Meta Header Encryption - Meta Header Encryption - 2026.1 English - UG1283

In the Versal AI Edge Series Gen 2and Versal Prime Series Gen 2 device, Bootgen supports encryption of the meta header when explicitly configured using the metaheader attribute in the BIF file. The meta header encryption secures all image headers includes the Image Header Table (IHT).

Example BIF Snippet for Meta Header Encryption:

metaheader
{
    encryption = aes,
    keysrc = bbram_red_key,
    aeskeyfile = headerkey.nky,
}

image
{
    {type=bootloader, encryption=aes, keysrc=bbram_red_key, aeskeyfile=bootloader_key.nky, file=plm.elf}
    {type=cdo, file=ps_data.cdo}
    {core=a72-0, exception_level=el-3, file=secure_app.elf}
}