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ChaCha20-Poly1305

v1.0.0

Authenticated encryption and decryption with ChaCha20-Poly1305 (RFC 8439)

Browser-based Chacha20 Poly1305. All operations run locally — no data is sent to a server.

How to use
  • Enter your input data and configure the operation settings.
  • Click Run to compute the result.
  • Use the Copy button to copy the output.
  • Try a preset from the example picker to see sample input.
Output
ChaCha20-Poly1305 AEAD — 256-bit key, 96-bit nonce, 128-bit authentication tag (RFC 8439)
0-bit (0B)
0-bit (0B)
PLAINTEXT
CIPHERTEXT