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- /*
- * Copyright (C) 2016 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
- #if !defined(_CP_PRNG_H)
- #define _CP_PRNG_H
- /*
- // Pseudo-random generation context
- */
- #define MAX_XKEY_SIZE 512
- #define DEFAULT_XKEY_SIZE 512 /* must be >=160 || <=512 */
- struct _cpPRNG {
- IppCtxId idCtx; /* PRNG identifier */
- cpSize seedBits; /* secret seed-key bitsize */
- BNU_CHUNK_T Q[BITS_BNU_CHUNK(160)]; /* modulus */
- BNU_CHUNK_T T[BITS_BNU_CHUNK(160)]; /* parameter of SHA_G() funct */
- BNU_CHUNK_T xAug[BITS_BNU_CHUNK(MAX_XKEY_SIZE)]; /* optional entropy augment */
- BNU_CHUNK_T xKey[BITS_BNU_CHUNK(MAX_XKEY_SIZE)]; /* secret seed-key */
- };
- /* alignment */
- #define PRNG_ALIGNMENT ((int)(sizeof(void*)))
- #define RAND_ID(ctx) ((ctx)->idCtx)
- #define RAND_SEEDBITS(ctx) ((ctx)->seedBits)
- #define RAND_Q(ctx) ((ctx)->Q)
- #define RAND_T(ctx) ((ctx)->T)
- #define RAND_XAUGMENT(ctx) ((ctx)->xAug)
- #define RAND_XKEY(ctx) ((ctx)->xKey)
- #define RAND_VALID_ID(ctx) (RAND_ID((ctx))==idCtxPRNG)
- int cpPRNGen(Ipp32u* pBuffer, cpSize bitLen, IppsPRNGState* pCtx);
- #endif /* _CP_PRNG_H */
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