Merge branch 'implem-ti'

1 files changed, 36 insertions, 0 deletions

diff --git a/src/add_threshold/random.c b/src/add_threshold/random.c
new file mode 100644
index 0000000..a966a8e
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+++ b/src/add_threshold/random.c
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+/*
+Implementation of the Lilliput-AE tweakable block cipher.
+
+Authors, hereby denoted as "the implementer":
+    Kévin Le Gouguec,
+    2019.
+
+For more information, feedback or questions, refer to our website:
+https://paclido.fr/lilliput-ae
+
+To the extent possible under law, the implementer has waived all copyright
+and related or neighboring rights to the source code in this file.
+http://creativecommons.org/publicdomain/zero/1.0/
+
+---
+
+This file provides a system-specific function to generate random bytes.
+*/
+
+/* glibc < 2.25 does not provide getrandom(2): use the system call. */
+
+#define _GNU_SOURCE
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include <unistd.h>
+#include <sys/syscall.h>
+
+#include "random.h"
+
+
+void randombytes(size_t nb, uint8_t out[nb])
+{
+    syscall(SYS_getrandom, out, nb, 0);
+}