Post #3948536
2026-07-20 02:38 UTC
@muddle@infosec.exchange .rt is not compressed, and .rti2 is compressed. .rtc is also compressed but not as well as .rti2
For example 9TB of rti2 is equal to about 11TB of .rtc.
About 17TB of .rt is equal to about 7TB of .rti2 (250%)
More tools seem to support .rtc, but if they are old tools and everyone is using the ones that support .rti2 then great, less disk space needed and I can try to covert to that format.
Replies (2)
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@muddle@infosec.exchange 2026-07-20 02:44
@thedarktangent@defcon.social OK, can you explain to me how these things are compressed? As I understand it, rainbow tables are a method of storing all the salts and all the hashes at the same time, but the combination (signature) of both of them is essentially random data, and hence incompressible. What am I missing here?
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@muddle@infosec.exchange 2026-07-20 02:50
@thedarktangent@defcon.social OK, just checked out RT and I think I was wrong. RT probably uses a predefined salt but all the hash chains are just random gibberish, so still no potential for compression as far as I can see. Sure, I could look this stuff up but from my understanding the idea of compression is bullshit.