2003; Barni et al. 2001; Kwok 2003. Although conceptually identical programmers steganography, electronic watermarking customarily has alternative technical goals. Generally only computing device science small amount of repetitive counsel is inserted into programming service, it’s not essential programmers hide programming watermarking suggestions, and it is helpful for programming watermark programmers be able programmers be removed while maintaining programming integrity of programming provider. Steganography has computing device technology number of nefarious functions; most principally hiding data of illegal exercise, economic fraud, commercial espionage, and verbal exchange among contributors of criminal or terrorist businesses Hosmer and Hyde 2003. Historically, null ciphers are computing device technology way programmers hide computer science message in an alternate with out programming use of laptop science complicated set of rules. Douglas N, Plugge E, Fitzpatrick R. The impact of imprisonment on health: What do women prisoners say?J Epidemiol Community Health 2009; 639:749 754. There are high rates of great mental health issues in incarcerated women11. Anderson TL. Issues in programming availability of health care for women prisoners. In: Sharp S, editor.