Title: RFC 5280: Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile | RFC Editor
Open Graph Title: RFC 5280: Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile | RFC Editor
Description: This memo profiles the X.509 v3 certificate and X.509 v2 certificate revocation list (CRL) for use in the Internet. An overview of this approach and model is provided as an introduction. The X.509 v3 certificate format is described in detail, with additional information regarding the format and semantics of Internet name forms. Standard certificate extensions are described and two Internet-specific extensions are defined. A set of required certificate extensions is specified. The X.509 v2 CRL format is described in detail along with standard and Internet-specific extensions. An algorithm for X.509 certification path validation is described. An ASN.1 module and examples are provided in the appendices. [STANDARDS-TRACK]
Open Graph Description: This memo profiles the X.509 v3 certificate and X.509 v2 certificate revocation list (CRL) for use in the Internet. An overview of this approach and model is provided as an introduction. The X.509 v3 certificate format is described in detail, with additional information regarding the format and semantics of Internet name forms. Standard certificate extensions are described and two Internet-specific extensions are defined. A set of required certificate extensions is specified. The X.509 v2 CRL format is described in detail along with standard and Internet-specific extensions. An algorithm for X.509 certification path validation is described. An ASN.1 module and examples are provided in the appendices. [STANDARDS-TRACK]
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Opengraph URL: https://www.rfc-editor.org/info/rfc5280/
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Domain: www.rfc-editor.org
| og:image | https://www.rfc-editor.org/api/v1/meta-thumbnail/rfc5280.png |
| og:image:alt | RFC 5280: Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile. This memo profiles the X.509 v3 certificate and X.509 v2 certificate revocation list (CRL) for use in the Internet. An overview of this approach and model is provided as an introduction. The X.509 v3 certificate format is described in detail, with additional information regarding the format and semantics of Internet name forms. Standard certificate extensions are described and two Internet-specific extensions are defined. A set of required certificate extensions is specified. The X.509 v2 CRL format is described in detail along with standard and Internet-specific extensions. An algorithm for X.509 certification path validation is described. An ASN.1 module and examples are provided in the appendices. [STANDARDS-TRACK]. |
| og:image:type | image/png |
| og:image:width | 1200 |
| og:image:height | 630 |
| og:type | article |
| article:modified_time | 2008-05-08 |
| resource-timestamp:info-rfc5280 | 2026-06-30T17:50:31.748+00:00 |
| citation_author | W. Polk |
| citation_doi | 10.17487/RFC5280 |
| citation_publication_date | 2008/05/08 |
| citation_technical_report_number | rfc5280 |
| citation_title | Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile |
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