libtests/md501: Use test cases of RFC 2202

2 files changed, 200 insertions, 160 deletions

diff --git a/testsuites/libtests/md501/init.c b/testsuites/libtests/md501/init.c
index 6f8b6bf392..cf888fba05 100644
--- a/testsuites/libtests/md501/init.c
+++ b/testsuites/libtests/md501/init.c
@@ -20,174 +20,213 @@
 
 #include <md5.h>
 
-static const uint32_t sample_data[] = {
-  0U,
-  1U,
-  1U,
-  2U,
-  3U,
-  5U,
-  8U,
-  13U,
-  21U,
-  34U,
-  55U,
-  89U,
-  144U,
-  233U,
-  377U,
-  610U,
-  987U,
-  1597U,
-  2584U,
-  4181U,
-  6765U,
-  10946U,
-  17711U,
-  28657U,
-  46368U,
-  75025U,
-  121393U,
-  196418U,
-  317811U,
-  514229U,
-  832040U,
-  1346269U,
-  2178309U,
-  3524578U,
-  5702887U,
-  9227465U,
-  14930352U,
-  24157817U,
-  39088169U,
-  63245986U,
-  102334155U,
-  165580141U,
-  267914296U,
-  433494437U,
-  701408733U,
-  1134903170U,
-  1836311903U,
-  2971215073U
-};
-
-static const uint8_t
-expected_digests[RTEMS_ARRAY_SIZE(sample_data)][16] = {
-  { 0xd4, 0x1d, 0x8c, 0xd9, 0x8f, 0x00, 0xb2, 0x04,
-    0xe9, 0x80, 0x09, 0x98, 0xec, 0xf8, 0x42, 0x7e },
-  { 0x93, 0xb8, 0x85, 0xad, 0xfe, 0x0d, 0xa0, 0x89,
-    0xcd, 0xf6, 0x34, 0x90, 0x4f, 0xd5, 0x9f, 0x71 },
-  { 0xc4, 0x10, 0x3f, 0x12, 0x2d, 0x27, 0x67, 0x7c,
-    0x9d, 0xb1, 0x44, 0xca, 0xe1, 0x39, 0x4a, 0x66 },
-  { 0x69, 0x3e, 0x9a, 0xf8, 0x4d, 0x3d, 0xfc, 0xc7,
-    0x1e, 0x64, 0x0e, 0x00, 0x5b, 0xdc, 0x5e, 0x2e },
-  { 0xf1, 0xd3, 0xff, 0x84, 0x43, 0x29, 0x77, 0x32,
-    0x86, 0x2d, 0xf2, 0x1d, 0xc4, 0xe5, 0x72, 0x62 },
-  { 0xca, 0x9c, 0x49, 0x1a, 0xc6, 0x6b, 0x2c, 0x62,
-    0x50, 0x08, 0x82, 0xe9, 0x3f, 0x37, 0x19, 0xa8 },
-  { 0x73, 0x19, 0x46, 0x88, 0x47, 0xd7, 0xb1, 0xae,
-    0xe4, 0x0d, 0xbf, 0x5d, 0xd9, 0x63, 0xc9, 0x99 },
-  { 0xd3, 0x10, 0xa4, 0x04, 0x83, 0xf9, 0x39, 0x9d,
-    0xd7, 0xed, 0x17, 0x12, 0xe0, 0xfd, 0xd7, 0x02 },
-  { 0xfa, 0x5a, 0xd9, 0xa8, 0x55, 0x7e, 0x5a, 0x84,
-    0xcf, 0x23, 0xe5, 0x2d, 0x3d, 0x3a, 0xdf, 0x77 },
-  { 0x7d, 0x54, 0x9f, 0x72, 0x14, 0x2d, 0xc6, 0xd3,
-    0x55, 0xff, 0x74, 0x2e, 0xdf, 0xe0, 0xd2, 0x4c },
-  { 0xdc, 0x3e, 0xd0, 0xe0, 0x41, 0x89, 0x4e, 0x29,
-    0xac, 0xfd, 0xb8, 0xf6, 0xf0, 0xd7, 0xcb, 0x06 },
