From: Martin Willi Date: Mon, 1 Jun 2015 11:43:56 +0000 (+0200) Subject: crypto: chacha20 - Add a generic ChaCha20 stream cipher implementation X-Git-Tag: omap-for-v4.2/fixes-rc1^2~164^2~94 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c08d0e647305c3f8f640010a56c9e4bafb9488d3;p=pandora-kernel.git crypto: chacha20 - Add a generic ChaCha20 stream cipher implementation 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 Acked-by: Steffen Klassert Signed-off-by: Herbert Xu --- Reading git-diff-tree failed