{"id":179851,"date":"2024-05-23T17:44:50","date_gmt":"2024-05-23T16:44:50","guid":{"rendered":"https:\/\/datascientest.com\/en\/?p=179851"},"modified":"2024-02-25T18:00:58","modified_gmt":"2024-02-25T17:00:58","slug":"openssl-role-and-functions-of-this-library","status":"publish","type":"post","link":"https:\/\/datascientest.com\/en\/openssl-role-and-functions-of-this-library","title":{"rendered":"OpenSSL: Role and functions of this library"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"179851\" class=\"elementor elementor-179851\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-50e952c e-flex e-con-boxed e-con\" data-id=\"50e952c\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-04ba981 elementor-widget elementor-widget-heading\" data-id=\"04ba981\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-default\">Initially developed in 1998, this library has since undergone constant evolution and regular updates. OpenSSL is written in C and is available on various platforms, including Linux, MacOS and Windows.<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-32e3dbb elementor-widget elementor-widget-text-editor\" data-id=\"32e3dbb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p>Its main objective is to provide robust cryptographic tools and functionalities to secure data and communications. It also offers an <a href=\"https:\/\/datascientest.com\/en\/api-the-path-to-seamless-integration\">API<\/a> enabling <a href=\"https:\/\/datascientest.com\/en\/programming-and-documenting-an-api-with-python-flask-swagger-and-connexion\">developers to easily integrate enhanced security into their applications.<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e9f6766 e-flex e-con-boxed e-con\" data-id=\"e9f6766\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-966e337 elementor-widget elementor-widget-heading\" data-id=\"966e337\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">OpenSSL features<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-27f61d4 elementor-widget elementor-widget-heading\" data-id=\"27f61d4\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Asymmetric and symmetric cryptography<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dc0374d elementor-widget elementor-widget-text-editor\" data-id=\"dc0374d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong>OpenSSL<\/strong> offers full support for so-called &#8220;asymmetric&#8221; cryptography, based on public\/private key pairs. This approach enables separate keys to be used for encrypting and decrypting data, as well as for verifying digital signatures. The main algorithms supported are :<\/p><ul><li><strong>RSA (Rivest, Shamir, Adleman)<\/strong> relies on the generation of a public\/private key pair to encrypt and decrypt data, as well as to create and verify digital signatures.<\/li><li><strong>DSA (Digital Signature Algorithm)<\/strong> is an algorithm used to verify the authenticity and integrity of data. It also relies on the generation of a public\/private key pair.<\/li><li><strong>ECDSA (Elliptic Curve Digital Signature Algorithm)<\/strong> is based on elliptic curves. It offers security comparable to RSA and DSA, but with a smaller key size, making it more efficient in terms of performance and resource utilization.<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-51e7175 elementor-widget elementor-widget-text-editor\" data-id=\"51e7175\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>As for &#8220;symmetrical&#8221; cryptography, OpenSSL offers block ciphers and stream ciphers. These enable data to be encrypted and decrypted using the same key.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f0819cf elementor-widget elementor-widget-image\" data-id=\"f0819cf\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/06\/openssl-datascientest1.png\" title=\"\" alt=\"OpenSSL\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\"><\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-867e5a4 elementor-widget elementor-widget-heading\" data-id=\"867e5a4\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Certificates and communication encryption<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0a23f4f elementor-widget elementor-widget-text-editor\" data-id=\"0a23f4f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong>OpenSSL<\/strong> plays an essential role in digital certificate management. It enables the creation, signing and verification of SSL\/TLS certificates used to secure Web connections. The protocols used guarantee the confidentiality and integrity of data exchanged between servers and clients:<\/p><p>The <strong>SSL (Secure Sockets Layout)<\/strong> protocol is used to secure network connections, in particular HTTPS connections. It has been replaced by the TLS protocol, but is still used to refer to older versions of the protocol.<br \/>TLS (Transport Layer Security) is the successor to SSL. It offers enhanced security, including better protection against attacks and stronger encryption algorithms.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ced0f88 elementor-widget elementor-widget-heading\" data-id=\"ced0f88\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Key and certificate management<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0536e58 elementor-widget elementor-widget-text-editor\" data-id=\"0536e58\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The <strong>OpenSSL<\/strong> library offers advanced key and certificate management features. It allows you to generate public\/private key pairs, create certificate requests, sign certificates with a certification authority (CA), check the validity of certificates and manage certificate chains.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a052c2d elementor-widget elementor-widget-heading\" data-id=\"a052c2d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Other functions<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7da3afb elementor-widget elementor-widget-text-editor\" data-id=\"7da3afb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>In addition to those described above, <strong>OpenSSL<\/strong> also offers essential functions such as the creation of cryptographic hash functions (such as SHA-1 and SHA-256), verification of digital signatures and the manipulation of <strong>certificates in different formats such as PEM and DER.