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Edit: this library isn't compatible with the 16KB page size requirement. Don't use it. SQLCipher is an open source project that extends SQLite and adds full database encryption. License: https://www.zetetic.net/sqlcipher/open-source/ B4A SQLCipher is a special subtype of SQL object. There is almost no need to change any code in order to switch from regular SQL to SQLCipher. The only difference between SQL API and SQLCipher API is the Initialize method. SQLCipher.Initialize expects...

LetsEncrypt provides SSL certificates for free. The certificates are created and renewed using... 'srvr.AddFilter("/*", "HttpsFilter", False) End Sub The LetsEncrypt class should be added with a background worker: srvr.AddBackgroundWorker(&quot;LetsEncrypt"...>\Objects\certbot LetsEncrypt sets a limit on the number of certificates (for the same domain). The limit... <password> -alias b4j LetsEncrypt certificates are not recognized as valid certificates on Android...

. RandomAccessFile library v1.10 includes the beloved ReadEncrypredObject / WriteEncryptedObject methods... useful and they allow you to easily write complex objects in a single line of code. ReadEncryptedObject and WriteEncryptedObject methods also encrypt the data. The B4A tutorial is available here: Encrypting information with RandomAccessFile library The encryption method used is the same in B4J and... on an encryption library named Bouncy Castle. Android includes this library as part of the OS. In...

HTTP/2 mode. This is a Let's encrypt limitation. Also, READ THE LOGS. There is important info in... Encrypt Sub MakeJKS() As Boolean Dim Result As Boolean ' needs to be the 'entry point..., I check here if it is my local PC. If so I do not use the production server of Let's Encrypt... create " & JKSName & ".jks with Let's Encrypt. Let's try to make a self...

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

Here's a library that, for the moment, can perform Base64 encoding and decoding and symmetric algorithm encryption and decryption. Tested symmetric algorithms are DES, Triple DES and AES (Rijndael). As the Java encryption rountines are all byte array oriented you will need my ByteConverter library to run the demo. EDIT :- Version 1.1 posted. Asymmetric algorithms, Signing and MACs now implemented. See post#2 for details....

Is there a way to catch this error “java.lang.OutOfMemoryError: Java heap space”? When the error happens it just seems to close the app.. I don’t want the app to close just display the error to the user. NOTE: it seems that the size if file being encrypted depends on the computer and how much memory it has.....

Do I need to submit the Export Compliance Information if my app uses AES encryption? 142181 It also asked me whether my app will be available for users in France....

the responses Now I would like to pass some encrypted data, using routines like at this link, which shows an example of encryption and decryption in B4J code #AdditionalJar: bcprov-jdk15on-154 Sub... s As String = "top secret" Dim enc As String = Encrypt(s, p) Log(enc) Dim dec As String = Decrypt(enc, p) Log(dec) End Sub Private Sub Encrypt (Text As String, Password As String) As String Dim c As B4XCipher Dim b() As Byte = c.Encrypt(Text.GetBytes("utf8"...

Hello, i have a few questions regarding this https://www.b4x.com/android/forum/threads/server-ssl-connections.40130/ Asume i have a working LetsEncrypt-Certificate running on my Webserver. On the same machine i´m running multiple B4J Server apps. It is a Windows VPS. What do i need to do to create a keystore with this Certificate to use it in my b4j server apps? Asking another way: What kind... my LetsEncrypt-Certificate to a Keystore which i then can use in my Serverapps?...