how to decrypt a expo-crypto string

Expo SDK
1

Please provide the following:

  1. SDK Version:38
  2. Platforms(Android/iOS/web/all):android and ios

once we have encrypted a string using expo-crypto’s Crypto.digestStringAsync method how to decrypt it?

2

Hi

Crypto.digestStringAsync() does not encrypt the string. It uses a cryptographic hash function to generate a checksum from the string. i.e. it is a one-way hash function, not encryption.

The expo-crypto module is named a bit confusingly in my opinion. Maybe they’re planning to add things like encryption and decryption later in which case the name would make sense.

3

Can you please suggest me some other way to encrypt and decrypt data
Basically I want to download a video and then encrypt it so that the user can’t access the video outside the app

4

Sorry, I don’t know off hand. I think you might have to eject. Try googling for things like “react-native encryption”.

5

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