diff --git a/ChangeLog b/ChangeLog
index 33de07ea1..6b81f6c67 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2010-09-05  Szymon Janc <szymon@janc.net.pl>
+
+	* include/grub/crypto.h (GRUB_MD_CRC32): New definition.
+
 2010-09-05  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	* grub-core/io/gzio.c (grub_gzio_open): Removed "transparent" parameter.
diff --git a/include/grub/crypto.h b/include/grub/crypto.h
index 48b52ee65..ebe78e7a1 100644
--- a/include/grub/crypto.h
+++ b/include/grub/crypto.h
@@ -243,10 +243,12 @@ extern gcry_md_spec_t _gcry_digest_spec_md5;
 extern gcry_md_spec_t _gcry_digest_spec_sha1;
 extern gcry_md_spec_t _gcry_digest_spec_sha256;
 extern gcry_md_spec_t _gcry_digest_spec_sha512;
+extern gcry_md_spec_t _gcry_digest_spec_crc32;
 #define GRUB_MD_MD5 ((const gcry_md_spec_t *) &_gcry_digest_spec_md5)
 #define GRUB_MD_SHA1 ((const gcry_md_spec_t *) &_gcry_digest_spec_sha1)
 #define GRUB_MD_SHA256 ((const gcry_md_spec_t *) &_gcry_digest_spec_sha256)
 #define GRUB_MD_SHA512 ((const gcry_md_spec_t *) &_gcry_digest_spec_sha512)
+#define GRUB_MD_CRC32 ((const gcry_md_spec_t *) &_gcry_digest_spec_crc32)
 
 /* Implement PKCS#5 PBKDF2 as per RFC 2898.  The PRF to use is HMAC variant
    of digest supplied by MD.  Inputs are the password P of length PLEN,