Data protection api cryptography (1 Ergebnisse)

Taschenbuch. Zustand: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articlesavailable from Wikipedia or other free sources online. DPAPI (DataProtection Application Programming Interface) is a simple cryptographicapplication programming interface available as a built-in component inWindows 2000 and later versions of Microsoft Windows operating systems.In theory the Data Protection API can enable symmetric encryption of anykind of data; in practice, its primary use in the Windows operatingsystem is to perform symmetric encryption of asymmetric private keysusing a user or system secret as a significant contribution of entropy.For nearly all cryptosystems, one of the most difficult challenges is'key management' - in part, how to securely store the decryption key. Ifthe key is stored in plain text, then any user that can access the keycan access the encrypted data. If the key is to be encrypted, anotherkey is needed, and so on ad infinitum. DPAPI allows developers toencrypt keys using a symmetric key derived from the user's logonsecrets, or in the case of system encryption, using the system's domainauthentication secrets.…