🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsРусскийالعربيةفارسی한국어中文日本語EntityQ1060131· pop 22· linked from 55 articlesChallenge-Handshake Authentication ProtocolAlso known as CHAP, Challenge Handshake Authentication Protocolauthentication protocol for the point-to-point protocolAvailable in 22 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةAzerbaijaniConnectionsOpenIDEntityPassword Authentication ProtocolEntityCategoriesAuthentication protocolsInternet protocolsPassword authentication