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OpenSSL

OpenSSL is a software library for applications that provide secure communications over computer networks against eavesdropping, and identify the party at the other end. It is widely used by Internet servers, including the majority of HTTPS websites.

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Algorithms

41 related topics

Notable vulnerabilities

20 related topics

Licensing

14 related topics

Project history

6 related topics

Key facts & relationships

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Developer
The OpenSSL Project
License
3.0 and later: Apache-2.0 1.x and earlier: OpenSSL
Release
1998; 28 years ago (1998)
Repository
github.com/openssl
Stable
4.0.1 / 9 June 2026; 2 months ago (9 June 2026)
Stable release
Stable4.0.1 / 9 June 2026; 2 months ago (9 June 2026)

Topics to explore

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Overview

Project history

Algorithms

FIPS 140 validation

Licensing

Notable vulnerabilities

Forks

Criticisms

Advanced semantic analysis

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Map overview Semantic statistics

OpenSSL

Nodes124
Edges123
Triples237
Avg. degree1.98
Density0.016129
Components1

How this topic connects Entity context

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OpenSSL

Top relations

related to FIPS 140 validation · 28
OpenSSL → All, An, As, BoringCrypto, CryptoComply, December, Digital Signature Standard, EOL, February, Federal, FIPS, FOM, Google, Historical, Historical List, July, Many, NIST, OpenSSL FIPS Object Module, OpenSSL's FOM
related to Licensing · 25
OpenSSL → Apache License, As, August, BSD License, BSD-licensed Botan, CLA, Contributor License Agreement, Deluge, Due, GNU GPL, GNU Wget, GPL, LGPL-licensed GnuTLS, March, MPL-licensed NSS, OpenSSL License, OpenSSL Project, OpenSSL Toolkit, Other, Sections
related to history · 20
OpenSSL → Apache License, Ben Laurie, December, Eric Andrew Young, Hudson, In, Internet, It, Mark Cox, OpenSSL's, Paul Sutton, Ralf Engelschall, RSA Security, SSLeay, Stephen Henson, The, The OpenSSL, Tim Hudson, Version, Young
related to Consideration for users' requirements · 19
OpenSSL → Akamai, Apache, API, As, BoringSSL, February, Finally, Finally Rich Salz, HTTP, Microsoft, OpenSSL Management Committee, QUIC, QUIC-compatible, QuicTLS, Such, The, This, TLS, While
related to ASN.1 BIO vulnerability · 12
OpenSSL → April, ASN, Basic Input/Output, BIO, CVE, CVE-2012-2110, DER, FILE, SSL/TLS, This, When, While
related to Heartbleed · 12
OpenSSL → April, At, By, CVE-2014-0160, Heartbleed, However, Internet's, KB, Knowledge, The, This, TLS Heartbeat Extension
related to OCSP stapling vulnerability · 12
OpenSSL → Assigned, ClientHello, CVE, DoS, It, Lock-gray-alt-2, Lock-green, Lock-red-alt-2, OCSP, Since, When, Wikisource-logo
related to Predictable private keys (Debian-specific) · 12
OpenSSL → Debian, Debian's, Debian-based, May, On, OpenSSL's, Ready-to-use, September, The, To, Ubuntu, Valgrind
related to SSL, TLS and DTLS plaintext recovery attack · 12
OpenSSL → CBC, CVE, CVE-2013-0169, DTLS, February, In, Kenny Paterson, MAC, Nadhem Alfardan, SSL, The, TLS
related to External links · 10
OpenSSL → Archived, August, DocumentationOpenSSL Programming Guide, GPL Archived July, Graphical, Mark McLoughlin, May, OpenSSLOpenSSL Software FoundationOpenSSL WikiOpenSSL, The OpenSSL License, Wayback Machine

Important terminology Word statistics

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Important terminology

version project license tls library support software fips use vulnerability could also used including fork vulnerable available attack number apache

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
OpenSSLDeveloperThe OpenSSL Project1.00infobox
OpenSSLLicense3.0 and later: Apache-2.0 1.x and earlier: OpenSSL1.00infobox
OpenSSLRelease1998; 28 years ago (1998)1.00infobox
OpenSSLRepositorygithub.com/openssl1.00infobox
OpenSSLStable4.0.1 / 9 June 2026; 2 months ago (9 June 2026)1.00infobox
OpenSSLStable releaseStable4.0.1 / 9 June 2026; 2 months ago (9 June 2026)1.00infobox
OpenSSLTypeCryptography library1.00infobox
OpenSSLWebsitewww.openssl.org1.00infobox
OpenSSLWritten inC, Assembly, Perl1.00infobox
OpenSSLis asoftware library for applications that provide secure communications over computer networks against eavesdropping0.90text
OpenSSLrelated to Agglomerated SSLIn0.60section
OpenSSLrelated to Agglomerated SSLOpenSSL API0.60section

Related concept clusters Concept neighborhoods

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