diff --git a/crypto/sha1.c b/crypto/sha1.c
index 4cca56bea0..b19d96c7e6 100644
--- a/crypto/sha1.c
+++ b/crypto/sha1.c
@@ -1,20 +1,11 @@
 /****************************************************************************
  * crypto/sha1.c
  *
- * $OpenBSD: sha1.c,v 1.11 2014/12/28 10:04:35 tedu Exp $
+ * SPDX-License-Identifier: NuttX-PublicDomain
  *
- * SHA-1 in C
  * By Steve Reid <steve@edmweb.com>
  * 100% Public Domain
  *
- * Test Vectors (from FIPS PUB 180-1)
- * "abc"
- *   A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D
- * "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"
- *   84983E44 1C3BD26E BAAE4AA1 F95129E5 E54670F1
- * A million repetitions of "a"
- *   34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F
-
  ****************************************************************************/
 
 /****************************************************************************