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1. www.php.net › manual › enPHP: openssl_dh_compute_key - Manual

   www.php.net › manual › en

   The shared secret returned by openssl_dh_compute_key () is often used as an encryption key to secretly communicate with a remote party. This is known as the Diffie-Hellman key exchange.

2. www.basicexamples.com › php › openssl-dh-compute-keyBasic example of PHP function openssl_dh_compute_key ()

   www.basicexamples.com › php › openssl-dh-compute-key

   In the example above, we initialize a local DH key using openssl_pkey_new and generate the local public key using openssl_pkey_get_details. We then have a remote DH public key (received from another party). The openssl_dh_compute_key function is used to compute the shared secret between the remote and local public keys. Finally, we display the shared secret by converting it to hexadecimal ...

3. github.com › functions › openssl-dh-compute-keydoc-en/reference/openssl/functions/openssl-dh-compute-key.xml ...

   github.com › functions › openssl-dh-compute-key

   English PHP documentation. Contribute to php/doc-en development by creating an account on GitHub.

4. onlinephp.io › openssl-dh-compute-key › manualopenssl_dh_compute_key - OnlinePHP.io Example

   onlinephp.io › openssl-dh-compute-key › manual

   The shared secret returned by openssl_dh_compute_key is often used as an encryption key to secretly communicate with a remote party. This is known as the Diffie-Hellman key exchange.

5. www.php.net › manual › enPHP: OpenSSL Functions - Manual

   www.php.net › manual › en

   openssl_pkey_derive — Computes shared secret for public value of remote and local DH or ECDH key openssl_pkey_export — Gets an exportable representation of a key into a string

6. www.creationdev.net › docs › phpopenssl_dh_compute_key [Ref:fonction-openssl-dh-compute-key.php]

   www.creationdev.net › docs › php

   Le secret partagé retourné par openssl_dh_compute_key () est souvent utilisé comme une clé de chiffrement pour communiquer secrètement avec une partie distante. Ceci est connue sous l'échange de clé Diffie-Hellman. Note: ECDH n'est supporté qu'à partir de PHP 8.1.0 et OpenSSL 3.0.0.

7. People also ask

   What is DH public key?

   • DH Public key of the remote party. A local DH private key, corresponding to the public key to be shared with the remote party. Returns shared secret on success or false on failure. private_key accepts an OpenSSLAsymmetricKey now; previously, a resource of type OpenSSL key was accepted. Example #1 Compute a shared secret

   openssl_dh_compute_key - PHP

   www.php.net/manual/en/function.openssl-dh-compute-key.php

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   What DH parameters should I use for remote and local key pairs?

   • It is important to use the same DH parameters for remote and local key pairs; otherwise, the generated secret between the two parties will not match. Note: ECDH is only supported as of PHP 8.1.0 and OpenSSL 3.0.0. DH Public key of the remote party. A local DH private key, corresponding to the public key to be shared with the remote party.

   openssl_dh_compute_key - PHP

   www.php.net/manual/en/function.openssl-dh-compute-key.php

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   How to generate a private key in OpenSSL?

   • Set OPEN_SSL_PASSPHRASE to any passphrase. * // 3. Use the OpenSSL::do_csr method to generate your private and public keys (see next section). * // 4. Save the private key somewhere offline and save your public key somewhere on this machine. * // 5. Set OPEN_SSL_PUBKEY_PATH to the public key's path. * // To generate keys * $ossl = new OpenSSL;

   PHP: OpenSSL Functions - Manual

   www.php.net/manual/en/ref.openssl.php

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   Why does OpenSSL not decrypt a public key?

   • Public key is taken from an external file and if it differs from the one stored internally, OpenSSL fails to decrypt the text. This note is primarily aimed at folks storing encrypted things in MySQL as I'm unfamiliar with other database setups.

   PHP: OpenSSL Functions - Manual

   www.php.net/manual/en/ref.openssl.php

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8. www.typeerror.org › docs › phpopenssl_dh_compute_key - PHP Documentation - TypeError

   www.typeerror.org › docs › php

   The shared secret returned by openssl_dh_compute_key () is often used as an encryption key to secretly communicate with a remote party. This is known as the Diffie-Hellman key exchange.