{"id":25871,"date":"2024-03-16T05:48:38","date_gmt":"2024-03-16T05:48:38","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-implement-python-file-encryption-and-decryption\/"},"modified":"2024-03-22T07:13:08","modified_gmt":"2024-03-22T07:13:08","slug":"how-to-implement-python-file-encryption-and-decryption","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-implement-python-file-encryption-and-decryption\/","title":{"rendered":"How to implement Python file encryption and decryption."},"content":{"rendered":"<p>Encrypting and decrypting Python files can be achieved by using encryption algorithms and the corresponding keys. Here is a simple example:<\/p>\n<p>Encrypting files:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">from<\/span> cryptography.fernet <span class=\"hljs-keyword\">import<\/span> Fernet\r\n\r\n<span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title function_\">encrypt_file<\/span>(<span class=\"hljs-params\">file_path, key<\/span>):\r\n    <span class=\"hljs-keyword\">with<\/span> <span class=\"hljs-built_in\">open<\/span>(file_path, <span class=\"hljs-string\">'rb'<\/span>) <span class=\"hljs-keyword\">as<\/span> file:\r\n        data = file.read()\r\n\r\n    fernet = Fernet(key)\r\n    encrypted_data = fernet.encrypt(data)\r\n\r\n    <span class=\"hljs-keyword\">with<\/span> <span class=\"hljs-built_in\">open<\/span>(file_path, <span class=\"hljs-string\">'wb'<\/span>) <span class=\"hljs-keyword\">as<\/span> file:\r\n        file.write(encrypted_data)\r\n\r\n<span class=\"hljs-comment\"># \u4f7f\u7528\u4e00\u4e2a\u968f\u673a\u751f\u6210\u7684\u5bc6\u94a5<\/span>\r\nkey = Fernet.generate_key()\r\n\r\n<span class=\"hljs-comment\"># \u52a0\u5bc6\u6587\u4ef6<\/span>\r\nencrypt_file(<span class=\"hljs-string\">'plain.txt'<\/span>, key)\r\n<\/code><\/pre>\n<p>Decrypt document:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">from<\/span> cryptography.fernet <span class=\"hljs-keyword\">import<\/span> Fernet\r\n\r\n<span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title function_\">decrypt_file<\/span>(<span class=\"hljs-params\">file_path, key<\/span>):\r\n    <span class=\"hljs-keyword\">with<\/span> <span class=\"hljs-built_in\">open<\/span>(file_path, <span class=\"hljs-string\">'rb'<\/span>) <span class=\"hljs-keyword\">as<\/span> file:\r\n        encrypted_data = file.read()\r\n\r\n    fernet = Fernet(key)\r\n    decrypted_data = fernet.decrypt(encrypted_data)\r\n\r\n    <span class=\"hljs-keyword\">with<\/span> <span class=\"hljs-built_in\">open<\/span>(file_path, <span class=\"hljs-string\">'wb'<\/span>) <span class=\"hljs-keyword\">as<\/span> file:\r\n        file.write(decrypted_data)\r\n\r\n<span class=\"hljs-comment\"># \u4f7f\u7528\u4e4b\u524d\u751f\u6210\u7684\u5bc6\u94a5<\/span>\r\nkey = <span class=\"hljs-string\">b'your_generated_key'<\/span>\r\n\r\n<span class=\"hljs-comment\"># \u89e3\u5bc6\u6587\u4ef6<\/span>\r\ndecrypt_file(<span class=\"hljs-string\">'encrypted.txt'<\/span>, key)\r\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u793a\u4f8b\u4f7f\u7528\u4e86cryptography\u5e93\u4e2d\u7684Fernet\u7b97\u6cd5\u6765\u8fdb\u884c\u6587\u4ef6\u52a0\u5bc6\u548c\u89e3\u5bc6\u3002\u5728\u52a0\u5bc6\u65f6\uff0c\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\u5e76\u4f7f\u7528\u5bc6\u94a5\u5bf9\u5176\u8fdb\u884c\u52a0\u5bc6\uff0c\u7136\u540e\u5c06\u52a0\u5bc6\u540e\u7684\u6570\u636e\u5199\u56de\u5230\u6587\u4ef6\u4e2d\u3002\u5728\u89e3\u5bc6\u65f6\uff0c\u8bfb\u53d6\u52a0\u5bc6\u540e\u7684\u6587\u4ef6\u5185\u5bb9\u5e76\u4f7f\u7528\u5bc6\u94a5\u5bf9\u5176\u8fdb\u884c\u89e3\u5bc6\uff0c\u7136\u540e\u5c06\u89e3\u5bc6\u540e\u7684\u6570\u636e\u5199\u56de\u5230\u6587\u4ef6\u4e2d\u3002\u8bf7\u6ce8\u610f\uff0c\u5bc6\u94a5\u9700\u8981\u5728\u52a0\u5bc6\u548c\u89e3\u5bc6\u65f6\u4fdd\u6301\u4e00\u81f4\u3002<\/p>\n<p>It is important to note that file encryption and decryption is a basic method of protecting file content, but it does not prevent other types of attacks or ensure the integrity of files. It is crucial to ensure the security of the key when using file encryption and decryption.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Encrypting and decrypting Python files can be achieved by using encryption algorithms and the corresponding keys. Here is a simple example: Encrypting files: from cryptography.fernet import Fernet def encrypt_file(file_path, key): with open(file_path, &#8216;rb&#8217;) as file: data = file.read() fernet = Fernet(key) encrypted_data = fernet.encrypt(data) with open(file_path, &#8216;wb&#8217;) as file: file.write(encrypted_data) # \u4f7f\u7528\u4e00\u4e2a\u968f\u673a\u751f\u6210\u7684\u5bc6\u94a5 key = Fernet.generate_key() [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-25871","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to implement Python file encryption and decryption. - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/blog\/how-to-implement-python-file-encryption-and-decryption\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to implement Python file encryption and decryption.