Talk:How to calculate hash for a text using QCryptographicHash in Qt
Encryption is the process of transforming information to an unreadable data to anyone except those possesing the Key. The encrytion is done using an algoritm and the study of information which is hidden/ encrypted is called Cryptography. The Key is used to decrypt the encrypted data. Encryption is broadly used to transfer data privately.
The article presents the way to encrypt data using QCryptoGraphicHash class in Qt for Symbian. The article contains an application to encrypt a predefined string in to encrypted data. The code snippet and sceen-shot are provided in this article.
Encryption is very important aspect in transfering data securely and this way the article has its importance. It can be useful to beginners to study encryption.
Encryption is the most effective way to achieve data security. To read an encrypted file, you must have access to a secret key or password that enables you to decrypt it. Sending a plain text, Unencrypted data, over internet Or saving plain text in a file (which is located in public directory) is risky, anyone can tap the channel and use data directly. Cipher text, encrypted data, is more secure compared to plain text.
The QCryptographicHash class provides a way to generate cryptographic hashes. Currently MD4, MD5, and SHA-1 hash are supported.
The article is useful to generates cryptographic hashes using QCryptographicHash class. A beginners find it useful to generate cryptographic hashes.
Hamishwillee - @NegInfinity - nice updates!
This looks like almost a complete re-write. Thanks very much for your community spirit. Writing an article in the first place is appreciated, but improving and updating one when it is out of date adds just as much value!
Hamish(Community Services Manager, Nokia)
02:25, 16 September 2011 (EEST)