Strong stream cipher for data encryption

The encryption software works on all Windows systems. Challenger can also be used on portable USB drives and SD flash cards. The Challenger Freeware Version is intended only for privat use. The Challenger Full Version offers more features.
Programmsymbol von Challenger Challenger
Version 2.4.22

OS: Windows 32/64-Bit
Date: 09.04.2017
Size: 830 KB
MD5: b1f840d46483e1bca44e8dec574db2f2
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You can check the download with the MD5-checksums whether the download is undamaged on the transmission path.