DNA fingerprinting does not require sequencing of DNA. It involves identification of differences in some specific regions (e.g., VNTR) in DNA.
Isolation of DNA from a sample such as blood, saliva, hair, skin cell of the person is the first step in DNA fingerprinting. Digestion of double-stranded DNA is done by restriction endonucleases. Hybridisation of single-stranded DNA with VNTR probe (DNA-DNA hybridisation) helps detect hybrid DNA fragments by autoradiography.