tuxmain/double-ratchet-rs
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Added associated data

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This commit is contained in:
Hannes 2021-05-14 18:40:38 +02:00
parent 290cbd207a
commit 4f98f02f01
4 changed files with 68 additions and 59 deletions
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18
src/header.rs
View file

@ -18,6 +18,8 @@ pub struct Header {
#[derive(Serialize, Deserialize, Debug)] #[derive(Serialize, Deserialize, Debug)]
struct ExHeader { struct ExHeader {
#[serde(with = "serde_bytes")]
ad: Vec<u8>,
public_key: [u8; 32], public_key: [u8; 32],
pn: usize, pn: usize,
n: usize n: usize
@ -34,8 +36,9 @@ impl Header {
} }
} }
// #[doc(hidden)] // #[doc(hidden)]
pub fn concat(&self) -> Vec<u8> { pub fn concat(&self, ad: &[u8]) -> Vec<u8> {
let ex_header = ExHeader{ let ex_header = ExHeader {
ad: ad.to_vec(),
public_key: self.public_key.to_bytes(), public_key: self.public_key.to_bytes(),
pn: self.pn, pn: self.pn,
n: self.n n: self.n
@ -43,8 +46,8 @@ impl Header {
bincode::serialize(&ex_header).expect("Failed to serialize Header") bincode::serialize(&ex_header).expect("Failed to serialize Header")
} }
pub fn encrypt(&self, hk: &[u8; 32]) -> (Vec<u8>, [u8; 12]) { pub fn encrypt(&self, hk: &[u8; 32], ad: &[u8]) -> (Vec<u8>, [u8; 12]) {
let header_data = self.concat(); let header_data = self.concat(ad);
encrypt(hk, &header_data, b"") encrypt(hk, &header_data, b"")
} }
@ -95,7 +98,7 @@ impl From<&[u8]> for Header {
impl From<Header> for Vec<u8> { impl From<Header> for Vec<u8> {
fn from(s: Header) -> Self { fn from(s: Header) -> Self {
s.concat() s.concat(b"")
} }
} }
@ -126,8 +129,9 @@ mod tests {
#[test] #[test]
fn ser_des() { fn ser_des() {
let ad = b"";
let header = gen_header(); let header = gen_header();
let serialized = header.concat(); let serialized = header.concat(ad);
let created = Header::from(serialized); let created = Header::from(serialized);
assert_eq!(header, created) assert_eq!(header, created)
} }
@ -136,7 +140,7 @@ mod tests {
fn enc_header() { fn enc_header() {
let header = gen_header(); let header = gen_header();
let mk = gen_mk(); let mk = gen_mk();
let header_data = header.concat(); let header_data = header.concat(b"");
let data = include_bytes!("aead.rs"); let data = include_bytes!("aead.rs");
let (encrypted, nonce) = encrypt(&mk, data, &header_data); let (encrypted, nonce) = encrypt(&mk, data, &header_data);
let decrypted = decrypt(&mk, &encrypted, &header_data, &nonce); let decrypted = decrypt(&mk, &encrypted, &header_data, &nonce);

35
src/lib.rs
View file

@ -17,9 +17,10 @@
//! let (mut bob_ratchet, public_key) = Ratchet::init_bob(sk); // Creating Bobs Ratchet (returns Bobs PublicKey) //! let (mut bob_ratchet, public_key) = Ratchet::init_bob(sk); // Creating Bobs Ratchet (returns Bobs PublicKey)
//! let mut alice_ratchet = Ratchet::init_alice(sk, public_key); // Creating Alice Ratchet with Bobs PublicKey //! let mut alice_ratchet = Ratchet::init_alice(sk, public_key); // Creating Alice Ratchet with Bobs PublicKey
//! let data = b"Hello World".to_vec(); // Data to be encrypted //! let data = b"Hello World".to_vec(); // Data to be encrypted
//! let ad = b"Associated Data"; // Associated Data
//! //!
