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author | Jason A. Donenfeld <Jason@zx2c4.com> | 2015-12-06 02:51:38 +0100 |
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committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-12-09 20:16:04 +0800 |
commit | a6b4ab981699dcddd849cbca065f60d7914cb559 (patch) | |
tree | ab8a4d3bfc4b267ec3a157898b4d15252c9d08a5 /crypto/pcrypt.c | |
parent | 7185f32fb45d8c5f03780a40b0c74d9802f3cb2c (diff) | |
download | linux-crypto-a6b4ab981699dcddd849cbca065f60d7914cb559.tar.gz linux-crypto-a6b4ab981699dcddd849cbca065f60d7914cb559.zip |
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>
Diffstat (limited to 'crypto/pcrypt.c')
0 files changed, 0 insertions, 0 deletions