RAND_cleanup - erase the PRNG state
The following function has been deprecated since OpenSSL 1.1.0, and can be hidden entirely by defining OPENSSL_API_COMPAT with a suitable version value, see openssl_user_macros(7):
Prior to OpenSSL 1.1.0, RAND_cleanup() released all resources used by the PRNG. As of version 1.1.0, it does nothing and should not be called, since no explicit initialisation or de-initialisation is necessary. See OPENSSL_init_crypto(3).
RAND_cleanup() returns no value.
RAND_cleanup() was deprecated in OpenSSL 1.1.0; do not use it. See OPENSSL_init_crypto(3)
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