Cellcrypt releases encrypted voice call app for the iPhone

The application encrypts voice traffic twice to prevent snooping

Cellcrypt released a version of its voice encryption software for Apple's iPhone on Tuesday, adding to its portfolio of software to prevent eavesdropping on calls.

The product, called Cellcrypt Mobile for iPhone, works with iOS4 on Apple's iPhone 3GS and iPhone 4. It is one of two voice encryption applications listed in the App Store, although there are other voice encryption applications for the iPhone platform from vendors such as Goldlock and SecurStar.

The iPhone application works in the same way as Cellcrypt's products for other platforms. It's a VOIP (voice over IP) application that uses either Wi-Fi or an operator's data channel on either GPRS, EDGE, 3G or satellite networks to transmit voice.

Both the caller and the recipient must have Cellcrypt installed in order to encrypt the call. The iPhone version is interoperable with other Cellcrypt software for platforms including Symbian, Android and Blackberry, said Ian Meakin, Cellcrypt's vice president of marketing.

Cellcrypt uses public key cryptography, and each phone running its software has its own private key stored only on the device. When a call is initiated, the two devices exchange a secret session key, which is then erased when the call ends.

Voice data is then double encrypted first using a 256-bit RC4 algorithm and then again with a 256-bit AES algorithm, Meakin said. The heavy encryption can cause up to a 1.5 second delay using the slower GPRS networks, varying somewhat depending on available bandwidth and network traffic.

Over Wi-Fi, latency can be as low as 150 milliseconds, which is unnoticeable to callers. Meakin said tests have shown that latency has been less on the iPhone due to its speedy processors.

Cellcrypt Mobile meets the U.S. government's 140-2 Federal Information Processing Standards, which means it can be used by government employees for certain classifications of information.

Cellcrypt recently raised the price of an annual subscription from US$1,500 to $1,600. With that change, Cellcrypt is allowing users to change devices without requiring customers to buy another license. Users can now also install Cellcrypt's software on another device, Meakin said.

Send news tips and comments to jeremy_kirk@idg.com

Join the CSO newsletter!

Error: Please check your email address.

Tags Cellcryptsecuritymobile securityencryptiondata protection

More about AES EnvironmentalAppleGErStarSymbian

Show Comments

Featured Whitepapers

Editor's Recommendations

Solution Centres

Stories by Jeremy Kirk

Latest Videos

  • 150x50

    CSO Webinar: The Human Factor - Your people are your biggest security weakness

    ​Speakers: David Lacey, Researcher and former CISO Royal Mail David Turner - Global Risk Management Expert Mark Guntrip - Group Manager, Email Protection, Proofpoint

    Play Video

  • 150x50

    CSO Webinar: Current ransomware defences are failing – but machine learning can drive a more proactive solution

    Speakers • Ty Miller, Director, Threat Intelligence • Mark Gregory, Leader, Network Engineering Research Group, RMIT • Jeff Lanza, Retired FBI Agent (USA) • Andy Solterbeck, VP Asia Pacific, Cylance • David Braue, CSO MC/Moderator What to expect: ​Hear from industry experts on the local and global ransomware threat landscape. Explore a new approach to dealing with ransomware using machine-learning techniques and by thinking about the problem in a fundamentally different way. Apply techniques for gathering insight into ransomware behaviour and find out what elements must go into a truly effective ransomware defence. Get a first-hand look at how ransomware actually works in practice, and how machine-learning techniques can pick up on its activities long before your employees do.

    Play Video

  • 150x50

    CSO Webinar: Get real about metadata to avoid a false sense of security

    Speakers: • Anthony Caruana – CSO MC and moderator • Ian Farquhar, Worldwide Virtual Security Team Lead, Gigamon • John Lindsay, Former CTO, iiNet • Skeeve Stevens, Futurist, Future Sumo • David Vaile - Vice chair of APF, Co-Convenor of the Cyberspace Law And Policy Community, UNSW Law Faculty This webinar covers: - A 101 on metadata - what it is and how to use it - Insight into a typical attack, what happens and what we would find when looking into the metadata - How to collect metadata, use this to detect attacks and get greater insight into how you can use this to protect your organisation - Learn how much raw data and metadata to retain and how long for - Get a reality check on how you're using your metadata and if this is enough to secure your organisation

    Play Video

  • 150x50

    CSO Webinar: How banking trojans work and how you can stop them

    CSO Webinar: How banking trojans work and how you can stop them Featuring: • John Baird, Director of Global Technology Production, Deutsche Bank • Samantha Macleod, GM Cyber Security, ME Bank • Sherrod DeGrippo, Director of Emerging Threats, Proofpoint (USA)

    Play Video

  • 150x50

    IDG Live Webinar:The right collaboration strategy will help your business take flight

    Speakers - Mike Harris, Engineering Services Manager, Jetstar - Christopher Johnson, IT Director APAC, 20th Century Fox - Brent Maxwell, Director of Information Systems, THE ICONIC - IDG MC/Moderator Anthony Caruana

    Play Video

More videos

Blog Posts