Security
- Log Redactor Guide
A debugging log can contain the useful error and a credential on the same line. The Log Redactor produces a separate preview so you can remove common sensitive patterns without editing the original text in place.
- TLS Certificate Decoder Guide
A certificate contains names, dates, an issuer, and a public key. The TLS Certificate Decoder reads those fields from PEM text; it does not establish whether a browser would accept the certificate.
- Email Debugging
Email delivery has several steps: your application creates a message, a server accepts it, other servers relay it, and the recipient’s mailbox decides what to do with it. “Sent” at the first step does not mean …
- Security and Cryptography Basics for Developers
Encoding, hashing, and encryption solve different problems. Base64 changes how bytes are written and is easy to reverse. A hash produces a fixed-size digest. Encryption protects content only when the key and the way you …
- Understanding and Debugging JWTs
A JWT is a string with three dot-separated parts: header, payload, and signature. You can read the first two parts without a secret. Reading them does not prove the token was issued by someone you trust.