On the upper left, click the blue "Hashcalc 2.02" link. Save the Zip file on your desktop.
On your desktop, right-click the hashcalc.zip file and click "Extract All" Click Extract.
A hashcalc window opens containing a setup.exe file. Double-click the setup.exe file and install the software with the default options.
http://www.mscs.dal.ca/~selinger/md5collision
Scroll down to the section titled "An evil pair of executable programs", as shown below.
Click the hello.exe file. Save it on your desktop.
Click the erase.exe file. Save it on your desktop.
On your desktop, double-click the hello.exe file. If an "Open File - Security Warning" box appears, click Run. A box opens saying "Hello World", as shown , as shown below.
On your desktop, double-click the erase.exe file. If an "Open File - Security Warning" box appears, click Run. A box opens saying "This program is evil!!!", as shown , as shown below.
Press the PrntScrn key to capture the whole screen.
YOU MUST SUBMIT WHOLE DESKTOP IMAGES FOR FULL CREDIT.
Save this image as a PNG file, named "Proj 9a from YOUR NAME"
In the search results, click HashCalc.
A gray HashCalc box opens.
Drag the hello.exe file from your desktop and drop it in the HashCalc window. The MD5 hash appears, ending in 007, as shown below.
Drag the erase.exe file from your desktop and drop it in the HashCalc window. The MD5 hash appears, ending in 007, as shown below on this page. Notice that the MD5 values are identical for the two files, but the SHA1 hashes ar different. SHA-1 is a much better hash function than MD5, having no known collisions at the time of this writing (Feb. 9, 2016). However, SHA-1 collisions are expected to be found this year, so many people are now updating to SHA-2.
Press the PrntScrn key to capture the whole screen.
YOU MUST SUBMIT WHOLE DESKTOP IMAGES FOR FULL CREDIT.
Save this image as a PNG file, named "Proj 9b from YOUR NAME"
Last modified 2-17-16