fides 2.3.0

Fides is a library for hashing with blake3, asymmetric cryptography on curve 25519, symmetric cryptography with chacha20poly1305 and merkle tree functions.
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# Fides


Fides is a library for hashing with blake3, asymmetric cryptography on curve 25519, symmetric cryptography with chacha20poly1305 and merkle tree functions.

## Usage


In your `Cargo.toml`:

```text
[dependencies]
fides = "2.3.0"
```

In your `module.rs`:

```text
use fides::{ chacha20poly1305, ed25519, hash, merkle_root, x25519 };
```

## API


### Hashing


```text
let object: Vec<u8>;

let object_hash = hash(&object[..]);
```

### ChaCha20Poly1305


```text
let message: Vec<u8>;

let key: [u8; 32] = hash(&"password".as_bytes());

let cipher: Vec<u8> = chacha20poly1305::encrypt(&key, &message[..])?;

let plain: Vec<u8> = chacha20poly1305::decrypt(&key, &cipher[..])?;
```

### Ed25519


```text
let priv_key: [u8;32] = ed25519::private_key();

let signature: [u8; 64] = ed25519::sign(&message, &priv_key);

let pub_key: [u8;32] = ed25519::public_key(&priv_key);

let verification: bool = ed25519::verify(&message, &pub_key, &signature);
```

### x25519


```text
let priv_key: [u8;32] = x25519::private_key();

let pub_key: [u8;32] = x25519::public_key(&priv_key);

let shared_secret_key: [u8;32] = x25519::shared_key(&priv_key, &other_party_pub_key);
```

### Merkle Tree


```text
let hashes: Vec<[u8; 32]>;

let root = merkle_root(hashes);
```

## Contribution


Pull requests, bug reports and any kind of suggestion are welcome.

2022-04-29