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TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20240310T030000 RDATE:20241103T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20250309T030000 RDATE:20251102T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20260308T030000 RDATE:20261101T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20270314T030000 RDATE:20271107T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20280312T030000 RDATE:20281105T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20290311T030000 RDATE:20291104T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20300310T030000 RDATE:20301103T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20310309T030000 RDATE:20311102T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20320314T030000 RDATE:20321107T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20330313T030000 RDATE:20331106T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20340312T030000 RDATE:20341105T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT UID:720fa7098ee075245853280bfc3f02fb CATEGORIES:Computer Science Department Colloquium CREATED:20190823T084029 SUMMARY:CANCELLED: Run-time Accessible DRAM PUFs in Commodity Devices LOCATION:CoRE A 301 DESCRIPTION;ENCODING=QUOTED-PRINTABLE:
Physically Unclonable Functions (PUF) are a unique and stable physical c haracteristics of a piece of hardware, which emerge due to variations in th e fabrication processes. PUF can be considered a type of fingerprint that i s unique to each device. PUFs are a promising cryptographic primitive, whic h can enable secure key storage, hardware-based device authentication and i dentification. Most PUF constructions presented by other researchers have r equired an addition of new hardware or special FPGA implementations for the ir operation. Recently, various researchers have investigated intrinsic PUF s that can be found in commodity devices. Unfortunately, most of the propos als are based on SRAM and suffer from the drawback that they can only be ac cessed at boot time of the system. This talk will present details of a new, run-time accessible PUF based on DRAM. The presented work leverages decay characteristics intrinsic to DRAM in commercial off-the-shelf systems. The DRAM decay-based PUF requires no additional hardware or use of special FPGA . One of the key advantages of the new PUF construction is that it can be q ueried during run-time of a Linux system. Furthermore, by exploiting differ ent decay times of individual DRAM cells, the challenge-response space is i ncreased. The new DRAM PUF is used in lightweight protocols for device auth entication and secure channel establishment that will be presented in the t alk as well. The talk will conclude with discussion of current research cha llenges and opportunities they present for further work on advancing DRAM P UFs.
DTSTAMP:20240329T045632Z DTSTART;TZID=America/New_York:20170126T110000 SEQUENCE:0 TRANSP:OPAQUE END:VEVENT END:VCALENDAR