It is not surprising that PostgreSQL has emerged as the preferred open-source relational database among several individuals and organizations.<\/p>\n\n\n\n
In this blog, we will discuss how we can Encrypt a PostgreSQL Database at Rest and in Transit.<\/p>\n\n\n\n Encryption is the process of modifying data in such a way that it is unreadable for someone other than those with special knowledge (by using a \u201ckey\u201d) that enables them to modify the information back to its original, readable form.<\/p>\n\n\n\n Data encryption helps in preventing unauthorized individuals from reading information.<\/p>\n\n\n\n When data does not travel actively from device to device or network to network, such as information saved on a hard disc, laptop, flash drive, or otherwise archived\/stored is known as Data at rest. <\/p>\n\n\n\n Therefore, it aims to secure inactive information stored on any computer or network.<\/p>\n\n\n\n For example, your PostgreSQL\u2019s data_directory, MySQL\/MariaDB data_dir, or MongoDB\u2019s dbPath storage locations.<\/p>\n\n\n\n Data in motion or in transit is when it travels actively from one place to another, such as through the Internet or a private network.<\/p>\n\n\n\n Its protection in transit is its security as it passes from network to network or when it is moved from a local storage system to a cloud storage device<\/a>.<\/p>\n\n\n\n Data transferred across an insecure connection can be intercepted by the attacker by listening in. This can be prevented if TLS\/SSL encryption is used to encrypt the data transferred over the wire between the database client and the database server.<\/p>\n\n\n\n To learn more about encryption, you can refer to the Blog<\/a>.<\/p>\n\n\n\n Database encryption offers improved security for your data in transit and at rest. The recent security breach cases have caused many organizations to take encryption seriously. <\/p>\n\n\n\n Because they often contain the most important asset for most organizations, database servers are frequently the target of attackers.<\/p>\n\n\n\n An attacker will likely take advantage of the data on your server once they have access to sensitive information.<\/p>\n\n\n\n It is highly recommended practice to encrypt your data, particularly for companies in the financial, healthcare, or e-commerce industries. <\/p>\n\n\n\n People are highly conscious of data security and privacy, and they want their information to be kept safe and utilized only when necessary. <\/p>\n\n\n\n Database encryption has the following wonderful advantages:<\/p>\n\n\n\n PostgreSQL supports multiple encryption levels and flexibility in safeguarding data from exposure from network security breaches, dishonest administrators, and loss of database servers. <\/p>\n\n\n\n You may also need to encrypt sensitive data, like medical information or financial transactions.<\/p>\n\n\n\n The administrator cannot verify the real password that is assigned to a database user since user passwords are saved as hashes. Passwords for PostgreSQL databases are different from those for operating system users. <\/p>\n\n\n\n Every database user’s password is kept in the pg_authid system catalog. Password authentication will always fail for a user for whom no password has been set up since the password that is saved for that user is null.<\/p>\n\n\n\n There are numerous password-based authentication techniques. Both of these approaches work similarly, but they differ in how the credentials of users are kept on the server and how a client’s password is transmitted over the network.<\/p>\n\n\n\n All data transmitted over the network, including the password, queries, and returned data, is encrypted via SSL connections<\/a>.<\/p>\n\n\n\n Administrators can choose which hosts require SSL-encrypted connections (hostssl) and which can utilize non-encrypted connections (host) using the pg_hba.conf file. Clients can also choose that they will only use SSL to connect to servers. <\/p>\n\n\n\n You can also encrypt transmissions using SSH or Tunnel.<\/p>\n\n\n\n A configuration file that is kept in the data directory of the database cluster and is commonly called pg_hba.conf manages client authentication. Host-based authentication is referred to as HBA.<\/p>\n\n\n\n When the data directory is initialized by initdb, a default pg_hba.conf file is installed. However, you can use the hba_file configuration parameter to specify a different location for the authentication configuration file.