https://wiki.quadbyte.de/index.php?action=history&feed=atom&title=Openssl_Commands 2026-09-18T00:39:35Z Versionsgeschichte dieser Seite in QBWiki MediaWiki 1.32.0 https://wiki.quadbyte.de/index.php?title=Openssl_Commands&diff=252&oldid=prev 2019-05-05T19:02:03Z

<p>Die Seite wurde neu angelegt: „General OpenSSL Commands These commands allow you to generate CSRs, Certificates, Private Keys and do other miscellaneous tasks. Generate a new private key a…“</p> <p><b>Neue Seite</b></p><div>General OpenSSL Commands<br /> <br /> These commands allow you to generate CSRs, Certificates, Private Keys and do other miscellaneous tasks.<br /> <br /> Generate a new private key and Certificate Signing Request<br /> <br /> openssl req -out CSR.csr -new -newkey rsa:2048 -nodes -keyout privateKey.key<br /> <br /> Generate a self-signed certificate (see How to Create and Install an Apache Self Signed Certificate for more info)<br /> <br /> openssl req -x509 -sha256 -nodes -days 365 -newkey rsa:2048 -keyout privateKey.key -out certificate.crt<br /> <br /> Generate a certificate signing request (CSR) for an existing private key<br /> <br /> openssl req -out CSR.csr -key privateKey.key -new<br /> <br /> Generate a certificate signing request based on an existing certificate<br /> <br /> openssl x509 -x509toreq -in certificate.crt -out CSR.csr -signkey privateKey.key<br /> <br /> Remove a passphrase from a private key<br /> <br /> openssl rsa -in privateKey.pem -out newPrivateKey.pem<br /> <br /> Checking Using OpenSSL<br /> <br /> If you need to check the information within a Certificate, CSR or Private Key, use these commands. You can also check CSRs and check certificates using our online tools.<br /> <br /> Check a Certificate Signing Request (CSR)<br /> <br /> openssl req -text -noout -verify -in CSR.csr<br /> <br /> Check a private key<br /> <br /> openssl rsa -in privateKey.key -check<br /> <br /> Check a certificate<br /> <br /> openssl x509 -in certificate.crt -text -noout<br /> <br /> Check a PKCS#12 file (.pfx or .p12)<br /> <br /> openssl pkcs12 -info -in keyStore.p12<br /> <br /> <br /> Debugging Using OpenSSL<br /> <br /> If you are receiving an error that the private doesn't match the certificate or that a certificate that you installed to a site is not trusted, try one of these commands. If you are trying to verify that an SSL certificate is installed correctly, be sure to check out the SSL Checker.<br /> <br /> Check an MD5 hash of the public key to ensure that it matches with what is in a CSR or private key<br /> openssl x509 -noout -modulus -in certificate.crt | openssl md5<br /> <br /> openssl rsa -noout -modulus -in privateKey.key | openssl md5<br /> <br /> openssl req -noout -modulus -in CSR.csr | openssl md5<br /> <br /> Check an SSL connection. All the certificates (including Intermediates) should be displayed<br /> <br /> openssl s_client -connect www.paypal.com:443<br /> <br /> Converting Using OpenSSL<br /> <br /> These commands allow you to convert certificates and keys to different formats to make them compatible with specific types of servers or software. For example, you can convert a normal PEM file that would work with Apache to a PFX (PKCS#12) file and use it with Tomcat or IIS. Use our SSL Converter to convert certificates without messing with OpenSSL.<br /> <br /> Convert a DER file (.crt .cer .der) to PEM<br /> <br /> openssl x509 -inform der -in certificate.cer -out certificate.pem<br /> <br /> Convert a PEM file to DER<br /> <br /> openssl x509 -outform der -in certificate.pem -out certificate.der<br /> <br /> Convert a PKCS#12 file (.pfx .p12) containing a private key and certificates to PEM<br /> <br /> openssl pkcs12 -in keyStore.pfx -out keyStore.pem -nodes<br /> <br /> <br /> You can add -nocerts to only output the private key or add -nokeys to only output the certificates.<br /> <br /> Convert a PEM certificate file and a private key to PKCS#12 (.pfx .p12)<br /> openssl pkcs12 -export -out certificate.pfx -inkey privateKey.key -in certificate.crt -certfile CACert.crt</div>

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