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Encryption (Secure Shell Settings)

Use the Encryption section of the Secure Shell Settings dialog box to specify what ciphers the Secure Shell connection should use. Different options are available depending on which Secure Shell protocol is used for the connection.

The options are:

Run in FIPS Mode When Run in FIPS mode is selected, Reflection enforces the United States government Federal Information Processing Standard (FIPS) 140-2 for this connection. Options in the Encryption section that do not meet this standard are not available when Run in FIPS mode is selected.
Cipher List Use this list to specify the ciphers you want to allow for protocol 2 connections to the current host. When more than one cipher is selected, the Secure Shell client attempts to use ciphers in the order you specify, starting from the top. To change the order, select a cipher from the list, then click the up or down arrow. The cipher used for a given session is the first item in this list that is also supported by the server.
HMAC List Specifies the HMAC (hashed message authentication code) methods you want to allow. This hash is used to verify the integrity of all data packets exchanged with the server. When more than one HMAC is selected, the Secure Shell client attempts to negotiate an HMAC with the server in the order you specify, starting from the top. To change the order, select an HMAC from the list, then click the up or down arrow.
Key Exchange Algorithms Specifies which key exchange algorithms the client supports, and the order of preference.

Two additional encryption algorithms (gss-group1-sha1-*) are supported, but do not appear in the list of available key exchange algorithms. These two algorithms are automatically proposed by the client when you enable GSSAPI from the General section of the Secure Shell Dialog Box (under User Authentication).

note

  • The settings you configure in this dialog box are saved to the Secure Shell configuration file. You can also configure Secure Shell settings by editing this file manually in any text editor.
  • Within the configuration file, these settings are saved for the currently specified SSH configuration scheme.