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563
votes
23answers
560034 views

Encrypt and decrypt a string

Can someone give me the code to encrypt and decrypt a string in C#?
330
votes
9answers
444322 views

Java 256-bit AES Password-Based Encryption

I need to implement 256 bit AES encryption, but all the examples I have found online use a "KeyGenerator" to generate a 256 bit key, but I would like to use my own passkey. How can I create my own key...
418
votes
11answers
163911 views

Fundamental difference between Hashing and Encryption algorithms

I see a lot of confusion between hashes and encryption algorithms and I would like to hear some more expert advice about: When to use hashes vs encryptions What makes a hash or encryption algorithm ...
198
votes
23answers
315704 views

Is it possible to decrypt md5 hashes?

Someone told me that he has seen software systems that would accept MD5 encrypted passwords (through various integrations with other systems), decrypt them, and store them in the systems own database ...
206
votes
8answers
232004 views

Best way to use PHP to encrypt and decrypt passwords?

Possible Duplicate: PHP 2-way encryption: I need to store passwords that can be retrieved I plan to store foreign account information for my users on my website, aka rapidshare username and...
226
votes
7answers
388903 views

Encrypting & Decrypting a String in C#

What is the most modern (best) way of satisfying the following in C#? string encryptedString = SomeStaticClass.Encrypt(sourceString); string decryptedString = SomeStaticClass.Decrypt(encryptedString...
93
votes
9answers
78453 views

Difference between Hashing a Password and Encrypting it

The current top-voted to this question states: Another one that's not so much a security issue, although it is security-related, is complete and abject failure to grok the difference between hashi...
118
votes
4answers
131223 views

AES Encryption for an NSString on the iPhone

Can anybody point me in the right direction to be able to encrypt a string, returning another string with the encrypted data? (I've been trying with AES256 encryption.) I want to write a method which ...
91
votes
5answers
132627 views

How to encrypt/decrypt data in php?

I'm currently a student and I'm studying PHP, I'm trying to make a simple encrypt/decrypt of data in PHP. I made some online research and some of them were quite confusing(at least for me). Here's wh...
142
votes
5answers
290868 views

How do you Encrypt and Decrypt a PHP String?

What I mean is: Original String + Salt or Key --> Encrypted String Encrypted String + Salt or Key --> Decrypted (Original String) Maybe something like: "hello world!" + "ABCD1234" --> Enc...

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