Encryption
Learn how Public Key Infrastructure (PKI) secures the web with certificates, CAs, and trust chains. Discover how PKI protects every HTTPS connection you make.
Encryption
Learn how Certificate Revocation Lists (CRL) and OCSP let browsers check if a TLS certificate is still valid — and why OCSP stapling is the modern standard.
Encryption
TLS 1.3 cuts handshake latency in half and removes every cipher suite behind the worst HTTPS attacks. Learn exactly what changed and why upgrading matters.
Encryption
Learn what a cipher suite is, how to read its naming convention, and how the TLS protocol uses them to negotiate secure, encrypted HTTPS website connections.
Encryption
RSA and ECC both power public key cryptography, but TLS 1.3 has already chosen. Learn the key-size tradeoffs, performance differences, and what to deploy.
Encryption
Learn how ephemeral keys power perfect forward secrecy in TLS, why they differ from long-term keys, and how ECDHE protects past sessions from future compromise.
Encryption
Understand the critical differences between encryption at rest and in transit. Learn how these two methods work together to secure your data from end to end.
Encryption
Understand Perfect Forward Secrecy (PFS), how ephemeral keys protect past communications from future decryption, and why RSA key exchange is obsolete.
Encryption
Learn how the TLS handshake works, how symmetric and asymmetric keys protect every HTTPS connection, and why TLS 1.3 made it faster and far more secure.
Encryption
Understand how key derivation functions like HKDF and PBKDF2 transform secrets into strong encryption keys, and when to use each type for secure systems.
Encryption
Learn what a Certificate Authority (CA) does, how it issues digital certificates, and why the internet relies on CAs for trust and secure HTTPS connections.
Encryption
Learn what a man in the middle attack is, how hackers exploit it to intercept sensitive data, and why strong encryption like TLS is the best defense today.
Encryption
Learn how mTLS mutual TLS works, how it authenticates both client and server, and why it is the standard for securing zero-trust API and microservice traffic.
Encryption
Learn how certificate pinning protects mobile apps and APIs from man-in-the-middle attacks by locking connections to specific certificates or public keys.
Encryption
Learn how Certificate Transparency logs expose misissued TLS certificates in real time, protecting websites and users from rogue certificate authorities.