[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Security](./puppeteer.protocol.security.md) > [CertificateSecurityState](./puppeteer.protocol.security.certificatesecuritystate.md) > [cipher](./puppeteer.protocol.security.certificatesecuritystate.cipher.md) ## Protocol.Security.CertificateSecurityState.cipher property Cipher name. Signature: ```typescript cipher: string; ```