//! let (header, encrypted, nonce) = alice_ratchet.ratchet_encrypt(&data); // Encrypting message with Alice Ratchet (Alice always needs to send the first message) //! let (header, encrypted, nonce) = alice_ratchet.ratchet_encrypt(&data, ad); // Encrypting message with Alice Ratchet (Alice always needs to send the first message)
//! let decrypted = bob_ratchet.ratchet_decrypt(&header, &encrypted, &nonce); // Decrypt message with Bobs Ratchet //! let decrypted = bob_ratchet.ratchet_decrypt(&header, &encrypted, &nonce, ad); // Decrypt message with Bobs Ratchet
//! assert_eq!(data, decrypted) //! assert_eq!(data, decrypted)
//! ``` //! ```
//! //!
@ -31,12 +32,13 @@
//! let (mut bob_ratchet, public_key) = Ratchet::init_bob(sk); // Creating Bobs Ratchet (returns Bobs PublicKey) //! let (mut bob_ratchet, public_key) = Ratchet::init_bob(sk); // Creating Bobs Ratchet (returns Bobs PublicKey)
//! let mut alice_ratchet = Ratchet::init_alice(sk, public_key); // Creating Alice Ratchet with Bobs PublicKey //! let mut alice_ratchet = Ratchet::init_alice(sk, public_key); // Creating Alice Ratchet with Bobs PublicKey
//! let data = b"Hello World".to_vec(); // Data to be encrypted //! let data = b"Hello World".to_vec(); // Data to be encrypted
//! let ad = b"Associated Data"; // Associated Data
//! //!
//! let (header1, encrypted1, nonce1) = alice_ratchet.ratchet_encrypt(&data); // Lost message //! let (header1, encrypted1, nonce1) = alice_ratchet.ratchet_encrypt(&data, ad); // Lost message
//! let (header2, encrypted2, nonce2) = alice_ratchet.ratchet_encrypt(&data); // Successful message //! let (header2, encrypted2, nonce2) = alice_ratchet.ratchet_encrypt(&data, ad); // Successful message
//! //!
//! let decrypted2 = bob_ratchet.ratchet_decrypt(&header2, &encrypted2, &nonce2); // Decrypting second message first //! let decrypted2 = bob_ratchet.ratchet_decrypt(&header2, &encrypted2, &nonce2, ad); // Decrypting second message first
//! let decrypted1 = bob_ratchet.ratchet_decrypt(&header1, &encrypted1, &nonce1); // Decrypting latter message //! let decrypted1 = bob_ratchet.ratchet_decrypt(&header1, &encrypted1, &nonce1, ad); // Decrypting latter message
//! //!
//! let comp = decrypted1 == data && decrypted2 == data; //! let comp = decrypted1 == data && decrypted2 == data;
//! assert!(comp); //! assert!(comp);
@ -47,11 +49,11 @@
//! ```should_panic //! ```should_panic
//! use double_ratchet_2::ratchet::Ratchet; //! use double_ratchet_2::ratchet::Ratchet;
//! let sk = [1; 32]; //! let sk = [1; 32];
//! //! let ad = b"Associated Data";
//! let (mut bob_ratchet, _) = Ratchet::init_bob(sk); //! let (mut bob_ratchet, _) = Ratchet::init_bob(sk);
//! let data = b"Hello World".to_vec(); //! let data = b"Hello World".to_vec();
//! //!
//! let (_, _, _) = bob_ratchet.ratchet_encrypt(&data); //! let (_, _, _) = bob_ratchet.ratchet_encrypt(&data, ad);
//! ``` //! ```
//! //!
//! ## Encryption after recieving initial message //! ## Encryption after recieving initial message
@ -65,12 +67,13 @@
//! let mut alice_ratchet = Ratchet::init_alice(sk, public_key); //! let mut alice_ratchet = Ratchet::init_alice(sk, public_key);
//! //!
