The sub-command rand of OpenSSL can generate a random data file of a specified size.

For example, to generate a 10 KiB random file named rand.bin in the current directory:

1openssl rand -out ./rand.bin 10240

Now, you have a 10 KiB random seed file.

This chapter describes how to revoke certificates using OpenSSL command-line tools.

This chapter describes how to issue client-side certificates using OpenSSL command-line tools.

This chapter describes how to issue server-side certificates using OpenSSL command-line tools.

This chapter describes how to generate an intermediate CA with EC key, using OpenSSL command-line tools.