Yoo, thanks so much for the awesome message, nothing makes a creator smile more than this Really happy that my stuff helps 🙏🙏

yes i'm experiencing the same issus , did you solve the problem ?

Thanks for the support!

🙏🙏

yes i'm experiencing the same issue, did you solve the problem ?

@@hichemhammadache8798 i have the same problem

me too, did solve it?

@@hichemhammadache8798 I tried to inject the crypto class as a singleton but that didn't work , i think the problem is in the key because the crypto class is created more than one time in the app, but how to solve that ? also when I logged the ivSize in decrypt function I found that it is not the same that generated in encrypt. if you found the solution tell me please

Shouldn't be necessary

me too, did solve it?

Thank you!

@@PhilippLackner ♥️

He already told in another video that prefers Datastore Preferences because you have to do less code. In proto datastore you have to do a lot of pre-configuration before being able to use it.

@@lucasgomez4656 Thanks

Same here, did you solve this?

Update: Cleaned it up a bit . The edit by @chrisathanas i just added some extra parts for the over 1000 length fun encrypt(bytes: ByteArray, outputStream: OutputStream): ByteArray { // Include the Initialization Vector (IV) at the start of the data to encrypt val encryptedBytes = Base64.encodeToString(encryptCipher.doFinal(encryptCipher.iv + bytes), Base64.DEFAULT) //Encode the Encrypted data to base64 val iv = Base64.encodeToString(encryptCipher.iv, Base64.DEFAULT) //Encode the Iv to base64 outputStream.use { it.write(iv.length) // length of the IV it.write(iv.toByteArray()) // Iv base64 it.write(encryptedBytes.toByteArray()) // encrypted data that is base64 } return encryptedBytes.toByteArray() } fun decrypt(inputStream: InputStream): ByteArray { return inputStream.use { val ivSize = it.read() val iv = ByteArray(ivSize) it.read(iv) val encryptedBytes = it.readBytes() // This is better as you have got your iv read so what is left in the buffer should be data inputStream.close() // close the Stream to be safe. val ivDecoded = Base64.decode(iv, Base64.DEFAULT) // decode your IV base64 string val encryptedDecoded = Base64.decode(encryptedBytes, Base64.DEFAULT) //decode the data from base64 that is encrypted val decipheredByteArray = getDecryptCipherForIv(ivDecoded).doFinal(encryptedDecoded) //Decrypt the data // Strip the Initialization Vector (usually first 16 bytes) to get the actual unencrypted data decipheredByteArray.toList().subList(ivDecoded.size, decipheredByteArray.size).toByteArray() } }

That's not done via compose, that's done using a library usually. But PDFs is an interesting topic, thanks

@@PhilippLackner a ebook reader sort of app

Probably the same way this video recommends.

what about assymettric encryption

@@ankitverma3932 how?

RSA encryption

@@ankitverma3932 public ,private key one? ohk so i am not that much experienced in this type of enc can you give me a simple algo means b/w server and user I think so there's a way to decrypt those

Yeah.. there are a bunch of medium articles about RSA encryption.

Hi, experiencing the exact same issue - have you managed to solve it?

I am seeing the same thing, not sure how to solve it. Looks like the first part of the data is mangled, but the second part is fine...

I keep getting my comments deleted and not sure why... Here goes my third attempt: This code change prevents the bug when you close the app and attempt to reopen it and click "load" to load the previously saved values. // in CryptoManager.kt, you have to add and strip the Initialization Vector (IV) as shown below: fun encrypt(bytes: ByteArray, outputStream: OutputStream): ByteArray { // Include the Initialization Vector (IV) at the start of the data to encrypt val encryptedBytes = encryptCipher.doFinal(encryptCipher.iv + bytes) outputStream.use { it.write(encryptCipher.iv.size) it.write(encryptCipher.iv) it.write(encryptedBytes.size) it.write(encryptedBytes) } return encryptedBytes } fun decrypt(inputStream: InputStream): ByteArray { return inputStream.use { val ivSize = it.read() val iv = ByteArray(ivSize) it.read(iv) val encryptedBytesSize = it.read() val encryptedBytes = ByteArray(encryptedBytesSize) it.read(encryptedBytes) val decipheredByteArray = getDecryptCipherForIv(iv) .doFinal(encryptedBytes) // Strip the Initialization Vector (usually first 16 bytes) to get the actual unencrypted data decipheredByteArray .toList() .subList(ivSize, decipheredByteArray.size) // skip the IV .toByteArray() } }

@@ChrisAthanas Thank you so much, you saved my day🙏👏

@@ChrisAthanas ty very much

Check my comment above for solution

Check my comment above for solution

thank you a lot, I have done the same mistake