WhatsApp Tri-Crypt program could be in the past used to convert CRYPT5, CRYPT6 and CRYPT7 archives to the legacy CRYPT format, but it can also be used the other way, should you, for whatever reason, need it. Nowadays CRYPT12 files are used, so crypt to crypt5 conversion is more or less pointless now.
Updated: November 18, 2020
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