fluencelabs/js-libp2p-noise
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Add early data property to handshake

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This commit is contained in:
Matija Petrunic 2020-04-17 10:35:37 +02:00
parent 9bf6c2e85d
commit 6a1f17a2f6
4 changed files with 24 additions and 0 deletions
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1
src/@types/handshake-interface.ts
View File

@ -5,6 +5,7 @@ import PeerId from "peer-id";
export interface IHandshake {
session: NoiseSession;
remotePeer: PeerId;
earlyData: Uint8Array;
encrypt(plaintext: bytes, session: NoiseSession): bytes;
decrypt(ciphertext: bytes, session: NoiseSession): {plaintext: bytes; valid: boolean};
}

10
src/handshake-ik.ts
View File

@ -15,6 +15,7 @@ export class IKHandshake implements IHandshake {
public isInitiator: boolean;
public session: NoiseSession;
public remotePeer!: PeerId;
public earlyData: Uint8Array;
private payload: bytes;
private prologue: bytes32;
@ -42,6 +43,7 @@ export class IKHandshake implements IHandshake {
}
this.ik = handshake || new IK();
this.session = this.ik.initSession(this.isInitiator, this.prologue, this.staticKeypair, remoteStaticKey);
this.earlyData = Buffer.alloc(0)
}
public async stage0(): Promise<void> {
@ -63,6 +65,7 @@ export class IKHandshake implements IHandshake {
const decodedPayload = await decodePayload(plaintext);
this.remotePeer = this.remotePeer || await getPeerIdFromPayload(decodedPayload);
await verifySignedPayload(this.session.hs.rs, decodedPayload, this.remotePeer);
this.setEarlyData(decodedPayload.data);
logger("IK Stage 0 - Responder successfully verified payload!");
} catch (e) {
logger("Responder breaking up with IK handshake in stage 0.");
@ -86,6 +89,7 @@ export class IKHandshake implements IHandshake {
const decodedPayload = await decodePayload(plaintext);
this.remotePeer = this.remotePeer || await getPeerIdFromPayload(decodedPayload);
await verifySignedPayload(receivedMessageBuffer.ns.slice(0, 32), decodedPayload, this.remotePeer);
this.setEarlyData(decodedPayload.data);
logger("IK Stage 1 - Initiator successfully verified payload!");
} catch (e) {
logger("Initiator breaking up with IK handshake in stage 1.");
@ -128,4 +132,10 @@ export class IKHandshake implements IHandshake {
return encryption ? session.cs2 : session.cs1;
}
}
private setEarlyData(data: Uint8Array|null|undefined): void {
if(data){
this.earlyData = data;
}
}
}

3
src/handshake-xx-fallback.ts
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@ -66,6 +66,9 @@ export class XXFallbackHandshake extends XXHandshake {
const decodedPayload = await decodePayload(plaintext);
this.remotePeer = this.remotePeer || await getPeerIdFromPayload(decodedPayload);
await verifySignedPayload(this.session.hs.rs, decodedPayload, this.remotePeer);
if(decodedPayload.data){
this.earlyData = decodedPayload.data;
}
} catch (e) {
throw new Error(`Error occurred while verifying signed payload from responder: ${e.message}`);
}

10
src/handshake-xx.ts
View File

@ -19,6 +19,7 @@ export class XXHandshake implements IHandshake {
public isInitiator: boolean;
public session: NoiseSession;
public remotePeer!: PeerId;
public earlyData: Uint8Array;
protected payload: bytes;
protected connection: WrappedConnection;
@ -46,6 +47,7 @@ export class XXHandshake implements IHandshake {
}
this.xx = handshake || new XX();
this.session = this.xx.initSession(this.isInitiator, this.prologue, this.staticKeypair);
this.earlyData = Buffer.alloc(0)
}
// stage 0
@ -82,6 +84,7 @@ export class XXHandshake implements IHandshake {
const decodedPayload = await decodePayload(plaintext);
this.remotePeer = this.remotePeer || await getPeerIdFromPayload(decodedPayload);
this.remotePeer = await verifySignedPayload(receivedMessageBuffer.ns, decodedPayload, this.remotePeer);
this.setEarlyData(decodedPayload.data)
} catch (e) {
throw new Error(`Error occurred while verifying signed payload: ${e.message}`);
}
@ -114,6 +117,7 @@ export class XXHandshake implements IHandshake {
const decodedPayload = await decodePayload(plaintext);
this.remotePeer = this.remotePeer || await getPeerIdFromPayload(decodedPayload);
await verifySignedPayload(this.session.hs.rs, decodedPayload, this.remotePeer);
this.setEarlyData(decodedPayload.data)
} catch (e) {
throw new Error(`Error occurred while verifying signed payload: ${e.message}`);
}
@ -146,4 +150,10 @@ export class XXHandshake implements IHandshake {
return encryption ? session.cs2 : session.cs1;
}
}
private setEarlyData(data: Uint8Array|null|undefined): void {
if(data){
this.earlyData = data
}
}
}