ZyXEL MM-7201 User Guide - Page 314

Introduction to HTTPS

Page 314 highlights

Chapter 40 Access Control 1 Host Identification The SSH client sends a connection request to the SSH server. The server identifies itself with a host key. The client encrypts a randomly generated session key with the host key and server key and sends the result back to the server. The client automatically saves any new server public keys. In subsequent connections, the server public key is checked against the saved version on the client computer. 2 Encryption Method Once the identification is verified, both the client and server must agree on the type of encryption method to use. 3 Authentication and Data Transmission After the identification is verified and data encryption activated, a secure tunnel is established between the client and the server. The client then sends its authentication information (user name and password) to the server to log in to the server. 40.4.2 SSH Implementation on the Switch Your switch supports SSH version 2 using RSA authentication and three encryption methods (DES, 3DES and Blowfish). The SSH server is implemented on the switch for remote management and file transfer on port 22. Only one SSH connection is allowed at a time. 40.4.2.1 Requirements for Using SSH You must install an SSH client program on a client computer (Windows or Linux operating system) that is used to connect to the switch over SSH. 40.5 Introduction to HTTPS HTTPS (HyperText Transfer Protocol over Secure Socket Layer, or HTTP over SSL) is a web protocol that encrypts and decrypts web pages. Secure Socket Layer (SSL) is an application-level protocol that enables secure transactions of data by ensuring confidentiality (an unauthorized party cannot read the transferred data), authentication (one party can identify the other party) and data integrity (you know if data has been changed). It relies upon certificates, public keys, and private keys. 314 MS-7206 User's Guide

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Chapter 40 Access Control
MS-7206 User’s Guide
314
1
Host Identification
The SSH client sends a connection request to the SSH server. The server identifies
itself with a host key. The client encrypts a randomly generated session key with
the host key and server key and sends the result back to the server.
The client automatically saves any new server public keys. In subsequent
connections, the server public key is checked against the saved version on the
client computer.
2
Encryption Method
Once the identification is verified, both the client and server must agree on the
type of encryption method to use.
3
Authentication and Data Transmission
After the identification is verified and data encryption activated, a secure tunnel is
established between the client and the server. The client then sends its
authentication information (user name and password) to the server to log in to the
server.
40.4.2
SSH Implementation on the Switch
Your switch supports SSH version 2 using RSA authentication and three encryption
methods (DES, 3DES and Blowfish). The SSH server is implemented on the switch
for remote management and file transfer on port 22. Only one SSH connection is
allowed at a time.
40.4.2.1
Requirements for Using SSH
You must install an SSH client program on a client computer (Windows or Linux
operating system) that is used to connect to the switch over SSH.
40.5
Introduction to HTTPS
HTTPS (HyperText Transfer Protocol over Secure Socket Layer, or HTTP over SSL)
is a web protocol that encrypts and decrypts web pages. Secure Socket Layer
(SSL) is an application-level protocol that enables secure transactions of data by
ensuring confidentiality (an unauthorized party cannot read the transferred data),
authentication (one party can identify the other party) and data integrity (you
know if data has been changed).
It relies upon certificates, public keys, and private keys.