I am trying to make sense of how to handle and manage an initilization vector and salt (when applicable) when encrypting and decrypting data using a symmetric encryption algorithm, in this case AES...

I'm trying to encrypt some (cookie) data in C# and then decrypt it in PHP. I have chosen to use Rijndael encryption. I've almost got it working, except only part of the text is decrypted! I started...

I am using a AES encryption/decryption class that needs a key value and vector value encrypt and decrypt data in an MVC3 application. On saving the record I am encrypting the data then storing in ...

I'm looking for a very simple crypt / decrypt method. I will be using always the same static key. I'm aware of the risks of this approach. Currently I'm using the following code but it does not gen...

I'm attempting to futureproof some custom software that utilizes GPG (currently v 1.4.10) to perform symmetric encryption/decryption processes. My current encryption command looks like this: gpg -...

I'm wanting to encrypt some data (hopefully under five hundred bytes' worth) and store it in a QR code. Originally I wanted to use RSA, so the data would be signed with User A's private key and Use...

Can some point me in the right direction? I'd like to use JCE/JCA to derive a new key from a master secret key, How can I achieve this? Regards.

Use AES/Rijndael or any symmetric encryption. Encrypt the hidden value using itself as the key and a random IV. Store the ciphertext + IV. Discard everything else. To check the hash: try to decryp...

I'm new to implementing encryption and am still learning basics, it seems. I have need for symmetric encryption capabilities in my open source codebase. There are three components to this system: ...

Most of the information that I found and read about properly storing passwords in a database say that I should Hash the password clear text with a unique salt value for each user and then store tha...

OK, I'm probably just having a bad Monday, but I have the following need and I'm seeing lots of partial solutions but I'm sure I'm not the first person to need this, so I'm wondering if I'm missing...

So I am trying to store the symmetric key using DPAPI. All is well and great, but what to do with the entropy? This answered question here really doesn't provide enough insight. It seems like a sli...

Two clients Alice and Bob use a server to login and exchange messages through the server. On login, they both send their public keys to be stored on the server. When Alice wants to speak to Bob, sh...

It seems to be confusing Triple-DES (>128bit) with plain DES (64bit). I'm trying to encrypt a Derby database with Triple DES (or DESede) using Java 1.5 I found this discussion forum message about ...

I've the task to transfer small binary messages (1 or 2 kb long) between a desktop application and mobile devices. The messages should be encrypted asymmetrically (RSA for instance). From what I've...