Tutorial CW305-4 Voltage Glitching with Crowbars

Background Information

- Difficulties with voltage glitching

 - FPGAs do everything at the same time
 - SRAM holds configuration

- Crowbar circuit

Setup

Hardware Setup

- SMA cable - Picture

Software Setup

- Script - Bitstream (same as Tutorial 1) - Glitch module setup

 - Glitch only
 - HS-Glitch

- Same idea as Tutorial 3

Hints

- Might be easier on the edge of working conditions - Changing core voltage level - Changing clock speed

 - CLKGEN output
 - CW305 PLL
 - Max speed depends on FPGA implementation

- Enable-only output

 - Only use repeat and offset
 - EXTCLK for speed-up

Tutorials

See Tutorial Map for important information & suggested order of completion.

Theory

Correlation Power Analysis

Template Attacks

Extending AES-128 Attacks to AES-256

Basic Tutorials

Tutorial B1 Building a SimpleSerial Project

Tutorial B2 Viewing Instruction Power Differences

Tutorial B3-1 Timing Analysis with Power for Password Bypass

Tutorial B5 Breaking AES (Straightforward)

Tutorial B6 Breaking AES (Manual CPA Attack)

Tutorial B7 Profiling Attacks (with HW Assumption)

Tutorial B11 Breaking RSA

Advanced Tutorials

Tutorial A2 Introduction to Glitch Attacks (including Glitch Explorer)

Tutorial A3 VCC Glitch Attacks

Tutorial A5 Breaking AES-256 Bootloader

Tutorial A5-Bonus Breaking AES-256 Bootloader

Tutorial A7 Glitch Buffer Attacks

Tutorial A8 32bit AES

Hardware-Specific Tutorials

Tutorial P1 Stream Mode and Advanced Triggering (CW Pro)

Tutorial CW305-1 Building a Project

Tutorial CW305-2 Breaking AES on FPGA

Tutorial CW305-3 Clock Glitching

Tutorial CW305-4 Voltage Glitching with Crowbars

Archived Tutorials (v4/v3 only)

Tutorial B3-2 Timing Analysis with Power for Attacking TSB

Tutorial B4 Testing Two Partitions of Traces

Tutorial B5-2 Breaking DES (Straightforward)

Tutorial B8 Profiling Attacks (Manual Template Attack)

Tutorial B9 The Preprocessing Modules

Tutorial B10 Using with SASEBO-W CardOS or DPA Contest v4.2

Tutorial A1 Synchronization to Communication Lines

Tutorial A4 SAD Trigger for SCA and Glitch

Tutorial A6 Replication of Ilya Kizhvatov's XMEGA® Attack

Tutorial A9 Bypassing LPC1114 Read Protect