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piposcope.jl
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piposcope.jl
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# This file is part of Jlsca, license is GPLv3, see https://www.gnu.org/licenses/gpl-3.0.en.html
# Author: Cees-Bart Breunesse
#
# PoC using rapid block mode of the Picoscope 5203 on Riscure's Pinata board.
#
# Look for main(). Running this without changes acquires ~245K traces of randomly interleaved TVLA r5 sbox semi-constant and AES MixColumn semi-constant data. Should not take more than 17 minutes. It dumps the traces into split binary files, you'll need to run splitbinary2ins.jl in order to create Inspector traces if you want to import them there.
#
# Assumes many things, like
# - the Pinata board to be at /dev/ttyUSB0
# - you installed the Picotech Linux drivers https://www.picotech.com/downloads/linux
# - you installed the Julia libserialport wrapper https://github.com/andrewadare/LibSerialPort.jl
#
# Also:
# - I've not tested this on Windows
# - This script doesn't do anything gracefully, like terminating on errors. Be careful.
# - Many of the scope parameters are hard coded (measure on channel B, trigger on external, for example)
# - Things will break when using more than 1 measuring channel
#
# Datasheet for the scope I used as reference is here:
# https://www.picotech.com/download/manuals/ps5000pg-en-1.pdf
using ProgressMeter
include("aes.jl")
using Aes
using LibSerialPort
import LibSerialPort.sp_blocking_read
import LibSerialPort.Port
import LibSerialPort.handle_error
import LibSerialPort.loc
const model = "ps5000"
const libname = @sprintf("lib%s", model)
const OpenUnit = @sprintf("%sOpenUnit", model)
const CloseUnit = @sprintf("%sCloseUnit", model)
const SetChannel = @sprintf("%sSetChannel", model)
const GetTimebase = @sprintf("%sGetTimebase", model)
const SetDataBufferBulk = @sprintf("%sSetDataBufferBulk", model)
const GetValuesBulk = @sprintf("%sGetValuesBulk", model)
const SetNoOfCaptures = @sprintf("%sSetNoOfCaptures", model)
const SetEts = @sprintf("%sSetEts", model)
const SetSimpleTrigger = @sprintf("%sSetSimpleTrigger", model)
const RunBlock = @sprintf("%sRunBlock", model)
const IsReady = @sprintf("%sIsReady", model)
const MemorySegments = @sprintf("%sMemorySegments", model)
const GetValuesTriggerTimeOffsetBulk64 = @sprintf("%sGetValuesTriggerTimeOffsetBulk64", model)
const GetTriggerTimeOffset64 = @sprintf("%sGetTriggerTimeOffset64", model)
const SetSigGenBuiltIn = @sprintf("%sSetSigGenBuiltIn", model)
@enum InputChannel PS_CHANNEL_A PS_CHANNEL_B PS_CHANNEL_C PS_CHANNEL_D PS_CHANNEL_EXT
@enum VoltageRange PS_10MV PS_20MV PS_50MV PS_100MV PS_200MV PS_500MV PS_1V PS_2V PS_5V PS_10V PS_20V PS_50V
@enum EtsMode PS_ETS_OFF PS_ETS_FAST PS_ETS_SLOW
@enum ThresholdDirection ABOVE BELOW RISING FALLING RISING_OR_FALLING
function openUnit(handle::Ref{Cshort})
val = ccall((OpenUnit, libname), Int32, (Ref{Cshort},), handle)
if val != 0
@printf("error %s: %d\n", OpenUnit, val)
end
end
