For technical reasons, titles such as "PKCS #1" redirect here. For links to individual articles, see the table below.
In cryptography, PKCS (Public Key Cryptography Standards) are a group of public key cryptography standards devised and published by RSA Security LLC, starting in the early 1990s. The company published the standards to promote the use of the cryptography techniques to which they had patents, such as the RSA algorithm, the Schnorr signature algorithm and several others. Though not industry standards (because the company retained control over them), some of the standards have begun to move into the "standards track" processes of relevant standards organizations in recent years[when?], such as the IETF and the PKIX working group.
See RFC 8017. Defines the mathematical properties and format of RSA public and private keys (ASN.1-encoded in clear-text), and the basic algorithms and encoding/padding schemes for performing RSA encryption, decryption, and producing and verifying signatures.
PKCS #2
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Withdrawn
No longer active as of 2010[update]. Covered RSA encryption of message digests; subsequently merged into PKCS #1.
A cryptographic protocol that allows two parties that have no prior knowledge of each other to jointly establish a shared secret key over an insecure communications channel.
PKCS #4
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Withdrawn
No longer active as of 2010[update]. Covered RSA key syntax; subsequently merged into PKCS #1.
See RFC 2315. Used to sign and/or encrypt messages under a PKI. Used also for certificate dissemination (for instance as a response to a PKCS #10 message). Formed the basis for S/MIME, which is as of 2010[update] based on RFC 5652, an updated Cryptographic Message Syntax Standard (CMS). Often used for single sign-on.
See RFC 2985. Defines selected attribute types for use in PKCS #6 extended certificates, PKCS #7 digitally signed messages, PKCS #8 private-key information, and PKCS #10 certificate-signing requests.
See RFC 7292. Defines a file format commonly used to store private keys with accompanying public key certificates, protected with a password-based symmetric key. PFX is a predecessor to PKCS #12.
This container format can contain multiple embedded objects, such as multiple certificates. Usually protected/encrypted with a password. Usable as a format for the Java KeyStore and to establish client authentication certificates in Mozilla Firefox. Usable by Apache Tomcat.
Cryptographic Token Information Format Standard[13]
Defines a standard allowing users of cryptographic tokens to identify themselves to applications, independent of the application's Cryptoki implementation (PKCS #11) or other API. RSA has relinquished IC-card-related parts of this standard to ISO/IEC 7816-15.[14]
^ "PKCS #15: Cryptographic Token Information Format Standard". RSA Laboratories.
^ RSA Laboratories: "PKCS #15: Cryptographic Token Information Format Standard".
General
Jean-Sébastien Coron, Marc Joye, David Naccache, and Pascal Paillier (2000). "New Attacks on PKCS #1 v1.5 Encryption" (PDF). EUROCRYPT. pp. 369–381.{{cite web}}: CS1 maint: multiple names: authors list (link)
External linksedit
About PKCS (appendix G from RFC 3447)
OASIS PKCS 11 TC (technical committee home page)
December 15, 2023
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For technical reasons titles such as PKCS 1 redirect here For links to individual articles see the table below In cryptography PKCS Public Key Cryptography Standards are a group of public key cryptography standards devised and published by RSA Security LLC starting in the early 1990s The company published the standards to promote the use of the cryptography techniques to which they had patents such as the RSA algorithm the Schnorr signature algorithm and several others Though not industry standards because the company retained control over them some of the standards have begun to move into the standards track processes of relevant standards organizations in recent years when such as the IETF and the PKIX working group PKCS Standards Summary Version Name CommentsPKCS 1 2 2 RSA Cryptography Standard 1 See RFC 8017 Defines the mathematical properties and format of RSA public and private keys ASN 1 encoded in clear text and the basic algorithms and encoding padding schemes for performing RSA encryption decryption and