B4A Library [B4X] B4XEncryption

This library allows you to encrypt or decrypt data using the AES encryption method.

To prevent confusion, B4XEncryptino is not a b4xlib and is made of three platform specific libraries:
B4XEncryption - B4A
jB4XEncryption - B4J
iEncryption - B4i (Encrypt and Decrypt methods)

It is simple to use and is cross platform, which means that you can encrypt the data on one platform and decrypt it on a different platform.

Usage example:

Sub EncryptText(text As String, password As String) As Byte()
   Dim c As B4XCipher
   Return c.Encrypt(text.GetBytes("utf8"), password)
End Sub

Sub DecryptText(EncryptedData() As Byte, password As String) As String
   Dim c As B4XCipher
   Dim b() As Byte = c.Decrypt(EncryptedData, password)
   Return BytesToString(b, 0, b.Length, "utf8")
End Sub

Dim encryptedData() As Byte = EncryptText("confidential", "123456")
Log(DecryptText(encryptedData, "123456"))

B4XPages example project is attached.

 

[victormedranop]

This only use aes? what about 3des

victor

 

[MarcoRome]

This only use aes? what about 3des

victor

Look THIS

 

[Chris Lee]

Erel, I'm using agraham's Base64 encryption lib in AES mode, is this lib more efficient?

And, I'm reading into a C# program and I've seen some decryption issues between android and .Net. Can I use the same C# code (that works at the moment) ?

I've just created a .net DLL that lets you use B4XEncryption data in the .net environment, see:

https://www.b4x.com/android/forum/threads/b4xencryption-net-dll-class-library.89972/