{"id":540,"date":"2024-08-21T10:55:49","date_gmt":"2024-08-21T10:55:49","guid":{"rendered":"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/?p=540"},"modified":"2024-08-21T10:59:25","modified_gmt":"2024-08-21T10:59:25","slug":"database-encryption-method","status":"publish","type":"post","link":"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/database-encryption-method\/","title":{"rendered":"Types of Database Encryption Methods"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/database-encryption-method\/#How_does_database_encryption_work\" >How does database encryption work?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/database-encryption-method\/#Common_database_encryption_methods\" >Common database encryption methods<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/database-encryption-method\/#1_Transparent_Data_Encryption_TDE\" >1. Transparent Data Encryption (TDE)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/database-encryption-method\/#2_Column-Level_Encryption\" >2. Column-Level Encryption<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/database-encryption-method\/#3_File-Level_Encryption\" >3. File-Level Encryption<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/database-encryption-method\/#4_Application-Level_Encryption\" >4. Application-Level Encryption<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/database-encryption-method\/#5_Transport-Level_Encryption_TLSSSL\" >5. Transport-Level Encryption (TLS\/SSL)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/database-encryption-method\/#6_Full-Disk_Encryption\" >6. Full-Disk Encryption<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/database-encryption-method\/#7_Data_Masking\" >7. Data Masking<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/database-encryption-method\/#8_Key_Management_Systems_KMS_Integration\" >8. Key Management Systems (KMS) Integration<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/database-encryption-method\/#9_Homomorphic_Encryption\" >9. Homomorphic Encryption<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/database-encryption-method\/#10_Cell-Level_Encryption\" >10. Cell-Level Encryption<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 id=\"index_title_1\" class=\"h3\" data-item=\"1\"><span class=\"ez-toc-section\" id=\"How_does_database_encryption_work\"><\/span>How does database encryption work?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>With database encryption, an encryption algorithm transforms data within a database from a readable state into a ciphertext of unreadable characters. With a key generated by the algorithm, a user can decrypt the data and retrieve the usable information as needed. Unlike security methods like antivirus software or\u00a0<span class=\"linkline\">password protection<\/span>, this form of defense is positioned at the level of the data itself. This is crucial because if a system is breached, the data is still only readable for users who have the right encryption keys.<\/p>\n<p>There are a few different options for implementing a database encryption algorithm, including varying lengths of keys. You will find that different databases\u2014<span class=\"linkline\">Oracle<\/span>, SQL, Access, etc.\u2014offer different data encryption methods, options that may inform which method you recommend to customers.<\/p>\n<p>Longer keys tend to be more secure since they are harder to discover through computation. For instance, 128-bit encryption relies on a key that is 128 bits in size, and by virtue of this length, is virtually impossible to \u201ccrack\u201d with a computation system.<\/p>\n<p>In short, the system would have to test 2128 combinations to crack the code, which would take\u00a0<span class=\"linkline\">thousands of years<\/span>. As a rule of thumb, a shorter key length means poorer security, and standard key lengths may have to continue to grow as general computational power increases.<\/p>\n<p>That said, a longer key length can reduce the number of sessions per second, which can have a negative impact on throughput. Many developers hold off on database encryption precisely because they fear such performance degradations and potential system slowdowns. Additionally, encrypting a database will require more storage space than the original volume of data.<\/p>\n<p>While it\u2019s true that database encryption adds some complexity (<span class=\"linkline\">making tasks like backup and recovery\u00a0trickier<\/span>), it\u2019s possible to ensure good performance by implementing a range of best practices. For instance, strategically implementing file-level encryption will have a much lower impact on performance than application-level or other more granular encryption methods.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-543 size-full\" src=\"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/wp-content\/uploads\/2024\/08\/db-encryption-methods.png\" alt=\"Database Encryption\" width=\"696\" height=\"377\" srcset=\"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/wp-content\/uploads\/2024\/08\/db-encryption-methods.png 696w, https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/wp-content\/uploads\/2024\/08\/db-encryption-methods-300x163.png 300w\" sizes=\"auto, (max-width: 696px) 100vw, 696px\" \/><\/p>\n<h2 id=\"index_title_3\" class=\"h3\" data-item=\"3\"><span class=\"ez-toc-section\" id=\"Common_database_encryption_methods\"><\/span>Common database encryption methods<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>It\u2019s possible to encrypt data at a number of levels, from the application to the database engine.It\u2019s important to be clear on the purposes and requirements of these different encryption methods:<\/p>\n<ul>\n<li>API Method: This is application-level encryption that is appropriate across any database product (Oracle, MSSQL, etc). Queries within the encrypted columns are modified within the application, requiring hands-on work. If a business has an abundance of data, this can be a time-consuming approach. Additionally, encryption that functions at the application level can lead to increased performance issues.<\/li>\n<li>Plug-In Method: In this case, you\u2019ll attach an encryption module, or \u201cpackage,\u201d onto the database management system. This method works independently of the application, requires less code management and modification, and is more flexible\u2014you can apply this to both <a href=\"https:\/\/www.squarebrothers.com\/\" target=\"_blank\" rel=\"noopener\">commercial<\/a> and open-source databases. With this option, you will typically use column-level encryption.<\/li>\n<li>TDE Method: Transparent data encryption (TDE) executes encryption and decryption within the database engine itself. This method doesn\u2019t require code modification of the database or application and is easier for admins to manage. Since it\u2019s a particularly popular method of database encryption, TDE is explored in further detail below.