), EVP_PKEY_get1_DSA(), EVP_PKEY_get1_DH(), EVP_PKEY_get1_EC_KEY(), EVP_PKEY_get0_hmac(), EVP_PKEY_get0_poly1305(), EVP_PKEY_get0_siphash(), EVP_PKEY_get0_RSA(), EVP_PKEY_get0_DSA(), EVP_PKEY_get0_DH() or EVP_PKEY_get0_EC_KEY() will be a cached copy of the provider&#39;s key. Subsequent updates to the provider&#39;s key will not be reflected back in the cached copy, and updates made by an application to the returned key will not be reflected back in the provider&#39;s key. Subsequent calls to EVP_PKEY_get1_