openssl

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openssl [2020/10/29 14:10] – created tmaieropenssl [2021/03/12 12:53] (current) tmaier
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 ===== CRLs ===== ===== CRLs =====
 [[https://langui.sh/2010/01/10/parsing-a-crl-with-openssl/|Parsing a CRL]]: ''openssl crl -inform DER -text -noout -in mycrl.crl'' [[https://langui.sh/2010/01/10/parsing-a-crl-with-openssl/|Parsing a CRL]]: ''openssl crl -inform DER -text -noout -in mycrl.crl''
 +
 +===== PKCS12 =====
 +Reading a PKCS12 file: ''openssl pkcs12 -info -in some_file.p12''
 +
 +===== X.509 =====
 +  * Parsing a PEM file: ''openssl x509 -text -in some_file -inform pem''
 +  * Download and parse certificate: ''echo | openssl s_client -starttls=smtp -connect some_domain.tld:25 2>/dev/null | openssl x509 -text''
 +
 +===== Connect with TLS =====
 +  * Connect to SMTP: ''openssl s_client -connect some_domain.tld:587 -starttls smtp''
 +  * Download certificate (HTTPS w/o SNI): ''openssl s_client -showcerts -connect some_domain.tld:443 </dev/null''
 +  * Download certificate (HTTPS w/ SNI): ''openssl s_client -showcerts -servername some_domain.tld -connect some_domain.tld:443 </dev/null''
 +
  • openssl.1603977039.txt.gz
  • Last modified: 2020/12/29 02:09
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