Thanks, Tim. Maybe I should look at the code sometime if it's not too difficult for me to understand. :)
On Thu, Sep 18, 2008 at 13:01, Tim Hudson <[EMAIL PROTECTED]> wrote: > Clark J. Wang wrote: > >> Hi list: >> >> I'm new to OpenSSL and have a problem when trying BIGNUM usage. The >> function ERR_get_error() returned 0 when BN_hex2bn() failed: >> > > The error stack is used for errors which are useful to return to the caller > and isn't used much in 'leaf nodes' (i.e. things which are low level > routines which don't use other code to perform their actions). > > As such the BN library has almost no use of the error stack in it at all by > design. > > One of the (many) advantages of open source is that you can look at the > code and compile it up with debug and step through the routines to see what > is happening. > > When you do that you should see that you simply need to remove the 'x' in > 'xFFFF' and things work nicely as 'x' is not a valid character for a > hexadecimal string. > > Tim. > >
