1. Digital Signature;Pooja Y.;International Journal of Scientific Research in Computer Science, Engineering and Information Technology (IJSRCSEIT),2018
2. Electronic Authentication in the U.S. Federal Government Bill Burr, Manager Security Technology, National Institute of Standards and technology, Asia PKI Forum, Tokyo, February 2005 http://asia-pkiforum.org/feb_tokyo/NIST_Burr.pdf
3. ETSI. Electronic Signatures and Infrastructures (ESI); CMS Advanced Electronic Signatures (CAdES). ETSI Technical Specification TS, 2008.
4. Kerry Cameron F. and Patrick D. Gallagher. "Digital signature standard (DSS)." FIPS PUB (2013): 186-4. http://people.csail.mit.edu/alinush/6.857-spring-2015/papers/dsa.pdf
5. Buccafurri Francesco Gianluca Caminiti and Gianluca Lax. "Fortifying the dalì attack on digital signature." Proceedings of the 2nd International Conference on Security of Information and Networks. 2009.