//! let data = b"Hello World".to_vec(); //! let data = b"Hello World".to_vec();
//! let ad = b"Associated Data";
//! //!
//! let (header1, encrypted1, nonce1) = alice_ratchet.ratchet_encrypt(&data); //! let (header1, encrypted1, nonce1) = alice_ratchet.ratchet_encrypt(&data, ad);
//! let _decrypted1 = bob_ratchet.ratchet_decrypt(&header1, &encrypted1, &nonce1); //! let _decrypted1 = bob_ratchet.ratchet_decrypt(&header1, &encrypted1, &nonce1, ad);
//! //!
//! let (header2, encrypted2, nonce2) = bob_ratchet.ratchet_encrypt(&data); //! let (header2, encrypted2, nonce2) = bob_ratchet.ratchet_encrypt(&data, ad);
//! let decrypted2 = alice_ratchet.ratchet_decrypt(&header2, &encrypted2, &nonce2); //! let decrypted2 = alice_ratchet.ratchet_decrypt(&header2, &encrypted2, &nonce2, ad);
//! //!
//! assert_eq!(data, decrypted2); //! assert_eq!(data, decrypted2);
//! ``` //! ```
@ -83,7 +86,8 @@
//! # let (mut bob_ratchet, public_key) = Ratchet::init_bob(sk); //! # let (mut bob_ratchet, public_key) = Ratchet::init_bob(sk);
//! # let mut alice_ratchet = Ratchet::init_alice(sk, public_key); //! # let mut alice_ratchet = Ratchet::init_alice(sk, public_key);
//! # let data = b"hello World".to_vec(); //! # let data = b"hello World".to_vec();
//! # let (header, _, _) = alice_ratchet.ratchet_encrypt(&data); //! # let ad = b"Associated Data";
//! # let (header, _, _) = alice_ratchet.ratchet_encrypt(&data, ad);
//! let header_bytes: Vec<u8> = header.clone().into(); //! let header_bytes: Vec<u8> = header.clone().into();
//! let header_const = Header::from(header_bytes); //! let header_const = Header::from(header_bytes);
//! assert_eq!(header, header_const); //! assert_eq!(header, header_const);
@ -100,9 +104,10 @@
//! let (mut bob_ratchet, public_key) = RatchetEncHeader::init_bob(sk, shared_hka, shared_nhkb); //! let (mut bob_ratchet, public_key) = RatchetEncHeader::init_bob(sk, shared_hka, shared_nhkb);
//! let mut alice_ratchet = RatchetEncHeader::init_alice(sk, public_key, shared_hka, shared_nhkb); //! let mut alice_ratchet = RatchetEncHeader::init_alice(sk, public_key, shared_hka, shared_nhkb);
//! let data = b"Hello World".to_vec(); //! let data = b"Hello World".to_vec();
//! let ad = b"Associated Data";
//! //!
//! let (header, encrypted, nonce) = alice_ratchet.ratchet_encrypt(&data); //! let (header, encrypted, nonce) = alice_ratchet.ratchet_encrypt(&data, ad);
//! let decrypted = bob_ratchet.ratchet_decrypt(&header, &encrypted, &nonce); //! let decrypted = bob_ratchet.ratchet_decrypt(&header, &encrypted, &nonce, ad);
//! assert_eq!(data, decrypted) //! assert_eq!(data, decrypted)
//! ``` //! ```
//! //!

30
src/ratchet.rs
View file

@ -65,21 +65,21 @@ impl Ratchet {
} }
/// Encrypt Plaintext with [Ratchet]. Returns Message [Header] and ciphertext. /// Encrypt Plaintext with [Ratchet]. Returns Message [Header] and ciphertext.
