Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Sealed Boxes #219

Closed
wants to merge 3 commits into from
Closed

Sealed Boxes #219

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
e5dcb37
Add sealedbox to nacl.js
CMEONE Jun 18, 2021
d9ffe43
Add sealedbox to nacl-fast.js
CMEONE Jun 18, 2021
9578dc6
Dedicate work to public domain
CMEONE Jun 18, 2021
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
9 changes: 5 additions & 4 deletions AUTHORS.md
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,11 +1,12 @@
List of TweetNaCl.js authors
============================

Format: Name (GitHub username or URL)
Format: Name (GitHub username and URL)

* Dmitry Chestnykh (@dchest)
* Devi Mandiri (@devi)
* AndSDev (@AndSDev)
* Dmitry Chestnykh ([@dchest](https://github.com/dchest))
* Devi Mandiri ([@devi](https://github.com/devi))
* Kabir R. ([@CMEONE](https://github.com/CMEONE))
* AndSDev ([@AndSDev](https://github.com/AndSDev))

List of authors of third-party public domain code from which TweetNaCl.js code was derived
==========================================================================================
Expand Down
39 changes: 39 additions & 0 deletions nacl-fast.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2082,6 +2082,9 @@ var crypto_secretbox_KEYBYTES = 32,
crypto_box_NONCEBYTES = crypto_secretbox_NONCEBYTES,
crypto_box_ZEROBYTES = crypto_secretbox_ZEROBYTES,
crypto_box_BOXZEROBYTES = crypto_secretbox_BOXZEROBYTES,
crypto_sealedbox_NONCEBYTES = crypto_secretbox_NONCEBYTES,
crypto_sealedbox_PUBLICKEYBYTES = 32,
crypto_sealedbox_SECRETKEYBYTES = 32,
crypto_sign_BYTES = 64,
crypto_sign_PUBLICKEYBYTES = 32,
crypto_sign_SECRETKEYBYTES = 64,
Expand Down Expand Up @@ -2124,6 +2127,9 @@ nacl.lowlevel = {
crypto_box_NONCEBYTES: crypto_box_NONCEBYTES,
crypto_box_ZEROBYTES: crypto_box_ZEROBYTES,
crypto_box_BOXZEROBYTES: crypto_box_BOXZEROBYTES,
crypto_sealedbox_NONCEBYTES: crypto_sealedbox_NONCEBYTES,
crypto_sealedbox_PUBLICKEYBYTES: crypto_sealedbox_PUBLICKEYBYTES,
crypto_sealedbox_SECRETKEYBYTES: crypto_sealedbox_SECRETKEYBYTES,
crypto_sign_BYTES: crypto_sign_BYTES,
crypto_sign_PUBLICKEYBYTES: crypto_sign_PUBLICKEYBYTES,
crypto_sign_SECRETKEYBYTES: crypto_sign_SECRETKEYBYTES,
Expand Down Expand Up @@ -2159,6 +2165,12 @@ function checkBoxLengths(pk, sk) {
if (sk.length !== crypto_box_SECRETKEYBYTES) throw new Error('bad secret key size');
}

function checkSealedBoxLengths(sk, n, m) {
if (sk.length !== crypto_sealedbox_SECRETKEYBYTES) throw new Error('bad secret key size');
if (n.length !== crypto_sealedbox_NONCEBYTES) throw new Error('bad nonce size');
if (m.length <= crypto_sealedbox_PUBLICKEYBYTES) throw new Error('bad message size');
}

function checkArrayTypes() {
for (var i = 0; i < arguments.length; i++) {
if (!(arguments[i] instanceof Uint8Array))
Expand Down Expand Up @@ -2265,6 +2277,33 @@ nacl.box.sharedKeyLength = crypto_box_BEFORENMBYTES;
nacl.box.nonceLength = crypto_box_NONCEBYTES;
nacl.box.overheadLength = nacl.secretbox.overheadLength;

nacl.sealedbox = function(msg, nonce, publicKey) {
checkArrayTypes(msg, nonce, publicKey);
checkLengths(publicKey, nonce);
var ekp = nacl.box.keyPair();
var box = nacl.box(msg, nonce, publicKey, ekp.secretKey);
for (var i = 0; i < ekp.secretKey.length; i++) ekp.secretKey[i] = 0;
var m = new Uint8Array(ekp.publicKey.length + box.length);
for (var i = 0; i < ekp.publicKey.length; i++) m[i] = ekp.publicKey[i];
for (var i = 0; i < box.length; i++) m[ekp.publicKey.length + i] = box[i];
return m;
}

nacl.sealedbox.open = function(msg, nonce, secretKey) {
checkArrayTypes(msg, nonce, secretKey);
checkSealedBoxLengths(secretKey, nonce, msg);
var epk = new Uint8Array(crypto_box_PUBLICKEYBYTES);
for (var i = 0; i < epk.length; i++) epk[i] = msg[i];
var m = new Uint8Array(msg.length - crypto_box_PUBLICKEYBYTES);
for (var i = 0; i < m.length; i++) m[i] = msg[crypto_box_PUBLICKEYBYTES + i];
return nacl.box.open(m, nonce, epk, secretKey);
}

