Transmission of data between the users in the network is an important aspect of today, user of the network wants to share their information between other users of secured data transmission. They were many mode of transaction o data were done, but secured level of data transaction is an important aspect what everyone wants. Secret data transmission is still major problem in network. Embedding the secret information is an upgrading technology for sharing secret data, embedding process cryptography method plays a key role. Effective embedding of secret data by using visual cryptography helps a lot for secret data transmission. This paper provides the survey of various cryptographic methods and its effectiveness for secure transmission over network.