pub fn ratchet_encrypt(&mut self, plaintext: &[u8]) -> (Header, Vec<u8>, [u8; 12]) { pub fn ratchet_encrypt(&mut self, plaintext: &[u8], ad: &[u8]) -> (Header, Vec<u8>, [u8; 12]) {
let (cks, mk) = kdf_ck(&self.cks.unwrap()); let (cks, mk) = kdf_ck(&self.cks.unwrap());
self.cks = Some(cks); self.cks = Some(cks);
let header = Header::new(&self.dhs, self.pn, self.ns); let header = Header::new(&self.dhs, self.pn, self.ns);
self.ns += 1; self.ns += 1;
let (encrypted_data, nonce) = encrypt(&mk, plaintext, &header.concat()); let (encrypted_data, nonce) = encrypt(&mk, plaintext, &header.concat(ad));
(header, encrypted_data, nonce) (header, encrypted_data, nonce)
} }
fn try_skipped_message_keys(&mut self, header: &Header, ciphertext: &[u8], nonce: &[u8; 12]) -> Option<Vec<u8>> { fn try_skipped_message_keys(&mut self, header: &Header, ciphertext: &[u8], nonce: &[u8; 12], ad: &[u8]) -> Option<Vec<u8>> {
if self.mkskipped.contains_key(&(header.public_key, header.n)) { if self.mkskipped.contains_key(&(header.public_key, header.n)) {
let mk = *self.mkskipped.get(&(header.public_key, header.n)) let mk = *self.mkskipped.get(&(header.public_key, header.n))
.unwrap(); .unwrap();
self.mkskipped.remove(&(header.public_key, header.n)).unwrap(); self.mkskipped.remove(&(header.public_key, header.n)).unwrap();
Some(decrypt(&mk, ciphertext, &header.concat(), nonce)) Some(decrypt(&mk, ciphertext, &header.concat(ad), nonce))
} else { } else {
None None
} }
@ -104,8 +104,8 @@ impl Ratchet {
} }
/// Decrypt ciphertext with ratchet. Requires Header. Returns plaintext. /// Decrypt ciphertext with ratchet. Requires Header. Returns plaintext.
pub fn ratchet_decrypt(&mut self, header: &Header, ciphertext: &[u8], nonce: &[u8; 12]) -> Vec<u8> { pub fn ratchet_decrypt(&mut self, header: &Header, ciphertext: &[u8], nonce: &[u8; 12], ad: &[u8]) -> Vec<u8> {
let plaintext = self.try_skipped_message_keys(header, ciphertext, nonce); let plaintext = self.try_skipped_message_keys(header, ciphertext, nonce, ad);
match plaintext { match plaintext {
Some(d) => d, Some(d) => d,
None => { None => {
@ -119,7 +119,7 @@ impl Ratchet {
let (ckr, mk) = kdf_ck(&self.ckr.unwrap()); let (ckr, mk) = kdf_ck(&self.ckr.unwrap());
self.ckr = Some(ckr); self.ckr = Some(ckr);
self.nr += 1; self.nr += 1;
decrypt(&mk, ciphertext, &header.concat(), nonce) decrypt(&mk, ciphertext, &header.concat(ad), nonce)
} }
} }
} }
@ -202,18 +202,18 @@ impl RatchetEncHeader {
(ratchet, public_key) (ratchet, public_key)
} }
pub fn ratchet_encrypt(&mut self, plaintext: &[u8]) -> HeaderNonceCipherNonce { pub fn ratchet_encrypt(&mut self, plaintext: &[u8], ad: &[u8]) -> HeaderNonceCipherNonce {
let (cks, mk) = kdf_ck(&self.cks.unwrap()); let (cks, mk) = kdf_ck(&self.cks.unwrap());
self.cks = Some(cks); self.cks = Some(cks);
let header = Header::new(&self.dhs, self.pn, self.ns); let header = Header::new(&self.dhs, self.pn, self.ns);
let enc_header = header.encrypt(&self.hks.unwrap()); let enc_header = header.encrypt(&self.hks.unwrap(), ad);
