[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Network](./puppeteer.protocol.network.md) > [SecurityDetails](./puppeteer.protocol.network.securitydetails.md) > [keyExchange](./puppeteer.protocol.network.securitydetails.keyexchange.md) ## Protocol.Network.SecurityDetails.keyExchange property Key Exchange used by the connection, or the empty string if not applicable. Signature: ```typescript keyExchange: string; ```