The https://www.openbsd.org/crypto.html page contains a link that is bad because www.efc.ca does not resolve.
Link URL: http://www.efc.ca/pages/doc/crypto-export.html Link Text: some research to test the cryptographic laws The last copy from the Internet Archive Wayback Machine is from last year on Nov 8, 2022 via https://web.archive.org/web/20221108232555/http://www.efc.ca/pages/doc/crypto-export.html
