mike.hoy at canberra.com
Thu Nov 11 22:15:41 CET 2010
We have been having decryption problems depending upon file size. We
are talking to a specialized camera with TLS 1.0, 1.1 and TLS 1.2.
Under each we had file transfers that failed decryption. All with
varying file sizes.
After trouble shooting we found that in gnutls_cipher.c in the function
_gnutls_ciphertext2compressed the local variable pad is defined as
uint8_t. While this seemed fine we found it rolled over to an illegal
value of 0 for the pad. Our fix was to change pad to an int and get a
pad value of 256, instead of zero.
While this works for now I am concerned we may not really be supporting
a true general case with this fix.
Can you tell us if this is what we should do or is there some other
problem we aren't seeing?
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