producing and verifying signatures PKCS 2 Withdrawn No longer active as of 2010 update Covered RSA encryption of message digests subsequently merged into PKCS 1 PKCS 3 1 4 Diffie Hellman Key Agreement Standard 2 A cryptographic protocol that allows two parties that have no prior knowledge of each other to jointly establish a shared secret key over an insecure communications channel PKCS 4 Withdrawn No longer active as of 2010 update Covered RSA key syntax subsequently merged into PKCS 1 PKCS 5 2 1 Password based Encryption Standard 3 See RFC 8018 and PBKDF2 PKCS 6 1 5 Extended Certificate Syntax Standard 4 Defines extensions to the old v1 X 509 certificate specification Obsoleted by v3 of the same PKCS 7 1 5 Cryptographic Message Syntax Standard 5 See RFC 2315 Used to sign and or encrypt messages under a PKI Used also for certificate dissemination for instance as a response to a PKCS 10 message Formed the basis for S MIME which is as of 2010 update based on RFC 5652 an updated Cryptographic Message Syntax Standard CMS Often used for single sign on PKCS 8 1 2 Private Key Information Syntax Standard 6 See RFC 5958 Used to carry private certificate keypairs encrypted or unencrypted PKCS 9 2 0 Selected Attribute Types 7 See RFC 2985 Defines selected attribute types for use in PKCS 6 extended certificates PKCS 7 digitally signed messages PKCS 8 private key information and PKCS 10 certificate signing requests PKCS 10 1 7 Certification Request Standard 8 See RFC 2986 Format of messages sent to a certification authority to request certification of a public key See certificate signing request PKCS 11 3 0 Cryptographic Token Interface 9 Also known as Cryptoki An API defining a generic interface to cryptographic tokens see also hardware security module Often used in single sign on public key cryptography and disk encryption 10 systems RSA Security has turned over further development of the PKCS 11 standard to the OASIS PKCS 11 Technical Committee PKCS 12 1 1 Personal Information Exchange Syntax Standard 11 See RFC 7292 Defines a file format commonly used to store private keys with accompanying public key certificates protected with a password based symmetric key PFX is a predecessor to PKCS 12 This container format can contain multiple embedded objects such as multiple certificates Usually protected encrypted with a password Usable as a format for the Java KeyStore and to establish client authentication certificates in Mozilla Firefox Usable by Apache Tomcat PKCS 13 Elliptic curve cryptography Standard Apparently abandoned only reference is a proposal from 1998 12 PKCS 14 Pseudo random Number Generation Apparently abandoned no documents exist PKCS 15 1 1 Cryptographic Token Information Format Standard 13 Defines a standard allowing users of cryptographic tokens to identify themselves to applications independent of the application s Cryptoki implementation PKCS 11 or other API RSA has relinquished IC card related parts of this standard to ISO IEC 7816 15 14 See also editCryptographic Message SyntaxReferences edit PKCS 1 RSA Cryptography Standard RSA Laboratories PKCS 3 Diffie Hellman Key Agreement Standard RSA Laboratories PKCS 5 Password Based Cryptography Standard RSA Laboratories PKCS 6 Extended Certificate Syntax Standard RSA Laboratories PKCS 7 Cryptographic Message Syntax Standard RSA Laboratories PKCS 8 Private Key Information Syntax Standard RSA Laboratories PKCS 9 Selected Attribute Types RSA Laboratories PKCS 10 Certification Request Syntax Standard RSA Laboratories PKCS 11 Cryptographic Token Interface Standard RSA Laboratories Security Token Smartcard Support in FreeOTFE PKCS 12 Personal Information Exchange Syntax Standard RSA Laboratories Archived from the original on April 1 2014 PKCS 13 Elliptic Curve Cryptography Standard RSA Laboratories PKCS 15 Cryptographic Token Information Format Standard RSA Laboratories RSA Laboratories PKCS 15 Cryptographic Token Information Format Standard GeneralJean Sebastien Coron Marc Joye David Naccache and Pascal Paillier 2000 New Attacks on PKCS 1 v1 5 Encryption PDF EUROCRYPT pp 369 381 a href Template Cite web html title Template Cite web cite web a CS1 maint multiple names authors list link External links editAbout PKCS appendix G from RFC 3447 OASIS PKCS 11 TC technical committee home page Retrieved from https en wikipedia org w index php title PKCS amp oldid 1182532099, wikipedia, wiki, book, books, library,
