votes
3answers
2k views
What are you doing when you move your mouse randomly during a truecrypt volume creation?
Is that called a 'round' every time you move your mouse when creating a new volume? I'm talking about the screen with the random numbers during the volume creation process. What is the purpose of ...
5
votes
3answers
470 views
Will editing a Word file from a mounted Truecrypt volume leave any trace behind on the host computer?
I've heard that even if you have a Word document encrpyted (just using the built in Word encryption tools) and are editing it, it can still leave behind remnants of a file on the local computer in ...
