createSharedSecret

Compute a secret suitable for secretbox given a recipient's public key and a sender's secret key.

Function parameters

Parameters

public_key:[public_length]u8
secret_key:[secret_length]u8

The XSalsa stream cipher, combined with the Poly1305 MAC

Types

XSalsa20Poly1305: The XSalsa stream cipher, combined with the Poly1305 MAC
SecretBox: NaCl-compatible secretbox API.
Box: NaCl-compatible box API.
SealedBox: libsodium-compatible sealed boxes

The Salsa stream cipher.

Functions

Salsa: The Salsa stream cipher.
XSalsa: The XSalsa stream cipher.

Source

Implementation

pub fn createSharedSecret(public_key: [public_length]u8, secret_key: [secret_length]u8) (IdentityElementError || WeakPublicKeyError)![shared_length]u8 {
    const p = try X25519.scalarmult(secret_key, public_key);
    const zero = [_]u8{0} ** 16;
    return SalsaImpl(20).hsalsa(zero, p);
}