<\/p>\n\n\n\n SSL certificates can be exchanged between the client and the server. This offers more robust identity verification than just using passwords, although it does require additional setup on both ends. <\/p>\n\n\n\n It doesn’t allow a computer to pose as the server for the brief purpose of reading the password that the client sends. <\/p>\n\n\n\n Furthermore, it aids in preventing “man in the middle” attacks, in which a computer positioned between the client and the server assumes the role of the server and reads and transfers all data between the two.<\/p>\n\n\n\n For enhanced security, PostgreSQL comes with a native capability for encrypting client\/server communications over SSL connections. <\/p>\n\n\n\n For this to work, PostgreSQL support must be enabled during build time, and OpenSSL must be installed on both client and server systems. <\/p>\n\n\n\n OpenSSL supports numerous authentication techniques and ciphers of different strengths. While a list of ciphers can be supplied in the OpenSSL configuration file, you can alter postgresql.conf’s ssl_ciphers to specifically name ciphers for usage by the database server.<\/p>\n\n\n\n To set up SSL, make sure the value of parameter ssl = on is set in postgresql.conf<\/p>\n\n\n\n After generating the SSL you can mention the path of the SSL files in the below options Encrypting the database while it is on the disc is the first technique. It is the most basic file system-level encryption currently in use. If the drives or the computer as a whole are stolen, this method stops unencrypted data from being read from them. <\/p>\n\n\n\n Since the operating system offers an unencrypted view of the data when the file system is mounted, this does not protect against attacks during that time. <\/p>\n\n\n\n However, the encryption key must be transferred to the operating system in order for the file system to be mounted. At times, the key is kept on the host that mounts the disc.<\/p>\n\n\n\n Certain fields can be stored encrypted due to the pgcrypto module. If there is just a small amount of sensitive data, this is helpful. After the data is decrypted on the server and delivered to the client, the client provides the decryption key. <\/p>\n\n\n\n Duration the data is being decrypted and transferred between the client and server, the decrypted data and the decryption key are kept on file on the server for a short duration. <\/p>\n\n\n\n This creates a brief period of opportunity for someone with full access to the database server, such as the system administrator, to intercept the data and keys.<\/p>\n\n\n\n Sensitive and valuable amounts of data in an organization rise simultaneously since sensitive data is always present, even in our day-to-day personal lives. <\/p>\n\n\n\n It’s critical to realize that not all data needs to be encrypted. Certain types of data may not require encryption because they are regularly shared globally or used for different purposes. <\/p>\n\n\n\n Consider the benefits and drawbacks of implementing encryption in your database. Finding the right place and application method for it allows you to create a secure environment without sacrificing efficiency.<\/p>\n\n\n\n To see Admin configuration password encryption and decryption in magento, you can refer to the Blog<\/a>.<\/p>\n\n\n\n Was this guide helpful? Please share your feedback in the comments below.<\/p>\n\n\n\n In case you have any issues\/queries regarding the module please raise a ticket at![\"alt\"](\"https:\/\/cdnblog.webkul.com\/blog\/wp-content\/uploads\/2024\/04\/how-to-encrypt-a-postgresql-database-at-rest-and-in-transit.webp\")
<\/figure>\n\n\n\nData Encryption<\/h2>\n\n\n\n
Data at Rest<\/strong><\/h3>\n\n\n\n
Data in transit<\/strong><\/h3>\n\n\n\n
Database Encryption<\/h2>\n\n\n\n
Why do we need to Encrypt the Database?<\/h2>\n\n\n\n
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Ways to Encrypt PostgreSQL Database<\/h2>\n\n\n\n
Password Encryption<\/h2>\n\n\n\n
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How to Achieve<\/strong><\/h3>\n\n\n\n
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Encrypt Data Across A Network<\/h2>\n\n\n\n
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Cons<\/strong><\/h3>\n\n\n\n
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How to Achieve<\/strong><\/h3>\n\n\n\n
SSL Host Authentication<\/h2>\n\n\n\n
Pros<\/strong><\/h3>\n\n\n\n
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How to Achieve<\/strong><\/h3>\n\n\n\n
ssl_cert_file=\u2019server.crt\u2019
ssl_key_file=\u2019server.key\u2019<\/p>\n\n\n\nOther Methods to encrypt the data<\/h2>\n\n\n\n
Data Partition Encryption<\/h3>\n\n\n\n
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Encryption For Specific Columns<\/h3>\n\n\n\n
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Conclusion<\/h2>\n\n\n\n
NEED HELP?<\/h3>\n\n\n\n
https:\/\/webkul.uvdesk.com\/en\/customer\/create-ticket\/<\/strong><\/a><\/p>\n\n\n\n