1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Common values for ARC4 Cipher Algorithm 4 */ 5 6 #ifndef _CIFS_MD4_H 7 #define _CIFS_MD4_H 8 9 #include <linux/types.h> 10 11 #define MD4_DIGEST_SIZE 16 12 #define MD4_HMAC_BLOCK_SIZE 64 13 #define MD4_BLOCK_WORDS 16 14 #define MD4_HASH_WORDS 4 15 16 struct md4_ctx { 17 u32 hash[MD4_HASH_WORDS]; 18 u32 block[MD4_BLOCK_WORDS]; 19 u64 byte_count; 20 }; 21 22 23 int cifs_md4_init(struct md4_ctx *mctx); 24 int cifs_md4_update(struct md4_ctx *mctx, const u8 *data, unsigned int len); 25 int cifs_md4_final(struct md4_ctx *mctx, u8 *out); 26 27 #endif /* _CIFS_MD4_H */ 28