[crypto] Add SHA-384 algorithm

SHA-384 is almost identical to SHA-512, with differing initial hash
values and a truncated output length.

This implementation has been verified using the NIST SHA-384 test
vectors.

Signed-off-by: Michael Brown <mcb30@ipxe.org>

1 files changed, 36 insertions, 3 deletions

diff --git a/src/tests/sha512_test.c b/src/tests/sha512_test.c
index f97e96e9..80dc2f4e 100644
--- a/src/tests/sha512_test.c
+++ b/src/tests/sha512_test.c
@@ -25,11 +25,12 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
 
 /** @file
  *
- * SHA-512 tests
+ * SHA-512 family tests
  *
  * NIST test vectors are taken from
  *
  *  http://csrc.nist.gov/groups/ST/toolkit/documents/Examples/SHA512.pdf
+ *  http://csrc.nist.gov/groups/ST/toolkit/documents/Examples/SHA384.pdf
  *
  */
 
@@ -73,8 +74,35 @@ DIGEST_TEST ( sha512_nist_abc_stu, &sha512_algorithm, DIGEST_NIST_ABC_STU,
 		       0x26, 0x54, 0x5e, 0x96, 0xe5, 0x5b, 0x87, 0x4b, 0xe9,
 		       0x09 ) );
 
+/* Empty test vector (digest obtained from "sha384sum /dev/null") */
+DIGEST_TEST ( sha384_empty, &sha384_algorithm, DIGEST_EMPTY,
+	      DIGEST ( 0x38, 0xb0, 0x60, 0xa7, 0x51, 0xac, 0x96, 0x38, 0x4c,
+		       0xd9, 0x32, 0x7e, 0xb1, 0xb1, 0xe3, 0x6a, 0x21, 0xfd,
+		       0xb7, 0x11, 0x14, 0xbe, 0x07, 0x43, 0x4c, 0x0c, 0xc7,
+		       0xbf, 0x63, 0xf6, 0xe1, 0xda, 0x27, 0x4e, 0xde, 0xbf,
+		       0xe7, 0x6f, 0x65, 0xfb, 0xd5, 0x1a, 0xd2, 0xf1, 0x48,
+		       0x98, 0xb9, 0x5b ) );
+
+/* NIST test vector "abc" */
+DIGEST_TEST ( sha384_nist_abc, &sha384_algorithm, DIGEST_NIST_ABC,
+	      DIGEST ( 0xcb, 0x00, 0x75, 0x3f, 0x45, 0xa3, 0x5e, 0x8b, 0xb5,
+		       0xa0, 0x3d, 0x69, 0x9a, 0xc6, 0x50, 0x07, 0x27, 0x2c,
+		       0x32, 0xab, 0x0e, 0xde, 0xd1, 0x63, 0x1a, 0x8b, 0x60,
+		       0x5a, 0x43, 0xff, 0x5b, 0xed, 0x80, 0x86, 0x07, 0x2b,
+		       0xa1, 0xe7, 0xcc, 0x23, 0x58, 0xba, 0xec, 0xa1, 0x34,
+		       0xc8, 0x25, 0xa7 ) );
+
+/* NIST test vector "abc...stu" */
+DIGEST_TEST ( sha384_nist_abc_stu, &sha384_algorithm, DIGEST_NIST_ABC_STU,
+	      DIGEST ( 0x09, 0x33, 0x0c, 0x33, 0xf7, 0x11, 0x47, 0xe8, 0x3d,
+		       0x19, 0x2f, 0xc7, 0x82, 0xcd, 0x1b, 0x47, 0x53, 0x11,
+		       0x1b, 0x17, 0x3b, 0x3b, 0x05, 0xd2, 0x2f, 0xa0, 0x80,
+		       0x86, 0xe3, 0xb0, 0xf7, 0x12, 0xfc, 0xc7, 0xc7, 0x1a,
+		       0x55, 0x7e, 0x2d, 0xb9, 0x66, 0xc3, 0xe9, 0xfa, 0x91,
+		       0x74, 0x60, 0x39 ) );
+
 /**
- * Perform SHA-512 self-test
+ * Perform SHA-512 family self-test
  *
  */
 static void sha512_test_exec ( void ) {
@@ -83,13 +111,18 @@ static void sha512_test_exec ( void ) {
 	digest_ok ( &sha512_empty );
 	digest_ok ( &sha512_nist_abc );
 	digest_ok ( &sha512_nist_abc_stu );
+	digest_ok ( &sha384_empty );
+	digest_ok ( &sha384_nist_abc );
+	digest_ok ( &sha384_nist_abc_stu );
 
 	/* Speed tests */
 	DBG ( "SHA512 required %ld cycles per byte\n",
 	      digest_cost ( &sha512_algorithm ) );
+	DBG ( "SHA384 required %ld cycles per byte\n",
+	      digest_cost ( &sha384_algorithm ) );
 }
 
-/** SHA-512 self-test */
+/** SHA-512 family self-test */
 struct self_test sha512_test __self_test = {
 	.name = "sha512",
 	.exec = sha512_test_exec,