A Survey on current key issues and status in cryptography

Internet applications are increased and growing at very fast. Owing towards the technological development, secured way of data transmission over the internet is becoming a questioning task. Intruders hack the data and use it for their beneficial purpose. To avoid these undesirable acts, cryptography is used to ensure security of the covert and secure message. Although encrypted data is difficult to decipher, it is relatively easy to detect. Strong encryption algorithms and proper key management techniques for the systems will helps in achieving confidentiality, authentication and integrity of data. In this research work various encryption (symmetric and asymmetric) algorithms have been studied. Literature Survey has been carried out for cryptography by incorporating key papers related to data encryption based on performance metrics (Security and Time constraints). From this, the observation and future work has been identified.