A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 18:51:56 -04:00
Code Issues Projects Releases Packages Wiki Activity

crypto: chacha20 - Add a generic ChaCha20 stream cipher implementation

Browse source 
ChaCha20 is a high speed 256-bit key size stream cipher algorithm designed by
Daniel J. Bernstein. It is further specified in RFC7539 for use in IETF
protocols as a building block for the ChaCha20-Poly1305 AEAD.

This is a portable C implementation without any architecture specific
optimizations. It uses a 16-byte IV, which includes the 12-byte ChaCha20 nonce
prepended by the initial block counter. Some algorithms require an explicit
counter value, for example the mentioned AEAD construction.

Signed-off-by: Martin Willi <[email protected]>
Acked-by: Steffen Klassert <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
This commit is contained in:
Martin Willi 2015-06-01 13:43:56 +02:00 • committed by Herbert Xu
commit c08d0e6473
3 changed files with 230 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

13
crypto/Kconfig
View file

@ -1156,6 +1156,19 @@ config CRYPTO_SALSA20_X86_64
The Salsa20 stream cipher algorithm is designed by Daniel J.
Bernstein <[email protected]>. See <http://cr.yp.to/snuffle.html>
config CRYPTO_CHACHA20
tristate "ChaCha20 cipher algorithm"
select CRYPTO_BLKCIPHER
help
ChaCha20 cipher algorithm, RFC7539.
ChaCha20 is a 256-bit high-speed stream cipher designed by Daniel J.
Bernstein and further specified in RFC7539 for use in IETF protocols.
This is the portable C implementation of ChaCha20.
See also:
<http://cr.yp.to/chacha/chacha-20080128.pdf>
config CRYPTO_SEED
tristate "SEED cipher algorithm"
select CRYPTO_ALGAPI