PAP和CHAP协议各自的特点是什么 PAP(Password Authentication Protocol)协议两次握手机制,使用明文方式传输密码,对方控制连接请求,所以对攻击的处理效果不好。 CHAP(Challenge Handshake Authentication Protocol)协议三次握手机制,被验证方将MD5算法生成的密文和自己的用户名发回验证方,有效避免再生攻击和尝试攻击。
密码验证协议(PAP,Password Authentication Protocol)通过两握手机制,为建立远程节点的验证提供了一个简单的方法。PAP 不是一种健壮的身份验证协议。身份验证时在链路上以明文发送, 而且由于验证重试的频率和次数由远程节点来控制, 因此不能防止回放攻击和重复的尝试攻击。
首先被认证方向主认证方发送认证请求(包含用户名和密码),主认证方接到认证请求,再根据被认证方发送来的用户名去到自己的数据库认证用户名密码是否正确,如果密码正确,PAP认证通过,如果用户名密码错误,PAP认证未通过。 二、CHAP认证协议(ChallengeHandshakeAuthenticationProtocol,质询握手认证协议) CHAP认证过程比较复杂,三次...
Claim: CHAP can do multiple authentications per session, and PAP cannot. It is true thatRFC 1994 Section 2says that in PPP, any CHAP authentication “is done upon initial link establishment, and MAY be repeated anytime after the link has been established.” (emphasis in original). However,...
What are the differences between PAP vs. CHAP? CHAP came along in 1996 largely as a response to the authentication weaknesses inherent in PAP. Instead of a two-way handshake, CHAP uses a three-way handshake and doesn't send the password across the network. CHAP uses an encrypted hash for...
Therefore, on the called party, you are advised to configure PAP or CHAP authentication on both physical interfaces and the dialer interface. When a physical interface receives a DCC request, it starts PPP negotiation and verifies the identity of the calling party, and then...
Troubleshooting PPP (CHAP or PAP) AuthenticationPointtoPoint Protocol (PPP)
Authentication type for PAP or CHAP. C# 複製 [Android.Runtime.Register("AUTH_TYPE_PAP_OR_CHAP", ApiSince=28)] [System.Obsolete("This constant will be removed in the future version. Use Android.Telephony.Data.AuthType enum directly instead of this field.", true)] public const Android.Tele...
PPP的两种配置方法(pap和chap) PAP的配置 R1上的配置 [R1]int s4/0/0 [R1-Serial4/0/0]ppp authentication-mode pap [R1-Serial4/0/0]q [R1]aaa [R1-aaa]local-user huawei password cipher 123456 Info: Add a new user. [R1-aaa]local-user huawei service-type ppp...
Is the Router Performing CHAP or PAP Authentication? To determine if the router is performing CHAP or PAP authentication, look for these lines in the debug ppp negotiation and debug ppp authentication output: CHAP Look for CHAP in the AUTHENTICATING phase: *Mar 7 21:16:29.468: BR0:1 PPP: ...