TFHE-rs
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  • Welcome to TFHE-rs
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    • What is TFHE-rs?
    • Installation
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    • Benchmarks
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        • Integer
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      • GPU Benchmarks
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        • Programmable bootstrapping
      • Zero-knowledge proof benchmarks
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  • FHE Computation
    • Types
      • Integer
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      • Arithmetic operations
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      • Casting operations
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      • String Operations
    • Core workflow
      • Configuration and key generation
      • Server key
      • Encryption
      • Decryption
      • Parameters
    • Data handling
      • Compressing ciphertexts/keys
      • Serialization/deserialization
      • Data versioning
    • Advanced features
      • Encrypted pseudo random values
      • Overflow detection
      • Public key encryption
      • Trivial ciphertexts
      • Zero-knowledge proofs
      • Multi-threading with Rayon crate
    • Tooling
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  • Configuration
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    • Homomorphic parity bit
    • Homomorphic case changing on Ascii string
    • SHA256 with Boolean API
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  1. FHE Computation
  2. Core workflow

Decryption

This document provides instructions on how to decrypt data.

To decrypt data, use the decrypt method from the FheDecrypt trait:

use tfhe::prelude::*;
use tfhe::{generate_keys, ConfigBuilder, FheUint8};

fn main() {
    let config = ConfigBuilder::default().build();

    let (client_key, server_key) = generate_keys(config);

    let clear_a = 27u8;
    let clear_b = 128u8;

    let a = FheUint8::encrypt(clear_a, &client_key);
    let b = FheUint8::encrypt(clear_b, &client_key);

    let decrypted_a: u8 = a.decrypt(&client_key);
    let decrypted_b: u8 = b.decrypt(&client_key);

    assert_eq!(decrypted_a, clear_a);
    assert_eq!(decrypted_b, clear_b);
}
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Last updated 2 months ago

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