Demo app showcasing FHE Sentiment analysis using ZAMA's sentiment analysis demo.
Clone the repo.
+++ Add steps to run the app
Loading the text file - A text file is loaded from the user's device that contains the message that needs to analysed.
Reading the file - The contents of the file are parsed on device.
Encrypting the file content - Using RSA encryption, the content encrypted using the public key and the private key is securely stored on device.
Sending the encrypted data and the public key to the server - To perform FHE sentiment analysis the public ley and the encrypted message is sent to the server.
Performing sentiment analysis on encrypted data - ZAMA's FHE Sentiment analysis demo container is used to perform the analysis and the results are sent back to the device.
Receiving the encrypted server response - Having the public key already stored, the server only responds with the results of the analysis.
Decrypting the response - Using the private key, the server's response is decrypted and shown to the user.
Encryption is done on device - To ensure that no data is shared with any party, everything must be encrypted.
On device encryption - The first step is to encrypt the data before it leaves the user's device.
RSA Encryption - RSA is a type of asymmetric encryption, which uses two different but linked keys. One is a public key, that will be shared with the FHE SA (sentiment analysis) service and the other is the private key, which is stored in device.
Encryption during data transfer - HTTPS guarantees encryption during data transport from the device to the server and back.
The server can't decrypt the message - The only way to decrypt the message is to use the private key, which the server does not know.
The data is only visible to the user - Because of the steps described above, the data cannot be read by anybody else who does not have access to the user's device.
Automatic Cloud Backup - On mobile phones most users have automatic cloud backups enabled by default. This means that the contents on the device are automatically loaded on Apple's or Google's cloud storage.
US Laws force cloud service providers to hand over data - Due to certain laws in the US (maybe other states as well) cloud service providers are forced to handle user data in unsecure ways. I.e. they are forced to hand data over to law enforcement.
Private key storage - Because of this, no data can ever be truly encrypted on any mobile smartphone as long as automatic cloud backups are enabled.
ZAMA AI FHE Sentiment Analysis Demo - encrypted_sentiment_analysis
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