[Bug 1853] sshd doesn't seem to be able to auth a user using an rsa key of 20000 bit

[bugzilla-daemon at bugzilla.mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=1853

Darren Tucker <dtucker at zip.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dtucker at zip.com.au
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID

--- Comment #3 from Darren Tucker <dtucker at zip.com.au> 2011-02-06 13:50:53 EST ---
The limitation is in OpenSSL's rsa.h (probably
/usr/include/openssl/rsa.h or similar):

$ grep "define.*RSA_MAX" /usr/include/openssl/rsa.h 
# define OPENSSL_RSA_MAX_MODULUS_BITS    16384
# define OPENSSL_RSA_MAX_PUBEXP_BITS    64 /* exponent limit enforced
for "large" modulus only */

If you want bigger keys, you'll need to change that and recompile
OpenSSL then rebuild OpenSSH against it.

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