{"id":271,"date":"2024-03-12T16:03:09","date_gmt":"2024-03-12T16:03:09","guid":{"rendered":"https:\/\/offensivepython.com\/?p=271"},"modified":"2024-03-18T15:06:33","modified_gmt":"2024-03-18T15:06:33","slug":"obfuscation-with-enumerate-and-xor","status":"publish","type":"post","link":"https:\/\/offensivepython.com\/index.php\/2024\/03\/12\/obfuscation-with-enumerate-and-xor\/","title":{"rendered":"Obfuscation with enumerate and XOR"},"content":{"rendered":"\t\t
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\u00a0 \u00a0 \u00a0The enumerate function can be used to XOR characters of text with characters of a key. The example below shows how this can be done. In my example, my text length matches my key length.<\/p>\n

Example code:<\/span><\/p>\n

<\/p>\n

obfuscated = “”<\/strong>
clear_text = “”<\/strong>
text = “Something to obfuscate.”<\/strong>
key = “a key of some sort here”<\/strong><\/p>\n

# Enumerate our text to get the position of each character and the character itself
for index, char in enumerate(text):<\/strong><\/p>\n

\u00a0 \u00a0 # Use the ord function to obtain unicode codes for the text and key characters
<\/strong>\u00a0 \u00a0 # XOR those together, and then use the chr function to return the resultant character
\u00a0 \u00a0 # Keep appending characters to obfuscated variable
\u00a0 \u00a0 obfuscated += chr(ord(char) ^ ord(key[index]))<\/strong><\/p>\n

# Print a UTF-8 encoded result
print(“Obfuscated text is:”, obfuscated.encode())<\/strong><\/p>\n

# To undo it, enumerate the obfuscated text
for index, char in enumerate(obfuscated):<\/strong><\/p>\n

\u00a0 \u00a0 # Do the same steps as before, except this time append to clear_text variable
\u00a0 \u00a0 clear_text += chr(ord(char) ^ ord(key[index]))<\/strong><\/p>\n

# Print our clear text to the screen
print(“Original text was: “, clear_text)<\/strong><\/p>\n

Output:<\/span><\/p>\n

Obfuscated text is: b’2O\\x06\\x00\\rH\\x06\\x08GS\\x1b\\x02EO\\x11\\t\\x07\\x07C\\t\\x11\\x17K’
Original text was: Something to obfuscate.<\/p>\n

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\u00a0 \u00a0 \u00a0The enumerate function can be used to XOR characters of text with characters of a key. The example below shows how this can be done. In my example, my text length matches my key length. Example code: obfuscated = “”clear_text = “”text = “Something to obfuscate.”key = “a key of some sort here” […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-container-style":"default","site-container-layout":"default","site-sidebar-layout":"default","site-transparent-header":"default","disable-article-header":"default","disable-site-header":"default","disable-site-footer":"default","disable-content-area-spacing":"default","footnotes":""},"categories":[16],"tags":[31],"class_list":["post-271","post","type-post","status-publish","format-standard","hentry","category-obfuscation","tag-xor"],"_links":{"self":[{"href":"https:\/\/offensivepython.com\/index.php\/wp-json\/wp\/v2\/posts\/271","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/offensivepython.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/offensivepython.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/offensivepython.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/offensivepython.com\/index.php\/wp-json\/wp\/v2\/comments?post=271"}],"version-history":[{"count":31,"href":"https:\/\/offensivepython.com\/index.php\/wp-json\/wp\/v2\/posts\/271\/revisions"}],"predecessor-version":[{"id":327,"href":"https:\/\/offensivepython.com\/index.php\/wp-json\/wp\/v2\/posts\/271\/revisions\/327"}],"wp:attachment":[{"href":"https:\/\/offensivepython.com\/index.php\/wp-json\/wp\/v2\/media?parent=271"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/offensivepython.com\/index.php\/wp-json\/wp\/v2\/categories?post=271"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/offensivepython.com\/index.php\/wp-json\/wp\/v2\/tags?post=271"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}