<\/strong><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-53f79b8 e-flex e-con-boxed e-con\" data-id=\"53f79b8\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-198b30a elementor-widget elementor-widget-heading\" data-id=\"198b30a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">To conclude<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7c9af9e elementor-widget elementor-widget-text-editor\" data-id=\"7c9af9e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>To conclude this article, we&#8217;d like to list a number of best practices that need to be followed to guarantee a high level of security.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-18ebacf elementor-widget elementor-widget-html\" data-id=\"18ebacf\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style type=\"text\/css\">\r\n.tg  {border-collapse:collapse;border-spacing:0;}\r\n.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;\r\n  overflow:hidden;padding:10px 5px;word-break:normal;}\r\n.tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;\r\n  font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;}\r\n.tg .tg-a6ll{background-color:#c0c0c0;border-color:inherit;font-family:\"Trebuchet MS\", Helvetica, sans-serif !important;\r\n  text-align:left;vertical-align:top}\r\n.tg .tg-15qk{background-color:#efefef;border-color:inherit;font-family:\"Trebuchet MS\", Helvetica, sans-serif !important;\r\n  font-weight:bold;text-align:left;vertical-align:top}\r\n.tg .tg-9lmj{background-color:#efefef;border-color:inherit;font-family:\"Trebuchet MS\", Helvetica, sans-serif !important;\r\n  text-align:left;vertical-align:top}\r\n<\/style>\r\n<table class=\"tg\" style=\"undefined;table-layout: fixed; width: 800px\">\r\n<colgroup>\r\n<col style=\"width: 100px\">\r\n<col style=\"width: 200px\">\r\n<col style=\"width: 500px\">\r\n<\/colgroup>\r\n<thead>\r\n  <tr>\r\n    <th class=\"tg-a6ll\"><img decoding=\"async\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/06\/image4-7.png\" alt=\"Image\" width=\"50\" height=\"50\"><\/th>\r\n    <th class=\"tg-15qk\">Stay Updated<\/th>\r\n    <th class=\"tg-9lmj\">Ensure you're always using the latest stable version of OpenSSL, which includes security patches and improvements.<\/th>\r\n  <\/tr>\r\n<\/thead>\r\n<tbody>\r\n  <tr>\r\n    <td class=\"tg-a6ll\"><img decoding=\"async\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/06\/image5-7.png\" alt=\"Image\" width=\"50\" height=\"50\"><\/td>\r\n    <td class=\"tg-15qk\">Protect Your Private Keys<\/td>\r\n    <td class=\"tg-9lmj\">They're essential for the security of your communications. Use secure locations and avoid storing your private keys on easily accessible servers or systems.<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-a6ll\"><img decoding=\"async\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/06\/image1-12.png\" alt=\"Image\" width=\"50\" height=\"50\"><\/td>\r\n    <td class=\"tg-15qk\">Use Strong Algorithms<\/td>\r\n    <td class=\"tg-9lmj\">OpenSSL offers a range of encryption algorithms to meet different needs. Avoid using obsolete or vulnerable algorithms.<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-a6ll\"><img decoding=\"async\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/06\/image3-8.png\" alt=\"Image\" width=\"50\" height=\"50\"><\/td>\r\n    <td class=\"tg-15qk\">Protect Your Certificates<\/td>\r\n    <td class=\"tg-9lmj\">Ensure you manage your certificates properly, including renewing them before expiration, storing them securely, and revoking them if necessary.<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-a6ll\"><img decoding=\"async\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/06\/image7.png\" alt=\"Image\" width=\"50\" height=\"50\"><\/td>\r\n    <td class=\"tg-15qk\">Conduct Security Testing<\/td>\r\n    <td class=\"tg-9lmj\">OpenSSL can be used to test the security of servers and applications. Perform vulnerability scans, compliance tests, and assessments of the effectiveness of encryption used.<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-a6ll\"><img decoding=\"async\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/06\/image2-10.png\" alt=\"Image\" width=\"50\" height=\"50\"><\/td>\r\n    <td class=\"tg-15qk\">Keep Potential Threats in Mind<\/td>\r\n    <td class=\"tg-9lmj\">Regularly educate yourself about common attacks, such as brute force attacks, Man-In-The-Middle attacks, and other known vulnerabilities, to implement appropriate protection measures.<\/td>\r\n  <\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8ad243d elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"8ad243d\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/en\/data-scientist-course\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Getting started in Data Science<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-89e41ae e-flex e-con-boxed e-con\" data-id=\"89e41ae\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-39d9cac elementor-widget elementor-widget-html\" data-id=\"39d9cac\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [{\n    \"@type\": \"Question\",\n    \"name\": \"Asymmetric and symmetric cryptography\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"OpenSSL offers full support for so-called \"asymmetric\" cryptography, based on public\/private key pairs. This approach enables separate keys to be used for encrypting and decrypting data, as well as for verifying digital signatures.\"\n    }\n  },{\n    \"@type\": \"Question\",\n    \"name\": \"Key and certificate management\",\n    \"acceptedAnswer\": {\n      \"@type\": \"Answer\",\n      \"text\": \"The OpenSSL library offers advanced key and certificate management features. It allows you to generate public\/private key pairs, create certificate requests, sign certificates with a certification authority (CA), check the validity of certificates and manage certificate chains.\"\n    }\n  }]\n}\n<\/script>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Initially developed in 1998, this library has since undergone constant evolution and regular updates. OpenSSL is written in C and is available on various platforms, including Linux, MacOS and Windows. Its main objective is to provide robust cryptographic tools and functionalities to secure data and communications. It also offers an API enabling developers to easily [&hellip;]<\/p>\n","protected":false},"author":67,"featured_media":179853,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"content-type":"","inline_featured_image":false},"categories":[2425],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v21.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>OpenSSL: Role and functions of this library<\/title>\n<meta name=\"description\" content=\"Explore the versatile role of OpenSSL as a cryptographic library, enabling secure communication over networks. 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