1. KMatle

    B4R Tutorial RSA Encryption: Create keys, en-/decrypt, hash, sign/verify signature (clean code)

    This example replaces my previous examples with cleaner inline C coding (I'm getting better :-))using almost all variables from Globals. You can define the keysizes (eg. 2048 or 4096). It's fully compatible with all plattforms (B4x, PHP, OpenSSL, etc.). The ESP's use mbdtls which is included...
  2. B

    Android Question Key Store Review

    Hi I want to get the signature of the program and compare it with my Key Store to make sure that the program installed on the user's phone is the original version and has not been decompiled once, and I want to see if someone has decompiled the program (the program signature is broken) Prohibit...
  3. Alexander Stolte

    Android Code Snippet [B4X] RSA Encrypt and Decrypt

    Hey, i build a auth method for my app to protect my API and one of this step is to signed requests to the api to ensure that every request comes from my app. RSA is the best method for that, because this is not a hash, so that the same input is ever the same output. The API knows the Private...
  4. MarkusR

    Android Question Problem with app sign .keystore

    i got message ( its with java jdk-9.0.1 & jdk-9.0.4