Remove MSC3903 v1 support

This is a breaking change in code marked unstable/experimental

Author: hughns

src/rendezvous/channels/MSC3903ECDHv2RendezvousChannel.ts

@@ -30,23 +30,23 @@ import { crypto, subtleCrypto, TextEncoder } from "../../crypto/crypto";
 import { generateDecimalSas } from "../../crypto/verification/SASDecimal";
 import { UnstableValue } from "../../NamespacedValue";
 
-const ECDH = new UnstableValue(
+const ECDH_V2 = new UnstableValue(
     "m.rendezvous.v2.curve25519-aes-sha256",
     "org.matrix.msc3903.rendezvous.v2.curve25519-aes-sha256",
 );
 
 export interface ECDHv2RendezvousCode extends RendezvousCode {
     rendezvous: {
         transport: RendezvousTransportDetails;
-        algorithm: typeof ECDH.name | typeof ECDH.altName;
+        algorithm: typeof ECDH_V2.name | typeof ECDH_V2.altName;
         key: string;
     };
 }
 
 export type MSC3903ECDHPayload = PlainTextPayload | EncryptedPayload;
 
 export interface PlainTextPayload {
-    algorithm: typeof ECDH.name | typeof ECDH.altName;
+    algorithm: typeof ECDH_V2.name | typeof ECDH_V2.altName;
     key?: string;
 }
 
@@ -90,11 +90,11 @@ export class MSC3903ECDHv2RendezvousChannel<T> implements RendezvousChannel<T> {
             throw new Error("Code already generated");
         }
 
-        await this.transport.send({ algorithm: ECDH.name });
+        await this.transport.send({ algorithm: ECDH_V2.name });
 
         const rendezvous: ECDHv2RendezvousCode = {
             rendezvous: {
-                algorithm: ECDH.name,
+                algorithm: ECDH_V2.name,
                 key: encodeUnpaddedBase64(this.ourPublicKey),
                 transport: await this.transport.details(),
             },
@@ -123,7 +123,7 @@ export class MSC3903ECDHv2RendezvousChannel<T> implements RendezvousChannel<T> {
             }
             const res = rawRes as Partial<PlainTextPayload>;
             const { key, algorithm } = res;
-            if (!algorithm || !ECDH.matches(algorithm) || !key) {
+            if (!algorithm || !ECDH_V2.matches(algorithm) || !key) {
                 throw new RendezvousError(
                     "Unsupported algorithm: " + algorithm,
                     RendezvousFailureReason.UnsupportedAlgorithm,
@@ -134,7 +134,7 @@ export class MSC3903ECDHv2RendezvousChannel<T> implements RendezvousChannel<T> {
         } else {
             // send our public key unencrypted
             await this.transport.send({
-                algorithm: ECDH.name,
+                algorithm: ECDH_V2.name,
                 key: encodeUnpaddedBase64(this.ourPublicKey),
             });
         }
@@ -145,7 +145,7 @@ export class MSC3903ECDHv2RendezvousChannel<T> implements RendezvousChannel<T> {
 
         const initiatorKey = isInitiator ? this.ourPublicKey : this.theirPublicKey!;
         const recipientKey = isInitiator ? this.theirPublicKey! : this.ourPublicKey;
-        let aesInfo = ECDH.name;
+        let aesInfo = ECDH_V2.name;
         aesInfo += `|${encodeUnpaddedBase64(initiatorKey)}`;
         aesInfo += `|${encodeUnpaddedBase64(recipientKey)}`;