-  { 0x32, 0xe0, 0x77, 0xfa, 0xba, 0x23, 0x2f, 0x08,
-    0xb1, 0x6a, 0xe0, 0x82, 0xaf, 0xd1, 0x66, 0x25 },
-  { 0x9e, 0x7f, 0x6f, 0xa5, 0xa4, 0x5d, 0xad, 0x95,
-    0xf3, 0xa7, 0x2e, 0x1c, 0x5a, 0xec, 0x89, 0x36 },
-  { 0xcb, 0x7d, 0xab, 0x55, 0xe7, 0x17, 0x7d, 0xf2,
-    0xc7, 0x28, 0xa1, 0x7b, 0xef, 0xe9, 0x04, 0xe9 },
-  { 0x5c, 0x90, 0x2d, 0x82, 0x30, 0x42, 0x74, 0xc5,
-    0x71, 0x21, 0xfb, 0x7b, 0x3e, 0x0e, 0x02, 0x5f },
-  { 0x5c, 0x49, 0xa3, 0xd4, 0xa3, 0x19, 0xc5, 0x61,
-    0x3f, 0x1a, 0x00, 0x1b, 0x50, 0xc5, 0xff, 0x69 },
-  { 0xc9, 0xf9, 0xc8, 0xba, 0x6f, 0x99, 0x68, 0x56,
-    0x25, 0x84, 0x3b, 0xdc, 0x10, 0x3c, 0xef, 0x5d },
-  { 0x1f, 0xfa, 0x2f, 0x79, 0xbc, 0x11, 0xbb, 0x25,
-    0xed, 0x71, 0x24, 0x4b, 0xb6, 0x98, 0x43, 0x4d },
-  { 0xe3, 0x7d, 0xca, 0x05, 0x2c, 0x66, 0xb6, 0x94,
-    0xb6, 0x1d, 0x4e, 0xb8, 0xcf, 0x96, 0x4f, 0x92 },
-  { 0xe1, 0x87, 0xd2, 0xe8, 0x01, 0xf1, 0xa8, 0x8a,
-    0x85, 0x75, 0x88, 0x53, 0x1e, 0x89, 0xba, 0x5b },
-  { 0x9f, 0xe1, 0x02, 0x79, 0x78, 0x66, 0xde, 0xc1,
-    0xa8, 0x19, 0x43, 0xbb, 0x12, 0xa6, 0x83, 0x25 },
-  { 0xd2, 0xc9, 0xb2, 0xc2, 0x33, 0x6b, 0xe6, 0x00,
-    0x54, 0xd9, 0xee, 0xdc, 0x73, 0x56, 0x63, 0x5a },
-  { 0x8d, 0x22, 0x28, 0x5d, 0x43, 0x7e, 0x5e, 0x7c,
-    0xc7, 0x95, 0x99, 0x14, 0x6e, 0xdb, 0x0b, 0x8e },
-  { 0xb0, 0x94, 0x12, 0xcf, 0xac, 0xb8, 0x62, 0x66,
-    0x82, 0x42, 0xda, 0x19, 0x2d, 0xf4, 0x9c, 0xfc },
-  { 0x6d, 0xe2, 0xdb, 0x98, 0x90, 0x1c, 0xd1, 0xa0,
-    0x33, 0x5b, 0xe8, 0x41, 0x85, 0xf6, 0xb0, 0xa9 },
-  { 0xdd, 0x5a, 0x0e, 0x73, 0x04, 0x50, 0x0c, 0x82,
-    0x1c, 0xac, 0x16, 0x7a, 0xfc, 0x2c, 0x49, 0x9b },
-  { 0x50, 0xb1, 0x37, 0xe3, 0x2b, 0x8d, 0x73, 0x0e,
-    0x71, 0xef, 0x80, 0x04, 0x77, 0xe3, 0x33, 0x88 },
-  { 0x34, 0xb4, 0x5c, 0xc2, 0xc5, 0x9f, 0xa1, 0x38,
-    0x7a, 0x63, 0x72, 0x2d, 0x27, 0x9d, 0x7e, 0xe2 },
-  { 0x1d, 0x80, 0x21, 0xb2, 0x30, 0x62, 0x00, 0xd0,
-    0x7f, 0x44, 0x7b, 0x02, 0x13, 0x84, 0x46, 0x06 },
-  { 0xa9, 0x26, 0xa4, 0x59, 0x8f, 0xe3, 0x72, 0x63,
-    0xa9, 0xf3, 0xd9, 0xe1, 0x71, 0x8d, 0x53, 0x04 },
-  { 0xbb, 0xcf, 0xc7, 0xe1, 0xb1, 0x05, 0x83, 0x36,
