fluencelabs/js-libp2p-noise
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Create secure connection

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This commit is contained in:
morrigan 2019-11-25 13:27:55 +01:00
parent d51b40c986
commit 4c5d5e0893
4 changed files with 37 additions and 2 deletions
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3
package.json
View File

@ -54,8 +54,11 @@
"bcrypto": "^4.2.3",
"bn.js": "^5.0.0",
"buffer": "^5.4.3",
"it-buffer": "^0.1.1",
"it-length-prefixed": "^3.0.0",
"it-pair": "^1.0.0",
"it-pb-rpc": "^0.1.3",
"it-pipe": "^1.1.0",
"protobufjs": "~6.8.8"
}
}

2
src/crypto.ts
View File

@ -18,7 +18,7 @@ export function encryptStream(handshake: Handshake, session: NoiseSession) : IRe
// Decrypt received payload to the user
export function decryptStreams(handshake: Handshake, session: NoiseSession) : IReturnEncryptionWrapper {
export function decryptStream(handshake: Handshake, session: NoiseSession) : IReturnEncryptionWrapper {
return async function * (source) {
for await (const chunk of source) {
const decrypted = await handshake.decrypt(chunk, session);

22
src/noise.ts
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@ -1,6 +1,11 @@
import { x25519 } from 'bcrypto';
import { Buffer } from "buffer";
import Wrap from 'it-pb-rpc';
import DuplexPair from 'it-pair/duplex';
import ensureBuffer from 'it-buffer';
import pipe from 'it-pipe';
import lp from 'it-length-prefixed';
const { int16BEEncode, int16BEDecode } = lp;
import { Handshake } from "./handshake";
import { generateKeypair } from "./utils";
@ -80,7 +85,22 @@ export class Noise implements NoiseConnection {
await handshake.finish(session);
// Create encryption box/unbox wrapper
return await encryptStream(handshake, session);
const [secure, user] = DuplexPair();
const network = connection.unwrap();
pipe(
secure, // write to wrapper
ensureBuffer, // ensure any type of data is converted to buffer
encryptStream(handshake, session), // data is encrypted
lp.encode({ lengthEncoder: int16BEEncode }), // prefix with message length
network, // send to the remote peer
lp.decode({ lengthDecoder: int16BEDecode }), // read message length prefix
ensureBuffer, // ensure any type of data is converted to buffer
decryptStream(handshake, session), // decrypt the incoming data
secure // pipe to the wrapper
);
return user;
}

12
yarn.lock
View File

@ -2429,6 +2429,13 @@ isobject@^3.0.0, isobject@^3.0.1:
resolved "https://registry.yarnpkg.com/isobject/-/isobject-3.0.1.tgz#4e431e92b11a9731636aa1f9c8d1ccbcfdab78df"
integrity sha1-TkMekrEalzFjaqH5yNHMvP2reN8=
it-buffer@^0.1.1:
version "0.1.1"
resolved "https://registry.yarnpkg.com/it-buffer/-/it-buffer-0.1.1.tgz#64981e3e5e8a316df6b7305c8e0639603527d322"
integrity sha512-yydimO5mqeejnvFY8LE0ugEqVDq6S2wpNM1lXsEeHoKwUuKpTJXmnngOMiPFTPhNYdPqZrNwdx+6+ZayzcHn+g==
dependencies:
bl "^4.0.0"
it-handshake@^1.0.1:
version "1.0.1"
resolved "https://registry.yarnpkg.com/it-handshake/-/it-handshake-1.0.1.tgz#ed37a5622fcb82cfcb1e7eaebcf4872361cabe11"
@ -2462,6 +2469,11 @@ it-pb-rpc@^0.1.3:
it-handshake "^1.0.1"
it-length-prefixed "^3.0.0"
it-pipe@^1.1.0:
version "1.1.0"
resolved "https://registry.yarnpkg.com/it-pipe/-/it-pipe-1.1.0.tgz#f5964c6bb785dd776f11a62d1e75964787ab95ce"
integrity sha512-lF0/3qTVeth13TOnHVs0BTFaziwQF7m5Gg+E6JV0BXcLKutC92YjSi7bASgkPOXaLEb+YvNZrPorGMBIJvZfxg==
it-pushable@^1.4.0:
version "1.4.0"
resolved "https://registry.yarnpkg.com/it-pushable/-/it-pushable-1.4.0.tgz#772d81b40ccab93c963a20420ab1ef2ecfc9b97d"