{"id":951,"date":"2025-05-30T04:07:50","date_gmt":"2025-05-30T04:07:50","guid":{"rendered":"https:\/\/www.woodcentral.com\/-\/peter\/?p=951"},"modified":"2026-05-24T11:28:31","modified_gmt":"2026-05-24T11:28:31","slug":"passwords-vs-passphrases","status":"publish","type":"post","link":"https:\/\/www.woodcentral.com\/-\/peter\/passwords-vs-passphrases\/","title":{"rendered":"Passwords vs. Passphrases"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Passphrases are increasingly favored over passwords because they offer stronger security and are easier to remember. A passphrase is typically a longer sequence of words or a phrase, like &#8220;Sunny Hill Coffee Shop 2023!&#8221; compared to a password like &#8220;Tr0ub4dor&amp;3x&#8221;. Here\u2019s why the shift is happening:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Enhanced Security<\/strong>: Passphrases are longer, often 12-20+ characters, making them harder to crack via brute-force attacks. A 2017 NIST study found that length is a critical factor in password strength, and passphrases naturally achieve this without complex character rules.<\/li>\n\n\n\n<li><strong>Memorability<\/strong>: Passphrases are easier to recall because they can be meaningful phrases or sentences, like &#8220;MyDogLoves2RunFast&#8221;. This reduces the need for writing them down or frequent resets, unlike complex passwords (e.g., &#8220;X9#kP2!v&#8221;).<\/li>\n\n\n\n<li><strong>Resistance to Common Attacks<\/strong>: Passphrases are less vulnerable to dictionary attacks or guessing, especially when they combine unrelated words or include numbers and symbols. For example, &#8220;BlueSky$RainyDay42&#8221; is far harder to crack than &#8220;password123&#8221;.<\/li>\n\n\n\n<li><strong>User-Friendly Guidelines<\/strong>: Updated NIST guidelines (2017 and 2020) emphasize length over complexity and encourage passphrases, as complex passwords (e.g., requiring special characters) often lead to predictable patterns or user frustration.<\/li>\n\n\n\n<li><strong>Adaptation to Modern Threats<\/strong>: With increasing computing power and sophisticated cracking tools, short passwords are more vulnerable. Passphrases, due to their length and variability, significantly increase the time and effort needed to break them.<\/li>\n\n\n\n<li><strong>Industry Adoption<\/strong>: Major platforms like Microsoft and Google now recommend passphrases in their security guidelines, driving broader adoption. For instance, Microsoft\u2019s 2020 security blog highlighted passphrases as a way to balance usability and security.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">To demonstrate how password length impacts security, we\u2019ll calculate the difficulty of cracking passwords of varying lengths, assuming they use a character set including uppercase letters (A-Z), lowercase letters (a-z), numbers (0-9), and common special characters (e.g., !@#$%^&amp;*()_+-=). This gives a total of 72 possible characters (26 uppercase + 26 lowercase + 10 digits + 10 special characters). The difficulty is measured by the number of possible combinations, which grows exponentially with length.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Character set: 72 characters (A-Z, a-z, 0-9, !@#$%^&amp;*()_+-=).<\/li>\n\n\n\n<li>Difficulty is based on the number of possible combinations (72^n, where n is the password length).<\/li>\n\n\n\n<li>The table will show passwords from 6 to 20 characters, including the number of combinations and an approximate time to crack at 1 billion guesses per second (a common benchmark for brute-force attacks).<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Password Length<\/th><th>Possible Combinations<\/th><th>Approx. Time to Crack (1B guesses\/sec)<\/th><\/tr><\/thead><tbody><tr><td>6 characters<\/td><td>72^6 \u2248 1.39 \u00d7 10^11<\/td><td>~2.3 minutes<\/td><\/tr><tr><td>8 characters<\/td><td>72^8 \u2248 7.21 \u00d7 10^14<\/td><td>~200 hours (8.3 days)<\/td><\/tr><tr><td>10 characters<\/td><td>72^10 \u2248 3.74 \u00d7 10^18<\/td><td>~119 years<\/td><\/tr><tr><td>12 characters<\/td><td>72^12 \u2248 1.94 \u00d7 10^22<\/td><td>~616,000 years<\/td><\/tr><tr><td>14 characters<\/td><td>72^14 \u2248 1.01 \u00d7 10^26<\/td><td>~32 million years<\/td><\/tr><tr><td>16 characters<\/td><td>72^16 \u2248 5.23 \u00d7 10^29<\/td><td>~16.6 billion years<\/td><\/tr><tr><td>18 characters<\/td><td>72^18 \u2248 2.71 \u00d7 10^33<\/td><td>~860 billion years<\/td><\/tr><tr><td>20 characters<\/td><td>72^20 \u2248 1.41 \u00d7 10^37<\/td><td>~44.6 trillion years<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Possible Combinations<\/strong>: Calculated as 72^n, where n is the password length.<\/li>\n\n\n\n<li><strong>Time to Crack<\/strong>: Assumes a brute-force attack at 1 billion (10^9) guesses per second, a realistic rate for modern hardware. Time is approximate and assumes no additional security measures (e.g., rate limiting, account lockouts).<\/li>\n\n\n\n<li><strong>Why Length Matters<\/strong>: Each additional character multiplies the number of combinations by 72, exponentially increasing the time required to crack the password.<\/li>\n\n\n\n<li><strong>Passphrase Context<\/strong>: A passphrase (e.g., &#8220;SunnyHillCoffee2023!&#8221; at 19 characters) would have even more combinations if spaces or additional symbols are included, further enhancing security.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The shift reflects a move toward practical, user-friendly security that counters evolving cyber threats while reducing user burden.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Passphrases are increasingly favored over passwords because they offer stronger security and are easier to remember. A passphrase is typically a longer sequence of words or a phrase, like &#8220;Sunny Hill Coffee Shop 2023!&#8221; compared to a password like &#8220;Tr0ub4dor&amp;3x&#8221;. Here\u2019s why the shift is happening: To demonstrate how password length impacts security, we\u2019ll calculate &#8230; <a title=\"Passwords vs. Passphrases\" class=\"read-more\" href=\"https:\/\/www.woodcentral.com\/-\/peter\/passwords-vs-passphrases\/\" aria-label=\"Read more about Passwords vs. Passphrases\">Read more<\/a><\/p>\n","protected":false},"author":7,"featured_media":989,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-951","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology"],"_links":{"self":[{"href":"https:\/\/www.woodcentral.com\/-\/peter\/wp-json\/wp\/v2\/posts\/951","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.woodcentral.com\/-\/peter\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.woodcentral.com\/-\/peter\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.woodcentral.com\/-\/peter\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.woodcentral.com\/-\/peter\/wp-json\/wp\/v2\/comments?post=951"}],"version-history":[{"count":0,"href":"https:\/\/www.woodcentral.com\/-\/peter\/wp-json\/wp\/v2\/posts\/951\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.woodcentral.com\/-\/peter\/wp-json\/wp\/v2\/media\/989"}],"wp:attachment":[{"href":"https:\/\/www.woodcentral.com\/-\/peter\/wp-json\/wp\/v2\/media?parent=951"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.woodcentral.com\/-\/peter\/wp-json\/wp\/v2\/categories?post=951"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.woodcentral.com\/-\/peter\/wp-json\/wp\/v2\/tags?post=951"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}