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21dcbebc | 1 | /* |
33388b44 | 2 | * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved. |
d02b48c6 | 3 | * |
48f4ad77 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
21dcbebc RS |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
d02b48c6 RE |
8 | */ |
9 | ||
ae4186b0 DMSP |
10 | #ifndef OPENSSL_RAND_H |
11 | # define OPENSSL_RAND_H | |
d86167ec DMSP |
12 | # pragma once |
13 | ||
14 | # include <openssl/macros.h> | |
936c2b9e | 15 | # ifndef OPENSSL_NO_DEPRECATED_3_0 |
d86167ec DMSP |
16 | # define HEADER_RAND_H |
17 | # endif | |
d02b48c6 | 18 | |
0f113f3e | 19 | # include <stdlib.h> |
50cd4768 | 20 | # include <openssl/types.h> |
0f113f3e | 21 | # include <openssl/e_os2.h> |
52df25cf | 22 | # include <openssl/randerr.h> |
7d615e21 | 23 | # include <openssl/evp.h> |
fb96d9d9 | 24 | |
d02b48c6 RE |
25 | #ifdef __cplusplus |
26 | extern "C" { | |
27 | #endif | |
28 | ||
7d615e21 P |
29 | /* |
30 | * Default security strength (in the sense of [NIST SP 800-90Ar1]) | |
31 | * | |
32 | * NIST SP 800-90Ar1 supports the strength of the DRBG being smaller than that | |
33 | * of the cipher by collecting less entropy. The current DRBG implementation | |
34 | * does not take RAND_DRBG_STRENGTH into account and sets the strength of the | |
35 | * DRBG to that of the cipher. | |
36 | */ | |
37 | # define RAND_DRBG_STRENGTH 256 | |
38 | ||
0f113f3e MC |
39 | struct rand_meth_st { |
40 | int (*seed) (const void *buf, int num); | |
41 | int (*bytes) (unsigned char *buf, int num); | |
42 | void (*cleanup) (void); | |
f367ac2b | 43 | int (*add) (const void *buf, int num, double randomness); |
0f113f3e MC |
44 | int (*pseudorand) (unsigned char *buf, int num); |
45 | int (*status) (void); | |
46 | }; | |
47 | ||
cb78486d GT |
48 | int RAND_set_rand_method(const RAND_METHOD *meth); |
49 | const RAND_METHOD *RAND_get_rand_method(void); | |
0f113f3e | 50 | # ifndef OPENSSL_NO_ENGINE |
cb78486d | 51 | int RAND_set_rand_engine(ENGINE *engine); |
0f113f3e | 52 | # endif |
75e2c877 | 53 | |
b0700d2c | 54 | RAND_METHOD *RAND_OpenSSL(void); |
75e2c877 | 55 | |
00db8c60 | 56 | # ifndef OPENSSL_NO_DEPRECATED_1_1_0 |
12fb8c3d RS |
57 | # define RAND_cleanup() while(0) continue |
58 | # endif | |
0f113f3e | 59 | int RAND_bytes(unsigned char *buf, int num); |
ddc6a5c8 | 60 | int RAND_priv_bytes(unsigned char *buf, int num); |
993ebac9 | 61 | |
b4250010 DMSP |
62 | /* Equivalent of RAND_priv_bytes() but additionally taking an OSSL_LIB_CTX */ |
63 | int RAND_priv_bytes_ex(OSSL_LIB_CTX *ctx, unsigned char *buf, int num); | |
993ebac9 | 64 | |
b4250010 DMSP |
65 | /* Equivalent of RAND_bytes() but additionally taking an OSSL_LIB_CTX */ |
66 | int RAND_bytes_ex(OSSL_LIB_CTX *ctx, unsigned char *buf, int num); | |
993ebac9 | 67 | |
98186eb4 | 68 | DEPRECATEDIN_1_1_0(int RAND_pseudo_bytes(unsigned char *buf, int num)) |
75e2c877 | 69 | |
b4250010 DMSP |
70 | EVP_RAND_CTX *RAND_get0_primary(OSSL_LIB_CTX *ctx); |
71 | EVP_RAND_CTX *RAND_get0_public(OSSL_LIB_CTX *ctx); | |
72 | EVP_RAND_CTX *RAND_get0_private(OSSL_LIB_CTX *ctx); | |
7d615e21 | 73 | |
0f113f3e | 74 | void RAND_seed(const void *buf, int num); |
c7504aeb | 75 | void RAND_keep_random_devices_open(int keep); |
75e2c877 | 76 | |
12fb8c3d | 77 | # if defined(__ANDROID__) && defined(__NDK_FPABI__) |
dd6b2706 | 78 | __NDK_FPABI__ /* __attribute__((pcs("aapcs"))) on ARM */ |
12fb8c3d | 79 | # endif |
f367ac2b | 80 | void RAND_add(const void *buf, int num, double randomness); |
0f113f3e MC |
81 | int RAND_load_file(const char *file, long max_bytes); |
82 | int RAND_write_file(const char *file); | |
83 | const char *RAND_file_name(char *file, size_t num); | |
4ec2d4d2 | 84 | int RAND_status(void); |
75e2c877 | 85 | |
0423f812 | 86 | # ifndef OPENSSL_NO_EGD |
6343829a | 87 | int RAND_query_egd_bytes(const char *path, unsigned char *buf, int bytes); |
4ec2d4d2 | 88 | int RAND_egd(const char *path); |
0f113f3e | 89 | int RAND_egd_bytes(const char *path, int bytes); |
0423f812 | 90 | # endif |
75e2c877 | 91 | |
c0722725 | 92 | int RAND_poll(void); |
82271cee | 93 | |
12fb8c3d | 94 | # if defined(_WIN32) && (defined(BASETYPES) || defined(_WINDEF_H)) |
f1f5ee17 | 95 | /* application has to include <windows.h> in order to use these */ |
73241290 JY |
96 | DEPRECATEDIN_1_1_0(void RAND_screen(void)) |
97 | DEPRECATEDIN_1_1_0(int RAND_event(UINT, WPARAM, LPARAM)) | |
12fb8c3d | 98 | # endif |
73241290 | 99 | |
12fb8c3d | 100 | #ifdef __cplusplus |
65e81670 | 101 | } |
12fb8c3d RS |
102 | #endif |
103 | ||
d02b48c6 | 104 | #endif |