-    0x06, 0xd4, 0xc1, 0x7b, 0x59, 0x9b, 0x38, 0xd3 },
-  { 0xe1, 0xb8, 0xab, 0x14, 0x9f, 0x77, 0x78, 0x48,
-    0x52, 0x46, 0xad, 0x11, 0x0d, 0x14, 0x1e, 0x5f },
-  { 0x8e, 0xeb, 0x2d, 0xe2, 0x6d, 0xf3, 0xe0, 0xff,
-    0x77, 0x35, 0x46, 0x58, 0xb5, 0xa7, 0xa9, 0x81 },
-  { 0xe6, 0x5a, 0xd2, 0x29, 0x38, 0x38, 0xc4, 0x49,
-    0x34, 0xad, 0x74, 0x93, 0x1b, 0x22, 0x4e, 0xd2 },
-  { 0x72, 0xb3, 0x93, 0xea, 0xfb, 0xcd, 0xa3, 0xb6,
-    0x42, 0xd9, 0xd4, 0x32, 0xcf, 0x14, 0x0d, 0x99 },
-  { 0xd6, 0xc2, 0x60, 0x2f, 0x28, 0xc2, 0xc8, 0x79,
-    0x3b, 0x98, 0x8b, 0x33, 0x5f, 0x55, 0xe5, 0xc6 },
-  { 0x48, 0xa4, 0x0f, 0xc1, 0x6e, 0xe1, 0x9b, 0xbd,
-    0x5f, 0x55, 0x2f, 0x1d, 0x66, 0x0d, 0x6f, 0x2e },
-  { 0x65, 0x85, 0x50, 0x04, 0xb5, 0xa6, 0x14, 0x93,
-    0xb4, 0xe3, 0x32, 0x49, 0x08, 0x27, 0x1a, 0xd4 },
-  { 0xd1, 0xb2, 0xe5, 0xcd, 0x38, 0x11, 0xec, 0x0f,
-    0xe4, 0x84, 0x11, 0x46, 0x6c, 0x2e, 0x8d, 0x13 },
-  { 0x59, 0x3d, 0x1e, 0x9c, 0x81, 0x51, 0x1d, 0x30,
-    0x93, 0x57, 0xaf, 0xde, 0x1f, 0x91, 0x15, 0x11 },
-  { 0x57, 0x9d, 0x78, 0xd1, 0xf3, 0xc9, 0xa1, 0xdf,
-    0x0c, 0x68, 0x70, 0x60, 0x4b, 0xab, 0xa4, 0xb4 },
-  { 0xba, 0x86, 0x0d, 0xd4, 0xda, 0xc8, 0x3e, 0x7a,
-    0x5c, 0xa5, 0xda, 0x2b, 0x51, 0x12, 0xca, 0xfb },
-  { 0xda, 0x10, 0xff, 0x74, 0x10, 0xfe, 0x79, 0xa3,
-    0x33, 0x68, 0xac, 0x10, 0x99, 0x13, 0xc8, 0x2a },
-  { 0xc5, 0x47, 0xa0, 0xd7, 0x8b, 0xcd, 0xc4, 0xc5,
-    0xdb, 0x0d, 0x5c, 0xba, 0x21, 0xba, 0xa9, 0x68 },
-  { 0x8f, 0xa8, 0x7b, 0x3d, 0xfd, 0xd3, 0x41, 0x6b,
-    0xa7, 0x3f, 0xb0, 0x25, 0x7d, 0xe4, 0xa7, 0x48 },
-  { 0xc9, 0x64, 0x99, 0x9c, 0xaa, 0x54, 0x7c, 0x95,
-    0xd0, 0x78, 0x97, 0x16, 0xfe, 0x55, 0xf7, 0x99 },
-  { 0xa4, 0xea, 0xa3, 0x20, 0xb7, 0xa2, 0x71, 0xb7,
-    0xdd, 0x59, 0xca, 0x81, 0xe8, 0x19, 0x04, 0xb3 },
-  { 0x11, 0x99, 0x0a, 0xab, 0x09, 0xa0, 0x7d, 0x96,
-    0x9e, 0x0a, 0xe6, 0x07, 0xe5, 0x6b, 0xfb, 0x7c }
+#ifndef MD5_BLOCK_SIZE
+  #define MD5_BLOCK_SIZE 64
+#endif
+
+#ifndef MD5_DIGEST_LENGTH
+  #define MD5_DIGEST_LENGTH 16
+#endif
+
+/* Test cases according to RFC 2202 */
+
+static const uint8_t key_1[] = {
+  0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
+  0x0b, 0x0b, 0x0b
 };
 
