encryption-symmetric Questions
3
Solved
I'm in a situation where I need to encrypt / decrypt a file of n length securely, ideally using Rijndael, but definitely at 256bit encryption.
I've played around with encryption before and have en...
Orcutt asked 28/7, 2010 at 8:56
1
Solved
I'm trying to convert below java code into nodejs.
public static String encrypt(String accessToken) throws Exception {
Cipher cipher = Cipher.getInstance("AES");
String merchantKey = "1111111111...
Subhuman asked 13/7, 2016 at 12:50
1
Solved
I have searched all this morning but I've found websites where it is said that data is sent through an asymmetric encryption using the TLS protocol
Then I found the contrary
Please can you tell me ...
Zelaya asked 13/6, 2016 at 13:25
3
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When i try to encrypt a string using encryption library by CI, the returned string is very big,around 178 chars long. Is there is any method to reduce the length of the string.
default cipher is: A...
Unroll asked 29/3, 2016 at 8:3
2
Solved
I was looking for libraries to implement an encryption system and was interested in using the NaCl: Networking and Cryptography library specifically the box function. Obviously, it uses symmetric e...
Schuyler asked 1/12, 2012 at 20:47
1
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I would appreciate clarification and advice on the following:
My project requires me to use symmetric data encryption (using AES), in a Nodejs environment, to secure data on a database (mongodb). ...
Grimbal asked 24/1, 2016 at 21:38
4
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I have been making heavy use of mcrypt in my php app for years, both on win/IIS and on linux. Although I'm running PHP 5.4.28 on my linux server, I just upgraded to PHP 5.6.11 on my windows 8.1 IIS...
Bloc asked 8/9, 2015 at 1:23
4
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I need a PHP function, AES256_encode($dataToEcrypt) to encrypt the $data into AES-256 and another one AES256_decode($encryptedData) do the opposite. Does anyone know what code should this functions...
Centromere asked 21/7, 2011 at 1:24
5
It seems like the most established ones like keyczar, cryptlib and NaCl are not available for Ruby. What are some ruby libraries (or bindings) for a high-level library where decisions about cryptog...
Doubling asked 10/3, 2012 at 6:28
4
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I'm investigating encryption algorithms - can someone give me a quick rundown of the differences between Rijndael and AES?
Illa asked 14/4, 2009 at 17:33
3
Solved
What is in Java a cipher function for integer encryption having these properties?:
Fast
Symmetric-key algorithm
Simple to use (i.e. a couple of lines of code to use it and no external library to...
Concert asked 26/4, 2015 at 16:8
3
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I am looking to apply SQL column level encryption using symmetric keys. The initial steps needed to create the Database Master Key, Certificates and Symmetric Keys seems straight forward and I have...
Thorstein asked 24/8, 2010 at 20:21
5
This is the scenario we have: We have huge encrypted files, in the order of gigabytes that we can decrypt correctly if we read them until the end.
The problem arises when we are reading and detect...
Morley asked 26/3, 2013 at 15:23
3
I am looking at the feasibility for using Chrome apps for the front end of some applications I am working on. (As an aside, if anyone has any thoughts on this - put it in the comments)
I would be ...
Aviles asked 5/5, 2013 at 11:18
1
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Finally I am posting my first question on StackOverflow. I'm using this site for years now and I always found great answers to all my questions :)
I am implementing a file encryption background da...
Pickax asked 9/5, 2015 at 9:52
2
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I have an app which is designed in C#. In simple terms the app sends data and image to my web server which takes all the $_POST data and processes it. I will confess i do not understand how the sec...
Lepidopterous asked 29/4, 2015 at 16:21
1
AWS's S3 SDK for Ruby allows for client-side ('envelope') encryption of the file. It's a combination of AES CBC/ECB encryption for the client-side key where the envelope key and initialization vect...
Polestar asked 21/4, 2015 at 22:47
1
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I am developing a Java cryptography application. I want to encrypt a file using symmetric algorithms such as AES or DES and store the secretKey in a database for future decryption of the file. I am...
Fraase asked 30/10, 2014 at 8:41
0
I am using Android to encrypt and encrypt images sent between apps.
The encryption works well but when the file arrives at the destination it will not decrypt. Now I have copied the file at the de...
Xmas asked 17/10, 2014 at 13:30
3
Solved
I'm trying to encrypt a string in Java on Android, and then decrypt it using PHP and/or node.js
I've tried http://www.androidsnippets.com/encrypt-decrypt-between-android-and-php, but only the first...
Kissel asked 25/6, 2012 at 13:15
11
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I need an algorithm that can do a one-to-one mapping (ie. no collision) of a 32-bit signed integer onto another 32-bit signed integer.
My real concern is enough entropy so that the output of the fu...
Talie asked 28/6, 2010 at 9:12
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
1
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In my application I am encrypting and decrypting data using secretKey. For that I am using AES algorithm. But I am getting exception in decrypt, one value out of three already encrypted values usin...
Gabe asked 10/7, 2013 at 10:13
1
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I've written an encryption routine built from several methods on the net. I'm currently testing the encryption and have noticed that every encrypted value end in '==' ?
Does anyone know why this ...
Abloom asked 19/6, 2013 at 15:39
5
Solved
I am looking for something more sophisticated than ROT13, but which does not require a library (preferablly not even a unit, just a drop in function).
I want to symetrically encrypt/decrypt a give...
Absorbing asked 19/1, 2013 at 7:3
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