git ssb - implement encryption, decryption · Dominic/ssb-keys@17afc236

Dominic Tarr committed on 7/1/2015, 10:53:00 PM
Parent: 1a34ba680e6e6efa7e5c46b8684644ecba505534

index.js	changed
package.json	changed

index.jsView
		@@ -7,10 +7,13 @@
7	7	var createHmac = require('hmac')
8	8	var Blake2s = require('blake2s')
9	9
10	10	var ecc = require('./eccjs')
	11	+var sodium = require('sodium').api
11	12	var isRef = require('ssb-ref')
12	13
	14	+var pb = require('private-box')
	15	+
13	16	//UTILS
14	17
15	18	function clone (obj) {
16	19	var _obj = {}
		@@ -305,6 +308,26 @@
305	308	// ts: Date.now(),
306	309	// public: keys.public
307	310	// })
308	311	//}
309		-//
310	312
	313	+exports.box = function (msg, recipients) {
	314	+ msg = new Buffer(JSON.stringify(msg))
	315	+
	316	+ recipients = recipients.map(function (keys) {
	317	+ var public = keys.public \|\| keys
	318	+ return sodium.crypto_sign_ed25519_pk_to_curve25519(toBuffer(public))
	319	+ })
	320	+
	321	+ //it's since the nonce is 24 bytes (a multiple of 3)
	322	+ //it's possible to concatenate the base64 strings
	323	+ //and still have a valid base64 string.
	324	+ return pb.multibox(msg, recipients).toString('base64')+'.box'
	325	+}
	326	+
	327	+exports.unbox = function (boxed, keys) {
	328	+ boxed = toBuffer(boxed)
	329	+ var sk = sodium.crypto_sign_ed25519_sk_to_curve25519(toBuffer(keys.private \|\| keys))
	330	+
	331	+ var msg = pb.multibox_open(boxed, sk)
	332	+ if(msg) return JSON.parse(''+msg)
	333	+}

package.jsonView
		@@ -13,13 +13,14 @@
13	13	"eccjs": "git://github.com/dominictarr/eccjs.git#586f6d47507184a2efe84684ed0a30605cbc43a5",
14	14	"hmac": "~1.0.1",
15	15	"libsodium-wrappers": "^0.2.8",
16	16	"mkdirp": "~0.5.0",
17		- "sodium": "^1.0.17",
	17	+ "private-box": "0.0.0",
	18	+ "sodium": "git://github.com/dominictarr/node-sodium.git",
18	19	"ssb-ref": "~0.0.0"
19	20	},
20	21	"devDependencies": {
21		- "tape": "~3.0.0"
	22	+ "tape": "^3.0.3"
22	23	},
23	24	"browser": {
24	25	"./sodium": "./browser-sodium"
25	26	},

Dominic / ssb-keys