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General Tech Technology & Software 2 years ago
Posted on 16 Aug 2022, this text provides information on Technology & Software related to General Tech. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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This is the first time I work on a smart card and I am not able to understand perfectly how to use it...
My situation : I have an ACOS5-64 smart card which supports cryptographic functions like RSA signature, SHA256 etc... and I would like to add a Schnorr signature on the card, as an applet for example. The thing is : all I have is the smart card's reference manual which explains how to use card's functionnality by APDU commands (create files, computes hashes or signatures...) but nothing about programing applets for the smart card. I know that Java Card allows this kind of thing but is it possible to add applets to a smart card that does not support Java Card technology ? (That's the case of mine)
Thank you very much for your consideration
No - the smart card must have an operating system that supports injecting and running an applet (GlobalPlatform, for instance). If the card does not have an operating system that supports the lifecycle of the Java Card applet, it will not work. Even some cards that do have such an operating system can restrict the ability to load new applets.
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