openssl_sign

Description

bool openssl_sign ( string data, string &signature, mixed priv_key_id [, int signature_alg] )

Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки. If successful the signature is returned in signature.

openssl_sign() computes a signature for the specified data by using SHA1 for hashing followed by encryption using the private key associated with priv_key_id. Note that the data itself is not encrypted.

Пример 1. openssl_sign() example <?php // $data is assumed to contain the data to be signed // fetch private key from file and ready it $fp = fopen ( "/src/openssl-0.9.6/demos/sign/key.pem" , "r" ); $priv_key = fread ( $fp , 8192 ); fclose ( $fp ); $pkeyid = openssl_get_privatekey ( $priv_key ); // compute signature openssl_sign ( $data , $signature , $pkeyid ); // free the key from memory openssl_free_key ( $pkeyid ); ?>

Смотрите также openssl_verify().