Posted by jpluimers on 2017/02/24
We have broken SHA-1 in practice.
This industry cryptographic hash function standard is used for digital signatures and file integrity verification, and protects a wide spectrum of digital assets, ranging credit card transactions, electronic documents, open-source software repositories and software updates.
It is now practically possible to craft two colliding PDF files and obtain a SHA-1 digital signature on the first PDF file which can also be abused as a valid signature on the second PDF file.
For example, by crafting the two colliding PDF files as two rental agreements with different rent, it is possible to trick someone to create a valid signature for a high-rent contract by having him or her sign a low-rent contract.
–jeroen
Posted in Encryption, Hashing, Power User, Security, SHA | Leave a Comment »
Posted by jpluimers on 2017/02/23
the release of 1.2 is almost there! We are working hard to deliver it shortly after the next Delphi release which will happen … soonish, I think. ;)
The release/1.2 branch has been around for a while – please take a look if you haven’t already. It contains a lot of new features and bugfixes. I will tell you more about some of the amazing features next time which won’t take as long as it took since the last blog post – promise. :)
Apart from a very interesting take on DI resolvers, the above great info too!
Please take a look at spring4d/branch/release/1.2 as it has been very stable for quite some time.
Source: [WayBack]: Delphi sorcery: Generics, modules and typeinfo
–jeroen
via: [WayBack] Finally some blog article again ;) – Stefan Glienke – Google+
Posted in Delphi, Delphi 10 Seattle, Delphi 10.1 Berlin (BigBen), Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Delphi XE8, Development, Software Development | Leave a Comment »
Posted by jpluimers on 2017/02/23
Some links that were useful getting back into using Delphi with resource scripts and include files:
Maybe I should have considered this alternative:
–jeroen
PS: a first go on a resource file structure for Version Information is below.
Read the rest of this entry »
Posted in Delphi, Development, QC, Resource Files and Scripts (.res/.rc), Software Development | Leave a Comment »
Posted by jpluimers on 2017/02/22
A while ago, I bitched that Microsoft moved away the Windows Update out of the Control panel into a language depended place (in Windows 10 1511 update broke the Hyper-V networking – Fix network connection issues).
Since then I had to maintain too many locales running Windows 10. So here is the batch file:
for /f "delims=" %%A in ('PowerShell -Command "(Get-Culture).Name"') do explorer "%LocalAppData%\Packages\windows.immersivecontrolpanel_cw5n1h2txyewy\LocalState\Indexed\Settings\%%A\AAA_SystemSettings_MusUpdate_UpdateActionButton.settingcontent-ms"
It uses these tricks:
- Set output of a command as a variable (in this case a for loop variable)
- Execute PowerShell script in a .bat file
- PowerShell Get-Culture (which gets a .NET CultureInfo instance)
- CultureInfo.Name property (which has the nl-NL, en-US, etc codes in it)
It replaced this simple batch-file which has worked for like 10 years:
%windir%\System32\rundll32.exe url.dll,FileProtocolHandler wuapp.exe
–jeroen
via: Windows Update Shortcut – Create in Windows 10 – Windows 10 Forums
Posted in .NET, .NET 1.x, .NET 2.0, .NET 3.0, .NET 3.5, .NET 4.0, .NET 4.5, Batch-Files, CommandLine, Development, Power User, PowerShell, Scripting, Software Development, Windows, Windows 10 | Leave a Comment »
Posted by jpluimers on 2017/02/21
… there’s no need to use WaitForMultipleObjects in Step 2. It’s fairly easy to keep a counter of active threads in the pool (interlocked-incremented when a thread starts, interlocked-decremented when a thread is finished). When the counter reaches zero (no more active threads), signal an event. With only one event to wait for, you can use WaitForSingleObject…
So no more 64-thread (MAXIMUM_WAIT_OBJECTS) limits for pools…
Source: Delphi and stuff: The strange limitation of 64 threads
–jeroen
Posted in .NET, Delphi, Development, Power User, Software Development, Windows | Leave a Comment »
Posted by jpluimers on 2017/02/21
Does anyone have a run-time fix for CreateInOutError raising an EInOutError with Code=3 (correct) and Message=’Invalid file name – %s’ (incorrect becaus… – Jeroen Wiert Pluimers – Google+
[WayBack] Does anyone have a run-time fix for CreateInOutError raising an EInOutError w…:
Does anyone have a run-time fix for
CreateInOutError raising an
EInOutError with
Code=
3 (correct) and
Message=
'Invalid file name - %s' (incorrect because
System.SysUtils should have used
System.SysConst not
System.RTLConst and
System.RTLConst wrongly duplicates some resource strings in
System.SysConst) See [
WayBack]
http://qc.embarcadero.com/wc/qcmain.aspx?d=129530.
It would be so cool if a fix fills in the %s with the invalid file name.
–jeroen
Later: this seems to be reported in [RSP-20588] Exception message created for missing file has %s – Embarcadero Technologies
Posted in Delphi, Delphi 10 Seattle, Delphi 10.1 Berlin (BigBen), Delphi XE7, Delphi XE8, Development, Software Development | Leave a Comment »
The Wiert Corner - irregular stream of stuff 