DeviceFidelity Inc. has upgraded its iCaisse cover for iPhones to support the use of a SIM card as the secure element for Near Field Communication mobile payments.

The Richardson, Texas-based NFC technology provider says the NFC case will work on Apple Inc.'s iPhone 5 and 5s models. Apple has never introduced an iPhone model with an NFC chip included in the handset.

Previously, the iCaisse utilized a microSD chip as its secure element. DeviceFidelity introduced the product in early 2012 alongside a mobile payment app from Spring Card Systems and a MasterCard prepaid card, creating the moneto mobile payment system for iPhones.

DeviceFidelity's Credense microSD includes a built-in NFC antenna, providing extra "read" range for contactless payments.

DeviceFidelity says the Credense NFC microSD integrates with the Host Card Emulation software in KitKat, the latest version of Google's Android mobile operating system. Host Card Emulation allows any application to support NFC payment capabilities without having to access the device's secure element.

The Credense microSD also enables NFC on wearables such as smart watches, keychains, glasses and MP3 players, DeviceFidelity says.

DeviceFidelity has also developed what it says is the first NFC-enabled mobile point-of-sale software for the iPad mini and iPad Air tablets, the company announced Nov. 19.

The software will also allow secure, encrypted mag-stripe card acceptance in addition to a secure element designed for the iPad product line.

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