PKCS 11

In cryptography, PKCS #11 is one of the Public-Key Cryptography Standards,[1] and also refers to the programming interface to create and manipulate cryptographic tokens.

Detail

The PKCS #11 standard defines a platform-independent API to cryptographic tokens, such as hardware security modules (HSM) and smart cards, and names the API itself "Cryptoki" (from "cryptographic token interface" and pronounced as "crypto-key" - but "PKCS #11" is often used to refer to the API as well as the standard that defines it).

The API defines most commonly used cryptographic object types (RSA keys, X.509 Certificates, DES/Triple DES keys, etc.) and all the functions needed to use, create/generate, modify and delete those objects.

Usage

Most commercial certificate authority software uses PKCS #11 to access the CA signing key or to enroll user certificates. Cross-platform software that needs to use smart cards uses PKCS #11, such as Mozilla Firefox and OpenSSL (using an extension). It is also used to access smart cards and HSMs. Software written for Microsoft Windows may use the platform specific MS-CAPI API instead. Both Oracle Solaris and Red Hat Enterprise Linux contain implementations for use by applications, as well.

Relationship to KMIP

The Key Management Interoperability Protocol (KMIP) defines a wire protocol that has similar functionality to the PKCS#11 API. The two standards were originally developed independently but are now both governed by an OASIS technical committee. It is the stated objective of both the PKCS#11 and KMIP committees to align the standards where practicable. For example, the PKCS#11 Sensitive and Extractable attributes are being added to KMIP version 1.4. There is considerable overlap between members of the two technical committees.

History

The PKCS#11 standard originated from RSA Security along with its other PKCS standards in 1994. In 2013, RSA contributed the latest draft revision of the standard (PKCS#11 2.30) to OASIS to continue the work on the standard within the newly created OASIS PKCS11 Technical Committee.[2] The following list contains significant revision information:

  • 01/1994: project launched
  • 04/1995: v1.0 published
  • 12/1997: v2.01 published
  • 12/1999: v2.10 published
  • 01/2001: v2.11 published
  • 06/2004: v2.20 published[1]
  • 12/2005: amendments 1 & 2 (one-time password tokens, CT-KIP [3])
  • 01/2007: amendment 3 (additional mechanisms)
  • 09/2009: v2.30 draft published for review, but final version never published
  • 12/2012: RSA announce that PKCS #11 management is being transitioned to OASIS [4]
  • 03/2013: OASIS PKCS #11 Technical Committee Inaugural meetings, works starts on v2.40 [5]
  • 04/2015: OASIS PKCS #11 v2.40 specifications become approved OASIS standards [6]
  • 05/2016: OASIS PKCS #11 v2.40 Errata 01 specifications become approved OASIS errata [7]
  • 07/2020: OASIS PKCS #11 v3.0 specifications become approved OASIS standards [8]
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See also

References
  1. Susan Gleeson; Chris Zimman, eds. (2015-04-14). "PKCS #11 Cryptographic Token Interface Base Specification Version 2.40". OASIS. Retrieved 2020-01-16.
  2. "OASIS Enhances Popular Public-Key Cryptography Standard, PKCS #11, for Mobile and Cloud". OASIS. Retrieved 2016-08-24.
  3. "CT-KIP: Cryptographic Token Key Initialization Protocol". RSA Security. Archived from the original on 2017-04-17.
  4. Griffin, Bob (2012-12-26). "Re-invigorating the PKCS #11 Standard". Archived from the original on 2013-05-25.
  5. "OASIS PKCS 11 TC Public Documents". OASIS. Retrieved 2020-01-16.
  6. "#PKCS #11 Cryptographic Token Interface Base Specification, Interface Profiles, Current Mechanisms Specification, and Historical Mechanisms Specification Versions 2.40 become OASIS Standards". OASIS. Retrieved 2016-08-24.
  7. "#PKCS 11 V2.40 Approved Erratas published by PKCS 11 TC". OASIS. Retrieved 2016-08-24.
  8. "#PKCS #11 Cryptographic Token Interface Base Specification, Interface Profiles, Current Mechanisms Specification, and Historical Mechanisms Specification Versions 3.0 become OASIS Standards". OASIS. Retrieved 2020-07-23.
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