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2016-01-20 2016-01-20
5.8.1 Change: Not allowing SSH-1 by default. + Moving SSH-1-only options to less prominent positions on Advanced Site Settings dialog and removing SSH-2-only designations of session options. + Updating SSH version configuration texts from PuTTY 0.66 documentation (martin) limit acronym recognition (martin)
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WinSCP currently supports the following algorithms: WinSCP currently supports the following algorithms:
-  * //AES// (Rijndael) - 256, 192, or 128-bit SDCTR or CBC (SSH-2 only)  +  * //AES// (Rijndael) - 256, 192, or 128-bit SDCTR or CBC 
-  * //Arcfour// (RC4) - 256 or 128-bit stream cipher (SSH-2 only) +  * //Arcfour// (RC4) - 256 or 128-bit stream cipher 
-  * //Blowfish// - 256-bit SDCTR (SSH-2 only) or 128-bit CBC  +  * //Blowfish// - 256-bit SDCTR or 128-bit CBC  
-  * //Triple-DES// - 168-bit SDCTR (SSH-2 only) or CBC  +  * //Triple-DES// - 168-bit SDCTR or CBC  
-  * //Single-DES// - 56-bit CBC (see below for SSH-2) +  * //Single-%%DES%%// - 56-bit CBC (see below for %%SSH-2%%)
If the algorithm WinSCP finds is below the //warn below here// line, you will see a warning box when you make the connection: If the algorithm WinSCP finds is below the //warn below here// line, you will see a warning box when you make the connection:
-> The first cipher supported by the server is single-DES, which is below the configured warning threshold.+> The first cipher supported by the server is single-%%DES%%, which is below the configured warning threshold.
> >
> Do you want to continue with this connection? > Do you want to continue with this connection?
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In SSH-2, the encryption algorithm is negotiated independently for each direction of the connection, although WinSCP does not support separate configuration of the preference orders. As a result you may get two warnings similar to the one above, possibly with different encryptions. In SSH-2, the encryption algorithm is negotiated independently for each direction of the connection, although WinSCP does not support separate configuration of the preference orders. As a result you may get two warnings similar to the one above, possibly with different encryptions.
-Single-DES is not recommended in the SSH-2 protocol standards, but one or two server implementations do support it. WinSCP can use single-DES to interoperate with these servers if you enable the //Enable legacy use of single-DES in SSH-2// option; by default this is disabled and WinSCP will stick to recommended ciphers. ((&puttydoccite))+Single-DES is not recommended in the %%SSH-2%% protocol standards, but one or two server implementations do support it. WinSCP can use single-%%DES%% to interoperate with these servers if you enable the //Enable legacy use of single-%%DES%% in %%SSH-2%%// option; by default this is disabled and WinSCP will stick to recommended ciphers. ((&puttydoccite))
You can see actually used encryption algorithm on [[ui_fsinfo|Server and Protocol Information Dialog]]. You can see actually used encryption algorithm on [[ui_fsinfo|Server and Protocol Information Dialog]].

Last modified: by martin