-static void test(void)
+static const uint8_t data_1[] = {
+  'H', 'i', ' ', 'T', 'h', 'e', 'r', 'e'
+};
+
+static const uint8_t digest_1[MD5_DIGEST_LENGTH] = {
+  0x92, 0x94, 0x72, 0x7a, 0x36, 0x38, 0xbb, 0x1c, 0x13, 0xf4, 0x8e, 0xf8, 0x15,
+  0x8b, 0xfc, 0x9d
+};
+
+static const uint8_t key_2[] = {
+  'J', 'e', 'f', 'e'
+};
+
+static const uint8_t data_2[] = {
+  'w', 'h', 'a', 't', ' ', 'd', 'o', ' ', 'y', 'a', ' ', 'w', 'a', 'n', 't',
+  ' ', 'f', 'o', 'r', ' ', 'n', 'o', 't', 'h', 'i', 'n', 'g', '?'
+};
+
+static const uint8_t digest_2[MD5_DIGEST_LENGTH] = {
+  0x75, 0x0c, 0x78, 0x3e, 0x6a, 0xb0, 0xb5, 0x03, 0xea, 0xa8, 0x6e, 0x31, 0x0a,
+  0x5d, 0xb7, 0x38
+};
+
+static const uint8_t key_3[] = {
+  0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+  0xaa, 0xaa, 0xaa
+};
+
+static const uint8_t data_3[] = {
+  0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
+  0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
+  0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
+  0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd
+};
+
+static const uint8_t digest_3[MD5_DIGEST_LENGTH] = {
+  0x56, 0xbe, 0x34, 0x52, 0x1d, 0x14, 0x4c, 0x88, 0xdb, 0xb8, 0xc7, 0x33, 0xf0,
+  0xe8, 0xb3, 0xf6
+};
+
+static const uint8_t key_4[] = {
+  0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d,
+  0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19
+};
+
+static const uint8_t data_4[] = {
+  0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
+  0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
+  0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
+  0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd
+};
+
+static const uint8_t digest_4[MD5_DIGEST_LENGTH] = {
+  0x69, 0x7e, 0xaf, 0x0a, 0xca, 0x3a, 0x3a, 0xea, 0x3a, 0x75, 0x16, 0x47, 0x46,
+  0xff, 0xaa, 0x79
+};
+
+static const uint8_t key_5[] = {
+  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
+  0x0c, 0x0c, 0x0c
+};
+
+static const uint8_t data_5[] = {
+  'T', 'e', 's', 't', ' ', 'W', 'i', 't', 'h', ' ', 'T', 'r', 'u', 'n', 'c',
+  'a', 't', 'i', 'o', 'n'
+};
+
+static const uint8_t digest_5[MD5_DIGEST_LENGTH] = {
+  0x56, 0x46, 0x1e, 0xf2, 0x34, 0x2e, 0xdc, 0x00, 0xf9, 0xba, 0xb9, 0x95, 0x69,
+  0x0e, 0xfd, 0x4c
+};
+
+static const uint8_t key_6[] = {
+  0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+  0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+  0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+  0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+  0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+  0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+  0xaa, 0xaa
+};
+
+static const uint8_t data_6[] = {
+  'T', 'e', 's', 't', ' ', 'U', 's', 'i', 'n', 'g', ' ', 'L', 'a', 'r', 'g',
+  'e', 'r', ' ', 'T', 'h', 'a', 'n', ' ', 'B', 'l', 'o', 'c', 'k', '-', 'S',
+  'i', 'z', 'e', ' ', 'K', 'e', 'y', ' ', '-', ' ', 'H', 'a', 's', 'h', ' ',
+  'K', 'e', 'y', ' ', 'F', 'i', 'r', 's', 't'
+};
+
+static const uint8_t digest_6[MD5_DIGEST_LENGTH] = {
+  0x6b, 0x1a, 0xb7, 0xfe, 0x4b, 0xd7, 0xbf, 0x8f, 0x0b, 0x62, 0xe6, 0xce, 0x61,
+  0xb9, 0xd0, 0xcd
+};
+
+static const uint8_t key_7[] = {
+  0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+  0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+  0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+  0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+  0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+  0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+  0xaa, 0xaa
+};
+
+static const uint8_t data_7[] = {
+  'T', 'e', 's', 't', ' ', 'U', 's', 'i', 'n', 'g', ' ', 'L', 'a', 'r', 'g',
+  'e', 'r', ' ', 'T', 'h', 'a', 'n', ' ', 'B', 'l', 'o', 'c', 'k', '-', 'S',
+  'i', 'z', 'e', ' ', 'K', 'e', 'y', ' ', 'a', 'n', 'd', ' ', 'L', 'a', 'r',
+  'g', 'e', 'r', ' ', 'T', 'h', 'a', 'n', ' ', 'O', 'n', 'e', ' ', 'B', 'l',
+  'o', 'c', 'k', '-', 'S', 'i', 'z', 'e', ' ', 'D', 'a', 't', 'a'
+};
+
+static const uint8_t digest_7[MD5_DIGEST_LENGTH] = {
+  0x6f, 0x63, 0x0f, 0xad, 0x67, 0xcd, 0xa0, 0xee, 0x1f, 0xb1, 0xf5, 0x62, 0xdb,
+  0x3a, 0xa5, 0x3e
+};
+
+static void test_md5(
+ const uint8_t *key,
+ size_t key_size,
+ const uint8_t *data,
+ size_t data_size,
+ const uint8_t expected_digest[MD5_DIGEST_LENGTH]
+)
 {
-  size_t n = RTEMS_ARRAY_SIZE(sample_data);
+  MD5_CTX inner_ctx;
+  MD5_CTX outer_ctx;
+  uint8_t inner_digest[MD5_DIGEST_LENGTH];
+  uint8_t outer_digest[MD5_DIGEST_LENGTH];
+  uint8_t key_buf[MD5_DIGEST_LENGTH];
+  uint8_t buf[MD5_BLOCK_SIZE];
   size_t i;
 
