Welcome!

@CloudExpo Authors: Janakiram MSV, Kevin Benedict, Elizabeth White, Peter Silva, Craig Lowell

Blog Feed Post

Answering Common Cloud Security Questions from CIOs

Cloud Security Cloud Key Management Cloud Encryption CIO  infoq cloud security Answering Common Cloud Security Questions from CIOsfrom InfoQ.com: With the news stories of possible data breaches at enterprises like Target, and the current trend of companies migrating to cloud environments for the flexibility, scalability, agility, and cost-effectiveness they offer, CIOs have been asking hard questions about cloud security.

As CIO, protecting your data (and your users) is one of your key responsibilities. Whether you already have some cloud projects running or are starting your first cloud project, these questions and answers may provide you with solutions and introduce some new techniques.

InfoQ: Is the cloud safe?

Gilad: The cloud, by definition, is not more or less safe than your own data center. As an interesting note, the recent media storm around the NSA, which started as a “cloud computing security” story, has morphed into a more general discussion. It turns out the NSA is able to eavesdrop on physical servers in physical data centers and has actually done so at many of the world’s most secure organizations.

Today, cloud computing has been discovered as safe and effective for a wide range of projects and data types, ranging across most vertical industries and market niches. Regulated, sensitive areas such as finance, health, legal, retail or government – are all in various stages of going to the cloud..

However, just like certain security precautions are taken in the physical world, cloud security also entails taking the appropriate precautions.

InfoQ: How does migrating to the cloud change my risks?

Gilad: Migrating applications and data to the cloud obviously shifts some responsibilities from your own data center to the cloud provider. It is an act of outsourcing. As such, it always involves a shift of control. Taking back control involves procedures and technology.

Cloud computing may be seen – in some aspects – as revolutionary; yet in other aspects it is evolutionary. Any study of controlling risks should start out by understanding this point. Many of the things we have learned in data centers evolve naturally to the cloud. The need for proper procedures is unchanged. Many of the technologies are also evolving naturally.

You should therefore start by mapping out your current procedures and current security-related technologies, and see how they evolve to the cloud. In many cases you’ll see a correspondence.

You’ll find however, that some areas really are a revolution. Clouds do not have walls, so physical security does not map well from the data center to the cloud. Clouds involve employees of the cloud service provider, so you need to find ways to control people who do not work for you. These are significant changes, and they require new technology and new procedures.

InfoQ: What are the most important aspects of a cloud security policy?

Gilad: Continuing the themes of evolution and revolution, some aspects of cloud security will seem familiar. Firewalls, antivirus, and authentication – are evolving to the world of cloud computing. You will find that your cloud provider often offers you solutions in these areas; and traditional vendors are evolving their solutions as well.

Some aspects may change your current thinking. Since clouds do not have walls, and cloud employees could see your data – you must create metaphoric walls around your data. In cloud scenarios, data encryption is the recognized best practice for these new needs.

Incidentally, data encryption also helps with a traditional data center need – most data breaches happen from the inside, so the threat is not just from cloud employees. However, there is no question that the threat from cloud insiders has shined a new spotlight on the need for data encryption.

InfoQ: What is the best practice for encrypting cloud data?

Gilad: You should encrypt data at rest and in motion. Encrypting “in motion” is already well known to you – the standards of HTTPS/SSL and IPSEC apply equally well in the data center and in the cloud.

Encrypting “at rest” means that the data must be encrypted when it resides on a disk, in a database, on a file system, in storage, and of course if it is backed up. In the real world, people have not always done this in data centers – often relying on physical security as a replacement. In the cloud, physical security is no alternative – you must encrypt sensitive data.

This actually means data must be encrypted constantly as it is being written, and decrypted only when it is going to be used (i.e. just before a specific calculation, and only in memory). Standards such as Advanced Encryption Standard (AES) are commonly used for data encryption at rest.

InfoQ: Does cloud encryption singlehandedly protect data?

