Nacl xsalsa20 Encryption & Decryption

A Playgroud for nacl Secret-key encryption: crypto_stream: xsalsa20_xor

The crypto_stream_xor function guarantees that the ciphertext has the same length as the plaintext, and is the plaintext xor the output of crypto_stream. Consequently crypto_stream_xor can also be used to decrypt



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Secret-key encryption: crypto_stream

The crypto_stream_xor function encrypts a message m using a secret key k and a nonce n

NaCl does not make any promises regarding the resistance of crypto_stream to "related-key attacks." It is the caller's responsibility to use proper key-derivation functions.

NaCl supports the following secret-key encryption functions:
crypto_streamPrimitiveKEYBYTESNONCEBYTES
crypto_stream_aes128ctrAES-128-CTR1616
[TO DO:] crypto_stream_aes256ctrAES-256-CTR3216
crypto_stream_salsa208Salsa20/8328
crypto_stream_salsa2012Salsa20/12328
crypto_stream_salsa20Salsa20/20328
crypto_stream_xsalsa20XSalsa20/203224

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