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Encrypt the given ``message`` using the IETF ratified chacha20poly1305
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:param message:
:type message: bytes
:param aad:
:type aad: bytes
:param nonce:
:type nonce: bytes
:param key:
:type key: bytes
:return: authenticated ciphertext
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Decrypt the given ``ciphertext`` using the IETF ratified chacha20poly1305
construction described in RFC7539.
:param ciphertext:
:type ciphertext: bytes
:param aad:
:type aad: bytes
:param nonce:
:type nonce: bytes
:param key:
:type key: bytes
:return: message
:rtype: bytes
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Encrypt the given ``message`` using the "legacy" construction
described in draft-agl-tls-chacha20poly1305.
:param message:
:type message: bytes
:param aad:
:type aad: bytes
:param nonce:
:type nonce: bytes
:param key:
:type key: bytes
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Decrypt the given ``ciphertext`` using the "legacy" construction
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:param ciphertext: authenticated ciphertext
:type ciphertext: bytes
:param aad:
:type aad: bytes
:param nonce:
:type nonce: bytes
:param key:
:type key: bytes
:return: message
:rtype: bytes
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Encrypt the given ``message`` using the long-nonces xchacha20poly1305
construction.
:param message:
:type message: bytes
:param aad:
:type aad: bytes
:param nonce:
:type nonce: bytes
:param key:
:type key: bytes
:return: authenticated ciphertext
:rtype: bytes
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Decrypt the given ``ciphertext`` using the long-nonces xchacha20poly1305
construction.
:param ciphertext: authenticated ciphertext
:type ciphertext: bytes
:param aad:
:type aad: bytes
:param nonce:
:type nonce: bytes
:param key:
:type key: bytes
:return: message
:rtype: bytes
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