Mysql Openssl

  1. Php Openssl Install
  2. Php_openssl.dll

MySQL can be compiled using OpenSSL or yaSSL, both of which enable encrypted connections based on the OpenSSL API:

  • MySQL Enterprise Edition binary distributions are compiled using OpenSSL. It is not possible to use yaSSL with MySQL Enterprise Edition.

  • MySQL Community Edition binary distributions are compiled using yaSSL.

  • MySQL Community Edition source distributions can be compiled using either OpenSSL or yaSSL (see Section 2.9.6, “Configuring SSL Library Support”).

It is possible to compile MySQL using yaSSL as an alternative to OpenSSL only prior to MySQL 5.7.28. As of MySQL 5.7.28, support for yaSSL is removed and all MySQL builds use OpenSSL.

Mysql -u root -p -h 127.0.0.1 Enter a password for the root user and hit the Enter key from the keyboard. Once we are logged in, type and execute the following command: SHOW VARIABLES LIKE ‘%ssl%’. MySQL Enterprise Edition binary distributions are compiled using OpenSSL. It is not possible to use yaSSL with MySQL Enterprise Edition. MySQL Community Edition binary distributions are compiled using yaSSL. MySQL Community Edition source distributions can be compiled using either OpenSSL or yaSSL.

Connection

I want to use opensslpublicencrypt to encrypt data and store it in a MySQL database. Then, when I need the data, I want to SELECT it from the MySQL database and use opensslprivatedecrypt to decrypt it. After it is encrypted I am using base64 to encode the data for MySQL and again to decode the data before decrypting it. MySQL can be compiled using OpenSSL or yaSSL, both of which enable encrypted connections based on the OpenSSL API: MySQL Enterprise Edition binary distributions are compiled using OpenSSL. It is not possible to use yaSSL with MySQL Enterprise Edition. MySQL Community Edition binary distributions are compiled using yaSSL.

OpenSSL and yaSSL offer the same basic functionality, but MySQL distributions compiled using OpenSSL have additional features:

  • OpenSSL supports TLSv1, TLSv1.1, and TLSv1.2 protocols. yaSSL supports only TLSv1 and TLSv1.1 protocols.

  • OpenSSL supports a more flexible syntax for specifying ciphers (for the ssl_cipher system variable and --ssl-cipher client option), and supports a wider range of encryption ciphers from which to choose. See Command Options for Encrypted Connections, and Section 6.3.2, “Encrypted Connection TLS Protocols and Ciphers”.

  • OpenSSL supports the ssl_capath system variable and --ssl-capath client option. MySQL distributions compiled using yaSSL do not because yaSSL does not look in any directory and do not follow a chained certificate tree. yaSSL requires that all components of the CA certificate tree be contained within a single CA certificate tree and that each certificate in the file has a unique SubjectName value. To work around this limitation, concatenate the individual certificate files comprising the certificate tree into a new file and specify that file as the value of the ssl_ca system variable and --ssl-ca option.

  • OpenSSL supports certificate revocation-list capability (for the ssl_crl and ssl_crlpath system variables and --ssl-crl and --ssl-crlpath client options). Distributions compiled using yaSSL do not because revocation lists do not work with yaSSL. (yaSSL accepts these options but silently ignores them.)

  • Accounts that authenticate using the sha256_password plugin can use RSA key files for secure password exchange over unencrypted connections. See Section 6.4.1.5, “SHA-256 Pluggable Authentication”.

  • The server can automatically generate missing SSL and RSA certificate and key files at startup. See Section 6.3.3.1, “Creating SSL and RSA Certificates and Keys using MySQL”.

  • OpenSSL supports more encryption modes for the AES_ENCRYPT() and AES_DECRYPT() functions. See Section 12.14, “Encryption and Compression Functions”

Php Openssl Install

Certain OpenSSL-related system and status variables are present only if MySQL was compiled using OpenSSL:

To determine whether a server was compiled using OpenSSL, test the existence of any of those variables. For example, this statement returns a row if OpenSSL was used and an empty result if yaSSL was used:

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Azure Database for MySQL supports connecting your database server to client applications using Secure Sockets Layer (SSL). Enforcing SSL connections between your database server and your client applications helps protect against 'man in the middle' attacks by encrypting the data stream between the server and your application.

Note

Updating the require_secure_transport server parameter value does not affect the MySQL service's behavior. Use the SSL and TLS enforcement features outlined in this article to secure connections to your database.

Note

Based on the feedback from customers we have extended the root certificate deprecation for our existing Baltimore Root CA till February 15, 2021 (02/15/2021).

Important

SSL root certificate is set to expire starting February 15, 2021 (02/15/2021). Please update your application to use the new certificate. To learn more , see planned certificate updates

SSL Default settings

By default, the database service should be configured to require SSL connections when connecting to MySQL. We recommend to avoid disabling the SSL option whenever possible.

When provisioning a new Azure Database for MySQL server through the Azure portal and CLI, enforcement of SSL connections is enabled by default.

Connection strings for various programming languages are shown in the Azure portal. Those connection strings include the required SSL parameters to connect to your database. In the Azure portal, select your server. Under the Settings heading, select the Connection strings. The SSL parameter varies based on the connector, for example 'ssl=true' or 'sslmode=require' or 'sslmode=required' and other variations.

In some cases, applications require a local certificate file generated from a trusted Certificate Authority (CA) certificate file to connect securely. Currently customers can only use the predefined certificate to connect to an Azure Database for MySQL server which is located at https://www.digicert.com/CACerts/BaltimoreCyberTrustRoot.crt.pem.

Similarly, the following links point to the certificates for servers in sovereign clouds: Azure Government, Azure China, and Azure Germany.

To learn how to enable or disable SSL connection when developing application, refer to How to configure SSL.

TLS enforcement in Azure Database for MySQL

Azure Database for MySQL supports encryption for clients connecting to your database server using Transport Layer Security (TLS). TLS is an industry standard protocol that ensures secure network connections between your database server and client applications, allowing you to adhere to compliance requirements.

TLS settings

Azure Database for MySQL provides the ability to enforce the TLS version for the client connections. To enforce the TLS version, use the Minimum TLS version option setting. The following values are allowed for this option setting:

Minimum TLS settingClient TLS version supported
TLSEnforcementDisabled (default)No TLS required
TLS1_0TLS 1.0, TLS 1.1, TLS 1.2 and higher
TLS1_1TLS 1.1, TLS 1.2 and higher
TLS1_2TLS version 1.2 and higher

Php_openssl.dll

For example, setting the value of minimum TLS setting version to TLS 1.0 means your server will allow connections from clients using TLS 1.0, 1.1, and 1.2+. Alternatively, setting this to 1.2 means that you only allow connections from clients using TLS 1.2+ and all connections with TLS 1.0 and TLS 1.1 will be rejected.

Note

By default, Azure Database for MySQL does not enforce a minimum TLS version (the setting TLSEnforcementDisabled).

Once you enforce a minimum TLS version, you cannot later disable minimum version enforcement.

The minimum TLS version setting doesnt require any restart of the server can be set while the server is online. To learn how to set the TLS setting for your Azure Database for MySQL, refer to How to configure TLS setting.

Cipher support by Azure Database for MySQL Single server

As part of the SSL/TLS communication, the cipher suites are validated and only support cipher suits are allowed to communicate to the database serer. The cipher suite validation is controlled in the gateway layer and not explicitly on the node itself. If the cipher suites doesn't match one of suites listed below, incoming client connections will be rejected.

Cipher suite supported

  • TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
  • TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
  • TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
  • TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256

Next steps

  • Learn how to configure SSL
  • Learn how to configure TLS