PHP Read der Format certificate garbled solution

This article mainly introduces the PHP read der Format certificate garbled solution of the relevant information, the need for friends can refer to the

The problems encountered:

My project needs to use the DER Format Certificate public key and RSA algorithm to check the relevant signature, PHP on the RSA algorithm is not very understand, on hand has Java and. NET two languages, PHP implementation is very difficult.

Solutions for small partners:

This certificate has his own corresponding code, first to find this, and then read in PHP, set the corresponding code. In addition, if you are directly echo out the content of the certificate, before that it is best to use the label code, otherwise he is not garbled, but your browser can not recognize it. Also pay attention to your PHP that file code OH ~ ~

Direct read of course is garbled, Der Key certificate is binary code or BASE64 encoded files, PHP can use the Openssl_x509_parse function to resolve:

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<?php $cert = file_get_contents (' filename.crt '); $ssl = Openssl_x509_parse ($cert); Var_dump ($SSL);?>

The above mentioned is the entire content of this article, I hope you can enjoy.