CHAP vs PAP | Difference | Comparison

Challenge handshake authentication protocol(CHAP) and Password authentication protocol(PAP) are both authentication protocols used by point-to-point protocol(PPP). CHAP and PAP are authentication protocols used to verify the identity of a user attempting to access a remote server. So let's debate the CHAP Vs PAP to understand more about it.

What is CHAP?

CHAP stands for Challenge handshake authentication protocol(CHAP). It controls the identity of the peer, and CHAP is essentially a means of encrypted authentication. In order to safeguard it from hackers, it also employs an encryption mechanism to simply transfer the authentication data. On the Internet, it is often utilized. 

Related article: Difference between SLIP and PPP

What is PAP?

The PAP stands for the password authentication protocol. It offers a straightforward technique for a distant node to create its identity and a bidirectional relationship. These are typically utilized on open FTP sites as well as other public spaces. 

Related article: Difference between HDLC and PPP

CHAP Vs PAP | Difference between CHAP and PAP:

  • CHAP stands for challenge handshake authentication protocol. While PAP stands for the password authentication protocol.
  • CHAP is a three-step process of exchange of a shared secret. While PAP is a two-step process to verify the identity of the client.
  • CHAP authentication is requested at the initial time of the establishment of a link or connection and can also be requested after the establishment of a link or connection. While PAP authentication is only requested at the initial time of the establishment of a link or connection.
  • CHAP protocol is highly secure in implementation the actual password is never transmitted through the link. While the PAP is a less secure implementation as actual passwords are transmitted without any encryption code or pattern through the link.
  • In CHAP only the username is transmitted through the link. While in PAP both the user name and passwords are transmitted through the link.
  • In CHAP encrypted usernames and passwords are usually transmitted in this type of authentication. While in PAP unencrypted usernames and passwords are usually transmitted in plain text. 
  • In CHAP communication protocol simply authenticates a user or a network host to an authentication entity. While in PAP also allow the point-to-point protocol to validate users. Check and verify users. 
  • CHAP effectively provides protection and prevention from trial and error attacks. While PAP does not provide protection and prevention from trial and error attacks.
  • CHAP can also do repeated midsession authentications. While in PAP cannot do repeated midsession authentication.
  • CHAP is used by remote users, routers, and NASS simply to provide authentication before connectivity. While in PAP usage has decreased due to security issues. 
  • In CHAP, authentication is done on both sides. While PAP, authentication is done only at the caller side or client side. 
Thank you for reading this article. Still, if you have any questions or queries in your mind on the CHAP Vs PAP then please ask us in the comment section below.

Explore more information:

Challenge handshake authentication protocol(CHAP) and Password authentication protocol(PAP) are both authentication protocols used by point-to-point protocol(PPP). CHAP and PAP are authentication protocols used to verify the identity of a user attempting to access a remote server. So let's debate the CHAP Vs PAP to understand more about it.

What is CHAP?

CHAP stands for Challenge handshake authentication protocol(CHAP). It controls the identity of the peer, and CHAP is essentially a means of encrypted authentication. In order to safeguard it from hackers, it also employs an encryption mechanism to simply transfer the authentication data. On the Internet, it is often utilized. 

Related article: Difference between SLIP and PPP

What is PAP?

The PAP stands for the password authentication protocol. It offers a straightforward technique for a distant node to create its identity and a bidirectional relationship. These are typically utilized on open FTP sites as well as other public spaces. 

Related article: Difference between HDLC and PPP

CHAP Vs PAP | Difference between CHAP and PAP:

  • CHAP stands for challenge handshake authentication protocol. While PAP stands for the password authentication protocol.
  • CHAP is a three-step process of exchange of a shared secret. While PAP is a two-step process to verify the identity of the client.
  • CHAP authentication is requested at the initial time of the establishment of a link or connection and can also be requested after the establishment of a link or connection. While PAP authentication is only requested at the initial time of the establishment of a link or connection.
  • CHAP protocol is highly secure in implementation the actual password is never transmitted through the link. While the PAP is a less secure implementation as actual passwords are transmitted without any encryption code or pattern through the link.
  • In CHAP only the username is transmitted through the link. While in PAP both the user name and passwords are transmitted through the link.
  • In CHAP encrypted usernames and passwords are usually transmitted in this type of authentication. While in PAP unencrypted usernames and passwords are usually transmitted in plain text. 
  • In CHAP communication protocol simply authenticates a user or a network host to an authentication entity. While in PAP also allow the point-to-point protocol to validate users. Check and verify users. 
  • CHAP effectively provides protection and prevention from trial and error attacks. While PAP does not provide protection and prevention from trial and error attacks.
  • CHAP can also do repeated midsession authentications. While in PAP cannot do repeated midsession authentication.
  • CHAP is used by remote users, routers, and NASS simply to provide authentication before connectivity. While in PAP usage has decreased due to security issues. 
  • In CHAP, authentication is done on both sides. While PAP, authentication is done only at the caller side or client side. 
Thank you for reading this article. Still, if you have any questions or queries in your mind on the CHAP Vs PAP then please ask us in the comment section below.

Explore more information:

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