33
votes
Alternatives to TrueCrypt?
VeraCrypt is an actively developed and maintained fork of TrueCrypt.
Pros:
Supported operating systems: Linux, Windows, OS X.
Open Source (Apache License 2.0).
Essentially identical interface to ...
- 431
5
votes
Client-side encryption for cloud storage
There is a free and basic tool called CryptSync which is something like a cross between 7Zip (for compression and encryption) and SynchToy (for scheduled synch).
You can synch compressed and ...
- 151
5
votes
Accepted
Encrypt my external hard disk (Linux + OS X + Windows)
Until a yearor two back, the definitive answer would have been TrueCrypt.
I still use it myself, but, as it is no longer actively developed, you might want to choose one of the forks, based on its ...
5
votes
Accepted
Software which can decrypt into 2 different files depending on the password?
i assume you are talking about Plausible deniability or to be more concrete Deniable encryption?
well, read a bit further to https://www.privacytools.io/#encrypt and there is VeraCrypt recommended...
...
- 1,636
4
votes
Accepted
App to encrypt and store all my photos online?
boxcryptor
Boxcryptor protects your files in the cloud no matter if you use Dropbox, Google Drive, Microsoft OneDrive, SugarSync, Box.net, or any other major cloud storage provider. It also supports ...
4
votes
Crossplatform encrypted file container alt for TrueCrypt?
VeraCrypt is a free, open source disk encryption software for Windows, Mac OS X and Linux. VeraCrypt can create a virtual encrypted disk within a file or encrypt a partition or storage device.
...
- 1,590
4
votes
Accepted
Portable encryption for USB flash drives
In the free arena, Veracrypt is still an excellent choice and is being maintained with both patches and improvements, and is cross-platform.
In the paid area, software like Checkpoint can do (for ...
4
votes
Java equivalent to Ruby's SecureRandom?
tl;dr
Integer.toHexString(
new SecureRandom().nextInt()
)
bd594090
JRuby
Run your Ruby code on a JVM with JRuby.
java.security.SecureRandom
Java includes SecureRandom, a cryptographically ...
- 3,108
3
votes
What software could deny access to a USB Drive, with an encryption password?
The default windows Bitlocker program which is available in windows vista and up is just fine see
a detailed tutorial here
http://www.howtogeek.com/192894/how-to-set-up-bitlocker-encryption-on-...
- 304
3
votes
Is there a lightweight library that can perform RSA-2048 encryption for an embedded application?
Yes, LibTomCrypt. LibTomCrypt implements most common cryptographic primitives (and many uncommon ones), including RSA (PKCS#1 v1.5, PSS and OAEP modes). The code is clean and portable C, so you can ...
3
votes
End-to-end encrypted calendar software
To the best of my knowledge, no good end-to-end encrypted calendar is available at the moment (Dec 2016). The only option I'm familiar with is with a Swedish private email company called https://www....
- 31
3
votes
bare metal crypto library
I'm going to assume that you only need the most standard capabilities and nothing fancy, so at most things like standard authenticated encryption primitives and thelike. No secret sharing, no format ...
- 273
3
votes
Alternatives to TrueCrypt?
I would also check out LibreCrypt,
LibreCrypt (Open Source)
Transparent on-the-fly disk encryption for Windows. LUKS compatible. (formerly DoxBox)
Features
Easy to use, with a 'wizard' for creating ...
- 7,594
3
votes
Video/audio chat programs that offer end-to-end encryption that do not let the service know of the content?
tox:
Tox began a few years ago, in the wake of Edward Snowden's leaks
regarding NSA spying activity. The idea was to create an instant
messaging protocol that ran without any kind of central ...
- 840
3
votes
On-the-fly encryption solution for external drive
Western Digital Passport external USB drives use hardware encryption, no need to use software. Here's a 3TB one from Amazon for $120usd. But beware, if the drive breaks you won't be able to get the ...
- 218
3
votes
Accepted
Encrypted external disk, with no need to enter password each time
You can use LUKS encryption for your external hard drive.
Anytime you plug in the drive, Ubuntu automonts the drive and directly asks for the password. Showing you an option when to forget it:
...
- 774
3
votes
Git files encryption to protect the source code from theft
Have a look at Keybase app. The feature includes built-in encrypted chat and signed git hosting. It is free, open source and available for macOS, iOS, Android, Linux, and Windows.
Run the app, then ...
- 2,957
2
votes
Alternatives to TrueCrypt?
I'm using free version of Cryptic Disk, which supports TrueCrypt containers, and offers a lot of more features such as advanced UI, hotkeys, mount/unmount scripts, etc.
- 121
2
votes
Is there a symmetric encryption GUI available for Ubuntu/Linux?
EncryptPad
Open source and free. It encrypts binary (non-textual) files (second screenshot below) but works even better with text because it has a built-in editor. It edits text without saving ...
- 156
2
votes
Encrypt then sync your files to ANY cloud storage as secured offsite backup?
It could be well worth taking a look at git-annex - you mark the remote storage for one of several types of encryption and it will sync your files as and when.
Currently, August 2015, built in ...
- 31.3k
2
votes
Software for determining known text cipher type and key
Detection and identification
While it is possible to identify a cryptographic algorithm by way of cipher bit sequences, you should know that it can be difficult and (more important) reverse-...
- 1,524
2
votes
Portable, no-admin, no-install, Win/Linux USB encryption/decryption on the go
The way you want the program to work is deeply flawed concerning protection of the files, as they would stay decrypted on the USB drive until the encryption program is run again.
Instead, the way to ...
- 671
2
votes
Accepted
Software tool for practical XOR comparisons (ASCII and HEX)
There is Cryptool, an open source project with the goal of teaching cryptography.
I am using Cryptool 2. It can e.g. calculate XOR results as shown below. Unfortunately it doesn't really work well ...
- 9,756
2
votes
Alternative to UnRAR.dll
How about SharpCompress? It's a library that would allow you to unrar rar files. It's open source and can be found on GitHub.
SharpCompress
SharpCompress is a compression library for .NET/Mono/...
- 7,594
2
votes
Accepted
Is there a secure group chat available today?
Now as for the security side of things, I cannot openly advise you on this. Here is a brief list of programs you can use.
I will not go into details about protocols etc.; I'll leave this all for you ...
- 1,462
2
votes
End-to-end encrypted calendar software
Disclaimer: I'm the developer of the product mentioned in this answer. I did not post earlier as I misread the question to be absolutely limited to open source.
If you're searching for a solution for ...
- 21
2
votes
Open source self-hosted encrypted chat system
Use ChatSecure, run up your own XMPP server, OTR protocol.
Downside here is that it does not meet your preferences:
Is not available natively through web;
OTR uses 128-bit long keys.
Alterntaviely ...
- 1,462
2
votes
Client-side encryption for cloud storage
Maybe PanBox. Their Github page claims that
You can download the manual for PanBox from www.panbox.org, which fits
for the Windows, Linux and Android version.
The download page references GPLed ...
- 740
2
votes
Accepted
Backup program for encrypted data for linux
i'm not 100% sure if it hits all your requirement but Déjà Dup is definitively worth a look:
it uses duplicity/rsync as backend
use local, external or network-storage (ssh, ftp, WebDAV, smb, etc.)
...
- 1,636
2
votes
Software which can decrypt into 2 different files depending on the password?
Not quite what you are looking for but you could use Steganography to hide your really sensitive data in the picture of the cat, (possibly after encrypting the text data itself), and then encrypt the ...
- 31.3k
Only top scored, non community-wiki answers of a minimum length are eligible