OpenSSL

E224032

cryptographic library free and open-source software software toolkit

OpenSSL is a widely used open-source cryptographic library and toolkit that provides SSL/TLS protocols and various encryption, hashing, and security functions for secure communication over computer networks.

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All labels observed (5)

Label	Occurrences
OpenSSL canonical	8
OpenSSL 1.0.1g	1
OpenSSL Project	1
libcrypto	1
libssl	1

How this entity was disambiguated

This entity first appeared as the object of triple T2002250 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: OpenSSL
Context triple: [Poly1305, usedBy, OpenSSL]

A. PKCS #1
PKCS #1 is a cryptographic standard that defines the mathematical properties, formats, and padding schemes for implementing RSA encryption and digital signatures.
B. RFC 5246
RFC 5246 is the Internet Engineering Task Force (IETF) standard that specifies Transport Layer Security (TLS) version 1.2, a widely used protocol for securing communications over computer networks.
C. SSL 3.0
SSL 3.0 is an obsolete cryptographic protocol that once secured internet communications and served as the foundation for the early versions of TLS.
D. RSA Security
RSA Security is a pioneering American cybersecurity company best known for its contributions to public-key cryptography and secure data encryption technologies.
E. SSL
SSL (Secure Sockets Layer) is a cryptographic protocol designed to provide secure, encrypted communication over a computer network, commonly used to protect data transmitted between clients and servers.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: OpenSSL
Target entity description: OpenSSL is a widely used open-source cryptographic library and toolkit that provides SSL/TLS protocols and various encryption, hashing, and security functions for secure communication over computer networks.

A. PKCS #1
PKCS #1 is a cryptographic standard that defines the mathematical properties, formats, and padding schemes for implementing RSA encryption and digital signatures.
B. RFC 5246
RFC 5246 is the Internet Engineering Task Force (IETF) standard that specifies Transport Layer Security (TLS) version 1.2, a widely used protocol for securing communications over computer networks.
C. SSL 3.0
SSL 3.0 is an obsolete cryptographic protocol that once secured internet communications and served as the foundation for the early versions of TLS.
D. RSA Security
RSA Security is a pioneering American cybersecurity company best known for its contributions to public-key cryptography and secure data encryption technologies.
E. SSL
SSL (Secure Sockets Layer) is a cryptographic protocol designed to provide secure, encrypted communication over a computer network, commonly used to protect data transmitted between clients and servers.
F. None of above. chosen

Statements (53)

Predicate	Object
instanceOf	cryptographic library ⓘ free and open-source software ⓘ software toolkit ⓘ
developer	OpenSSL self-linksurface differs ⓘ surface form: OpenSSL Project
implementsProtocol	SSL ⓘ TLS ⓘ
implementsStandard	DTLS ⓘ OCSP ⓘ PKCS #12 ⓘ surface form: PKCS#12 PKCS #7 ⓘ surface form: PKCS#7 S/MIME ⓘ X.509 certificates ⓘ surface form: X.509
initialReleaseYear	1998 ⓘ
license	Apache License 2.0 ⓘ OpenSSL License (historical) ⓘ
notableVulnerability	Heartbleed (CVE-2014-0160) ⓘ
operatingSystem	cross-platform ⓘ
origin	fork of SSLeay ⓘ
programmingLanguage	C ⓘ
provides	C programming API ⓘ SSL/TLS protocol implementation ⓘ command-line tools ⓘ cryptographic primitives ⓘ
repository	https://github.com/openssl/openssl ⓘ
softwareType	cryptography software ⓘ security software ⓘ
supportsAlgorithm	3DES ⓘ Advanced Encryption Standard ⓘ surface form: AES ChaCha20 ⓘ DSA ⓘ Diffie–Hellman key exchange ⓘ Elliptic Curve Digital Signature Algorithm ⓘ surface form: ECDSA Diffie–Hellman key exchange ⓘ surface form: Elliptic-curve Diffie–Hellman HMAC ⓘ MD5 ⓘ RSA ⓘ SHA-1 ⓘ SHA-2 ⓘ
supportsFeature	certificate verification ⓘ cryptographic key management ⓘ public key infrastructure ⓘ random number generation ⓘ
useCase	HTTPS support in web servers ⓘ certificate generation and management ⓘ data encryption and decryption ⓘ digital signatures ⓘ secure network communication ⓘ
usedBy	Apache HTTP Server (via mod_spdy and later modules) ⓘ surface form: Apache HTTP Server nginx ⓘ surface form: Nginx OpenSSH ⓘ surface form: OpenSSH (optionally, for crypto primitives) Postfix ⓘ
website	https://www.openssl.org/ ⓘ
writtenFor	POSIX-compatible systems ⓘ

How these facts were elicited

Referenced by (12)

Full triples — surface form annotated when it differs from this entity's canonical label.

Poly1305 → usedBy → OpenSSL ⓘ

NetBSD → includes → OpenSSL ⓘ

Intel AES-NI → compatibleWith → OpenSSL ⓘ

OpenSSL → developer → OpenSSL self-linksurface differs ⓘ

this entity surface form: OpenSSL Project

BoringSSL → basedOn → OpenSSL ⓘ

BoringSSL → replacesInGoogle → OpenSSL ⓘ

OpenVPN → uses → OpenSSL ⓘ

AEAD_CHACHA20_POLY1305 → usedIn → OpenSSL ⓘ

LibreSSL → forkedFrom → OpenSSL ⓘ

LibreSSL → implementsLibrary → OpenSSL ⓘ

this entity surface form: libcrypto

LibreSSL → implementsLibrary → OpenSSL ⓘ

this entity surface form: libssl

LibreSSL → basedOnVersionOfOpenSSL → OpenSSL ⓘ

this entity surface form: OpenSSL 1.0.1g

All labels observed (5)

How this entity was disambiguated Show

Statements (53)

How these facts were elicited Show

Referenced by (12)

How this entity was disambiguated

How these facts were elicited