bpo-33164: update blake2 implementation (GH-6286)

1 files changed, 43 insertions, 0 deletions

diff --git a/Modules/_blake2/impl/blake2sp-test.c b/Modules/_blake2/impl/blake2sp-test.c
new file mode 100644
index 0000000..621e350
--- /dev/null
+++ b/Modules/_blake2/impl/blake2sp-test.c
@@ -0,0 +1,43 @@
+/*
+   BLAKE2 reference source code package - optimized C implementations
+
+   Written in 2012 by Samuel Neves <sneves@dei.uc.pt>
+
+   To the extent possible under law, the author(s) have dedicated all copyright
+   and related and neighboring rights to this software to the public domain
+   worldwide. This software is distributed without any warranty.
+
+   You should have received a copy of the CC0 Public Domain Dedication along with
+   this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
+*/
+#include <stdio.h>
+#include <string.h>
+#include "blake2.h"
+#include "blake2-kat.h"
+
+int main( int argc, char **argv )
+{
+  uint8_t key[BLAKE2S_KEYBYTES];
+  uint8_t buf[KAT_LENGTH];
+
+  for( size_t i = 0; i < BLAKE2S_KEYBYTES; ++i )
+    key[i] = ( uint8_t )i;
+
+  for( size_t i = 0; i < KAT_LENGTH; ++i )
+    buf[i] = ( uint8_t )i;
+
+  for( size_t i = 0; i < KAT_LENGTH; ++i )
+  {
+    uint8_t hash[BLAKE2S_OUTBYTES];
+    if( blake2sp( hash, buf, key, BLAKE2S_OUTBYTES, i, BLAKE2S_KEYBYTES ) < 0 ||
+        0 != memcmp( hash, blake2sp_keyed_kat[i], BLAKE2S_OUTBYTES ) )
+    {
+      puts( "error" );
+      return -1;
+    }
+  }
+
+  puts( "ok" );
+  return 0;
+}
+