function closeUnit(handle::Ref{Cshort})
val = ccall((CloseUnit, libname), Int32, (Cshort,), handle.x)
if val != 0
@printf("error %s: %d\n", CloseUnit, val)
end
end
function setChannel(handle::Ref{Cshort}, channel::InputChannel, enabled::Bool, dcCoupling::Bool, range::VoltageRange)
val = ccall((SetChannel, libname), Int32, (Cshort,Cint,Cshort,Cshort,Cint), handle.x, channel, enabled ? 1 : 0, dcCoupling ? 1 : 0, range)
if val != 0
@printf("error %s: %d\n", SetChannel, val)
end
end
function setEts(handle::Ref{Cshort}, mode::EtsMode, etsCycles::Int, etsInterleave::Int)
sampleTimePicoseconds = Ref{Clong}(0)
val = ccall((SetEts, libname), Int32, (Cshort,Cint,Cshort,Cshort,Ref{Clong}), handle.x, mode, etsCycles, etsInterleave, sampleTimePicoseconds)
if val != 0
@printf("error %s: %d\n", SetEts, val)
end
# @printf("sampleTimePicoseconds: %d\n", sampleTimePicoseconds.x)
end
function getTimebase(handle::Ref{Cshort}, timebase::Int, noSamples::Int, timeIntervalNanoseconds::Ref{Clong}, oversample::Int, maxSamples::Ref{Clong}, segmentIndex::Int)
val = ccall((GetTimebase, libname), Int32, (Cshort,Culong,Clong,Ref{Clong},Cshort,Ref{Clong}, Cushort), handle.x, timebase, noSamples, timeIntervalNanoseconds, oversample, maxSamples, segmentIndex)
if val != 0
@printf("error %s: %d\n", GetTimebase, val)
end
end
function setDataBufferBulk(handle::Ref{Cshort}, channel::InputChannel, buffer::Vector{Int16}, waveform::Int)
val = ccall((SetDataBufferBulk, libname), Int32, (Cshort,Clong,Ptr{Cshort},Clong, Culong), handle.x, channel, buffer, length(buffer)*2, waveform)
if val != 0
@printf("error %s: %d\n", SetDataBufferBulk, val)
end
end
function getValuesBulk(handle::Ref{Cshort}, noOfSamples::Ref{Culong}, fromSegmentIndex::Int, toSegmentIndex::Int, overflow::Vector{UInt16})
val = ccall((GetValuesBulk, libname), Int32, (Cshort,Ref{Culong},Cushort, Cushort, Ptr{Cushort}), handle.x, noOfSamples, fromSegmentIndex, toSegmentIndex, overflow)
if val != 0
@printf("error %s: 0x%02x\n", GetValuesBulk, val)
end
end
function setNoOfCaptures(handle::Ref{Cshort}, nrCaptures::Int)
val = ccall((SetNoOfCaptures, libname), Int32, (Cshort,Cushort), handle.x, nrCaptures)
if val != 0
@printf("error %s: %d\n", SetNoOfCaptures, val)
end
end
function memorySegments(handle::Ref{Cshort}, nrSegments::Int, nMaxSamples::Ref{Clong})
val = ccall((MemorySegments, libname), Int32, (Cshort,Cushort,Ref{Clong}), handle.x, nrSegments, nMaxSamples)
if val != 0
@printf("error %s: %d\n", MemorySegments, val)
end
end
function setSimpleTrigger(handle::Ref{Cshort}, enabled::Bool, channel::InputChannel, threshold::Int, direction::ThresholdDirection, delay::Int, autotrigger_ms::Int)
val = ccall((SetSimpleTrigger, libname), Int32, (Cshort,Cshort,Clong,Cshort,Clong,Culong,Cshort), handle.x, enabled ? 1:0, channel, threshold, direction, delay, autotrigger_ms)
if val != 0
@printf("error %s: %d\n", SetSimpleTrigger, val)
end
end
function runBlock(handle::Ref{Cshort}, noOfPreTriggerSamples::Int, noOfPostTriggerSamples::Int, timebase::Int, oversample::Int, timeIndisposedMs::Ref{Culong}, segmentIndex::Int)