\" \/>\n<meta property=\"og:description\" content=\"Encrypting and decrypting Python files can be achieved by using encryption algorithms and the corresponding keys. Here is a simple example: Encrypting files: from cryptography.fernet import Fernet def encrypt_file(file_path, key): with open(file_path, &#039;rb&#039;) as file: data = file.read() fernet = Fernet(key) encrypted_data = fernet.encrypt(data) with open(file_path, &#039;wb&#039;) as file: file.write(encrypted_data) # \u4f7f\u7528\u4e00\u4e2a\u968f\u673a\u751f\u6210\u7684\u5bc6\u94a5 key = Fernet.generate_key() [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/how-to-implement-python-file-encryption-and-decryption\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-16T05:48:38+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-22T07:13:08+00:00\" \/>\n<meta name=\"author\" content=\"Emily Johnson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:site\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Emily Johnson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-implement-python-file-encryption-and-decryption\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-implement-python-file-encryption-and-decryption\/\"},\"author\":{\"name\":\"Emily Johnson\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/3b041b19cffc258705478ecfab895378\"},\"headline\":\"How to implement Python file encryption and decryption.\",\"datePublished\":\"2024-03-16T05:48:38+00:00\",\"dateModified\":\"2024-03-22T07:13:08+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-implement-python-file-encryption-and-decryption\/\"},\"wordCount\":84,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-implement-python-file-encryption-and-decryption\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/how-to-implement-python-file-encryption-and-decryption\/\",\"name\":\"How to implement Python file encryption and decryption. - 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Blog - Silicon Cloud","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/blog\/how-to-implement-python-file-encryption-and-decryption\/","og_locale":"en_US","og_type":"article","og_title":"How to implement Python file encryption and decryption.","og_description":"Encrypting and decrypting Python files can be achieved by using encryption algorithms and the corresponding keys. Here is a simple example: Encrypting files: from cryptography.fernet import Fernet def encrypt_file(file_path, key): with open(file_path, 'rb') as file: data = file.read() fernet = Fernet(key) encrypted_data = fernet.encrypt(data) with open(file_path, 'wb') as file: file.write(encrypted_data) # \u4f7f\u7528\u4e00\u4e2a\u968f\u673a\u751f\u6210\u7684\u5bc6\u94a5 key = Fernet.generate_key() [&hellip;]","og_url":"https:\/\/www.silicloud.com\/blog\/how-to-implement-python-file-encryption-and-decryption\/","og_site_name":"Blog - Silicon Cloud","article_publisher":"https:\/\/www.facebook.com\/SiliCloudGlobal\/","article_published_time":"2024-03-16T05:48:38+00:00","article_modified_time":"2024-03-22T07:13:08+00:00","author":"Emily Johnson","twitter_card":"summary_large_image","twitter_creator":"@SiliCloudGlobal","twitter_site":"@SiliCloudGlobal","twitter_misc":{"Written by":"Emily Johnson","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.silicloud.com\/blog\/how-to-implement-python-file-encryption-and-decryption\/#article","isPartOf":{"@id":"https:\/\/www.silicloud.com\/blog\/how-to-implement-python-file-encryption-and-decryption\/"},"author":{"name":"Emily Johnson","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/3b041b19cffc258705478ecfab895378"},"headline":"How to implement Python file encryption and decryption.","datePublished":"2024-03-16T05:48:38+00:00","dateModified":"2024-03-22T07:13:08+00:00","mainEntityOfPage":{"@id":"https:\/\/www.silicloud.com\/blog\/how-to-implement-python-file-encryption-and-decryption\/"},"wordCount":84,"commentCount":0,"publisher":{"@id":"https:\/\/www.silicloud.com\/blog\/#organization"},"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/blog\/how-to-implement-python-file-encryption-and-decryption\/","url":"https:\/\/www.silicloud.com\/blog\/how-to-implement-python-file-encryption-and-decryption\/","name":"How to implement Python file encryption and decryption. - 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