From ac31e2f993e0ed76e4b6fb1d10a683e74a14a6e7 Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Thu, 8 Sep 2022 14:31:07 +0200
Subject: libtests/sha: Add tests for SHA512-256

---
 testsuites/libtests/sha/init.c | 49 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)

(limited to 'testsuites/libtests')

diff --git a/testsuites/libtests/sha/init.c b/testsuites/libtests/sha/init.c
index 6d29c3c8d0..ccb20750ec 100644
--- a/testsuites/libtests/sha/init.c
+++ b/testsuites/libtests/sha/init.c
@@ -200,6 +200,31 @@ static const unsigned char test_sha512_224_results
   }
 };
 
+static const unsigned char test_sha512_256_results
+[RTEMS_ARRAY_SIZE(test_vectors)][SHA512_256_DIGEST_LENGTH] = {
+  {
+    0x53, 0x04, 0x8e, 0x26, 0x81, 0x94, 0x1e, 0xf9,
+    0x9b, 0x2e, 0x29, 0xb7, 0x6b, 0x4c, 0x7d, 0xab,
+    0xe4, 0xc2, 0xd0, 0xc6, 0x34, 0xfc, 0x6d, 0x46,
+    0xe0, 0xe2, 0xf1, 0x31, 0x07, 0xe7, 0xaf, 0x23
+  }, {
+    0xc6, 0x72, 0xb8, 0xd1, 0xef, 0x56, 0xed, 0x28,
+    0xab, 0x87, 0xc3, 0x62, 0x2c, 0x51, 0x14, 0x06,
+    0x9b, 0xdd, 0x3a, 0xd7, 0xb8, 0xf9, 0x73, 0x74,
+    0x98, 0xd0, 0xc0, 0x1e, 0xce, 0xf0, 0x96, 0x7a
+  }, {
+    0xbd, 0xe8, 0xe1, 0xf9, 0xf1, 0x9b, 0xb9, 0xfd,
+    0x34, 0x06, 0xc9, 0x0e, 0xc6, 0xbc, 0x47, 0xbd,
+    0x36, 0xd8, 0xad, 0xa9, 0xf1, 0x18, 0x80, 0xdb,
+    0xc8, 0xa2, 0x2a, 0x70, 0x78, 0xb6, 0xa4, 0x61
+  }, {
+    0x39, 0x28, 0xe1, 0x84, 0xfb, 0x86, 0x90, 0xf8,
+    0x40, 0xda, 0x39, 0x88, 0x12, 0x1d, 0x31, 0xbe,
+    0x65, 0xcb, 0x9d, 0x3e, 0xf8, 0x3e, 0xe6, 0x14,
+    0x6f, 0xea, 0xc8, 0x61, 0xe1, 0x9b, 0x56, 0x3a
+  }
+};
+
 static void print_result(const unsigned char *r, size_t n)
 {
   size_t i;
@@ -334,6 +359,29 @@ static void test_sha512_224(void)
   }
 }
 
+static void test_sha512_256(void)
+{
+  size_t i;
+
+  printf("test SHA512-256\n");
+
+  for (i = 0; i < RTEMS_ARRAY_SIZE(test_vectors); ++i) {
+    SHA512_CTX ctx;
+    unsigned char r[SHA512_256_DIGEST_LENGTH];
+    const char *s = test_vectors[i];
+
+    SHA512_256_Init(&ctx);
+    SHA512_256_Update(&ctx, s, strlen(s));
+    SHA512_256_Final(r, &ctx);
+
+    print_result(&r[0], sizeof(r));
+
+    rtems_test_assert(
+      memcmp(&r[0], &test_sha512_256_results[i][0], sizeof(r)) == 0
+    );
+  }
+}
+
 static void Init(rtems_task_argument arg)
 {
   TEST_BEGIN();
@@ -343,6 +391,7 @@ static void Init(rtems_task_argument arg)
   test_sha384();
   test_sha512();
   test_sha512_224();
+  test_sha512_256();
   rtems_stack_checker_report_usage();
 
   TEST_END();
-- 
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