Bootgen has the capability of generating RSA keys. Alternatively, you can create keys using external tools such as OpenSSL. Bootgen creates the keys in the paths specified in the BIF file.
The figure shows the sample RSA private key file.
Figure 1. Sample RSA Private Key File
Note: The public component is usually referred with
the extension .pub. This can be extracted from the
private key that has both the public and private components. The private keys usually
have extension .pem. To generate public key
components use ppkfile/spkfile instead of pskfile/sskfile in the above example.
BIF Example
A sample BIF file, generate_pem.bif:
generate_pem:
{
[pskfile] psk0.pem
[sskfile] ssk0.pem
}Command
The command to generate keys is, as follows:
bootgen -generate_keys pem -arch zynqmp -image generate_pem.bif