-  for (i = 0; i < n; ++i) {
-    uint8_t digest[16];
-    MD5_CTX ctx;
+  if (key_size > MD5_BLOCK_SIZE) {
+    MD5_CTX tmp_ctx;
+
+    MD5Init(&tmp_ctx);
+    MD5Update(&tmp_ctx, key, key_size);
+    MD5Final(&key_buf[0], &tmp_ctx);
+
+    key = &key_buf[0];
+    key_size = MD5_DIGEST_LENGTH;
+  }
+
+  /* Inner digest */
+
+  MD5Init(&inner_ctx);
+
+  /* Pad the key for the inner digest */
+  for (i = 0; i < key_size; ++i) {
+    buf[i] = key[i] ^ 0x36;
+  }
+  for (i = key_size; i < MD5_BLOCK_SIZE; ++i) {
+    buf[i] = 0x36;
+  }
+
+  MD5Update(&inner_ctx, &buf[0], MD5_BLOCK_SIZE);
+  MD5Update(&inner_ctx, data, data_size);
+
+  MD5Final(&inner_digest[0], &inner_ctx);
+
+  /* Outer digest */
 
-    MD5Init(&ctx);
-    MD5Update(&ctx, &sample_data [0], i);
-    MD5Final(&digest [0], &ctx);
+  MD5Init(&outer_ctx);
 
-    rtems_test_assert(
-      memcmp(&digest[0], &expected_digests[i][0], sizeof(digest)) == 0
-    );
+  /* Pad the key for outer digest */
+  for (i = 0; i < key_size; ++i) {
+    buf[i] = key[i] ^ 0x5c;
   }
+  for (i = key_size; i < MD5_BLOCK_SIZE; ++i) {
+    buf[i] = 0x5c;
+  }
+
+  MD5Update(&outer_ctx, &buf[0], MD5_BLOCK_SIZE);
+  MD5Update(&outer_ctx, &inner_digest[0], MD5_DIGEST_LENGTH);
+
+  MD5Final(&outer_digest[0], &outer_ctx);
+
+  rtems_test_assert(
+    memcmp(&outer_digest[0], expected_digest, sizeof(outer_digest)) == 0
+  );
+}
+
+static void test(void)
+{
+  test_md5(&key_1[0], sizeof(key_1), &data_1[0], sizeof(data_1), &digest_1[0]);
+  test_md5(&key_2[0], sizeof(key_2), &data_2[0], sizeof(data_2), &digest_2[0]);
+  test_md5(&key_3[0], sizeof(key_3), &data_3[0], sizeof(data_3), &digest_3[0]);
+  test_md5(&key_4[0], sizeof(key_4), &data_4[0], sizeof(data_4), &digest_4[0]);
+  test_md5(&key_5[0], sizeof(key_5), &data_5[0], sizeof(data_5), &digest_5[0]);
+  test_md5(&key_6[0], sizeof(key_6), &data_6[0], sizeof(data_6), &digest_6[0]);
+  test_md5(&key_7[0], sizeof(key_7), &data_7[0], sizeof(data_7), &digest_7[0]);
 }
 
 static void Init(rtems_task_argument arg)
diff --git a/testsuites/libtests/md501/md501.doc b/testsuites/libtests/md501/md501.doc
index fcb994bc34..62936e7243 100644
--- a/testsuites/libtests/md501/md501.doc
+++ b/testsuites/libtests/md501/md501.doc
@@ -11,3 +11,4 @@ directives:
 concepts:
 
   - Ensures that the MD5 digest is calucated correctly for a sample data set.
+  - Test cases are from RFC 2202.