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/*
 * Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#ifndef HEADER_DRBG_RAND_H
# define HEADER_DRBG_RAND_H

# include <time.h>
# include <openssl/ossl_typ.h>
# include <openssl/obj_mac.h>

/*
 * RAND_DRBG  flags
 *
 * Note: if new flags are added, the constant `rand_drbg_used_flags`
 *       in drbg_lib.c needs to be updated accordingly.
 */

/* In CTR mode, disable derivation function ctr_df */
# define RAND_DRBG_FLAG_CTR_NO_DF            0x1


# if OPENSSL_API_COMPAT < 0x10200000L
/* This #define was replaced by an internal constant and should not be used. */
#  define RAND_DRBG_USED_FLAGS  (RAND_DRBG_FLAG_CTR_NO_DF)
# endif

/*
 * Default security strength (in the sense of [NIST SP 800-90Ar1])
 *
 * NIST SP 800-90Ar1 supports the strength of the DRBG being smaller than that
 * of the cipher by collecting less entropy. The current DRBG implementation
 * does not take RAND_DRBG_STRENGTH into account and sets the strength of the
 * DRBG to that of the cipher.
 *
 * RAND_DRBG_STRENGTH is currently only used for the legacy RAND
 * implementation.
 *
 * Currently supported ciphers are: NID_aes_128_ctr, NID_aes_192_ctr and
 * NID_aes_256_ctr
 */
# define RAND_DRBG_STRENGTH             256
/* Default drbg type */
# define RAND_DRBG_TYPE                 NID_aes_256_ctr
/* Default drbg flags */
# define RAND_DRBG_FLAGS                0


# ifdef  __cplusplus
extern "C" {
# endif

/*
 * Object lifetime functions.
 */
RAND_DRBG *RAND_DRBG_new(int type, unsigned int flags, RAND_DRBG *parent);
RAND_DRBG *RAND_DRBG_secure_new(int type, unsigned int flags, RAND_DRBG *parent);
int RAND_DRBG_set(RAND_DRBG *drbg, int type, unsigned int flags);
int RAND_DRBG_set_defaults(int type, unsigned int flags);
int RAND_DRBG_instantiate(RAND_DRBG *drbg,
                          const unsigned char *pers, size_t perslen);
int RAND_DRBG_uninstantiate(RAND_DRBG *drbg);
void RAND_DRBG_free(RAND_DRBG *drbg);

/*
 * Object "use" functions.
 */
int RAND_DRBG_reseed(RAND_DRBG *drbg,
                     const unsigned char *adin, size_t adinlen,
                     int prediction_resistance);
int RAND_DRBG_generate(RAND_DRBG *drbg, unsigned char *out, size_t outlen,
                       int prediction_resistance,
                       const unsigned char *adin, size_t adinlen);
int RAND_DRBG_bytes(RAND_DRBG *drbg, unsigned char *out, size_t outlen);

int RAND_DRBG_set_reseed_interval(RAND_DRBG *drbg, unsigned int interval);
int RAND_DRBG_set_reseed_time_interval(RAND_DRBG *drbg, time_t interval);

int RAND_DRBG_set_reseed_defaults(
                                  unsigned int master_reseed_interval,
                                  unsigned int slave_reseed_interval,
                                  time_t master_reseed_time_interval,
                                  time_t slave_reseed_time_interval
                                  );

RAND_DRBG *RAND_DRBG_get0_master(void);
RAND_DRBG *RAND_DRBG_get0_public(void);
RAND_DRBG *RAND_DRBG_get0_private(void);

/*
 * EXDATA
 */
# define RAND_DRBG_get_ex_new_index(l, p, newf, dupf, freef) \
    CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_DRBG, l, p, newf, dupf, freef)
int RAND_DRBG_set_ex_data(RAND_DRBG *drbg, int idx, void *arg);
void *RAND_DRBG_get_ex_data(const RAND_DRBG *drbg, int idx);

/*
 * Callback function typedefs
 */
typedef size_t (*RAND_DRBG_get_entropy_fn)(RAND_DRBG *drbg,
                                           unsigned char **pout,
                                           int entropy, size_t min_len,
                                           size_t max_len,
                                           int prediction_resistance);
typedef void (*RAND_DRBG_cleanup_entropy_fn)(RAND_DRBG *ctx,
                                             unsigned char *out, size_t outlen);
typedef size_t (*RAND_DRBG_get_nonce_fn)(RAND_DRBG *drbg, unsigned char **pout,
                                         int entropy, size_t min_len,
                                         size_t max_len);
typedef void (*RAND_DRBG_cleanup_nonce_fn)(RAND_DRBG *drbg,
                                           unsigned char *out, size_t outlen);

int RAND_DRBG_set_callbacks(RAND_DRBG *drbg,
                            RAND_DRBG_get_entropy_fn get_entropy,
                            RAND_DRBG_cleanup_entropy_fn cleanup_entropy,
                            RAND_DRBG_get_nonce_fn get_nonce,
                            RAND_DRBG_cleanup_nonce_fn cleanup_nonce);


