Self-signed certificates and keyUsage extension. Must non-CA, self-signed certificates have the "keyCertSign" bit set in the keyUsage extension to be "valid?" If I don't have the bit set and execute

References¶.;; #openssl ca -policy policy_anything -config -out windows_server.crt -extensions some_ext -extfile some_extensions.txt -infiles cert_request.csr provided, you have created a file named "some_extensions.txt" on the same directory and it has got the required extensions the windows box required. id-ce-keyUsage This extension indicates the purpose for which the certified public key is used. This extension may, at the option of the certificate issuer, be either critical or non-critical. >> OpenSSL has Key Encipherment (e0) as a Key Usage, while a certificate >> generated through MS Certificate Server has Key Encipherment (a0). > > What do you get in the keyUsage extension when you do: > > openssl x509 -in cert.pem -noout -text > openssl shows "Key Encipherment" for both certifcates. Is the e0/a0 issue a MS undocumented "feature"? Type openssl req -new -key privkey.pem -out request.csr This command generates a CSR in the PEM format in your current working directory. When you are prompted for the x509 Common Name attribute information, type your fully-qualified domain name (FQDN). Use other information as appropriate.

Mar 03, 2015 · openssl req -sha256 -new -x509 -days 1826 -key rootca.key -out rootca.crt TRUE keyUsage = critical,any subjectKeyIdentifier = hash authorityKeyIdentifier = keyid

[ usr_cert ] basicConstraints=CA:FALSE nsCertType = client, server, email keyUsage = nonRepudiation, digitalSignature, keyEncipherment extendedKeyUsage = serverAuth, clientAuth, codeSigning, emailProtection nsComment = "OpenSSL Generated Certificate" subjectKeyIdentifier=hash authorityKeyIdentifier=keyid,issuer

May 27, 2020 · [root@centos8-1 certs]# cat client_cert_ext.cnf basicConstraints = CA:FALSE nsCertType = client, email nsComment = "OpenSSL Generated Client Certificate" subjectKeyIdentifier = hash authorityKeyIdentifier = keyid,issuer keyUsage = critical, nonRepudiation, digitalSignature, keyEncipherment extendedKeyUsage = clientAuth, emailProtection

Jun 29, 2017 · Certificates can be converted to other formats with OpenSSL. Sometimes, an intermediate step is required. The most common conversions, from DER to PEM and vice-versa, can be done using the following commands: $ openssl x509 -in cert.pem -outform der -out cert.der. and $ openssl x509 -in cert.der -inform der -outform pem -out cert.pem Sep 25, 2018 · keyUsage=critical,digitalSignature,keyEncipherment extendedKeyUsage=clientAuth,serverAuth. Procedure Once the required OpenSSL configuration has been completed, a new CSR must be generated and the request signed. The example below generates a self-signed certificate from a new private key (server.key). The /etc/ssl/openssl.cnf file This is the general configuration file for OpenSSL program where you can configure expiration date of your keys, the name of your organization, the address etc. The parameters you may change will be in the [ CA_default ] and especially the [ req_distinguished_name ] sections. the output of openssl_x509_parse gives an array with following for the purposes: each new array ([purposes][1], [purposes][2] for example) is a new purpose check I compared this output with the output of the command # openssl x509 -purpose -in the result i got was that [purposes][x][2] quite obviously is the name of the purpose openssl req -x509 -new -nodes -key ca.key -subj "/CN=rootca" -days 10000 -out ca.crt -x509 はOutput a self-signed certificate instead of a certificate request. -nodes はDo not encrypt private keys.(不要? The OpenSSL commands are a bit opaque and it's going to take me a few days or weeks to figure out this again, and perhaps someone is more familiar with OpenSSL than I am (not familiar at all, learned this once then forgot) and knows how to do this better.