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Title | amccormack.net |
Description | amccormack.net Things I’ve learned and suspect I’ll forget. Solving "redacted-puzzle" From OOOverflow’s 2019 DEF CON Prequalifiers The Redacted-Puzzle cha |
Keywords | N/A |
WebSite | amccormack.net |
Host IP | 13.225.223.26 |
Location | United States |
Site | Rank |
US$790,059
Last updated: 2023-05-12 11:29:00
amccormack.net has Semrush global rank of 13,396,862. amccormack.net has an estimated worth of US$ 790,059, based on its estimated Ads revenue. amccormack.net receives approximately 91,161 unique visitors each day. Its web server is located in United States, with IP address 13.225.223.26. According to SiteAdvisor, amccormack.net is safe to visit. |
Purchase/Sale Value | US$790,059 |
Daily Ads Revenue | US$730 |
Monthly Ads Revenue | US$21,879 |
Yearly Ads Revenue | US$262,543 |
Daily Unique Visitors | 6,078 |
Note: All traffic and earnings values are estimates. |
Host | Type | TTL | Data |
amccormack.net. | A | 299 | IP: 13.225.223.26 |
amccormack.net. | A | 299 | IP: 13.225.223.36 |
amccormack.net. | A | 299 | IP: 13.225.223.121 |
amccormack.net. | A | 299 | IP: 13.225.223.80 |
amccormack.net. | NS | 86400 | NS Record: ns-1131.awsdns-13.org. |
amccormack.net. | NS | 86400 | NS Record: ns-1964.awsdns-53.co.uk. |
amccormack.net. | NS | 86400 | NS Record: ns-374.awsdns-46.com. |
amccormack.net. | NS | 86400 | NS Record: ns-536.awsdns-03.net. |
amccormack.net. | MX | 3600 | MX Record: 5 alt2.aspmx.l.google.com. |
amccormack.net. | MX | 3600 | MX Record: 1 aspmx.l.google.com. |
amccormack.net. | MX | 3600 | MX Record: 10 atl3.aspmx.l.google.com. |
amccormack.net. | MX | 3600 | MX Record: 10 atl4.aspmx.l.google.com. |
amccormack.net. | MX | 3600 | MX Record: 5 alt1.aspmx.l.google.com. |
amccormack.net. | TXT | 300 | TXT Record: v=spf1 include:_spf.google.com ~all |
amccormack.net Things I’ve learned and suspect I’ll forget. Solving "redacted-puzzle" From OOOverflow’s 2019 DEF CON Prequalifiers The Redacted-Puzzle challenge The challenge prompt says "Everything you need is in this file." and provides a gif. The gif appears all black so I opened it up in a Jupyter notebook with the Pillow library. I first looked at the number of frames and if the image was animated: from PIL import Image im = Image . open( ’redacted-puzzle.gif’ ) print im . is_animated, im . n_frames True 35 To get a quick idea of the variety between the frames, I hashed each individual frame: import hashlib ba = [] for frame in range (im . n_frames): im . seek(frame) ba . append(im . tobytes()) print hashlib . md5(ba[ -1 ]) . hexdigest(), len (ba[ -1 ]), hashlib . md5( ’’ . join( chr (x) for x in im . getpalette())) . hexdigest() e176bcf3e8b281e91836b1cb2d430405 921600 60a44dc3832c9d6881f7d93298eeb341 acaac3e8a8dbe0531c8dd20146eb66af 921600 60a44dc3832c9d6881f7d93298eeb341 |
HTTP/1.1 301 Moved Permanently Server: CloudFront Date: Wed, 15 Dec 2021 08:51:03 GMT Content-Type: text/html Content-Length: 183 Connection: keep-alive Location: https://amccormack.net/ X-Cache: Redirect from cloudfront Via: 1.1 2370a7eb0d75907a0fd422bb3f42bcb6.cloudfront.net (CloudFront) X-Amz-Cf-Pop: JFK51-C1 X-Amz-Cf-Id: _rhCddkm-66CVgxEJKf6CIFiUNNWbgQLO6T_V5kizBMeQki4bdk_FA== HTTP/2 200 content-type: text/html content-length: 23066 date: Wed, 15 Dec 2021 08:51:04 GMT last-modified: Wed, 07 Oct 2020 21:51:58 GMT etag: "f62a50ec932510afab938e14a2462717" server: AmazonS3 vary: Accept-Encoding x-cache: Miss from cloudfront via: 1.1 cd63f8907abcdddac217d30e29b586a0.cloudfront.net (CloudFront) x-amz-cf-pop: JFK51-C1 x-amz-cf-id: cGxdvf0gspvE57WOt15_tMLNUzjklpTukw84rkYCvn_0AbAu2ZVXmA== |
Domain Name: AMCCORMACK.NET Registry Domain ID: 1651606466_DOMAIN_NET-VRSN Registrar WHOIS Server: whois.registrar.amazon.com Registrar URL: http://registrar.amazon.com Updated Date: 2021-03-15T23:13:38Z Creation Date: 2011-04-18T19:41:22Z Registry Expiry Date: 2022-04-18T19:41:22Z Registrar: Amazon Registrar, Inc. Registrar IANA ID: 468 Registrar Abuse Contact Email: abuse@amazonaws.com Registrar Abuse Contact Phone: +1.2067406200 Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited Name Server: NS-1131.AWSDNS-13.ORG Name Server: NS-1964.AWSDNS-53.CO.UK Name Server: NS-374.AWSDNS-46.COM Name Server: NS-536.AWSDNS-03.NET DNSSEC: unsigned >>> Last update of whois database: 2021-12-15T08:35:42Z <<< |