PKCS

Definition of PKCS in The Network Encyclopedia.

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What is PKCS (in computer networking)?

Stands for Public Key Cryptography Standards, a set of standards developed by an industry consortium headed by RSA Laboratories and including Microsoft that specifies how a public key cryptography system should be implemented and operated. The following table shows the standards that are important to public key cryptography.


Public Key Cryptography Standards

Standard Description
PKCS #1
Specifies how to encrypt and sign data using RSA encryption
PKCS #2
Now included in PKCS #1
PKCS #3
Describes the Diffie-Hellman key exchange protocol
PKCS #4
Now included in PKCS #1
PKCS #5
Specifies how to encrypt data using a secret key derived from a user’s password
PKCS #6
Specifies the syntax standard for extended certificates
PKCS #7
Specifies the general syntax of messages that include cryptographic enhancements such as encryption and digital signatures
PKCS #8
Specifies the format for private key information
PKCS #9
Specifies various attribute types that are used in other PKCS standards
PKCS #10
Specifies the syntax for requesting digital certificates
PKCS #11
Specification for the Cryptoki application programming interface (API), which is used in smart cards
PKCS #12
Specifies a portable format for storing and transporting certificates, private keys, and so forth
PKCS #13
Specifies standards for elliptic curve cryptography (under development at the time of this writing)
PKCS #14
Specifies standards for generating pseudo-random numbers (under development at the time of this writing)
PKCS #15
Specifies the standard format for cryptographic token information (under development at the time of this writing)

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