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/*
* This program is released under the Common Public License V1.0
*
* You should have received a copy of Common Public License V1.0 along with
* with this program.
*
* DRBG conforming to NIST SP800-90A
*
* Author(s): Patrick Steuer <patrick.steuer@de.ibm.com>
*
* Copyright IBM Corp. 2015
*/
#ifndef S390_DRBG_SHA512_H
#define S390_DRBG_SHA512_H
#include <stdint.h>
#include "ica_api.h"
#define DRBG_SHA512_SEED_LEN (888 / 8)
/*
* SHA-512 DRBG mechanism working state type (see POP)
*/
struct drbg_sha512_ws{
uint32_t rsvd0; /* padding */
uint32_t reseed_ctr; /* reseed counter */
uint64_t stream_bytes; /* no. of generated bytes */
unsigned char rsvd1; /* padding */
unsigned char v[DRBG_SHA512_SEED_LEN]; /* V */
unsigned char rsvd2; /* padding */
unsigned char c[DRBG_SHA512_SEED_LEN]; /* C */
};
/*
* SHA-512 DRBG mechanism functions
*/
int drbg_sha512_instantiate(void **ws,
int sec_strength,
const unsigned char *pers,
size_t pers_len,
const unsigned char *entropy,
size_t entropy_len,
const unsigned char *nonce,
size_t nonce_len);
int drbg_sha512_instantiate_ppno(void **ws,
int sec_strength,
const unsigned char *pers,
size_t pers_len,
const unsigned char *entropy,
size_t entropy_len,
const unsigned char *nonce,
size_t nonce_len);
int drbg_sha512_reseed(void *ws,
const unsigned char *add,
size_t add_len,
const unsigned char *entropy,
size_t entropy_len);
int drbg_sha512_reseed_ppno(void *ws,
const unsigned char *add,
size_t add_len,
const unsigned char *entropy,
size_t entropy_len);
int drbg_sha512_generate(void *ws,
const unsigned char *add,
size_t add_len,
unsigned char *prnd,
size_t prnd_len);
int drbg_sha512_generate_ppno(void *ws,
const unsigned char *add,
size_t add_len,
unsigned char *prnd,
size_t prnd_len);
int drbg_sha512_uninstantiate(void **ws,
bool test_mode);
int drbg_sha512_health_test(void *func,
int sec,
bool pr);
#endif
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