1 files changed, 128 insertions, 0 deletions
diff --git a/thirdparty/crypto/rand.h b/thirdparty/crypto/rand.h
new file mode 100644
index 00000000..fa3b5b2b
--- /dev/null
+++ b/thirdparty/crypto/rand.h
@@ -0,0 +1,128 @@
+/*
+ * Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (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
+ */
+
+/*
+ * Licensed under the Apache License 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * https://www.openssl.org/source/license.html
+ * or in the file LICENSE in the source distribution.
+ */
+
+#ifndef OSSL_CRYPTO_RAND_H
+# define OSSL_CRYPTO_RAND_H
+# pragma once
+
+# include <openssl/rand.h>
+# include "crypto/rand_pool.h"
+
+# if defined(__APPLE__) && !defined(OPENSSL_NO_APPLE_CRYPTO_RANDOM)
+#  include <Availability.h>
+#  if (defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 101200) || \
+     (defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && __IPHONE_OS_VERSION_MIN_REQUIRED >= 80000)
+#   define OPENSSL_APPLE_CRYPTO_RANDOM 1
+#   include <CommonCrypto/CommonCryptoError.h>
+#   include <CommonCrypto/CommonRandom.h>
+#  endif
+# endif
+
+/*
+ * Defines related to seed sources
+ */
+#ifndef DEVRANDOM
+/*
+ * set this to a comma-separated list of 'random' device files to try out. By
+ * default, we will try to read at least one of these files
+ */
+# define DEVRANDOM "/dev/urandom", "/dev/random", "/dev/hwrng", "/dev/srandom"
+# if defined(__linux) && !defined(__ANDROID__)
+#  ifndef DEVRANDOM_WAIT
+#   define DEVRANDOM_WAIT   "/dev/random"
+#  endif
+/*
+ * Linux kernels 4.8 and later changes how their random device works and there
+ * is no reliable way to tell that /dev/urandom has been seeded -- getentropy(2)
+ * should be used instead.
+ */
+#  ifndef DEVRANDOM_SAFE_KERNEL
+#   define DEVRANDOM_SAFE_KERNEL        4, 8
+#  endif
+/*
+ * Some operating systems do not permit select(2) on their random devices,
+ * defining this to zero will force the use of read(2) to extract one byte
+ * from /dev/random.
+ */
+#  ifndef DEVRANDM_WAIT_USE_SELECT
+#   define DEVRANDM_WAIT_USE_SELECT     1
+#  endif
+/*
+ * Define the shared memory identifier used to indicate if the operating
+ * system has properly seeded the DEVRANDOM source.
+ */
+#  ifndef OPENSSL_RAND_SEED_DEVRANDOM_SHM_ID
+#   define OPENSSL_RAND_SEED_DEVRANDOM_SHM_ID 114
+#  endif
+
+# endif
+#endif
+
+#if !defined(OPENSSL_NO_EGD) && !defined(DEVRANDOM_EGD)
+/*
+ * set this to a comma-separated list of 'egd' sockets to try out. These
+ * sockets will be tried in the order listed in case accessing the device
+ * files listed in DEVRANDOM did not return enough randomness.
+ */
+# define DEVRANDOM_EGD "/var/run/egd-pool", "/dev/egd-pool", "/etc/egd-pool", "/etc/entropy"
+#endif
+
+void ossl_rand_cleanup_int(void);
+
+/*
+ * Initialise the random pool reseeding sources.
+ *
+ * Returns 1 on success and 0 on failure.
+ */
+int ossl_rand_pool_init(void);
+
+/*
+ * Finalise the random pool reseeding sources.
+ */
+void ossl_rand_pool_cleanup(void);
+
+/*
+ * Control the random pool use of open file descriptors.
+ */
+void ossl_rand_pool_keep_random_devices_open(int keep);
+
+/*
+ * Configuration
+ */
+void ossl_random_add_conf_module(void);
+
+/*
+ * Get and cleanup random seed material.
+ */
+size_t ossl_rand_get_entropy(ossl_unused OSSL_CORE_HANDLE *handle,
+                             unsigned char **pout, int entropy,
+                             size_t min_len, size_t max_len);
+void ossl_rand_cleanup_entropy(ossl_unused OSSL_CORE_HANDLE *handle,
+                               unsigned char *buf, size_t len);
+size_t ossl_rand_get_nonce(ossl_unused OSSL_CORE_HANDLE *handle,
+                           unsigned char **pout, size_t min_len, size_t max_len,
+                           const void *salt, size_t salt_len);
+void ossl_rand_cleanup_nonce(ossl_unused OSSL_CORE_HANDLE *handle,
+                             unsigned char *buf, size_t len);
+
+/*
+ * Get seeding material from the operating system sources.
+ */
+size_t ossl_pool_acquire_entropy(RAND_POOL *pool);
+int ossl_pool_add_nonce_data(RAND_POOL *pool);
+
+#endif