val = ccall((RunBlock, libname), Int32, (Cshort,Clong,Clong,Culong,Cshort,Ref{Culong},Cushort,Ptr{Void},Ptr{Void}), handle.x, noOfPreTriggerSamples, noOfPostTriggerSamples, timebase, oversample, timeIndisposedMs, segmentIndex, C_NULL, C_NULL)
if val != 0
@printf("error %s: 0x%02x\n", RunBlock, val)
closeUnit(handle)
end
end
function isReady(handle::Ref{Cshort}, ready::Ref{Cshort})
val = ccall((IsReady, libname), Int32, (Cshort,Ref{Cshort}), handle.x, ready)
if val != 0
@printf("error %s: %d\n", IsReady, val)
end
end
function getValuesTriggerTimeOffsetBulk64(handle::Ref{Cshort}, times::Vector{Int64}, timeUnits::Vector{UInt32}, fromSegmentIndex::Int, toSegmentIndex::Int)
val = ccall((GetValuesTriggerTimeOffsetBulk64, libname), Int32, (Cshort,Ptr{Int64},Ptr{UInt32},Cushort,Cushort), handle.x, times, timeUnits, fromSegmentIndex, toSegmentIndex)
if val != 0
@printf("error %s: %d\n", GetValuesTriggerTimeOffsetBulk64, val)
end
end
function getTriggerTimeOffset64(handle::Ref{Cshort}, times::Vector{Int64}, timeUnits::Vector{UInt32}, segment::Int)
val = ccall((GetTriggerTimeOffset64, libname), Int32, (Cshort,Ptr{Int64},Ptr{UInt32},Cushort,Cushort), handle.x, times, timeUnits, fromSegmentIndex, toSegmentIndex)
if val != 0
@printf("error %s: %d\n", GetTriggerTimeOffset64, val)
end
end
function setSigGenBuiltIn(handle::Ref{Cshort}, offsetVoltage::Int, pkToPk::Int, waveType::Int, startFrequency::Float64, stopFrequency::Float64, increment::Float64, dwellTime::Float64, sweepType::Int, whiteNoise::Int,shots::Int,sweeps::Int,triggerType::Int,triggerSource::Int,extInThreshold::Int )
val = ccall((SetSigGenBuiltIn, libname), Int32, (Cshort,Clong,Culong,Cshort,Cfloat,Cfloat,Cfloat,Cfloat,Cint,Cshort,Culong,Culong,Cint,Cint,Cshort), handle.x, offsetVoltage, pkToPk, waveType, startFrequency, stopFrequency, increment, dwellTime, sweepType, whiteNoise, shots, sweeps, triggerType, triggerSource, extInThreshold)
if val != 0
@printf("error %s: %d\n", SetSigGenBuiltIn, val)
end
end
type Scope
handle::Ref{Cshort}
availableInputChannels::Vector{InputChannel}
channels::Vector{InputChannel}
timebase::Int
preTriggerSamples::Int
postTriggerSamples::Int
acquisitions::Int
blocks::Int
maxBlocks::Int
buffers::Vector{Vector{Int16}}
triggerChannel::InputChannel
function Scope()
return new(Ref{Cshort}(0), [PS_CHANNEL_A, PS_CHANNEL_B], [PS_CHANNEL_A], 0, 100, 3200, 100, 1, 10, Vector{Vector{Int16}}(0), PS_CHANNEL_EXT)
end
end
function setupScope(s::Scope)
handle = s.handle
availableInputChannels = s.availableInputChannels
channels = s.channels
timebase = s.timebase
preTriggerSamples = s.preTriggerSamples
postTriggerSamples = s.postTriggerSamples
acquisitions = s.acquisitions
openUnit(handle)
setEts(handle, PS_ETS_OFF, 0, 0)
for c in availableInputChannels
if c in channels
setChannel(handle, c, true, true, PS_500MV)
else
setChannel(handle, c, false, true, PS_5V)
end
end
timeIntervalNanoseconds = Ref{Clong}(0)
maxSamples = Ref{Clong}(0)
getTimebase(handle,timebase, 1, timeIntervalNanoseconds, 0, maxSamples, 0)
