41 lines
1.5 KiB
C
41 lines
1.5 KiB
C
/****************************************************************************
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* include/crypto/idgen.h
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* $OpenBSD: idgen.h,v 1.3 2013/06/05 05:45:54 djm Exp $
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*
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* Copyright (c) 2008 Damien Miller <djm@mindrot.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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****************************************************************************/
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#ifndef __INCLUDE_CRYPTO_IDGEN_H_
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#define __INCLUDE_CRYPTO_IDGEN_H_
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#define IDGEN32_ROUNDS 31
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#define IDGEN32_KEYLEN 32
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#define IDGEN32_REKEY_LIMIT 0x60000000
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#define IDGEN32_REKEY_TIME 600
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struct idgen32_ctx
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{
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u_int32_t id32_counter;
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u_int32_t id32_offset;
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u_int32_t id32_hibit;
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u_int8_t id32_key[IDGEN32_KEYLEN];
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time_t id32_rekey_time;
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};
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void idgen32_init(FAR struct idgen32_ctx *);
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u_int32_t idgen32(FAR struct idgen32_ctx *);
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#endif /* __INCLUDE_CRYPTO_IDGEN_H_ */ |