sender-key: Properly digest new uint8array format keys. THANKS @w3nder!!

src/Signal/Group/sender-chain-key.ts

@@ -12,6 +12,8 @@ export class SenderChainKey {
 		this.iteration = iteration
 		if (chainKey instanceof Buffer) {
 			this.chainKey = chainKey
+		} else if (chainKey instanceof Uint8Array) {
+			this.chainKey = Buffer.from(chainKey)
 		} else {
 			this.chainKey = Buffer.from(chainKey || [])
 		}

src/Signal/Group/sender-key-state.ts

@@ -98,6 +98,8 @@ export class SenderKeyState {
 		const publicKey = this.senderKeyStateStructure.senderSigningKey.public
 		if (publicKey instanceof Buffer) {
 			return publicKey
+		} else if (publicKey instanceof Uint8Array) {
+			return Buffer.from(publicKey)
 		} else if (typeof publicKey === 'string') {
 			return Buffer.from(publicKey, 'base64')
 		}
@@ -113,6 +115,8 @@ export class SenderKeyState {
 
 		if (privateKey instanceof Buffer) {
 			return privateKey
+		} else if (privateKey instanceof Uint8Array) {
+			return Buffer.from(privateKey)
 		} else if (typeof privateKey === 'string') {
 			return Buffer.from(privateKey, 'base64')
 		}