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Hi,<br />
<br />
In a Java app, I need to encrypt a file for local storage using symmetric key and require advice on best practice / example code.<br />
<br />
Thanks<br />
<br />
Dbb
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Hi,

In a Java app, I need to encrypt a file for local storage using symmetric key and require advice on best practice / example code.

Thanks

Dbb

Encrypt a file

Java is a platform-independent, object-oriented programming language and run-time environment, designed to have as few implementation dependencies as possible such that developers can write one set of code across all platforms using libraries. Most devices will not run Java natively, and require a run-time component to be installed in order to execute a Java program.

Java

Encryption is the process of encoding messages or information in such a way that only authorized parties can read it. In an encryption scheme, the intended communication information or message, referred to as plaintext, is encrypted using an encryption algorithm, generating ciphertext that can only be read if decrypted. For technical reasons, an encryption scheme usually uses a pseudo-random encryption key generated by an algorithm. An authorized recipient can easily decrypt the message with the key provided by the originator to recipients, but not to unauthorized interceptors.