<\/li>\n<\/ul>\n<p>Database encryption methods are essential for protecting sensitive data within a database. Here are some common types of database encryption methods:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1_Transparent_Data_Encryption_TDE\"><\/span>1. <strong>Transparent Data Encryption (TDE)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Description<\/strong>: TDE encrypts the entire database at the storage level, making it transparent to the application layer.<\/li>\n<li><strong>Use Case<\/strong>: Often used in scenarios where the goal is to protect data at rest without requiring changes to the application.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"2_Column-Level_Encryption\"><\/span>2. <strong>Column-Level Encryption<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Description<\/strong>: Encrypts specific columns within a database table that contain sensitive information (e.g., Social Security Numbers, credit card numbers).<\/li>\n<li><strong>Use Case<\/strong>: Ideal when only certain sensitive data within a database needs to be encrypted, allowing for more fine-grained control.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"3_File-Level_Encryption\"><\/span>3. <strong>File-Level Encryption<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Description<\/strong>: Encrypts the entire database file or specific files that store database data.<\/li>\n<li><strong>Use Case<\/strong>: Useful for securing backup files or when the entire database file needs to be protected.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"4_Application-Level_Encryption\"><\/span>4. <strong>Application-Level Encryption<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Description<\/strong>: Data is encrypted by the application before being stored in the database.<\/li>\n<li><strong>Use Case<\/strong>: Provides the highest level of security, as data is encrypted end-to-end and is never stored in plaintext in the database.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"5_Transport-Level_Encryption_TLSSSL\"><\/span>5. <strong>Transport-Level Encryption (TLS\/SSL)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Description<\/strong>: Encrypts the data while it is being transmitted between the database server and the client.<\/li>\n<li><strong>Use Case<\/strong>: Essential for securing data in transit, particularly in distributed systems or cloud environments.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"6_Full-Disk_Encryption\"><\/span>6. <strong>Full-Disk Encryption<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Description<\/strong>: Encrypts the entire disk where the database resides, including all files and directories.<\/li>\n<li><strong>Use Case<\/strong>: Useful for protecting data at rest in scenarios where the entire disk may be at risk of physical theft.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"7_Data_Masking\"><\/span>7. <strong>Data Masking<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Description<\/strong>: Although not strictly encryption, data masking involves obscuring sensitive data by replacing it with fictitious but realistic data.<\/li>\n<li><strong>Use Case<\/strong>: Often used in development and testing environments where real data is not needed.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"8_Key_Management_Systems_KMS_Integration\"><\/span>8. <strong>Key Management Systems (KMS) Integration<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Description<\/strong>: Involves using external key management systems to handle the encryption keys.<\/li>\n<li><strong>Use Case<\/strong>: Essential for maintaining control over encryption keys, especially in large-scale or highly regulated environments.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"9_Homomorphic_Encryption\"><\/span>9. <strong>Homomorphic Encryption<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Description<\/strong>: Allows computation on encrypted data without needing to decrypt it first.<\/li>\n<li><strong>Use Case<\/strong>: Useful in scenarios where data privacy needs to be maintained while still performing computations, though it is computationally expensive.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"10_Cell-Level_Encryption\"><\/span>10. <strong>Cell-Level Encryption<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Description<\/strong>: Encrypts individual cells in a database table, offering more granular control than column-level encryption.<\/li>\n<li><strong>Use Case<\/strong>: Used when there is a need for extremely fine-grained encryption, especially in tables with mixed sensitivity levels.<\/li>\n<\/ul>\n<p>Each encryption method has its own strengths and is suitable for different scenarios based on security requirements, performance considerations, and regulatory compliance needs.<\/p>\n<p>Along with if you need to know about SSH Essentials: Working with SSH Servers, Clients, and Keys <a href=\"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/working-with-ssh-servers\/\">click.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>How does database encryption work? With database encryption, an encryption algorithm transforms data within a database from a readable state into a ciphertext of unreadable characters. With a key generated by the algorithm, a user can decrypt the data and retrieve the usable information as needed. Unlike security methods like antivirus software or\u00a0password protection, this [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":543,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[66,42],"tags":[95,94,96,97],"class_list":["post-540","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ssh","category-linux","tag-api","tag-encryption","tag-kms","tag-tde"],"_links":{"self":[{"href":"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/wp-json\/wp\/v2\/posts\/540","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/wp-json\/wp\/v2\/comments?post=540"}],"version-history":[{"count":6,"href":"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/wp-json\/wp\/v2\/posts\/540\/revisions"}],"predecessor-version":[{"id":547,"href":"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/wp-json\/wp\/v2\/posts\/540\/revisions\/547"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/wp-json\/wp\/v2\/media\/543"}],"wp:attachment":[{"href":"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/wp-json\/wp\/v2\/media?parent=540"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/wp-json\/wp\/v2\/categories?post=540"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hyderabadwebhosting.co.in\/tutorials\/wp-json\/wp\/v2\/tags?post=540"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}