Gilad: If data is properly encrypted it is, in a sense, locked and cannot be used if it falls into the wrong hands. Unless, of course, those hands have a key.

Proper management of encryption keys is as important as the encryption itself. In fact, if you keep your encryption keys to yourself – you keep ownership of your data. This is an interesting and fundamental point – in the cloud you are outsourcing your infrastructure, but you can maintain ownership by keeping the encryption keys.

If encryption keys are stored alongside the data, any breach that discloses the data will also disclose the key to access it. If encryption keys are stored with cloud providers, they own your data.

Think of your data like a safe deposit box – would you leave your key with the banker? What if he gets robbed? What if his employees are paid to make copies of your key?

A best practice is split key encryption. With this method, your data is encrypted (e.g. with AES), and then the encryption key is split into parts. One part is managed with a cloud security provider and one part stays only with you. This way, only you control access to your data.

Even if your encrypted data is compromised, the perpetrators will not be able to decrypt it and it will be useless to them.

InfoQ: How can encryption keys be protected while they are in use?

Gilad: Keys in use in the cloud do not have to be vulnerable. They can be protected using homomorphic key management. This cryptographic technique gives the application access to the data store without ever exposing the master keys to the encryption – in an unencrypted state. It also ensures that if such (encrypted) keys are stolen, they can still never be used to access your data store

InfoQ: Is cloud data encryption in compliance with regulations?

Gilad: Regulations like Payment Card Industry Data Security Standard (PCI DSS), the Health Insurance Portability and Accountability Act (HIPAA), and many others (GLBA, FINRA, PIPEDA, et al) require or encourage cloud data to be properly encrypted and encryption keys to be properly managed. Some of these regulations even provide for a sort of “safe harbor” – that is, if your data is breached, but you can prove that you took the necessary steps to encrypt it and maintain control of the encryption keys, you may save the financial burden, the bureaucratic reporting requirements, and the damage to reputation involved with such an event.

InfoQ: Is cloud security cost-prohibitive and will it harm system performance?

Gilad: The cloud is often chosen for its lower operational overhead, and sometimes for actual dollar savings, compared with traditional data centers. Securing a cloud project does not need to negate the cloud’s ease of use nor make the project prohibitively expensive.

There are security solutions that require no hardware and, therefore, no large cap-ex investment. Pay-as-you-go business models make it easy to scale security up (or down) with the size of your project, as you add (or remove) virtual machines and data.

Performance can also be good. Modern cloud security virtual appliances and virtual agents – are optimized for cloud throughput and latency. You’ll be able to dial up performance as your cloud project scales up. To take a concrete example – data encryption – good solutions will include a capability to stream data as it is being encrypted (or decrypted), and do so inside your cloud account. Such approaches mean that virtual CPUs available in your cloud will be able to handle your performance needs with low latency.

InfoQ: Is there a way to protect cloud backups and disaster recovery?

Gilad: Data must be secured throughout its lifecycle. Properly encrypting data while it is in use, but then offering hackers unencrypted replicas as backups defeats the purpose of encrypting in the first place. You must encrypt and own the encryption keys for every point of the lifecycle of your information. Fortunately solutions that are built for the cloud do exist, and they should cover backups as well as primary copies.

InfoQ: What it more secure: a public cloud or a private cloud?

Gilad: Public and private clouds each have pros and cons in terms of ownership, control, cost, convenience and multi-tenancy. We have found that private clouds often require security controls similar to public ones. Use cases may involve users external to your company; or large “virtual” deployments with multiple internal projects, each with a need for strong security segregation. Your data can be properly encrypted, your keys can be properly managed, and you can be safe in all the major cloud scenarios: private, public, or hybrid.

InfoQ: If my data is in the cloud, my security is in the cloud, and my backup is in the cloud, what do I control?

