Add BLAKE2s implementation

1 files changed, 34 insertions, 0 deletions

diff --git a/com/BLAKE2/test_fns.c b/com/BLAKE2/test_fns.c
new file mode 100644
index 0000000..ca3551a
--- /dev/null
+++ b/com/BLAKE2/test_fns.c
@@ -0,0 +1,34 @@
+#include "blake2s.h"
+#include <assert.h>
+#include <stdio.h>
+
+_Static_assert(sizeof(struct BLAKE2s_param) == (8 * sizeof(uint32_t)), "sizeof struct BLAKE2s_param");
+
+int
+main(void)
+{
+  assert(rotr_u32(0xdecafade, 16) == 0xfadedeca);
+  assert(rotr_u32(0xdecafade, 8) == 0xdedecafa);
+
+  union {
+    struct BLAKE2s_param block;
+    uint32_t data[8];
+  } p;
+  p.block.outlen = 32;
+  p.block.keylen = 0;
+  p.block.fanout = 1;
+  p.block.depth = 1;
+  p.block.leaf_length = 0;
+  p.block.node_offset = 0;
+  p.block.node_offset_ex = 0;
+  p.block.node_depth = 0;
+  p.block.inner_length = 0;
+  p.block.salt = 0;
+  p.block.personalization = 0;
+
+  for (int i = 0; i < 8; ++i) printf("%08x ", p.data[i]);
+  printf("\n");
+
+  assert(p.data[0] == (0x01010000 ^ 32));
+
+}