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/*
* Portions Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC AND NETWORK ASSOCIATES DISCLAIMS
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE
* FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*
* Portions Copyright (C) Network Associates, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC AND NETWORK ASSOCIATES DISCLAIMS
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE
* FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: dst_internal.h,v 1.13 2024/05/17 23:56:19 jsg Exp $ */
#ifndef DST_DST_INTERNAL_H
#define DST_DST_INTERNAL_H 1
#include <isc/buffer.h>
#include <isc/region.h>
#include <isc/types.h>
#include <isc/refcount.h>
#include <isc/sha1.h>
#include <isc/sha2.h>
#include <isc/hmacsha.h>
#include <dns/time.h>
#include <dst/dst.h>
#include <openssl/err.h>
#include <openssl/objects.h>
/***
*** Types
***/
typedef struct dst_func dst_func_t;
typedef struct dst_hmacsha1_key dst_hmacsha1_key_t;
typedef struct dst_hmacsha224_key dst_hmacsha224_key_t;
typedef struct dst_hmacsha256_key dst_hmacsha256_key_t;
typedef struct dst_hmacsha384_key dst_hmacsha384_key_t;
typedef struct dst_hmacsha512_key dst_hmacsha512_key_t;
/*%
* Indicate whether a DST context will be used for signing
* or for verification
*/
typedef enum { DO_SIGN, DO_VERIFY } dst_use_t;
/*% DST Key Structure */
struct dst_key {
isc_refcount_t refs;
unsigned int key_size; /*%< size of the key in bits */
unsigned int key_proto; /*%< protocols this key is used for */
unsigned int key_alg; /*%< algorithm of the key */
uint32_t key_flags; /*%< flags of the public key */
uint16_t key_bits; /*%< hmac digest bits */
union {
dst_hmacsha1_key_t *hmacsha1;
dst_hmacsha224_key_t *hmacsha224;
dst_hmacsha256_key_t *hmacsha256;
dst_hmacsha384_key_t *hmacsha384;
dst_hmacsha512_key_t *hmacsha512;
} keydata; /*%< pointer to key in crypto pkg fmt */
dst_func_t * func; /*%< crypto package specific functions */
};
struct dst_context {
dst_use_t use;
dst_key_t *key;
isc_logcategory_t *category;
union {
isc_hmacsha1_t *hmacsha1ctx;
isc_hmacsha224_t *hmacsha224ctx;
isc_hmacsha256_t *hmacsha256ctx;
isc_hmacsha384_t *hmacsha384ctx;
isc_hmacsha512_t *hmacsha512ctx;
} ctxdata;
};
struct dst_func {
/*
* Context functions
*/
isc_result_t (*createctx)(dst_key_t *key, dst_context_t *dctx);
void (*destroyctx)(dst_context_t *dctx);
isc_result_t (*adddata)(dst_context_t *dctx, const isc_region_t *data);
/*
* Key operations
*/
isc_result_t (*sign)(dst_context_t *dctx, isc_buffer_t *sig);
isc_result_t (*verify)(dst_context_t *dctx, const isc_region_t *sig);
void (*destroy)(dst_key_t *key);
/* conversion functions */
isc_result_t (*todns)(const dst_key_t *key, isc_buffer_t *data);
isc_result_t (*fromdns)(dst_key_t *key, isc_buffer_t *data);
};
/*%
* Initializers
*/
isc_result_t dst__openssl_init(void);
isc_result_t dst__hmacsha1_init(struct dst_func **funcp);
isc_result_t dst__hmacsha224_init(struct dst_func **funcp);
isc_result_t dst__hmacsha256_init(struct dst_func **funcp);
isc_result_t dst__hmacsha384_init(struct dst_func **funcp);
isc_result_t dst__hmacsha512_init(struct dst_func **funcp);
isc_result_t dst__opensslrsa_init(struct dst_func **funcp,
unsigned char algorithm);
/*%
* Destructors
*/
void dst__openssl_destroy(void);
#endif /* DST_DST_INTERNAL_H */
/*! \file */
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