diff options
author | Anton Kling <anton@kling.gg> | 2023-10-30 22:12:14 +0100 |
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committer | Anton Kling <anton@kling.gg> | 2023-10-31 00:18:38 +0100 |
commit | 8a9208612eec8ddae4c418485d848ecfa0613699 (patch) | |
tree | 2f4b29200c2f0c19ae52f45bdb9b38a41b356e30 /crypto/ChaCha20/chacha20.c | |
parent | ca76600acc8bf7a02346efa5bd8f17072210ec01 (diff) |
Meta: Move kernel and userland to their own folders.
This is to allow both the kernel and the userland to share certain
header files and to make the folder structure a bit more clear.
Diffstat (limited to 'crypto/ChaCha20/chacha20.c')
-rw-r--r-- | crypto/ChaCha20/chacha20.c | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/crypto/ChaCha20/chacha20.c b/crypto/ChaCha20/chacha20.c deleted file mode 100644 index 5bf7aa2..0000000 --- a/crypto/ChaCha20/chacha20.c +++ /dev/null @@ -1,29 +0,0 @@ -#include "chacha20.h" - -#define ROTL(a, b) (((a) << (b)) | ((a) >> (32 - (b)))) -#define QR(a, b, c, d) \ - (a += b, d ^= a, d = ROTL(d, 16), c += d, b ^= c, b = ROTL(b, 12), \ - a += b, d ^= a, d = ROTL(d, 8), c += d, b ^= c, b = ROTL(b, 7)) -#define ROUNDS 20 - -void chacha_block(uint32_t out[16], uint32_t const in[16]) -{ - int i; - uint32_t x[16]; - - for (i = 0; i < 16; ++i) - x[i] = in[i]; - for (i = 0; i < ROUNDS; i += 2) { - QR(x[0], x[4], x[8], x[12]); - QR(x[1], x[5], x[9], x[13]); - QR(x[2], x[6], x[10], x[14]); - QR(x[3], x[7], x[11], x[15]); - - QR(x[0], x[5], x[10], x[15]); - QR(x[1], x[6], x[11], x[12]); - QR(x[2], x[7], x[8], x[13]); - QR(x[3], x[4], x[9], x[14]); - } - for (i = 0; i < 16; ++i) - out[i] = x[i] + in[i]; -} |