# ifdef  __cplusplus
}
# endif

#endif

Filemanager

Name Type Size Permission Actions
archs Folder 0755
aes.h File 3.27 KB 0644
asn1.h File 32.84 KB 0644
asn1_mac.h File 395 B 0644
asn1err.h File 14.26 KB 0644
asn1t.h File 32.17 KB 0644
async.h File 2.34 KB 0644
asyncerr.h File 1.29 KB 0644
bio.h File 34.09 KB 0644
bioerr.h File 6.25 KB 0644
blowfish.h File 1.8 KB 0644
bn.h File 21.62 KB 0644
bn_conf.h File 100 B 0644
bn_conf_asm.h File 3 KB 0644
bn_conf_no-asm.h File 3.17 KB 0644
bnerr.h File 4.79 KB 0644
buffer.h File 1.56 KB 0644
buffererr.h File 820 B 0644
camellia.h File 3.1 KB 0644
cast.h File 1.63 KB 0644
cmac.h File 1.04 KB 0644
cms.h File 16 KB 0644
cmserr.h File 10.9 KB 0644
comp.h File 1.3 KB 0644
comperr.h File 1.18 KB 0644
conf.h File 5.47 KB 0644
conf_api.h File 1.27 KB 0644
conferr.h File 3.35 KB 0644
crypto.h File 16.83 KB 0644
cryptoerr.h File 2.21 KB 0644
ct.h File 15.5 KB 0644
cterr.h File 3.39 KB 0644
des.h File 7.45 KB 0644
dh.h File 13.09 KB 0644
dherr.h File 3.88 KB 0644
dsa.h File 9.82 KB 0644
dsaerr.h File 2.9 KB 0644
dso_conf.h File 102 B 0644
dso_conf_asm.h File 3.02 KB 0644
dso_conf_no-asm.h File 3.2 KB 0644
dtls1.h File 1.54 KB 0644
e_os2.h File 8.68 KB 0644
ebcdic.h File 924 B 0644
ec.h File 62.11 KB 0644
ecdh.h File 358 B 0644
ecdsa.h File 358 B 0644
ecerr.h File 15.39 KB 0644
engine.h File 33.85 KB 0644
engineerr.h File 5.32 KB 0644
err.h File 11 KB 0644
evp.h File 75.03 KB 0644
evperr.h File 11.16 KB 0644
hmac.h File 1.55 KB 0644
idea.h File 2.05 KB 0644
kdf.h File 4.22 KB 0644
kdferr.h File 2.07 KB 0644
lhash.h File 9.05 KB 0644
md2.h File 1.03 KB 0644
md4.h File 1.29 KB 0644
md5.h File 1.29 KB 0644
mdc2.h File 1.03 KB 0644
modes.h File 10.23 KB 0644
obj_mac.h File 212.42 KB 0644
objects.h File 6.48 KB 0644
objectserr.h File 1.29 KB 0644
ocsp.h File 14.95 KB 0644
ocsperr.h File 3.28 KB 0644
opensslconf.h File 590 B 0644
opensslconf_asm.h File 6.88 KB 0644
opensslconf_no-asm.h File 2.92 KB 0644
opensslv.h File 4.01 KB 0644
ossl_typ.h File 6.12 KB 0644
pem.h File 15.11 KB 0644
pem2.h File 415 B 0644
pemerr.h File 4.98 KB 0644
pkcs12.h File 9.64 KB 0644
pkcs12err.h File 3.66 KB 0644
pkcs7.h File 11.32 KB 0644
pkcs7err.h File 4.99 KB 0644
rand.h File 2.16 KB 0644
rand_drbg.h File 4.65 KB 0644
randerr.h File 4.52 KB 0644
rc2.h File 1.5 KB 0644
rc4.h File 825 B 0644
rc5.h File 1.94 KB 0644
ripemd.h File 1.21 KB 0644
rsa.h File 21.68 KB 0644
rsaerr.h File 8.86 KB 0644
safestack.h File 7.95 KB 0644
seed.h File 3.4 KB 0644
sha.h File 3.74 KB 0644
srp.h File 3.74 KB 0644
srtp.h File 1.29 KB 0644
ssl.h File 108.65 KB 0644
ssl2.h File 542 B 0644
ssl3.h File 14.23 KB 0644
sslerr.h File 45.58 KB 0644
stack.h File 3.02 KB 0644
store.h File 10.94 KB 0644
storeerr.h File 4.3 KB 0644
symhacks.h File 1.28 KB 0644
tls1.h File 70.79 KB 0644
ts.h File 21.9 KB 0644
tserr.h File 6.59 KB 0644
txt_db.h File 1.63 KB 0644
ui.h File 15.68 KB 0644
uierr.h File 2.67 KB 0644
whrlpool.h File 1.34 KB 0644
x509.h File 42.11 KB 0644
x509_vfy.h File 31.42 KB 0644
x509err.h File 6.62 KB 0644
x509v3.h File 32.59 KB 0644
x509v3err.h File 8.57 KB 0644