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int Salsa20_stream_init(uint8_t *key, size_t keylen,
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uint8_t *nonce, size_t nonce_len,
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void **pSalsaState);
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int Salsa20_stream_destroy(void *salsaState);
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int Salsa20_stream_encrypt(void *salsaState,
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const uint8_t in[],
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uint8_t out[], size_t len);
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c ó& e Zd ZdZd ZddZddZy)Ú Salsa20CipherzSalsa20 cipher object. Do not create it directly. Use :py:func:`new`
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instead.
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:var nonce: The nonce with length 8
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:vartype nonce: byte string
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c
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See also `new()` at the module level.z+Incorrect key length for Salsa20 (%d bytes)é z-Incorrect nonce length for Salsa20 (%d bytes)Nz'Error %d instantiating a Salsa20 cipheré )ÚlenÚkey_sizeÚ
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j | j j « t |« t |« t t |« « « }|rt d|z « | t |« S y)a« Encrypt a piece of data.
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Args:
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plaintext(bytes/bytearray/memoryview): The data to encrypt, of any size.
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Keyword Args:
|
output(bytes/bytearray/memoryview): The location where the ciphertext
|
is written to. If ``None``, the ciphertext is returned.
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Returns:
|
If ``output`` is ``None``, the ciphertext is returned as ``bytes``.
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Otherwise, ``None``.
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Nz4output must be a bytearray or a writeable memoryviewz9output must have the same length as the input (%d bytes)z&Error %d while encrypting with Salsa20) r r r Ú TypeErrorr r ÚSalsa20_stream_encryptr r r
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ciphertextr s r ÚencryptzSalsa20Cipher.encryptS sÇ ð >Ü-¬c°)«nÓ=Jà Jä& vÔ.Ü Ð VÓWÐWä9~¤ V£Ò,Ü ð "0Ü25°i³.ñ"Aó Bð Bô "×8Ñ8Ø)-¯©¯ © Ó):Ü)4°YÓ)?Ü)4°ZÓ)@Ü)1´#°i³.Ó)Aó Cñ
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Ü Ð EÈÑ NÓOÐ Oà >Ü! *Ó-Ð -àr" c ó | j ||¬« S # t $ r)}t t |« j dd« « d}~ww xY w)a± Decrypt a piece of data.
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|
ciphertext(bytes/bytearray/memoryview): The data to decrypt, of any size.
|
Keyword Args:
|
output(bytes/bytearray/memoryview): The location where the plaintext
|
is written to. If ``None``, the plaintext is returned.
|
Returns:
|
If ``output`` is ``None``, the plaintext is returned as ``bytes``.
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Otherwise, ``None``.
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)r' ÚencÚdecN)r) r ÚstrÚreplace)r r( r' Úes r ÚdecryptzSalsa20Cipher.decrypty sD ð ;Ø<<
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__module__Ú __qualname__Ú__doc__r! r) r0 © r" r r r . s ñò!ó:$ôL;r" r Nc ó4 | t d« }t | |« S )a% Create a new Salsa20 cipher
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:keyword key: The secret key to use. It must be 16 or 32 bytes long.
|
:type key: bytes/bytearray/memoryview
|
|
:keyword nonce:
|
A value that must never be reused for any other encryption
|
done with this key. It must be 8 bytes long.
|
|
If not provided, a random byte string will be generated (you can read
|
it back via the ``nonce`` attribute of the returned object).
|
:type nonce: bytes/bytearray/memoryview
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|
:Return: a :class:`Crypto.Cipher.Salsa20.Salsa20Cipher` object
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