Gilad: If you use encryption properly and maintain control of the encryption keys, you have replaced your physical walls with mathematical walls. You will own your data. Even though you do not control the physical resources, you maintain control of what they contain. This is one reason why encryption in the cloud is the best practice.

By properly using multiple regions or even multiple cloud providers, you can also ensure that you always have availability and access to your project and your data.

By combining such techniques, you do take back control. As CIO and owner of your data, you must always control your data – from beginning to end. Your control does not need to be sacrificed when you migrate to the cloud, though it may need to be managed differently.

 

 

 

The post Answering Common Cloud Security Questions from CIOs appeared first on Porticor Cloud Security.

Read the original blog entry...

More Stories By Gilad Parann-Nissany

Gilad Parann-Nissany, Founder and CEO at Porticor is a pioneer of Cloud Computing. He has built SaaS Clouds for medium and small enterprises at SAP (CTO Small Business); contributing to several SAP products and reaching more than 8 million users. Recently he has created a consumer Cloud at G.ho.st - a cloud operating system that delighted hundreds of thousands of users while providing browser-based and mobile access to data, people and a variety of cloud-based applications. He is now CEO of Porticor, a leader in Virtual Privacy and Cloud Security.

@CloudExpo Stories
Identity is in everything and customers are looking to their providers to ensure the security of their identities, transactions and data. With the increased reliance on cloud-based services, service providers must build security and trust into their offerings, adding value to customers and improving the user experience. Making identity, security and privacy easy for customers provides a unique advantage over the competition.
Qosmos has announced new milestones in the detection of encrypted traffic and in protocol signature coverage. Qosmos latest software can accurately classify traffic encrypted with SSL/TLS (e.g., Google, Facebook, WhatsApp), P2P traffic (e.g., BitTorrent, MuTorrent, Vuze), and Skype, while preserving the privacy of communication content. These new classification techniques mean that traffic optimization, policy enforcement, and user experience are largely unaffected by encryption. In respect wit...
SYS-CON Events announced today that StarNet Communications will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. StarNet Communications’ FastX is the industry first cloud-based remote X Windows emulator. Using standard Web browsers (FireFox, Chrome, Safari, etc.) users from around the world gain highly secure access to applications and data hosted on Linux-based servers in a central data center. ...
SYS-CON Events announced today that 910Telecom will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Housed in the classic Denver Gas & Electric Building, 910 15th St., 910Telecom is a carrier-neutral telecom hotel located in the heart of Denver. Adjacent to CenturyLink, AT&T, and Denver Main, 910Telecom offers connectivity to all major carriers, Internet service providers, Internet backbones and ...
Traditional on-premises data centers have long been the domain of modern data platforms like Apache Hadoop, meaning companies who build their business on public cloud were challenged to run Big Data processing and analytics at scale. But recent advancements in Hadoop performance, security, and most importantly cloud-native integrations, are giving organizations the ability to truly gain value from all their data. In his session at 19th Cloud Expo, David Tishgart, Director of Product Marketing ...
StarNet Communications Corp has announced the addition of three Secure Remote Desktop modules to its flagship X-Win32 PC X server. The new modules enable X-Win32 to safely tunnel the remote desktops from Linux and Unix servers to the user’s PC over encrypted SSH. Traditionally, users of PC X servers deploy the XDMCP protocol to display remote desktop environments such as the Gnome and KDE desktops on Linux servers and the CDE environment on Solaris Unix machines. XDMCP is used primarily on comp...
Almost two-thirds of companies either have or soon will have IoT as the backbone of their business in 2016. However, IoT is far more complex than most firms expected. How can you not get trapped in the pitfalls? In his session at @ThingsExpo, Tony Shan, a renowned visionary and thought leader, will introduce a holistic method of IoTification, which is the process of IoTifying the existing technology and business models to adopt and leverage IoT. He will drill down to the components in this fra...
DevOps at Cloud Expo – being held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA – announces that its Call for Papers is open. Born out of proven success in agile development, cloud computing, and process automation, DevOps is a macro trend you cannot afford to miss. From showcase success stories from early adopters and web-scale businesses, DevOps is expanding to organizations of all sizes, including the world's largest enterprises – and delivering real results. Am...
