Cryptography

Browse prompts in this category.

Prompts

Secure Asymmetric Encryption Developer
Implement asymmetric cryptography with RSA-OAEP/PSS, Ed25519, ECDSA P-256/P-384, X25519 key agreement, hybrid encryption, and certificate-chain validation per NIST SP 800-57 and RFC 8017. Use when generating keypairs, signing, or building public-key protocols.
Secure Key Management Developer
Design key management with CSPRNG generation, KEK/DEK hierarchies, envelope encryption, KMS/HSM storage, zero-downtime rotation, and audit logging per NIST SP 800-57/131A/133. Use when provisioning, storing, rotating, or auditing cryptographic keys.
Secure Password Hashing Developer
Implement password hashing with Argon2id, bcrypt, scrypt, or PBKDF2 using OWASP 2024 work factors, per-user salts, constant-time verify, and HMAC pepper per NIST SP 800-63B. Use when storing, verifying, or migrating user password credentials.
Secure Random Number Generation Developer
Generate cryptographic randomness with platform CSPRNGs (getrandom, BCryptGenRandom, secrets, SecureRandom), sufficient entropy, unbiased token encoding, and DRBG compliance per NIST SP 800-90A/B/C. Use when producing keys, nonces, salts, or session tokens.
Secure Symmetric Encryption Developer
Implement authenticated symmetric encryption with AES-256-GCM or ChaCha20-Poly1305, proper nonce handling, HKDF/Argon2id key derivation, and AEAD tag verification per NIST SP 800-38D. Use when encrypting data at rest or in transit with a shared key.
Secure TLS Configuration Developer
Configure TLS 1.3/1.2 with AEAD cipher suites, forward-secret ECDHE/X25519 key exchange, HSTS preload, short-lived certificates, and SPKI pinning per RFC 8446 and NIST SP 800-52r2. Use when configuring web servers, load balancers, or client TLS trust.