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Improve comment about sha1-96

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This commit is contained in:
Matt Johnston 2012-04-12 21:57:30 +08:00
parent 4d009daaa0
commit 3e2b6a1821
1 changed files with 4 additions and 3 deletions
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7
options.h
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@ -99,16 +99,17 @@ much traffic. */
/* Message Integrity - at least one required.
* Protocol RFC requires sha1 and recommends sha1-96.
* sha1-96 may be of use for slow links, as it has a smaller overhead.
* sha1-96 is of use for slow links as it has a smaller overhead.
*
* Note: there's no point disabling sha1 to save space, since it's used
* for the random number generator and public-key cryptography anyway.
* There's no reason to disable sha1 or sha1-96 to save space since it's
* used for the random number generator and public-key cryptography anyway.
* Disabling it here will just stop it from being used as the integrity portion
* of the ssh protocol.
*
* These hashes are also used for public key fingerprints in logs.
* If you disable MD5, Dropbear will fall back to SHA1 fingerprints,
* which are not the standard form. */
#define DROPBEAR_SHA1_HMAC
#define DROPBEAR_SHA1_96_HMAC
#define DROPBEAR_MD5_HMAC