self.ns += 1; self.ns += 1;
let encrypted = encrypt(&mk, plaintext, &header.concat()); let encrypted = encrypt(&mk, plaintext, &header.concat(ad));
(enc_header, encrypted.0, encrypted.1) (enc_header, encrypted.0, encrypted.1)
} }
fn try_skipped_message_keys(&mut self, enc_header: &(Vec<u8>, [u8; 12]), fn try_skipped_message_keys(&mut self, enc_header: &(Vec<u8>, [u8; 12]),
ciphertext: &[u8], nonce: &[u8; 12]) -> Option<Vec<u8>> { ciphertext: &[u8], nonce: &[u8; 12], ad: &[u8]) -> Option<Vec<u8>> {
let ret_data = self.mkskipped.clone().into_iter().find(|e| { let ret_data = self.mkskipped.clone().into_iter().find(|e| {
let header = Header::decrypt(&e.0.0, &enc_header.0, &enc_header.1); let header = Header::decrypt(&e.0.0, &enc_header.0, &enc_header.1);
@ -228,7 +228,7 @@ impl RatchetEncHeader {
let header = Header::decrypt(&data.0.0, &enc_header.0, &enc_header.1); let header = Header::decrypt(&data.0.0, &enc_header.0, &enc_header.1);
let mk = data.1; let mk = data.1;
self.mkskipped.remove(&(data.0.0, data.0.1)); self.mkskipped.remove(&(data.0.0, data.0.1));
Some(decrypt(&mk, ciphertext, &header.unwrap().concat(), nonce)) Some(decrypt(&mk, ciphertext, &header.unwrap().concat(ad), nonce))
} }
} }
} }
@ -278,8 +278,8 @@ impl RatchetEncHeader {
self.nhks = Some(nhks); self.nhks = Some(nhks);
} }
pub fn ratchet_decrypt(&mut self, enc_header: &(Vec<u8>, [u8; 12]), ciphertext: &[u8], nonce: &[u8; 12]) -> Vec<u8> { pub fn ratchet_decrypt(&mut self, enc_header: &(Vec<u8>, [u8; 12]), ciphertext: &[u8], nonce: &[u8; 12], ad: &[u8]) -> Vec<u8> {
let plaintext = self.try_skipped_message_keys(enc_header, ciphertext, nonce); let plaintext = self.try_skipped_message_keys(enc_header, ciphertext, nonce, ad);
if let Some(d) = plaintext { return d }; if let Some(d) = plaintext { return d };
let (header, dh_ratchet) = self.decrypt_header(enc_header).unwrap(); let (header, dh_ratchet) = self.decrypt_header(enc_header).unwrap();
if dh_ratchet { if dh_ratchet {
@ -290,6 +290,6 @@ impl RatchetEncHeader {
let (ckr, mk) = kdf_ck(&self.ckr.unwrap()); let (ckr, mk) = kdf_ck(&self.ckr.unwrap());
self.ckr = Some(ckr); self.ckr = Some(ckr);
self.nr += 1; self.nr += 1;
decrypt(&mk, ciphertext, &header.concat(), nonce) decrypt(&mk, ciphertext, &header.concat(ad), nonce)
} }
} }

44
tests/mod.rs
View file

@ -13,8 +13,8 @@ fn ratchet_enc_single() {
let (mut bob_ratchet, public_key) = Ratchet::init_bob(sk); let (mut bob_ratchet, public_key) = Ratchet::init_bob(sk);
let mut alice_ratchet = Ratchet::init_alice(sk, public_key); let mut alice_ratchet = Ratchet::init_alice(sk, public_key);
let data = include_bytes!("../src/header.rs").to_vec(); let data = include_bytes!("../src/header.rs").to_vec();
let (header, encrypted, nonce) = alice_ratchet.ratchet_encrypt(&data); let (header, encrypted, nonce) = alice_ratchet.ratchet_encrypt(&data, b"");
let decrypted = bob_ratchet.ratchet_decrypt(&header, &encrypted, &nonce); let decrypted = bob_ratchet.ratchet_decrypt(&header, &encrypted, &nonce, b"");
