OpenSSL
OpenSSL is an open-source software library and toolkit implementing cryptographic algorithms, secure-communication protocols, and operations involving keys and certificates.
Secure APIs
OpenSSL is an open-source toolkit implementing cryptographic protocols, algorithms, certificates, and key-management operations.
- How it is used
- Generates RSA key pairs for signing and validating JWTs with asymmetric algorithms.
- How deep it goes
- Explains installation context, genpkey parameters, and key use, but does not develop OpenSSL's broader cryptographic capabilities.
- Examples
- Uses a 3072-bit RSA key-pair command and generated PEM files for PS256 token signing.
- What you can do after
- Operate OpenSSL's genpkey command to create RSA signing and verification keys for JWT experiments.
Hacking Cryptography
OpenSSL is an open-source software toolkit that provides implementations of cryptographic primitives, protocols, and related security functions.
- How it is used
- Recommends OpenSSL for production security designs instead of custom cryptographic implementations.
- How deep it goes
- Explains its engineering role and limitations, but does not detail APIs, configuration, algorithms, or vulnerability remediation.
- Examples
- Uses OpenSSL's adoption by large enterprises and governments as evidence for relying on widely reviewed implementations.
- What you can do after
- Evaluate whether established cryptographic software and standardized TLS are preferable to custom security code.
Building Web APIs with ASP.NET Core
OpenSSL is an open-source toolkit and command-line tool for cryptography, certificates, and related security files.
- How it is used
- Converts PEM and KEY certificates into PFX files for import into IIS.
- How deep it goes
- Provides installation, command execution, password entry, and file-cleanup steps without explaining cryptographic internals.
- Examples
- Uses a Windows OpenSSL command to generate mybglist_origin.pfx from mybglist_origin.pem and mybglist_origin.key.
- What you can do after
- Operate/configure OpenSSL to create an IIS-importable PFX certificate file.
Read how Building Web APIs with ASP.NET Core explains OpenSSL →
Related concepts
- self-signed certificateproduces · A self-signed certificate is a digital certificate whose signature is created by the same entity and key identified by the certificate rather than by a certificate authority.
- TLSimplements · Transport Layer Security (TLS) is a cryptographic protocol that protects network communications through confidentiality, integrity, and authentication of communicating endpoints.
- certificateuses · A digital certificate is a digitally signed credential that binds an identity to a public key and supports authentication or secure communication.
- public-private key pairproduces · A public-private key pair is a mathematically related public key and private key used together for asymmetric cryptographic operations.
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