qemu-img \
create \
-f luks \
--object secret,id=LuksDemo.img_encrypt0,file=/path/to/secretFile \
-o key-secret=LuksDemo.img_encrypt0,cipher-alg=serpent-256,cipher-mode=cbc,hash-alg=sha256,ivgen-alg=plain64,ivgen-hash-alg=sha256 \
/var/lib/libvirt/images/LuksDemo.img \
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