Hello, I'm writing a client-server application to be used in a computer lab and act as a service (without running as a service). I have a console application calling the native function "ShowWindow"/SW_HIDE using the console's HWND object -- this gives it what I am wanting here. The server/client is working, I've sent the message "Hello...
I am trying to test the API from ankoder.com and have problem on the digest calculation for the authentication token . The sample is ruby while I am trying to call from C#. When I compare the digest result between in HMAC-SHA1, I got issues with the passkey result. To make it easy to test here is the code: require 'hmac-sha1' require ...
Is there a small library for RSA or DSA without any dependencies like GMP or OpenSSL? (Written in C or Asm) ...
So I have this black box authentication method, handed down to me from the accounts people, which basically amounts to ldap_bind($connection, $username, $password). But of course, I want my users to be able to log in for, say, 30 days at a time. The naive but insecure way to handle this is to store the username and password in plaintext...
Hi, I have a query regarding sending secure data over the network in iPhone. What should be used to secure credit-card, bank acct# etc. information which is sent over wireless network. Is there any difference in methods if we use a native-app or a web-app? Are there any direct APIs available for this? Any tutorial will be really he...
hi thre i want to provide a textbox that would allow the user to encrypt a text i will basically use that in my create view for users and i have username and password textbox html helper how would i apply an encrypt functionality for the password textbox html helper? let say i have a button encrypt beside the password textbox... th...
Basically, I need to use the User's password hash to encrypt some data via a custom model field. Check out the snippet I used here: Django Encryption. I tried this: class MyClass(models.Model): owner = models.ForeignKey(User) product_id = EncryptedCharField(max_length=255, user_field=owner) ......................................
Hi All, I want to encrypt individual contacts stored by the Contacts application on Android based on user's preference. So, I am thinking I'll have to hook/extend the Contacts application before the it stores data into the database and decrypt it when the user wants to view it. Also, I am assuming I will have to store the key for encryp...
Hi, I have an HTML form where people can make payments on my sites. Instead of using SSL, I'm wondering whether I could use a JS lib that would encrypt the credit card information and send it to the server in clear text but encrypted, than the server would decrypt it. I found several libs that do that, they basically ask for a key pair ...
I am not a security expert... so I might be very wrong here. Am I right in that the only advantage to using a stronger algorithm is to slow down password cracking? In which case they must have the password hash and so will have already comprimised my database right? As I do not store any thing of real world value what is the point in ...
I have an idea for an open source app -- the app would be free, but I would charge a small fee for data that a customer would order. For instance, let's say I'm writing a map application. I'd give the app away, make it open-source, but I would like to sell various maps to individual users. Is there a way to protect the data in such a wa...
Hi guys I have read about password salting, but this might sound a little odd. But how do I store and secure the salt. For example in a multi tire architecture say I use the client machine’s GUID to generate my salt then the user gets restricted to a single machine but if I use random salt it has to be stored somewhere. Few days back I ...
Hey SO'ers, I'm making a C#/WPF app that needs to access a number of tables to generate some of the xaml code I will use in the app. The tables will also contain some floating point numerical data as well. The program is single-user, so the rdbms doesn't have to be very fancy, but the file does need to be encrypted as it will be "shrin...
If I have the DecryptionKey and ValidationKey set to AutoGenerate in the machineKey section of the machine.config, how do i look up from .NET the actual generated keys which have been created? We wish to use the same keys to encrypt and validate our own cookies. Any clues/tips gratefully received. ...
Hello, I was attempting to encrypt de cookie data with md5, but I can not validate the hash back. It has got to do, with the fact that cookie_data is a serialized array, because normal stringvalues work ok. It's actually from a codeigniter class, but it does not work?? Does anyone know what the problem might be? $hash = substr($s...
In my application I take a user's e-mail address, encrypt it, and URLEncode it, and pass it along into a QueryString. email = Server.UrlEncode(aes.Encrypt(email)); The landing page does a Request.Querystring["email"], UrlDecodes it, and then decrypts it. string email = Server.UrlDecode(Request.QueryString["eId"]); ...
Hi, I am currently sending an email from my xcode/iphone app. The requirements are to send an encrypted email or attached file and then be able to decrypt/open the information after receipient delivery. Has anyone seen any code to help me accomplish this task? Thanks Leland ...
this code give invalid AES key length error. how can i correct it ? ( i want 128 bit key AES encryption ) package org.temp2.cod1; import java.security.*; import javax.crypto.*; import javax.crypto.spec.*; import java.io.*; public class Code1 { public static void main(String[] args) throws NoSuchAlgorithmException, NoSuchPaddingEx...
when you want to encrypt something dont you want the key to decrypt to be decided by you and not generator by some random number generator ? i see this code in stackoverflow post. but i dont want the key to be generated randomly i want to the user to be asked to enter the key and on that bases the encryption should happen.. any suggest...
i get the error " password , salt not resolved ". any suggestions ? package org.temp2.cod1; import java.security.*; import java.security.spec.KeySpec; import javax.crypto.*; import javax.crypto.spec.*; import java.io.*; public class Code2 { public static void main(String[] args) throws NoSuchAlgorithmException, NoSuchPaddingException...