fluencelabs/js-libp2p-noise
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Add encryption methods

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This commit is contained in:
morrigan 2019-11-01 11:30:28 +01:00
parent e55fa206fd
commit 175d8940be
3 changed files with 45 additions and 2 deletions
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3
package.json
View File

@ -39,6 +39,7 @@
"dependencies": {
"bn.js": "^5.0.0",
"buffer": "^5.4.3",
"libp2p-crypto": "^0.17.1"
"libp2p-crypto": "^0.17.1",
"sodium-native": "^2.4.6"
}
}

28
src/xx.ts
View File

@ -1,6 +1,7 @@
import {bytes32, bytes16, uint32, uint64, bytes} from './types/basic'
import { Buffer } from 'buffer';
import * as crypto from 'libp2p-crypto';
import * as sodium from 'sodium-native';
type KeyPair = {
publicKey: bytes32,
@ -60,11 +61,38 @@ class XXHandshake {
return {ss, s, e, rs, re, psk};
}
incrementNonce(n: uint32) : uint32 {
return n + 1;
}
encrypt(k: bytes32, n: uint32, ad: bytes, plaintext: bytes) : bytes {
const ElongatedNonce = sodium.sodium_malloc(sodium.crypto_aead_xchacha20poly1305_ietf_NPUBBYTES); // 12U ?
sodium.sodium_memzero(ElongatedNonce);
ElongatedNonce.set(n, 16);
const clen = plaintext.length + sodium.crypto_aead_xchacha20poly1305_ietf_ABYTES;
const c = sodium.sodium_malloc(clen);
sodium.crypto_aead_xchacha20poly1305_ietf_encrypt(c, plaintext, ad, null, ElongatedNonce, k);
}
// Cipher state related
initializeKey(k: bytes32) : CipherState {
const n = minNonce;
return { k, n };
}
setNonce(cs: CipherState, nonce: uint32) {
cs.n = nonce;
}
encryptWithAd(cs: CipherState, ad: bytes, plaintext: bytes) : bytes {
const e = this.encrypt(cs.k, cs.n, ad, plaintext);
this.setNonce(cs, this.incrementNonce(cs.n));
return e;
}
// Symmetric state related
async initializeSymmetric(protocolName: string) : Promise<SymmetricState> {
const h = await this.hashProtocolName(protocolName);
const ck = h;

16
yarn.lock
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@ -1984,7 +1984,7 @@ inherits@2, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.3:
resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.4.tgz#0fa2c64f932917c3433a0ded55363aae37416b7c"
integrity sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==
ini@~1.3.0:
ini@^1.3.5, ini@~1.3.0:
version "1.3.5"
resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"
integrity sha512-RZY5huIKCMRWDUqZlEi72f/lmXKMvuszcMBduliQ3nnWbx9X/ZBQO7DijMEYS9EhHBb2qacRUMtC7svLwe0lcw==
@ -2616,6 +2616,11 @@ node-forge@~0.9.1:
resolved "https://registry.yarnpkg.com/node-forge/-/node-forge-0.9.1.tgz#775368e6846558ab6676858a4d8c6e8d16c677b5"
integrity sha512-G6RlQt5Sb4GMBzXvhfkeFmbqR6MzhtnT7VTHuLadjkii3rdYHNdw0m8zA4BTxVIh68FicCQ2NSUANpsqkr9jvQ==
node-gyp-build@^4.1.0:
version "4.1.1"
resolved "https://registry.yarnpkg.com/node-gyp-build/-/node-gyp-build-4.1.1.tgz#d7270b5d86717068d114cc57fff352f96d745feb"
integrity sha512-dSq1xmcPDKPZ2EED2S6zw/b9NKsqzXRE6dVr8TVQnI3FJOTteUMuqF3Qqs6LZg+mLGYJWqQzMbIjMtJqTv87nQ==
node-modules-regexp@^1.0.0:
version "1.0.0"
resolved "https://registry.yarnpkg.com/node-modules-regexp/-/node-modules-regexp-1.0.0.tgz#8d9dbe28964a4ac5712e9131642107c71e90ec40"
@ -3305,6 +3310,15 @@ snapdragon@^0.8.1:
source-map-resolve "^0.5.0"
use "^3.1.0"
sodium-native@^2.4.6:
version "2.4.6"
resolved "https://registry.yarnpkg.com/sodium-native/-/sodium-native-2.4.6.tgz#8a8173095e8cf4f997de393a2ba106c34870cac2"
integrity sha512-Ro9lhTjot8M01nwKLXiqLSmjR7B8o+Wg4HmJUjEShw/q6XPlNMzjPkA1VJKaMH8SO8fJ/sggAKVwreTaFszS2Q==
dependencies:
ini "^1.3.5"
nan "^2.14.0"
node-gyp-build "^4.1.0"
source-map-resolve@^0.5.0:
version "0.5.2"
resolved "https://registry.yarnpkg.com/source-map-resolve/-/source-map-resolve-0.5.2.tgz#72e2cc34095543e43b2c62b2c4c10d4a9054f259"