diff options
| author | Jason A. Donenfeld <Jason@zx2c4.com> | 2015-12-06 02:51:38 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-12-09 20:16:04 +0800 |
| commit | 161151d79ff4f7ed35d4ebb0eb7727a517c34ef2 (patch) | |
| tree | 8987b80f9b613c8a30280f73873dad1239247a83 /crypto/drbg.c | |
| parent | 3d5b1ecdea6fb94f8c61554fcb2ba776a2d3d0e6 (diff) | |
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/drbg.c')
0 files changed, 0 insertions, 0 deletions