nacl.sealedbox.publicKeyLength = crypto_sealedbox_PUBLICKEYBYTES;
nacl.sealedbox.secretKeyLength = crypto_sealedbox_SECRETKEYBYTES;
nacl.sealedbox.nonceLength = crypto_sealedbox_NONCEBYTES;
nacl.sealedbox.overheadLength = nacl.box.overheadLength + crypto_sealedbox_PUBLICKEYBYTES;

nacl.sign = function(msg, secretKey) {
checkArrayTypes(msg, secretKey);
if (secretKey.length !== crypto_sign_SECRETKEYBYTES)
Expand Down
39 changes: 39 additions & 0 deletions nacl.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -869,6 +869,9 @@ var crypto_secretbox_KEYBYTES = 32,
crypto_box_NONCEBYTES = crypto_secretbox_NONCEBYTES,
crypto_box_ZEROBYTES = crypto_secretbox_ZEROBYTES,
crypto_box_BOXZEROBYTES = crypto_secretbox_BOXZEROBYTES,
crypto_sealedbox_NONCEBYTES = crypto_secretbox_NONCEBYTES,
crypto_sealedbox_PUBLICKEYBYTES = 32,
crypto_sealedbox_SECRETKEYBYTES = 32,
crypto_sign_BYTES = 64,
crypto_sign_PUBLICKEYBYTES = 32,
crypto_sign_SECRETKEYBYTES = 64,
Expand Down Expand Up @@ -911,6 +914,9 @@ nacl.lowlevel = {
crypto_box_NONCEBYTES: crypto_box_NONCEBYTES,
crypto_box_ZEROBYTES: crypto_box_ZEROBYTES,
crypto_box_BOXZEROBYTES: crypto_box_BOXZEROBYTES,
crypto_sealedbox_NONCEBYTES: crypto_sealedbox_NONCEBYTES,
crypto_sealedbox_PUBLICKEYBYTES: crypto_sealedbox_PUBLICKEYBYTES,
crypto_sealedbox_SECRETKEYBYTES: crypto_sealedbox_SECRETKEYBYTES,
crypto_sign_BYTES: crypto_sign_BYTES,
crypto_sign_PUBLICKEYBYTES: crypto_sign_PUBLICKEYBYTES,
crypto_sign_SECRETKEYBYTES: crypto_sign_SECRETKEYBYTES,
Expand Down Expand Up @@ -946,6 +952,12 @@ function checkBoxLengths(pk, sk) {
if (sk.length !== crypto_box_SECRETKEYBYTES) throw new Error('bad secret key size');
}

function checkSealedBoxLengths(sk, n, m) {
if (sk.length !== crypto_sealedbox_SECRETKEYBYTES) throw new Error('bad secret key size');
if (n.length !== crypto_sealedbox_NONCEBYTES) throw new Error('bad nonce size');
if (m.length <= crypto_sealedbox_PUBLICKEYBYTES) throw new Error('bad message size');
}

function checkArrayTypes() {
for (var i = 0; i < arguments.length; i++) {
if (!(arguments[i] instanceof Uint8Array))
Expand Down Expand Up @@ -1052,6 +1064,33 @@ nacl.box.sharedKeyLength = crypto_box_BEFORENMBYTES;
nacl.box.nonceLength = crypto_box_NONCEBYTES;
nacl.box.overheadLength = nacl.secretbox.overheadLength;

nacl.sealedbox = function(msg, nonce, publicKey) {
checkArrayTypes(msg, nonce, publicKey);
checkLengths(publicKey, nonce);
var ekp = nacl.box.keyPair();
var box = nacl.box(msg, nonce, publicKey, ekp.secretKey);
for (var i = 0; i < ekp.secretKey.length; i++) ekp.secretKey[i] = 0;
var m = new Uint8Array(ekp.publicKey.length + box.length);
for (var i = 0; i < ekp.publicKey.length; i++) m[i] = ekp.publicKey[i];
for (var i = 0; i < box.length; i++) m[ekp.publicKey.length + i] = box[i];
return m;
}

nacl.sealedbox.open = function(msg, nonce, secretKey) {
checkArrayTypes(msg, nonce, secretKey);
checkSealedBoxLengths(secretKey, nonce, msg);
var epk = new Uint8Array(crypto_box_PUBLICKEYBYTES);
for (var i = 0; i < epk.length; i++) epk[i] = msg[i];
var m = new Uint8Array(msg.length - crypto_box_PUBLICKEYBYTES);
for (var i = 0; i < m.length; i++) m[i] = msg[crypto_box_PUBLICKEYBYTES + i];
return nacl.box.open(m, nonce, epk, secretKey);
}

nacl.sealedbox.publicKeyLength = crypto_sealedbox_PUBLICKEYBYTES;
nacl.sealedbox.secretKeyLength = crypto_sealedbox_SECRETKEYBYTES;
nacl.sealedbox.nonceLength = crypto_sealedbox_NONCEBYTES;
nacl.sealedbox.overheadLength = nacl.box.overheadLength + crypto_sealedbox_PUBLICKEYBYTES;

nacl.sign = function(msg, secretKey) {
checkArrayTypes(msg, secretKey);
if (secretKey.length !== crypto_sign_SECRETKEYBYTES)
Expand Down