Selfsigned Certificate Generator ​

With the help of the Selfsigned Certificate Generator self signed certificates can be created. To create a self signed certificate at least the following data is needed:

• Private Key
• CSR

The private key is used to generate the signature. The data from the CSR like e.g. the CN are set in the certificate as Subject and as Issuer. If a parent certificate is specified, the subject data is used as the issuer. If a custom issuer is specified, this data is set as the issuer. This makes it possible to create your own certificate chain.

Private key ​

The generator supports the use of an own private key. Alternatively, the private key of a stored CSR can be used.

CSR ​

A CSR must be specified in PEM format. Alternatively, a saved CSR can be loaded. The data from the CSR will be transferred to the certificate afterwards.

Parent Certificate ​

A certificate in PEM format. The subject data will be used as the issuer in the generated certificate.

Runtime in days ​

The duration of the certificate is specified in days and can contain a value between 1 and 9999 days. The default is 365 days.

Serial number ​

A serial number can be specified or a random one can be generated. The serial number must be in hexadecimal format.

Subject Alternative Names ​

Multiple Subject Alternative Names can be stored in the self-signed certificate. If Subject Alternative Names are specified in the CSR, they are used. The specification of Subject Alternative Names is optional.

Extended Key Usage ​

The Extended Key Usage parameter can be used to specify the certificate's intended use. This parameter is optional and multiple values can be defined.

Custom Issuer ​

DN data that are used as the issuer.