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Pure python implementation of ChaCha20/Poly1305 AEAD cipher
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Set the initial state for the ChaCha20 AEAD
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Decrypts and authenticates ciphertext using nonce and data. If the tag is valid, the plaintext is returned. If the tag is invalid, returns None. |
Encrypts and authenticates plaintext using nonce and data. Returns the ciphertext, consisting of the encrypted plaintext and tag concatenated. |
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