Internet of @ThingsExpo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 19th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The Internet of Things (IoT) is the most profound change in personal and enterprise IT since the creation of the Worldwide Web more than 20 years ago. All major researchers estimate there will be tens of billions devices - comp...
DevOps at Cloud Expo, taking place Nov 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 19th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The widespread success of cloud computing is driving the DevOps revolution in enterprise IT. Now as never before, development teams must communicate and collaborate in a dynamic, 24/7/365 environment. There is no time to wait for long dev...
As the world moves toward more DevOps and Microservices, application deployment to the cloud ought to become a lot simpler. The Microservices architecture, which is the basis of many new age distributed systems such as OpenStack, NetFlix and so on, is at the heart of Cloud Foundry - a complete developer-oriented Platform as a Service (PaaS) that is IaaS agnostic and supports vCloud, OpenStack and AWS. Serverless computing is revolutionizing computing. In his session at 19th Cloud Expo, Raghav...
Data is the fuel that drives the machine learning algorithmic engines and ultimately provides the business value. In his session at Cloud Expo, Ed Featherston, a director and senior enterprise architect at Collaborative Consulting, will discuss the key considerations around quality, volume, timeliness, and pedigree that must be dealt with in order to properly fuel that engine.
There is growing need for data-driven applications and the need for digital platforms to build these apps. In his session at 19th Cloud Expo, Muddu Sudhakar, VP and GM of Security & IoT at Splunk, will cover different PaaS solutions and Big Data platforms that are available to build applications. In addition, AI and machine learning are creating new requirements that developers need in the building of next-gen apps. The next-generation digital platforms have some of the past platform needs a...
19th Cloud Expo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy. Meanwhile, 94% of enterpri...
Enterprises have forever faced challenges surrounding the sharing of their intellectual property. Emerging cloud adoption has made it more compelling for enterprises to digitize their content, making them available over a wide variety of devices across the Internet. In his session at 19th Cloud Expo, Santosh Ahuja, Director of Architecture at Impiger Technologies, will introduce various mechanisms provided by cloud service providers today to manage and share digital content in a secure manner....
Fact: storage performance problems have only gotten more complicated, as applications not only have become largely virtualized, but also have moved to cloud-based infrastructures. Storage performance in virtualized environments isn’t just about IOPS anymore. Instead, you need to guarantee performance for individual VMs, helping applications maintain performance as the number of VMs continues to go up in real time. In his session at Cloud Expo, Dhiraj Sehgal, Product and Marketing at Tintri, wil...
SYS-CON Events announced today that Hitrons Solutions will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Hitrons Solutions Inc. is distributor in the North American market for unique products and services of small and medium-size businesses, including cloud services and solutions, SEO marketing platforms, and mobile applications.
SYS-CON Events announced today that eCube Systems, a leading provider of middleware modernization, integration, and management solutions, will exhibit at @DevOpsSummit at 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. eCube Systems offers a family of middleware evolution products and services that maximize return on technology investment by leveraging existing technical equity to meet evolving business needs. ...
SYS-CON Events announced today Telecom Reseller has been named “Media Sponsor” of SYS-CON's 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Telecom Reseller reports on Unified Communications, UCaaS, BPaaS for enterprise and SMBs. They report extensively on both customer premises based solutions such as IP-PBX as well as cloud based and hosted platforms.
Pulzze Systems was happy to participate in such a premier event and thankful to be receiving the winning investment and global network support from G-Startup Worldwide. It is an exciting time for Pulzze to showcase the effectiveness of innovative technologies and enable them to make the world smarter and better. The reputable contest is held to identify promising startups around the globe that are assured to change the world through their innovative products and disruptive technologies. There w...