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What is cryptsvc.dll?


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Windows Process Description:

Microsoft Corporation has designed sophisticated cryptographic services to provide a means of secure communication over a network, especially a public network. The cryptographic services are processed by cryptsvc.dll file, which contains functions that implement various methods of cryptography.

Communication over the Internet can be read or even modified by unauthorized third parties if the user does not adopt the cryptographic services, along with file encryption and encryption on a local disk. Cryptography ensures data integrity and authentication by, among others functions, initializing certificates for an authorized user.

A combination of algorithms and practices known as cryptographic primitives are largely adopted by the cryptographic services to ensure confidentiality, data integrity and authentication. The cryptsvc.dll file to encrypt data using a single-shared secret key implements symmetric cryptography or secret-key encryption. The cryptsvc.dll file to encrypt data over a public network by using a public or private key pair implements the asymmetric cryptography or public-key encryption. The cryptographic signing is used to create digital signature so that a sender of data can be verified. The cryptographic hashes, which are statistically unique, are implemented by cryptsvc.dll file to map data from any length to a fixed-length byte sequence.

In sum, the cryptsvc.dll file processes three management services provided by Microsoft's cryptographic services. First is the Catalog Database Service. This method of cryptography verifies the signatures of Windows files assigned by the authorized user.

Second is the Protected Root Service. In implementing this function, the cryptsvc.dll file assigns a Trusted Root Certification Authority certificates in a computer and adds it as an encrypted file to the system. This same service is used to remove the certificates if the user so wishes.

Third is Key Service, which is called when a computer is enrolled for certificates. This service is constantly in operation as the other management services are dependent on its function. Verifying signatures and assigning or removing certificates will fail if the Key Service is stopped.

Author: Microsoft Corporation

Author URL: http://

Part Of: Microsoft Windows operating system

Memory Usage: Low

Associated Applications: Microsoft Cryptographic Services

Background DLL: Yes

Uses Network: Yes

Hardware Related: No

Common Path: C:\ Windows\ system32\ cryptsvc.dll

DLL Version: 5.1.2600.2180

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