1 files changed, 142 insertions, 0 deletions
diff --git a/include/iprt/md4.h b/include/iprt/md4.h
new file mode 100644
index 00000000..37cd1daa
--- /dev/null
+++ b/include/iprt/md4.h
@@ -0,0 +1,142 @@
+/** @file
+ * IPRT - Message-Digest Algorithm 4.
+ */
+
+/*
+ * Copyright (C) 2006-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+#ifndef IPRT_INCLUDED_md4_h
+#define IPRT_INCLUDED_md4_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+#include <iprt/types.h>
+
+RT_C_DECLS_BEGIN
+
+/** @defgroup grp_rt_md4    RTMd4 - Message-Digest algorithm 4
+ * @ingroup grp_rt
+ *
+ * @note This is just for backwards compatibility and completeness.
+ *
+ * @{
+ */
+
+/** Size of a MD4 hash. */
+#define RTMD4_HASH_SIZE     16
+/** The length of a MD4 digest string. The terminator is not included. */
+#define RTMD4_DIGEST_LEN    32
+
+/**
+ * MD4 hash algorithm context.
+ */
+typedef union RTMD4CONTEXT
+{
+    uint64_t            u64BetterAlignment;
+    uint8_t             abPadding[22*4 + 64 + 8];
+#ifdef RT_MD4_PRIVATE_CONTEXT
+    MD4_CTX             Private;
+#endif
+#ifdef RT_MD4_PRIVATE_ALT_CONTEXT
+    RTMD4ALTPRIVATECTX  AltPrivate;
+#endif
+} RTMD4CONTEXT;
+
+/** Pointer to MD4 hash algorithm context. */
+typedef RTMD4CONTEXT *PRTMD4CONTEXT;
+
+
+/**
+ * Compute the MD4 hash of the data.
+ *
+ * @param   pvBuf       Pointer to data.
+ * @param   cbBuf       Length of data (in bytes).
+ * @param   pabDigest   Where to store the hash.
+ *                      (What's passed is a pointer to the caller's buffer.)
+ */
+RTDECL(void) RTMd4(const void *pvBuf, size_t cbBuf, uint8_t pabDigest[RTMD4_HASH_SIZE]);
+
+/**
+ * Initialize MD4 context.
+ *
+ * @param   pCtx        Pointer to the MD4 context to initialize.
+ */
+RTDECL(void) RTMd4Init(PRTMD4CONTEXT pCtx);
+
+/**
+ * Feed data into the MD4 computation.
+ *
+ * @param   pCtx        Pointer to the MD4 context.
+ * @param   pvBuf       Pointer to data.
+ * @param   cbBuf       Length of data (in bytes).
+ */
+RTDECL(void) RTMd4Update(PRTMD4CONTEXT pCtx, const void *pvBuf, size_t cbBuf);
+
+/**
+ * Compute the MD4 hash of the data.
+ *
+ * @param   pCtx        Pointer to the MD4 context.
+ * @param   pabDigest   Where to store the hash. (What's passed is a pointer to
+ *                      the caller's buffer.)
+ */
+RTDECL(void) RTMd4Final(PRTMD4CONTEXT pCtx, uint8_t pabDigest[RTMD4_HASH_SIZE]);
+
+/**
+ * Converts a MD4 hash to a digest string.
+ *
+ * @returns IPRT status code.
+ *
+ * @param   pabDigest   The binary digest returned by RTMd4Final or RTMd4.
+ * @param   pszDigest   Where to return the stringified digest.
+ * @param   cchDigest   The size of the output buffer. Should be at least
+ *                      RTMD4_STRING_LEN + 1 bytes.
+ */
+RTDECL(int) RTMd4ToString(uint8_t const pabDigest[RTMD4_HASH_SIZE], char *pszDigest, size_t cchDigest);
+
+/**
+ * Converts a MD4 hash to a digest string.
+ *
+ * @returns IPRT status code.
+ *
+ * @param   pszDigest   The stringified digest. Leading and trailing spaces are
+ *                      ignored.
+ * @param   pabDigest   Where to store the hash. (What is passed is a pointer to
+ *                      the caller's buffer.)
+ */
+RTDECL(int) RTMd4FromString(char const *pszDigest, uint8_t pabDigest[RTMD4_HASH_SIZE]);
+
+/** @} */
+
+RT_C_DECLS_END
+
+#endif /* !IPRT_INCLUDED_md4_h */
+