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:blobcathug: (jain@blob.cat)'s status on Wednesday, 06-Mar-2024 21:41:16 JST :blobcathug:
- mia
@mia remember java cards?
https://en.m.wikipedia.org/wiki/Java_Card
In conversation about 9 months ago from blob.cat permalink
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  Java Card
  
  Java Card is a software technology that allows Java-based applications (applets) to be run securely on smart cards and more generally on similar secure small memory footprint devices which are called "secure elements" (SE). Today, a secure element is not limited to its smart cards and other removable cryptographic tokens form factors; embedded SEs soldered onto a device board and new security designs embedded into general purpose chips are also widely used. Java Card addresses this hardware fragmentation and specificities while retaining code portability brought forward by Java. Java Card is the tiniest of Java platforms targeted for embedded devices. Java Card gives the user the ability to program the devices and make them application specific. It is widely used in different markets: wireless telecommunications within SIM cards and embedded SIM, payment within banking cards and NFC mobile payment and for identity cards, healthcare cards, and passports. Several IoT products like gateways are also using Java Card based products to secure communications with a cloud service for instance. The first Java Card was introduced in 1996 by Schlumberger's card division...
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  Ozzelot :anarchy: :linux: (ozzelot@mstdn.social)'s status on Wednesday, 06-Mar-2024 22:31:23 JST Ozzelot :anarchy: :linux:
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  - mia
  @Jain
  It can still be in SIM cards, although idk if cards made today take advantage of it https://en.m.wikipedia.org/wiki/SIM_Application_Toolkit
  @mia
  In conversation about 9 months ago permalink
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    SIM Application Toolkit
    
    SIM Application Toolkit (STK) is a standard of the GSM system which enables the subscriber identity module (SIM card) to initiate actions which can be used for various value-added services. Similar standards exist for other network and card systems, with the USIM Application Toolkit (USAT) for USIMs used by newer-generation networks being an example. A more general name for this class of Java Card-based applications running on UICC cards is the Card Application Toolkit (CAT).The SIM Application Toolkit consists of a set of commands programmed into the SIM which define how the SIM should interact directly with the outside world and initiates commands independently of the handset and the network. This enables the SIM to build up an interactive exchange between a network application and the end user and access, or control access to, the network. The SIM also gives commands to the handset such as displaying menus and/or asking for user input.STK has been deployed by many mobile operators around the world for many applications, often where a menu-based approach is required, such as Mobile Banking and content browsing. Designed as a single application...
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