Code Station
THE STATIONS5 tools

WebPKI & Advanced Cryptography Station

Generate RSA keys, perform AES-GCM encryption, inspect CSR requests, sign and verify JWTs, and build CSP headers locally using Web Crypto.

Cryptographic key generation, AES-GCM operations, CSR inspection, and JWT signing run locally using Web Crypto API. Private keys and secrets never leave your device.

WebPKI & Advanced Cryptography tools

5 of 5 tools

WebPKI & Advanced Cryptography

AES-GCM Encrypt & Decrypt

AES-GCM Encrypt & Decrypt: operation mode, key mode, key length, plaintext or encrypted payload, passphrase, raw secret key (hex or base64), initialization vector (12-byte hex, optional), additional authenticated data (aad, optional) → ciphertext (base64), ciphertext (hex), authentication tag (128-bit), initialization vector (iv / nonce), json bundle format, decrypted plaintext. Process locally in your browser.

WebPKI & Advanced Cryptography

RSA Key Pair Generator

RSA Key Pair Generator: key size → pkcs#8 private key pem, spki public key pem, sha-256 public key fingerprint, key metadata (modulus & exponent). Process locally in your browser.

WebPKI & Advanced Cryptography

JWT Signer & Verifier

JWT Signer & Verifier: operation mode, algorithm, header (json), payload (json), compact jwt token, secret key (or rsa private key pem), rsa public key pem (for rs256 verification) → compact jwt token, cryptographic signature validity, decoded header json, decoded payload json, claims validation (exp, nbf, clock skew). Process locally in your browser.

WebPKI & Advanced Cryptography

CSR (Certificate Signing Request) Inspector

CSR (Certificate Signing Request) Inspector: pkcs#10 pem or base64 der → subject distinguished name (dn), subject alternative names (sans), public key algorithm & modulus, cryptographic self-signature validity, parsed asn.1 structure. Process locally in your browser.

WebPKI & Advanced Cryptography

CSP (Content Security Policy) Builder

CSP (Content Security Policy) Builder: default-src, script-src, style-src, img-src, connect-src, font-src, object-src, frame-ancestors, base-uri → http header string, security audit score & grade, actionable risk warnings, html meta tag equivalent, nginx configuration directive, next.js headers configuration. Process locally in your browser.

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