Solving the encryption problem of OpenSSL in PHP

This article mainly introduces the solution to the encryption problem of OpenSSL in PHP. It has a certain reference value. Now I share it with you. Friends in need can refer to it.

There is a need for it in recent company projects. Go to the encryption and java side of OpenSSL to perform interface verification. When the test environment is upgraded to PHP7, an encryption error will occur. Later, after multiple inspections, the cause was finally found:

1. # in the PHP7 environment. ##openssl_get_privatekeyThe method is changed to openssl_pkey_get_private

2. You need to convert the secret key. There is a difference between the key format in the window environment and the Linux environment (not sure yet) Is it related to the operating system?)

3. PHP’s key verification needs to add the header and tail.

Post the attached method here

Method to convert the secret key format:

function transJavaRsaKeyToPhpOpenSSL($content) {
        if ($content) {
            return trim(chunk_split($content, 64, "\n"));
        }
        return false;
    }

Method to add header and tail:

function appendFlags($content, $isPublic = true) {
        if ($isPublic) {
            return "-----BEGIN PUBLIC KEY-----\n" . $content . "\n-----END PUBLIC KEY-----\n";
        }
        else {
            return "-----BEGIN PRIVATE KEY-----\n" . $content . "\n-----END PRIVATE KEY-----\n";
        }
    }

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