This report is the result of a feasibility study ordered by the swedish procurment agency FMV with the intention to provide input and direction for further research in the area of transmission security, mainly in IP networks. Transmission security is one of the three elements of signal protection and shares with the other elements, text protection and signal control, the task to reduce the effect of electronic warfare against signaling. As the communication technology has developed, the need for transmission security in civil society has increased. This has lead to an increased intrerest in research and development of methods that are included in the concept of transmission security. To get an overview of the state of the art and find new research areas, an open broad literature survey was conducted. Examples of research areas are medicine, e-health and the Internet of Things. The report begins by outlining the concept of transmission security. It then describes how the process of finding relevant papers was performed. The search was made in the meta-database Scopus, which itself contains a number of well-known databases. In total over 25 000 papers were captured by our chosen keywords. To get an overview of the results the papers were clustered in different research areas. The authors have then studied selected clusters by reading the summaries of the papers included. The result of the study is a discussion about the selected papers and their connection to the transmission security identified categories. The report concludes with a recommendation for further work. As the demand for transmission security is highly dependent on the communication systems and scenarios, the authors recommend that relevant use cases are identified by the Swedish Armed Forces and/or FMV in cooperation with FOI. Then relevant research areas and related papers can be studied further to determine whether they propose a technical solution in the manner indicated in the summaries.