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Well, NaCl (DJB's encryption library) uses XChaCha20, doesn't it?

Edit: Nope, it's XSalsa20.




NaCl provides Salsa20 and XSalsa20 (https://nacl.cr.yp.to/stream.html).

libsodium adds ChaCha20 (https://download.libsodium.org/doc/advanced/chacha20.html) but not XChaCha20.



ugh, an extra ietf variant that pads the remaining 64-bit from the nonce to fit 96 bit thats incompatible with all the implementations out there... :-(

why can't we get our shit together...


NaCl supports several secret key encryption algorithms: http://nacl.cr.yp.to/stream.html

aes-128 in counter mode, Salsa20 with 8, 12 and 20 rounds and XSalsa with 20 rounds.

Som other implementations of NaCl/Sodium have restricted the different algs. TweekNaCl only supports XSalsa20 and Salsa20.




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