Explore modern TLS cryptographic handshakes, ECDHE key exchanges, and AES-GCM cipher suite security ratings.
Controls the tls protocol version setting for TLS 1.2 / 1.3 Cipher Suite & Handshake Inspector in real time.
Controls the key exchange curve / group setting for TLS 1.2 / 1.3 Cipher Suite & Handshake Inspector in real time.
Configures tls version during client-side tls 1.2 / 1.3 cipher suite & handshake inspector computation.
Configures sni host during client-side tls 1.2 / 1.3 cipher suite & handshake inspector computation.
Server accepts early data and sends its ephemeral key share to achieve Forward Secrecy for all subsequent application data.
Confirms that neither the ClientHello nor ServerHello was modified by a Man-in-the-Middle attacker.
Both client and server derive client_application_traffic_secret_0 and server_application_traffic_secret_0.
Verify that your tls protocol version matches the expected string format. Load a built-in sample preset to compare structural formatting.
Check the key exchange curve / group setting in TLS 1.2 / 1.3 Cipher Suite & Handshake Inspector to ensure encoding, precision, or specification version matches your target runtime.
AES-GCM is an Authenticated Encryption with Associated Data (AEAD) algorithm. It generates a 128-bit GHASH polynomial authentication tag over the ciphertext. If any byte is altered in transit, the verification step mathematically fails and the payload is discarded before decryption.
IANA RFC standard uses verbose syntax like TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 . OpenSSL uses concise hyphenated syntax like ECDHE-RSA-AES256-GCM-SHA384 . In TLS 1.3, both standards converged to unified names like TLS_AES_256_GCM_SHA384 .
Because 0-RTT data is encrypted with a pre-shared key before a fresh Diffie-Hellman exchange completes, an active attacker can capture the packet and replay it to the server. Therefore, RFC 8446 strictly mandates that 0-RTT must only be used for idempotent requests (such as HTTP GET).
Understanding why RFC 8446 is a quantum leap in speed, security, and metadata privacy.
Generate Curve25519 public/private keys and assemble valid wg0.conf tunnel profiles with zero private key retention.
Assemble unified .ovpn configuration profiles with embedded CA, client certs, and TLS auth keys for mobile and desktop.
Audit website HTTP response headers for missing Content-Security-Policy, Strict-Transport-Security, and X-Frame-Options.
Convert JSON Web Keys (JWKS / JWK) to standard PKCS#8 PEM public and private keys for JWT verification.
JSON Web Tokens dekodieren, Header- und Payload-Claims prüfen, Ablaufzeit berechnen und Integrität lokal verifizieren.
Erzeugen Sie kryptografisch sichere Passwörter mit hoher Entropie, einprägsame Diceware-Passphrasen, PINs und API-Token mit nativer Web Crypto CSPRNG nach NIST SP 800-63B.