@printf("Scope says it has a buffer for %d samples\n", maxSamples.x)
samples = preTriggerSamples + postTriggerSamples
blocks = div(maxSamples.x, samples) - 10
blocks = min(blocks, s.maxBlocks)
@printf("Will get %d blocks per acquisition: %d blocks * %d acquisitions == %d traces of %d samples\n", blocks, blocks, acquisitions, blocks * acquisitions, samples)
memorySegments(handle, blocks, maxSamples)
setNoOfCaptures(handle, blocks)
@printf("Scope says %d samples per segment are available\n", maxSamples.x)
if maxSamples.x < samples
@printf("BAD! Scope doesn't have enough samples available for this number of blocks, try lowering scope.maxBlocks!!!\n")
end
s.buffers = Vector{Vector{Int16}}(blocks * length(channels))
for cidx in 1:length(channels)
for b in 1:blocks
s.buffers[b + (cidx-1)*blocks] = ones(Int16, samples)
setDataBufferBulk(handle, channels[cidx], s.buffers[b + (cidx-1)*blocks], b-1)
end
end
s.blocks = blocks
setSimpleTrigger(handle, true, s.triggerChannel, 1000, RISING, 0, 1000)
return s
end
function armScope(s::Scope)
timeIndisposedMs = Ref{Culong}(0)
runBlock(s.handle, s.preTriggerSamples, s.postTriggerSamples, s.timebase, 0, timeIndisposedMs, 1)
end
function fetchScopeData(s::Scope)
ready = Ref{Cshort}(0)
while ready.x == 0
isReady(s.handle, ready)
end
# @printf("done runBLlok , scope timeIndisposedMs %d!\n", timeIndisposedMs.x)
noOfSamples = Ref{Culong}(s.preTriggerSamples + s.postTriggerSamples)
blocks = s.blocks
overflow = ones(UInt16, blocks)
times = ones(Int64, blocks)
timeUnits = ones(UInt32, blocks)
getValuesBulk(s.handle, noOfSamples, 0, s.blocks-1, overflow)
# @printf("fetched data, noOfSamples %d, overflow %s\n", noOfSamples.x, string(overflow))
getValuesTriggerTimeOffsetBulk64(s.handle, times, timeUnits, 0, s.blocks-1)
# @printf("fetched times: %s\n", string(times))
end
function closeScope(scope::Scope)
closeUnit(scope.handle)
end
getSamples(scope::Scope) = scope.preTriggerSamples + scope.postTriggerSamples
# TODO: feed this patch back into https://github.com/andrewadare/LibSerialPort.jl
function sp_blocking_read!(port::Port, buffer::Array{UInt8}, timeout_ms::Integer)
# If the read succeeds, the return value is the number of bytes read.
ret = ccall((:sp_blocking_read, "libserialport"), SPReturn,
(Port, Ptr{UInt8}, Csize_t, Cuint),
port, buffer, Csize_t(length(buffer)), Cuint(timeout_ms))
handle_error(ret, loc())
nb = Int(ret)
if nb != length(buffer)
@printf("serial timed out: %d expected %d!!!! bAD, you don't want to see this ever!\n", nb, length(buffer))
end
return nb
end
# input gen for AES128 MC attack
function inputgenMC(rng)
r = rand(rng, 1:4)
return [(i in [o for o in r:4:16] ? UInt8(rand(rng, 0:255)) : 0x0) for i in 1:16]
end
# just all randoms, for sbox attack
function inputgenSB(rng)
return [UInt8(rand(rng, 0:255)) for i in 1:16]
end
# semi constant AES128 sbox 5 state input generator
function input128TVLA(rng,expkey)
state = zeros(UInt8, 16)
state[rand(rng,1:16)] = (1 << rand(rng,0:7))
state[rand(rng,1:16)] = (1 << rand(rng,0:7))
rx_s_box = reshape(state, (4,4))
