des Questions
9
Solved
Does anyone have pros and cons together for comparing these encryption algorithms ?
3
Following Replicate T-SQL DecryptByPassPhrase in C#, I am unable to get a simple encryption with MSSQL to descrypt in C#. The encrypted values in certain columns is necessary because the table is e...
Abagail asked 10/2, 2014 at 18:7
1
Solved
I am taking a class in computer security, one of our assignments is to brute force DES that has a weak key.
My Code:
public static void main(String[] args) throws Exception {
String temp;
String...
Sheetfed asked 1/5, 2021 at 18:50
2
Solved
Currently trying to figure out why my decryption method is not working. I used DES, CBC, and PKCS7Padding to encrypt my string. My current code outputs panic: crypto/cipher: input not full blocks d...
3
Please note that the issue I am having here is with the key size. At first, based on the comments included in the below code, I figured that my key needed to be 24 bytes (192 bits). This didn't wor...
Apogee asked 9/8, 2011 at 0:51
7
Solved
I've written a DES implementation as an exercice and am now wondering if and where (triple-)DES is used today.
I've read about banking cards using it, but I can't find any reliable source for it.
...
1
Solved
I am using ExoPlayer to play Media files(mp4s .h264 encoded) from the SD card of a device. Some of the files are DES encrypted. I can decrypt the files and get back an inputStream, but then I am un...
Rags asked 5/2, 2015 at 17:30
2
Solved
I'm trying to authenticate DESFire card with my android application. I use the example in this link to decypher the bytes I got from the card. For that, I ruled out padding in decryption (commented...
2
Solved
I wrote a Java Card applet to do DES encryption/Decryption. The source code of my applet (If you want to use it, consider that Mr Bodewes found some bugs in this source code (those are mentioned in...
Recipience asked 10/5, 2015 at 11:15
1
Solved
I am implementing DES - CBC. I am confused as to what cipher.init, cipher.update and cipher.dofinal do. I just use init to set the key and dofinal to get the result. I don't use update. Is that cor...
Josefajosefina asked 9/11, 2014 at 2:16
3
Solved
I am trying to build an SRTP to RTP stream converter and I am having issues getting the Master Key from the WebRTC peerconnection I am creating.
From what I understand, with a DES exchange, the key...
Catechetical asked 27/3, 2014 at 15:25
1
Solved
This is a beginner question,
Every time I search on the internet, decrypt with DESCryptoServiceProvider function always returning a string.
How can we get byte[] for the return?
This is the c...
Continuous asked 23/7, 2014 at 6:47
2
Solved
I tried to implement DES algorithm using pyDes and Crypto.Cipher.DES modules. I found a problem that when I encrypt with 82514145 key and then decrypt the cipher with 93505044 I can retrieve the de...
Ranitta asked 22/4, 2014 at 9:53
2
Solved
Someone asked me to decrypt with PHP a string encrypted with the following Java Class.
public class CryptoLibrary {
private Cipher encryptCipher;
private sun.misc.BASE64Encoder encoder = new sun....
Indogermanic asked 24/4, 2012 at 14:38
3
I am currently completing a dissertation concerning the encryption of data through a variety of cryptographic algorithms.
I have spent much time reading journals and papers but as yet have been un...
Gunsel asked 10/4, 2012 at 19:2
1
Solved
so I'm trying to convert a Key into a string so I can display it with System.out, and then I want to convert it back to a Key. I am able to convert it to a string with BASE64Encoder, but I'm having...
6
Solved
What's the best way to calculate if a byte has odd or even parity in Ruby? I've got a version working:
result = "AB".to_i(16).to_s(2).count('1').odd?
=> true
Converting a number to a string ...
1
Solved
I have the following c# code that generates keys:
public static byte[] Encrypt(byte[] plainData, string salt)
{
DESCryptoServiceProvider DES = new DESCryptoServiceProvider();
DES.Key = ASCIIEn...
Graham asked 12/6, 2012 at 20:30
3
Solved
Does anyone have any examples of how to encrypt serialized data to a file and then read it back using DES?
I've written some code already that isn't working, but I'd rather see a fresh attempt ins...
Whitmer asked 8/6, 2009 at 13:56
1
I'm in the need of decrypting with PHP (or Javascript) some service calls. I've spent all the day trying to accomplish, this, but I've been unable to decrypt it properly.
As a reference, the servi...
Fredia asked 17/4, 2012 at 18:51
1
Solved
I have been able to create a RSA key protected by password with DES3 (well... I think because I'm very new to this encryption world) by using the command:
openssl genrsa -out "/tmp/myKey.pem" -pas...
Smudge asked 2/4, 2012 at 15:39
7
I would like to encrypt a textual (configuration) file stored on disk.
Trying to use DES encryption I've had fatal error on client machines, I later found out the algorithm could not handle accente...
Undistinguished asked 30/8, 2009 at 20:17
2
Solved
I convert the secretkey into bytes with following code
SecretKey key = KeyGenerator.getInstance("DES").generateKey();
byte[] bkey=key.getEncoded();
Now how do I get the key from bkey? I tried:
...
5
Solved
I am taking a course on Cryptography and am stuck on an assignment. The instructions are as follows:
The plaintext plain6.txt has been encrypted with DES to encrypt6.dat using a 64-bit key given...
Espouse asked 2/2, 2012 at 19:57
3
Solved
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...
Faiyum asked 27/1, 2012 at 9:56
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