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< h1 id = "dev_page_title" > Using self-signed certificates< / h1 >
< div id = "dev_page_content" > < p > Upload your certificate using the < em > certificate< / em > parameter in the < a href = "/bots/api#setwebhook" > setWebhook< / a > method. The certificate supplied should be < strong > PEM encoded< / strong > (ASCII BASE64), the pem file should only contain the < strong > public key< / strong > (including BEGIN and END portions). When converting from a bundle format, please split the file to only include the public key.< / p >
< h3 > < a class = "anchor" name = "generating-a-self-signed-certificate-pair-pem" href = "#generating-a-self-signed-certificate-pair-pem" > < i class = "anchor-icon" > < / i > < / a > Generating a self-signed certificate pair (PEM):< / h3 >
< h4 > < a class = "anchor" name = "openssl" href = "#openssl" > < i class = "anchor-icon" > < / i > < / a > Openssl< / h4 >
< blockquote >
< p > Windows binaries for Openssl are available online< / p >
< / blockquote >
< p > < code > openssl req -newkey rsa:2048 -sha256 -nodes -keyout YOURPRIVATE.key -x509 -days 365 -out YOURPUBLIC.pem -subj " /C=US/ST=New York/L=Brooklyn/O=Example Brooklyn Company/CN=YOURDOMAIN.EXAMPLE" < / code > < / p >
< p > YOURPUBLIC.pem has to be used as input for setting the self-signed webhook.< / p >
< p > You can inspect the generated certificate with:< br > < code > openssl x509 -text -noout -in YOURPUBLIC.pem< / code > < / p >
< p > Converting from a previously generated DER:< br > < code > openssl x509 -inform der -in YOURDER.der -out YOURPEM.pem< / code > < / p >
< p > Converting from a previously generated PKCS12:< br > < code > openssl pkcs12 -in YOURPKCS.p12 -out YOURPEM.pem< / code > < / p >
< blockquote >
< p > More information: https://www.openssl.org/< / p >
< / blockquote >
< h4 > < a class = "anchor" name = "java-keystore" href = "#java-keystore" > < i class = "anchor-icon" > < / i > < / a > Java keystore< / h4 >
< p > Generate self-signed JKS:< br > < code > keytool -genkey -keyalg RSA -alias YOURDOMAIN.EXAMPLE -keystore YOURJKS.jks -storepass YOURPASSWORD -validity 360 -keysize 2048< / code > < / p >
< p > Converting JKS to pkcs12 (intermediate step for conversion to PEM):< br > < code > keytool -importkeystore -srckeystore YOURJKS.jks -destkeystore YOURPKCS.p12 -srcstoretype jks -deststoretype pkcs12< / code > < / p >
< p > Convert PKCS12 to PEM (requires openssl):< br > < code > openssl pkcs12 -in YOURPKCS.p12 -out YOURPEM.pem< / code > < / p >
< blockquote >
< p > More information: https://docs.oracle.com< / p >
< / blockquote >
< h4 > < a class = "anchor" name = "windows" href = "#windows" > < i class = "anchor-icon" > < / i > < / a > Windows< / h4 >
< p > Creating a self-signed certificate using Windows native utilities is also possible, although OpenSSL binaries for Windows are available online.< / p >
< p > On the commandline:< br > < code > certreq -new TEMPLATE.txt RequestFileOut< / code > < / p >
< p > TEMPLATE.txt example file:< / p >
< pre > < code > [NewRequest]
; At least one value must be set in this section
Subject = " CN=DOMAIN.EXAMPLE"
KeyLength = 2048
KeyAlgorithm = RSA
HashAlgorithm = sha256
;MachineKeySet = true
RequestType = Cert
UseExistingKeySet=false ;generates a new private key (for export)
Exportable = true ;makes the private key exportable with the PFX< / code > < / pre >
< p > A self-signed certificate will be generated and installed, to view the certificate:< br > < code > certutil -store -user my< / code > < / p >
< p > To export in DER format (intermediate step for conversion to PEM)< br > < code > certutil -user -store -split my SERIALNUMBER YOURDER.crt< / code > < / p >
< p > Converting to PEM (used for setting the webhook)< br > < code > certutil -encode YOURDER.crt YOURPEM.cer< / code > < / p >
< p > To delete a certificate from your store:< br > < code > certutil -delstore -user my SERIALNUMBER< / code > (from view)< / p >
< p > To export in PFX(PKCS12) format< br > < code > certutil -exportpfx -user YOURDOMAIN.EXAMPLE YOURPKCS.pfx NoChain< / code > < / p >
< blockquote >
< p > More information: https://technet.microsoft.com< / p >
< / blockquote >
< p > Converting YOURPKCS.pfx to PEM including the private key is best done with OpenSSL:< br > < code > openssl pkcs12 -in YOURPKCS.pfx -out YOURPEM.cer< / code > < / p >
< p > Remember that only the public key is needed as input for the self-signed webhook certificate parameter. certmgr.msc can also be used as a GUI to export the public part of self-signed certificates to PEM.< / p >
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