Editing One-time password (section)

=== Hardware tokens ===
[[File:RSA-SecurID-Tokens.jpg|thumb|RSA SecurID [[security token]]s.]]

[[RSA Security]]'s [[SecurID]] is one example of a time-synchronization type of token, along with [[HID Global]]'s solutions. Like all tokens, these may be lost, damaged, or stolen; additionally, there is an inconvenience as batteries die, especially for tokens without a recharging facility or with a non-replaceable battery.  A variant of the proprietary token was proposed by RSA in 2006 and was described as "ubiquitous authentication", in which RSA would partner with manufacturers to add physical [[SecurID]] chips to devices such as mobile phones.

Recently,{{when|date=May 2024}} it has become possible to take the electronic components associated with regular keyfob OTP tokens and embed them in a credit card form factor. However, the thinness of the cards, at 0.79mm to 0.84mm thick, prevents standard components or batteries from being used. Special [[Lithium-ion polymer battery|polymer-based batteries]] must be used which have a much lower battery life than [[Coin cell|coin (button) cells]]. Semiconductor components must not only be very flat but must minimise the power used in standby and when operating. {{cn|date=May 2024}}

[[Yubico]] offers a small USB token with an embedded chip that creates an OTP when a key is pressed and simulates a keyboard to facilitate easily entering a long password.<ref>{{cite news|newspaper=Bloomberg Businessweek|url=http://investing.businessweek.com/research/stocks/private/snapshot.asp?privcapId=46126480|archive-url=https://web.archive.org/web/20121014155535/http://investing.businessweek.com/research/stocks/private/snapshot.asp?privcapId=46126480|url-status=dead|archive-date=October 14, 2012|title=Yubico AB|access-date=July 13, 2011}}</ref>  Since it is a USB device it avoids the inconvenience of battery replacement.

A new version of this technology has been developed that embeds a keypad into a [[payment card]] of standard size and thickness. The card has an embedded keypad, display, microprocessor and proximity chip.