kCFStreamSocketSecurityLevelNegotiatedSSL
Specifies that the highest level security protocol that can be negotiated be set as the security protocol for a socket stream.
Declaration
let kCFStreamSocketSecurityLevelNegotiatedSSL: CFStringSpecifies that the highest level security protocol that can be negotiated be set as the security protocol for a socket stream.
let kCFStreamSocketSecurityLevelNegotiatedSSL: CFString