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linux/crypto/chacha20poly1305.c
Jason A. Donenfeld 161151d79f crypto: chacha20poly1305 - Skip encryption/decryption for 0-len 
If the length of the plaintext is zero, there's no need to waste cycles
on encryption and decryption. Using the chacha20poly1305 construction
for zero-length plaintexts is a common way of using a shared encryption
key for AAD authentication.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-12-09 20:16:04 +08:00

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