- Overview Press tab for submenu items
TCS is here to make a difference through technology.
Leading the way in innovation for over 55 years, we build greater futures for businesses across multiple industries and 55 countries.
-
Industries
-
Services
-
Products and Platforms
- Overview Press tab for submenu items
We deliver excellence and create value for customers and communities.
Our expert, committed team put our shared values into action – every day. With the best talent and the latest technology we help customers turn complexity into opportunities and create meaningful change.
-
About Us
-
Research & Innovation
-
Our Brand
- Overview Press tab for submenu items
Extraordinary expertise leads to remarkable results.
We share news, insights, analysis and research – tailored to your unique interests – to help you deepen your knowledge and impact.
-
Customer Stories
-
Perspectives
-
Global studies
-
Topics
- Overview Press tab for submenu items
Want to be a global change-maker? Join our team.
At TCS, we believe exceptional work begins with hiring, celebrating and nurturing the best people — from all walks of life.
-
India
-
Americas
-
Asia Pacific
-
Europe and UK
-
Middle East and Africa
Overview
India
expand here
Americas
expand here
Asia Pacific
expand here
Europe and UK
expand here
Middle East and Africa
expand here
- Overview Press tab for submenu items
Find the latest news about TCS in our Newsroom
Get access to a catalog of the latest news stories from across TCS. Discover our press releases, reports, and company announcements.
-
Press releases
-
News alerts
-
Analyst recognition
Recent recognitions
View all -
Events
Upcoming events
View all -
Media kit
- Overview Press tab for submenu items
TCS works hand in hand with world-leading investors.
Tata Consultancy Services LimitedNSE:TCSINR -
Management Commentary
-
Financials
-
News and Events
-
ESG
-
Resources
Overview
Management Commentary
expand here
Financials
expand here
News and Events
expand here
ESG
expand here
Resources
expand here
Top Results
Showing
10
01 - 07
You have these already downloaded
We have sent you a copy of the report to your email again.
Costs of Encrypted Computation: Why Fully homomorphic computations are Slow
Over the years, data privacy rules in several geographies have evolved and several countries are strictly mandating organizations to ensure data privacy regulation and enhance transparency on storage and processing of customers’ data. Non-compliance to these regulations is causing huge financial and credibility implications to organizations. Currently, 10% of data is covered under privacy regulations – this is expected to be 65% by 2023. Also, with organizations increasingly relying on cloud service providers (CSPs), the major challenge for CSPs is to protect privacy and confidentiality of the data while still being able to cater to users’ needs.
Fully homomorphic encryption (FHE), an evolving approach with mathematically provable security guarantees, enables computations on the encrypted data; thus, offering protection to the privacy of data. As privacy regulations are critical for both organizations as well as CSPs, FHE enables both of them to reduce their liabilities. While FHE solves the problem with adequate security guarantees, it incurs some cost in terms of computational complexity and memory requirement. As remarked in our previous white paper on this subject, FHE based computation is a million times slower than normal computation on plaintext. We now intuitively describe several fundamental aspects that hinder performance and how the computing model in FHE differs from the normal scenario. This can help explain the limitations in a simpler manner, which in turn can help users envision new applications in FHE domain.
Related reading
1/4
TCS Research
Dinesh Srivasthav Puvvada
Manoj Apte
Vigneswaran R
Leveraging AI-powered model for crypto money laundering detection
White Paper
|
29 Aug 2024
Opens in new tab
2/4
TCS Research
Narayanan Rajagopal
Ecosystem Modeling in a Digitally Simulated Electricity Market
White Paper
|
21 Mar 2024
Opens in new tab
3/4
TCS Research
Empowering Forest Landowners to Measure and Monetize Carbon Credits
Article
|
23 Jan 2024
Opens in new tab
4/4
TCS Research
A Journey from Software Development to Visual Intelligence Research
Article
|
19 Jan 2024
Opens in new tab
What’s on your mind?
We’re here to help! Tell us what you’re looking for and we’ll get you connected to the right people.
Looking for something else?
©2025 TATA Consultancy Services Limited
©2025 TATA Consultancy Services Limited
- Privacy Notice
- Cookie Policy
- Accessibility Declaration
- Disclaimer
- Security Policy
- California Notice at Collection
- Customize Cookies
