diff options
Diffstat (limited to 'deps/openssl/openssl/include/openssl/rand_drbg.h')
| -rw-r--r-- | deps/openssl/openssl/include/openssl/rand_drbg.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/deps/openssl/openssl/include/openssl/rand_drbg.h b/deps/openssl/openssl/include/openssl/rand_drbg.h new file mode 100644 index 0000000000..45b731b73c --- /dev/null +++ b/deps/openssl/openssl/include/openssl/rand_drbg.h @@ -0,0 +1,130 @@ +/* + * 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 |