assert_eq!(data, decrypted) assert_eq!(data, decrypted)
} }
@ -24,10 +24,10 @@ fn ratchet_enc_skip() {
let (mut bob_ratchet, public_key) = Ratchet::init_bob(sk); let (mut bob_ratchet, public_key) = Ratchet::init_bob(sk);
let mut alice_ratchet = Ratchet::init_alice(sk, public_key); let mut alice_ratchet = Ratchet::init_alice(sk, public_key);
let data = include_bytes!("../src/header.rs").to_vec(); let data = include_bytes!("../src/header.rs").to_vec();
let (header1, encrypted1, nonce1) = alice_ratchet.ratchet_encrypt(&data); let (header1, encrypted1, nonce1) = alice_ratchet.ratchet_encrypt(&data, b"");
let (header2, encrypted2, nonce2) = alice_ratchet.ratchet_encrypt(&data); let (header2, encrypted2, nonce2) = alice_ratchet.ratchet_encrypt(&data, b"");
let decrypted2 = bob_ratchet.ratchet_decrypt(&header2, &encrypted2, &nonce2); let decrypted2 = bob_ratchet.ratchet_decrypt(&header2, &encrypted2, &nonce2, b"");
let decrypted1 = bob_ratchet.ratchet_decrypt(&header1, &encrypted1, &nonce1); let decrypted1 = bob_ratchet.ratchet_decrypt(&header1, &encrypted1, &nonce1, b"");
let comp_res = decrypted1 == data && decrypted2 == data; let comp_res = decrypted1 == data && decrypted2 == data;
assert!(comp_res) assert!(comp_res)
} }
@ -38,7 +38,7 @@ fn ratchet_panic_bob() {
let sk = [1; 32]; let sk = [1; 32];
let (mut bob_ratchet, _) = Ratchet::init_bob(sk); let (mut bob_ratchet, _) = Ratchet::init_bob(sk);
let data = include_bytes!("../src/header.rs").to_vec(); let data = include_bytes!("../src/header.rs").to_vec();
let (_, _, _) = bob_ratchet.ratchet_encrypt(&data); let (_, _, _) = bob_ratchet.ratchet_encrypt(&data, b"");
} }
#[test] #[test]
@ -47,10 +47,10 @@ fn ratchet_encryt_decrypt_four() {
let data = include_bytes!("../src/dh.rs").to_vec(); let data = include_bytes!("../src/dh.rs").to_vec();
let (mut bob_ratchet, public_key) = Ratchet::init_bob(sk); let (mut bob_ratchet, public_key) = Ratchet::init_bob(sk);
let mut alice_ratchet = Ratchet::init_alice(sk, public_key); let mut alice_ratchet = Ratchet::init_alice(sk, public_key);
let (header1, encrypted1, nonce1) = alice_ratchet.ratchet_encrypt(&data); let (header1, encrypted1, nonce1) = alice_ratchet.ratchet_encrypt(&data, b"");
let decrypted1 = bob_ratchet.ratchet_decrypt(&header1, &encrypted1, &nonce1); let decrypted1 = bob_ratchet.ratchet_decrypt(&header1, &encrypted1, &nonce1, b"");
let (header2, encrypted2, nonce2) = bob_ratchet.ratchet_encrypt(&data); let (header2, encrypted2, nonce2) = bob_ratchet.ratchet_encrypt(&data, b"");
let decrypted2 = alice_ratchet.ratchet_decrypt(&header2, &encrypted2, &nonce2); let decrypted2 = alice_ratchet.ratchet_decrypt(&header2, &encrypted2, &nonce2, b"");
let comp_res = decrypted1 == data && decrypted2 == data; let comp_res = decrypted1 == data && decrypted2 == data;
assert!(comp_res) assert!(comp_res)
} }
@ -80,8 +80,8 @@ fn ratchet_ench_enc_single() {
shared_hka, shared_hka,