# AES128 decrypt r6.istart == AES encrypt r5.sbox
input = Aes.InvCipher(state, expkey, (label,state)-> "r6.istart" == label ? rx_s_box : state)
return input
end
# This is the acquisition loop
function main()
s = SerialPort("/dev/ttyUSB0")
open(s)
set_speed(s, 115200)
set_frame(s, ndatabits=8, parity=SP_PARITY_NONE, nstopbits=1)
set_flow_control(s)
print_port_settings(s)
flush(s, buffer=SP_BUF_BOTH)
cmd::Vector{UInt8} = hex2bytes("CA000102030405060708090A0B0C0D0E0F")
res::Vector{UInt8} = Vector{UInt8}(16)
scope = Scope()
scope.preTriggerSamples = 0
scope.postTriggerSamples = 3000
scope.timebase = 0
scope.maxBlocks = 8*1024
scope.acquisitions = 30
scope.channels = [PS_CHANNEL_B]
scope.triggerChannel = PS_CHANNEL_EXT
setupScope(scope)
data_fd = open("pipo2_data_33s.bin", "w")
sample_fd = open(@sprintf("pipo2_samples_Int16_%ds.bin", getSamples(scope)), "w")
rng = MersenneTwister(1)
key = hex2bytes("cafebabedeadbeef0001020304050607")
expkey = Aes.KeyExpansion(key, 10, 4)
progress = Progress(scope.acquisitions * scope.blocks, 1, @sprintf("Acquiring %d traces ..", scope.acquisitions * scope.blocks))
for a in 1:scope.acquisitions
armScope(scope)
for i in 1:scope.blocks
coin::UInt8 = UInt8(rand(0:1))
if coin == 0
cmd[2:17] = inputgenMC(rng)
else
cmd[2:17] = input128TVLA(rng,expkey)
end
# @printf("=> %s\n", bytes2hex(cmd))
sp_nonblocking_write(s.ref, cmd)
update!(progress, (a-1)*scope.blocks + i)
write(data_fd, coin)
write(data_fd, cmd[2:17])
sp_blocking_read!(s.ref, res, 1000)
write(data_fd, res)
# @printf("<= %s\n\n", bytes2hex(res))
end
fetchScopeData(scope)
for i in 1:length(scope.buffers)
write(sample_fd, scope.buffers[i])
end
end
close(data_fd)
close(sample_fd)
closeScope(scope)
close(s)
return scope
end
# using PyPlot to do this
function plotSamples(scope::Scope)
buffers = scope.buffers
for i in 1:length(buffers)
plot(buffers[i])
end
end
# Some data I got from Inspector on how Pinata is driven and how long the trigger window is:
# AES SW enc 215us
# > AE
# > 5E 70 B1 4C FD 0C A7 06 55 0C AB 4A F1 3B 39 73
# < 5F EB 91 62 28 88 09 72 4D 32 D5 1E BB B8 DF B9
# AES tables enc 19us
# > 41
# > 8F CA F8 3E C3 76 53 FC 49 93 E4 B3 44 6A 39 84
# < 3E A9 4B BB 0C E4 D9 EB 3C DC 03 AB A6 53 21 AB
# AES hw enc 3us
# > CA
# > 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
# < 7C 66 E0 D9 41 22 88 C6 5B AA 49 6F BA 54 83 FE
# >
# Simple test for comms with the Pinata board
function hellopinata()
s = SerialPort("/dev/ttyUSB0")
open(s)
set_speed(s, 115200)
set_frame(s, ndatabits=8, parity=SP_PARITY_NONE, nstopbits=1)
set_flow_control(s)
print_port_settings(s)
flush(s, buffer=SP_BUF_BOTH)
cmd::Vector{UInt8} = hex2bytes("CA000102030405060708090A0B0C0D0E0F")
res::Vector{UInt8} = Vector{UInt8}(16)
rng = MersenneTwister(1)
for a in 1:400000
# cmd[2:17] = inputgenSB(rng)
# @printf("=> %s\n", bytes2hex(cmd))
sp_blocking_write(s.ref, cmd, 0)
sp_blocking_read!(s.ref, res, 1000)
# @printf("<= %s\n\n", bytes2hex(res))
end
close(s)
end
# main or hellopinata is called here
@time scope = main()
# @time scope = hellopinata()