gistfile1.txt

[tkerr@ec2a fastcoll]$
[tkerr@ec2a fastcoll]$ echo "This is the message to collide" >> message.txt
[tkerr@ec2a fastcoll]$ ./fastcoll message.txt
MD5 collision generator v1.5
by Marc Stevens (http://www.win.tue.nl/hashclash/)

Using output filenames: 'message_msg1.txt' and 'message_msg2.txt'
Using prefixfile: 'message.txt'
Using initial value: c0c167e78fdebddf3d63175436541834

Generating first block: .....
Generating second block: S00....................
Running time: 2.33 s
[tkerr@ec2a fastcoll]$ md5sum message_msg*
fc47b0a4644195b7eca97033e3a7eac9  message_msg1.txt
fc47b0a4644195b7eca97033e3a7eac9  message_msg2.txt
[tkerr@ec2a fastcoll]$ cat message_msg1.txt
This is the message to collide
��zM�y
      �B��S�<OfBz����yZ�gf_{m�<��~��劬��<��@+A��
                                                        DH%)6�;�VaY�A��a��΀��w�K;_���j��
[tkerr@ec2a fastcoll]$ cat message_msg2.txt
This is the message to collide
��zM�y
      �B��S��<OfBz����yZ�gf_{�<��~��
                                      ���<��@+A��
[tkerr@ec2a fastcoll]$