Here the reference about the type of crypto devices I was talking about: MICROCHIP Security ICs. And I'm sure that MICROCHIP is not the only one with such offerings.
About 2 years ago I was looking into this - for message encryption. But then Espruino added https support... and my work came to a halt. I already got devices but they never consumed any power so far... :(
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Here the reference about the type of crypto devices I was talking about: MICROCHIP Security ICs. And I'm sure that MICROCHIP is not the only one with such offerings.
About 2 years ago I was looking into this - for message encryption. But then Espruino added https support... and my work came to a halt. I already got devices but they never consumed any power so far... :(