NET_HMAC.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * NAME:        NET_HMAC.h
 *
 * COMMENTS:
 *                      
 *
 */

#ifndef __NET_HMAC_H__
#define __NET_HMAC_H__

#include "NET_API.h"

#include <UT/UT_WorkBuffer.h>
#include <UT/UT_StringHolder.h>

class UT_StringView;
class UT_StringHolder;
class UT_WorkBuffer;
class NET_DigestAlgorithm;

NET_API bool NEThmac(
        const NET_DigestAlgorithm& alg,
        const UT_StringView& input,
        const UT_StringView& key,
        UT_WorkBuffer& output,
        bool use_base64 = true);

NET_API bool NEThmac(
        const NET_DigestAlgorithm& alg,
        const UT_StringView& input,
        const UT_StringView& key,
        UT_StringHolder& output,
        bool use_base64 = true);

NET_API bool NETpbkdf2_hmac(
        UT_WorkBuffer& output,
        const NET_DigestAlgorithm& alg,
        int key_len,
        const UT_StringView& input,
        const UT_StringView& salt,
        int iterations);

NET_API bool NETpbkdf2_hmac(
        UT_StringHolder& output,
        const NET_DigestAlgorithm& alg,
        int key_len,
        const UT_StringView& input,
        const UT_StringView& salt,
        int iterations);

NET_API bool NETsecureRandom(UT_WorkBuffer& wbuf, int length);
NET_API bool NETsecureRandom(UT_StringHolder& output, int length);

NET_API UT_StringHolder NETsecureHash(
        const UT_StringHolder& message,
        const UT_StringHolder& salt,
        int iterations,
        UT_StringHolder* salted_message = nullptr);

/// Split a secure hash into its components so that it can be checked
/// against the raw message.
NET_API bool NETsplitSecureHash(
        const UT_StringHolder& password,
        UT_StringHolder& alg_string,
        int& iterations,
        UT_StringHolder& salt,
        UT_StringHolder& hashed_password);

#endif // __NET_HMAC_H__