From 12abd974fdf8362d41d688c478528c6b8047fa87 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Sat, 8 Jan 2022 22:57:27 +0100 Subject: Add BLAKE2X MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- libblake_internal_blake2s_output_digest.c | 32 +++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 libblake_internal_blake2s_output_digest.c (limited to 'libblake_internal_blake2s_output_digest.c') diff --git a/libblake_internal_blake2s_output_digest.c b/libblake_internal_blake2s_output_digest.c new file mode 100644 index 0000000..d7b891c --- /dev/null +++ b/libblake_internal_blake2s_output_digest.c @@ -0,0 +1,32 @@ +/* See LICENSE file for copyright and license details. */ +#include "common.h" + +static void +encode_uint32_le(unsigned char *out, uint_least32_t value, size_t bytes) +{ + switch (bytes) { + default: + out[3] = (unsigned char)((value >> 24) & 255); + /* fall through */ + case 3: + out[2] = (unsigned char)((value >> 16) & 255); + /* fall through */ + case 2: + out[1] = (unsigned char)((value >> 8) & 255); + /* fall through */ + case 1: + out[0] = (unsigned char)((value >> 0) & 255); + /* fall through */ + case 0: + break; + } +} + +void +libblake_internal_blake2s_output_digest(struct libblake_blake2s_state *state, size_t output_len, unsigned char *output) +{ + size_t i, j; + + for (i = 0, j = 0; i < output_len; i += 4, j += 1) + encode_uint32_le(&output[i], state->h[j], output_len - i); +} -- cgit v1.2.3-70-g09d2