Certificate signing request
A certificate signing request is a structured, signed request containing a subject's identity and public key, submitted to a certificate authority for certificate issuance.
Software Security for Developers
A certificate signing request is a signed request containing a subject's identifying information and public key that is submitted to a certificate authority for certificate issuance.
- How it is used
- Requests a CA-issued X.509 certificate for a public key and identified subject.
- How deep it goes
- Explains CSR creation, fields, inspection, submission, and validation, but defers broader certificate internals.
- Examples
- Uses OpenSSL commands, distinguished-name prompts, inspected request output, and local-CA issuance for localhost.
- What you can do after
- Build it from scratch with OpenSSL, inspect its contents, submit it for validation, and use it with a local CA.
Read how Software Security for Developers explains certificate signing request →
Acing the Certified Kubernetes Administrator Exam, Second Edition
A Kubernetes CertificateSigningRequest is an API resource containing a requested certificate and the information needed to approve and issue it.
- How it is used
- Creates client certificates that authenticate Kubernetes users before RBAC determines their permitted operations.
- How deep it goes
- Explains key and CSR generation, manifest fields, approval, issuance, extraction, kubeconfig use, and authorization verification.
- Examples
- Uses OpenSSL commands, a Carol CSR manifest, kubectl approval, certificate extraction, kubeconfig contexts, and pod permission checks.
- What you can do after
- Build it from scratch with OpenSSL and kubectl, then verify certificate issuance, kubeconfig authentication, and RBAC behavior.
Related concepts
- certification authorityused by · A certification authority is a trusted entity that verifies identities and issues digitally signed certificates binding public keys to identities or domains.
- certificateproduces · A digital certificate is a digitally signed credential that binds an identity to a public key and supports authentication or secure communication.
- public keyhas part · A public key is the openly distributable component of an asymmetric cryptographic key pair, used for encryption, authentication, or signature verification.
- configurationconfigured by · A specification of settings, parameters, or component relationships that determines how a system, application, model, or process is structured or operates.
- private keyproduced by · A private key is the secret component of an asymmetric cryptographic key pair used by its holder for operations such as authentication, decryption, or digital signing.
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