shared_nhkb); shared_nhkb);
let data = include_bytes!("../src/header.rs").to_vec(); let data = include_bytes!("../src/header.rs").to_vec();
let (header, encrypted, nonce) = alice_ratchet.ratchet_encrypt(&data); let (header, encrypted, nonce) = alice_ratchet.ratchet_encrypt(&data, b"");
let decrypted = bob_ratchet.ratchet_decrypt(&header, &encrypted, &nonce); let decrypted = bob_ratchet.ratchet_decrypt(&header, &encrypted, &nonce, b"");
assert_eq!(data, decrypted) assert_eq!(data, decrypted)
} }
@ -98,10 +98,10 @@ fn ratchet_ench_enc_skip() {
shared_hka, shared_hka,
shared_nhkb); shared_nhkb);
let data = include_bytes!("../src/header.rs").to_vec(); let data = include_bytes!("../src/header.rs").to_vec();
let (header1, encrypted1, nonce1) = alice_ratchet.ratchet_encrypt(&data); let (header1, encrypted1, nonce1) = alice_ratchet.ratchet_encrypt(&data, b"");
let (header2, encrypted2, nonce2) = alice_ratchet.ratchet_encrypt(&data); let (header2, encrypted2, nonce2) = alice_ratchet.ratchet_encrypt(&data, b"");
let decrypted2 = bob_ratchet.ratchet_decrypt(&header2, &encrypted2, &nonce2); let decrypted2 = bob_ratchet.ratchet_decrypt(&header2, &encrypted2, &nonce2, b"");
let decrypted1 = bob_ratchet.ratchet_decrypt(&header1, &encrypted1, &nonce1); let decrypted1 = bob_ratchet.ratchet_decrypt(&header1, &encrypted1, &nonce1, b"");
let comp_res = decrypted1 == data && decrypted2 == data; let comp_res = decrypted1 == data && decrypted2 == data;
assert!(comp_res) assert!(comp_res)
} }
@ -116,7 +116,7 @@ fn ratchet_ench_panic_bob() {
shared_hka, shared_hka,
shared_nhkb); shared_nhkb);
let data = include_bytes!("../src/header.rs").to_vec(); let data = include_bytes!("../src/header.rs").to_vec();
let (_, _, _) = bob_ratchet.ratchet_encrypt(&data); let (_, _, _) = bob_ratchet.ratchet_encrypt(&data, b"");
} }
#[test] #[test]
@ -129,10 +129,10 @@ fn ratchet_ench_decrypt_four() {
shared_nhkb); shared_nhkb);
let mut alice_ratchet = RatchetEncHeader::init_alice(sk, public_key, shared_hka, shared_nhkb); let mut alice_ratchet = RatchetEncHeader::init_alice(sk, public_key, shared_hka, shared_nhkb);
let data = include_bytes!("../src/dh.rs").to_vec(); let data = include_bytes!("../src/dh.rs").to_vec();
let (header1, encrypted1, nonce1) = alice_ratchet.ratchet_encrypt(&data); let (header1, encrypted1, nonce1) = alice_ratchet.ratchet_encrypt(&data, b"");
let decrypted1 = bob_ratchet.ratchet_decrypt(&header1, &encrypted1, &nonce1); let decrypted1 = bob_ratchet.ratchet_decrypt(&header1, &encrypted1, &nonce1, b"");
let (header2, encrypted2, nonce2) = bob_ratchet.ratchet_encrypt(&data); let (header2, encrypted2, nonce2) = bob_ratchet.ratchet_encrypt(&data, b"");
let decrypted2 = alice_ratchet.ratchet_decrypt(&header2, &encrypted2, &nonce2); let decrypted2 = alice_ratchet.ratchet_decrypt(&header2, &encrypted2, &nonce2, b"");
let comp_res = decrypted1 == data && decrypted2 == data; let comp_res = decrypted1 == data && decrypted2 == data;
assert!(comp_res) assert!(comp_res)
} }