Signing Data - Win32 Programmer's Reference

Custom Search

Signing Data

In order to sign data, a hash object must first be created using the CryptCreateHash function. This object will accumulate the data to be signed. Next, the data is added to the hash object with the CryptHashData function.

After the last block of data is added to the hash, the CryptSignHash function is used to sign the hash. A description of the data can also be added to the hash object at this point. Once the digital signature data has been obtained, the hash object should be destroyed with the CryptDestroyHash function.

Hashes can be signed with either the signature private key or the key exchange private key. The signature key should be used when the user who owns the signature key is signing some of his or her data. The key exchange key should be used when signing data that does not directly belong to the user. The classic example of this is when the exchange key is used to sign session keys during a key exchange protocol.

Last news from Greatis Software

    Nostalgia .Net     .Net is powerful, but not all-powerful, so sometimes we need to use Win32 API for our .Net applications. It's simple enough with Platform Invoke if you have Win32 skill, but we do not always have time to dig the ancient documentation, declare the special types that are compatible with Win32, find the values of the Win32's constants and so on. Nostalgia .Net offers several simple-to-use classes, and components that will allow you to forget about the headache of Win32 and just use the power of Win32 in your application the same way as you use the native. Net classes. More »

Recommended software for developers

    Ultimate Pack     Component pack for Delphi and C++ Builder that contains runtime form designer, runtime object inspector, print suite and much more for the very special price. More »

    Form Designer .Net     Unique runtime form design solution that allows to edit any form in .Net WinForms application at runtime with full source codes for only 300 euro! More »

    Print Suite .Net     Print Suite .Net is a set of components for easy printing texts, images and grids from your WinForms applications. Full C# source codes are available More »

    Gradient Controls .Net     Gradient Controls .Net offers controls with gradient background feature. Labels, panels and so on... Full C# source codes are available More »

    Greatis iGrid     iGrid plots drawing grid right over your desktop, so you can use it everywhere, with any drawing application without any special plugins for different graphic editors. More »

All the contacts and projects

Dmitry Vasiliev (just.dmitry)

More Online Helps

Win32 Programmer's Reference
Win32 Multimedia Programmer's Reference
OLE Programmer's Reference
Microsoft Windows Pen API Programmer's Reference
Microsoft Windows Sockets 2 Reference
Microsoft Windows Telephony API (TAPI) Programmer's Reference
Unix Manual Pages

greatis just4fun network