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Cryptography means secret writing. When the data are transferred from sender to receiver over the... more Cryptography means secret writing. When the data are transferred from sender to receiver over the network through information channel any third parties can intensively read and may modify the data. Here in this paper we elaborate how cryptography will help to secure the data between authorized people. In order to transfer secure data the data will convert to unreadable form before transmitting to the channel. The cryptography applications range have been expanded a lot in the modern area after the development of communication means; cryptography is essentially required to ensure that data are protected against penetrations and to prevent espionage. Also, cryptography is a powerful mean in securing e-commerce. This paper focuses on analysing different types of cryptography, concept of encryption and decryption, a brief introduction to cryptography techniques. If we are taking about security of information then following services come in mind i.e. Confidentiality (privacy of information), Authentication, Integrity (has not been altered) This paper also provides a detailed description of cryptography techniques in Symmetric encryption and a public key cryptography algorithm RSA in Asymmetric encryption.
Cryptography means secret writing. When the data are transferred from sender to receiver over the... more Cryptography means secret writing. When the data are transferred from sender to receiver over the network through information channel any third parties can intensively read and may modify the data. Here in this paper we elaborate how cryptography will help to secure the data between authorized people. In order to transfer secure data the data will convert to unreadable form before transmitting to the channel. The cryptography applications range have been expanded a lot in the modern area after the development of communication means; cryptography is essentially required to ensure that data are protected against penetrations and to prevent espionage. Also, cryptography is a powerful mean in securing e-commerce. This paper focuses on analysing different types of cryptography, concept of encryption and decryption, a brief introduction to cryptography techniques. If we are taking about security of information then following services come in mind i.e. Confidentiality (privacy of information), Authentication, Integrity (has not been altered) This paper also provides a detailed description of cryptography techniques in Symmetric encryption and a public key cryptography algorithm RSA in Asymmetric encryption.