openssl_public_encrypt Encrypts data with public key &reftitle.description; boolopenssl_public_encrypt stringdata stringencrypted_data OpenSSLAsymmetricKeyOpenSSLCertificatearraystringpublic_key intpaddingOPENSSL_PKCS1_PADDING openssl_public_encrypt encrypts data with public public_key and stores the result into encrypted_data. Encrypted data can be decrypted via openssl_private_decrypt. This function can be used e.g. to encrypt message which can be then read only by owner of the private key. It can be also used to store secure data in database. &reftitle.parameters; data encrypted_data This will hold the result of the encryption. public_key The public key. padding padding can be one of OPENSSL_PKCS1_PADDING, OPENSSL_SSLV23_PADDING, OPENSSL_PKCS1_OAEP_PADDING, OPENSSL_NO_PADDING. &reftitle.returnvalues; &return.success; &reftitle.changelog; &Version; &Description; 8.0.0 public_key accepts an OpenSSLAsymmetricKey or OpenSSLCertificate instance now; previously, a &resource; of type OpenSSL key or OpenSSL X.509 was accepted. &reftitle.seealso; openssl_private_encrypt openssl_private_decrypt