Tagged Questions

Encryption is the process of transforming information (called plaintext) using an algorithm (called cipher) to make it unreadable to anyone except those with special knowledge (often called a key). Conceptual questions about encryption may get better answers on crypto.stackexchange.com.

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How do I decrypt and encrypt Joomla user password for Java program?

I have programed a Java program which has access to my MySQL database. Currently I am using Joomla as CMS, therefore I would like to program my Java program so it is able to check the user data(of ...
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AES 128 encryption/decryption using Random salt and Initialization vector

Is it possible to encrypt/decrypt a value using AES 128, base 64 decoding, random salt and initialization vector? If so can someone share me the useful links.
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ProtectedConfigurationProvider using Rsa and certificate

I'm new to this so please bear with me. I'm trying to encrypt/decrypt a .config section using RsaProtectedConfigurationProvider Please correct me if I'm wrong but from what i've been reading I need ...
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How to verify a file signed with signapk.jar in java under android

I'm using signapk.jar to sign a tbz file with my own key file, like this: java -Xms2048m -Xmx2048m -jar ${root_path}/android/out/host/linux-x86/framework/signapk.jar -w ...
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1answer
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Custom ClassLoader uses secret key to decrypt pre-encrypted class files (which had been encrypted with the secret key)

How can you protect/encrypt your Java classes? I've been reading some articles on java.lang.ClassLoader and one PDF article Understanding the Java ClassLoader suggested that I could use a custom ...
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RSA Encryption via C# privatekey xml access

I used this article RSA Encryption in C# and it's perfectly working fine ... But I think there is a security problem . if we want to use this method,we must put xml files in web root directory and ...
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Why does this simple java encryption program not work? RESOLVED

EDIT: The code works now with no changes. Bizarre. I am currently working my way through Stanford's CS106A Programming Methodology class and have just passed a lesson during which the teacher ...
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2answers
28 views

How to convert public key and signature value in human readable format

I am trying to generate public key and signature in readable format which can be used in rest service .i have write following code . public static void GenearetSignature(String url,String ...
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How to choose the appropriate public (i, m) and private (j, m) keys?

I studied some encryption and decryption and I have found some very interesting problem to solve on the internet. I hope I am writing to right site - there are so many in StackExchange otherwise I ...
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3answers
29 views

Generate Same Salt everytime for Same String value

I need to add a salt to a hashed column. This hashed column is also used as an index in one of the tables. I don't want to use the same hard coded salt for all values for obvious reasons. What can ...
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1answer
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How to use public-key encryption in Py4A scripts?

I'm developing an Py4a (Python in SL4a) application running on an Android phone. The application collects some sensitive data, and then sends it via e-mail, using the smtplib module. To assure ...
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Hide geolocation of embedded map from user

I want to embed a googlemap in a page but I don't want the user to be able to determine the geolocation by inspecting the code. I've tried using the Javascript API to insert the map and loading in ...
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1answer
47 views

XOR Crypt with Linux & Windows different

currently I'm programming a chat with XOR-Encryption. But today i encountered a problem. The encryption is under Windows different as in Linux. Under Linux the chat runs normally, but under Windows ...
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1answer
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C++ How do i encrypt recorded keystrokes?

I'm making a program where it records keystrokes and saves it into a LOG.TXT file, how am i able to make that when someone types something, it becomes encrypted and stored in the LOG.TXT file?
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Ruby AES encryption

I am migrating a webservice/database written in Microsoft .net framework to ruby. I am stuck at the password encryption part because I can't replicate the encryption on ruby side. Here's the code that ...

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