Green Team

SECURECRYPT

AES-256-GCM encryption with passphrase or key-based auth, portable ciphertext packages, and one-click export.

Operation Mode

Plaintext Input

If empty, a random 256-bit key is generated.

Exactly 32 bytes (base64). Overrides passphrase.

How SecureCrypt Works

  • Uses AES-256-GCM — a military-grade authenticated encryption algorithm.
  • Passphrase-based key derivation uses PBKDF2 with 300,000+ iterations for brute-force resistance.
  • If no passphrase or key is provided, a cryptographically random 256-bit key is generated.
  • The output is a portable Base64 package containing the ciphertext, IV, salt, and auth tag.
  • The authentication tag ensures data integrity — any tampering will cause decryption to fail.
  • Supply the same passphrase or Base64 key during decryption to recover the original text.
  • Generated keys should be saved securely — they cannot be recovered after the session.
  • All operations are performed server-side over a secure, authenticated connection.

Cryptographic Specs

CipherAES-256-GCM
Key Length256 bit
KDFPBKDF2-SHA512
Auth Tag128 bit
IV Length96 bit
Output FormatBase64 Package