[xmlsec] Problem with some cert which has a negative serial number

[Chandler Peng]

Dear Aleksey ,
 
That bug  you refer to resolved a  problem how to transfer a positive 
decimal string to a positive integer . 
For example , there is a serial number "00 B2 2F 00 00 /00 02 20 73 3B 
25 34 C4 42 6F"/ in the certificate , the serial number is a positive 
integer for the first byte is 0x00(the first bit is 0) . The libxmlsec 
will transfer the SN to "/3613992633088206991095317234205295" /in 
decimal format and transfer back to /"B2 2F 00 00 00 02 20 73 3B 25 34 
C4 42 6F" /in der format . That is a bug for the integer "00 B2 2F 00 00 
/00 02 20 73 3B 25 34 C4 42 6F" is not equal to /the integer  "B2 2F 00 
00 /00 02 20 73 3B 25 34 C4 42 6F". /That bug has been fixed in CVS./

/This bug we reported is different with that bug.
For example , if there is a serial number "B2 2F 00 00 /00 02 20 73 3B 
25 34 C4 42 6F"/ in the certificate , the serial number is a negative 
integer for the first byte is 0xB2(the first bit is 1) . The libxmlsec 
will transfer the SN to "/3613992633088206991095317234205295" /in 
decimal format and transfer back to /"00 B2 2F 00 00 00 02 20 73 3B 25 
34 C4 42 6F" /in der format . This is a bug for "B2 2F 00 00 /00 02 20 
73 3B 25 34 C4 42 6F" /is a  negative integer and 
"/3613992633088206991095317234205295"/ is a positive decimal format 
string. They are not equal.

It seem that there should be a flag in decimal format to distinguish 
whether the decimal string is positive or not , does'nt it?

--Chandler
 
Aleksey Sanin wrote:

> I guess you are using xmlsec-mscrypto library and if this is
> the case then I believe that this bug was already fixed in CVS:
>
> http://www.aleksey.com/pipermail/xmlsec/2005/002487.html
>
> It would be great if you can try the CVS version and report if your
> problem still exists.
>
> Thanks,
> Aleksey
> _______________________________________________
> xmlsec mailing list
> xmlsec at aleksey.com
> http://www.aleksey.com/mailman/listinfo/xmlsec


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