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cmac.h
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1 /* crypto/cmac/cmac.h */
2 /* Written by Dr Stephen N Henson ([email protected]) for the OpenSSL
3  * project.
4  */
5 /* ====================================================================
6  * Copyright (c) 2010 The OpenSSL Project. All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
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13  * notice, this list of conditions and the following disclaimer.
14  *
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16  * notice, this list of conditions and the following disclaimer in
17  * the documentation and/or other materials provided with the
18  * distribution.
19  *
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21  * software must display the following acknowledgment:
22  * "This product includes software developed by the OpenSSL Project
23  * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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35  * acknowledgment:
36  * "This product includes software developed by the OpenSSL Project
37  * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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53 
54 
55 #ifndef HEADER_CMAC_H
56 #define HEADER_CMAC_H
57 
58 #ifdef __cplusplus
59 extern "C" {
60 #endif
61 
62 #include <openssl/evp.h>
63 
64 /* Opaque */
65 typedef struct CMAC_CTX_st CMAC_CTX;
66 
67 CMAC_CTX *CMAC_CTX_new(void);
68 void CMAC_CTX_cleanup(CMAC_CTX *ctx);
69 void CMAC_CTX_free(CMAC_CTX *ctx);
71 int CMAC_CTX_copy(CMAC_CTX *out, const CMAC_CTX *in);
72 
73 int CMAC_Init(CMAC_CTX *ctx, const void *key, size_t keylen,
74  const EVP_CIPHER *cipher, ENGINE *impl);
75 int CMAC_Update(CMAC_CTX *ctx, const void *data, size_t dlen);
76 int CMAC_Final(CMAC_CTX *ctx, unsigned char *out, size_t *poutlen);
77 int CMAC_resume(CMAC_CTX *ctx);
78 
79 #ifdef __cplusplus
80 }
81 #endif
82 #endif