PHP Read der Format certificate garbled solution _php Instance

Problems encountered:

My project needs to use the DER format of the certificate public key and RSA algorithm to check the relevant signature, PHP about the RSA algorithm is not very understanding, in hand Java and. NET two languages, PHP implementation is very difficult.

Answers from our small partners:

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

Direct read of course is garbled, Der Key certificate is a binary encoding or BASE64 encoded file, PHP can be used to parse the Openssl_x509_parse function:

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

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