We are trying to sign documents using RSA-SHA1 hash. We have tried using the Crypt32 lib and we are getting signature (DS) length of 1024 bits (172 bytes after BASE-64) which is proper. When we try to do the same with CAPICOM, the length comes to be 2292 bytes (BASE-64). How can we have DS length of 172 while using CAPICOM? ...
I am reading this: http://www.onsemi.com/pub_link/Collateral/AND8001-D.PDF On page three, the logic equations is given for the divide-by 9 DFF circuit. How do I obtain the equations through k-maps? I know to use k-maps, but I dont know what and how they are filling the k-maps with to obtain: Ad = A*B* Bd = A*B + AB* Cd = ABC* + CB*...
I have integrated Google Checkout to my payment system with the use of php code provided on the Google Official site. Now I need to add Digital Content to the Cart. I have checked the Cart and couldn't find any direct function or example for achieving this. Please suggest the method to add Digital Content to Google Checkout ...
I'm coding software that requires administrative access. When a UAC dialog pops up, it shows a different popup for digitally signed software than non-signed software. I believe digitally signing my software would enable users to trust my software easier. Does it cost thousands of dollars to digitally sign software, or is it free? Is ther...
I am using PHP and MySQL and I want to sell my Digital EBooks on line. I want to give a Download Link to my clients who buys my EBook but I want to secure my digital download links to work for only 3 times and the Download Link should be deleted automatically after 24 hours or after 3 tries to downloads. How can I fulfill this requirem...
Hi all, I wish to know whether it is possible to sent data across PSTN network. While the call is in progress. I want to sent some data through the telephone line (As DTMF tones can be sent). The data that I want to sent is digital which is encrypted and modulated on an analog carrier (So that it can be send over an analog wire). I have...
Hi! Whats a good digital signal processing algorithm that is good on guitar chords? Since Fast Fourier Transform I think only is accurate on single notes played on the guitar but not notes that are played simultaenously (i.e. chords). Thanks! ...