d93aa10bac
For consistency and safety, change the CMC and HSH functions to accept signed lengths and handle negative values as errors. Also, change the input data type to void * to not require casting in the caller.
48 lines
1.6 KiB
C
48 lines
1.6 KiB
C
/*
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chronyd/chronyc - Programs for keeping computer clocks accurate.
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**********************************************************************
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* Copyright (C) Miroslav Lichvar 2019
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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**********************************************************************
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=======================================================================
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Header file for CMAC.
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*/
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#ifndef GOT_CMAC_H
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#define GOT_CMAC_H
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/* Avoid overlapping with the hash enumeration */
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typedef enum {
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CMC_INVALID = 0,
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CMC_AES128 = 13,
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CMC_AES256 = 14,
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} CMC_Algorithm;
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typedef struct CMC_Instance_Record *CMC_Instance;
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extern int CMC_GetKeyLength(CMC_Algorithm algorithm);
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extern CMC_Instance CMC_CreateInstance(CMC_Algorithm algorithm, const unsigned char *key,
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int length);
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extern int CMC_Hash(CMC_Instance inst, const void *in, int in_len,
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unsigned char *out, int out_len);
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extern void CMC_DestroyInstance(CMC_Instance inst);
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#endif
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