发明名称 |
Electronic device with a plurality of memory cells and with physically unclonable function |
摘要 |
An electronic device includes a non-volatile memory having a plurality of memory cells, a memory controller, and an evaluator. The memory controller is configured to provide control signals to the non-volatile memory causing the non-volatile memory, or a selected memory section of the non-volatile memory, to be in one of a read state and a weak erase state, wherein the weak erase state causes the plurality of memory cells to maintain different states depending on different physical properties of the plurality of memory cells. The evaluator is configured to read out the plurality of memory cells and to provide a readout pattern during the read state, wherein the readout pattern that is provided after a preceding weak erase state corresponds to a physically unclonable function (PUF) response of the electronic device uniquely identifying the electronic device. |
申请公布号 |
US9093128(B2) |
申请公布日期 |
2015.07.28 |
申请号 |
US201213668963 |
申请日期 |
2012.11.05 |
申请人 |
Infineon Technologies AG |
发明人 |
Otterstedt Jan;Müller David |
分类号 |
G11C7/06;H04L9/32;H04L9/08;G11C16/22;H04L29/06 |
主分类号 |
G11C7/06 |
代理机构 |
Murphy, Bilak & Homiller, PLLC |
代理人 |
Murphy, Bilak & Homiller, PLLC |
主权项 |
1. An electronic device comprising:
a non-volatile memory comprising a plurality of memory cells; a memory controller configured to provide control signals to the non-volatile memory causing the non-volatile memory, or a selected memory section of the non-volatile memory, to be in one of a read state and a weak erase state, wherein the weak erase state causes the plurality of memory cells to maintain different states depending on different physical properties of the plurality of memory cells; and an evaluator configured to read out the plurality of memory cells and to provide a readout pattern during the read state, wherein the readout pattern that is provided after a preceding weak erase state corresponds to a physically unclonable function response of the electronic device uniquely identifying the electronic device. |
地址 |
Neubiberg DE |