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-rw-r--r--include/crypto/md5.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/include/crypto/md5.h b/include/crypto/md5.h
new file mode 100644
index 000000000..cf9e9dec3
--- /dev/null
+++ b/include/crypto/md5.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _CRYPTO_MD5_H
+#define _CRYPTO_MD5_H
+
+#include <linux/types.h>
+
+#define MD5_DIGEST_SIZE 16
+#define MD5_HMAC_BLOCK_SIZE 64
+#define MD5_BLOCK_WORDS 16
+#define MD5_HASH_WORDS 4
+
+#define MD5_H0 0x67452301UL
+#define MD5_H1 0xefcdab89UL
+#define MD5_H2 0x98badcfeUL
+#define MD5_H3 0x10325476UL
+
+extern const u8 md5_zero_message_hash[MD5_DIGEST_SIZE];
+
+struct md5_state {
+ u32 hash[MD5_HASH_WORDS];
+ u32 block[MD5_BLOCK_WORDS];
+ u64 byte_count;
+};
+
+#endif