Public bug reported:
Since version 2013.56, dropbear has supported the hmac-sha2-256 and
hmac-sha2-512 MAC algorithms, but they are disabled by default.
According to the dropbear changelog, enabling them is a matter of
uncommenting the following two lines in options.h:
/*#define DROPBEAR_SHA2_256_HMAC*/
/*#define DROPBEAR_SHA2_512_HMAC*/
Due to recent NSA revelations, some people are recommending users
disable certain algorithms. If the recommendations at
<https://stribika.github.io/2015/01/04/secure-secure-shell.html> are
followed, there are no MAC algorithms left that dropbear supports unless
hmac-sha2-256 and hmac-sha2-512 are enabled.
** Affects: dropbear (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1409798
Title:
enable hmac-sha2-256, hmac-sha2-512 MAC algorithms
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