openssl_x509_check_private_key Checks if a private key corresponds to a certificate &reftitle.description; boolopenssl_x509_check_private_key OpenSSLCertificatestringcertificate #[\SensitiveParameter]OpenSSLAsymmetricKeyOpenSSLCertificatearraystringprivate_key Checks whether the given private_key is the private key that corresponds to certificate. The function does not check if private_key is indeed a private key or not. It merely compares the public materials (e.g. exponent and modulus of an RSA key) and/or key parameters (e.g. EC params of an EC key) of a key pair. This means, for example, that a public key could be given for private_key and the function may return &true;. &reftitle.parameters; certificate The certificate. private_key The private key. &reftitle.returnvalues; Returns &true; if private_key is the private key that corresponds to certificate, or &false; otherwise. &reftitle.changelog; &Version; &Description; 8.0.0 certificate accepts an OpenSSLCertificate instance now; previously, a &resource; of type OpenSSL X.509 was accepted. 8.0.0 private_key accepts an OpenSSLAsymmetricKey or OpenSSLCertificate instance now; previously, a &resource; of type OpenSSL key or OpenSSL X.509 was accepted.