56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
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// Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) All rights reserved.
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// SPDX-License-Identifier: Apache-2.0
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#ifndef OPENSSL_HEADER_MD4_H
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#define OPENSSL_HEADER_MD4_H
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#include <openssl/base.h>
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#if defined(__cplusplus)
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extern "C" {
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#endif
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// MD4.
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// MD4_CBLOCK is the block size of MD4.
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#define MD4_CBLOCK 64
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// MD4_DIGEST_LENGTH is the length of an MD4 digest.
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#define MD4_DIGEST_LENGTH 16
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// MD4_Init initialises |md4| and returns one.
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OPENSSL_EXPORT int MD4_Init(MD4_CTX *md4);
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// MD4_Update adds |len| bytes from |data| to |md4| and returns one.
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OPENSSL_EXPORT int MD4_Update(MD4_CTX *md4, const void *data, size_t len);
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// MD4_Final adds the final padding to |md4| and writes the resulting digest to
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// |out|, which must have at least |MD4_DIGEST_LENGTH| bytes of space. It
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// returns one.
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OPENSSL_EXPORT int MD4_Final(uint8_t out[MD4_DIGEST_LENGTH], MD4_CTX *md4);
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// MD4 writes the digest of |len| bytes from |data| to |out| and returns |out|.
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// There must be at least |MD4_DIGEST_LENGTH| bytes of space in |out|.
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OPENSSL_EXPORT uint8_t *MD4(const uint8_t *data, size_t len,
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uint8_t out[MD4_DIGEST_LENGTH]);
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// MD4_Transform is a low-level function that performs a single, MD4 block
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// transformation using the state from |md4| and 64 bytes from |block|.
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OPENSSL_EXPORT void MD4_Transform(MD4_CTX *md4,
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const uint8_t block[MD4_CBLOCK]);
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struct md4_state_st {
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uint32_t h[4];
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uint32_t Nl, Nh;
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uint8_t data[MD4_CBLOCK];
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unsigned num;
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};
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#if defined(__cplusplus)
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} // extern C
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#endif
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#endif // OPENSSL_HEADER_MD4_H
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