[Cryptech Tech] tribyte pattern in rosc data

Russ Housley housley at vigilsec.com
Sun Dec 14 21:07:21 UTC 2014


The pattern appeared 31 times in the first 40,000,000 bits.  I did not look any further.  So, it is appearing every million bits or so.

Russ


On Dec 13, 2014, at 3:05 AM, Joachim Strömbergson wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA256
> 
> Aloha!
> 
> Russ, does this frequency of the pattern you find look correct?
> 
> Analyzed file: /Users/js/tmp/rosc_data_btsync/rosc_data.bin
> Total number of bytes: 67121200
> Number of patterns:    1041
> Frequency in file:     0.000016
> 
> - -- 
> Med vänlig hälsning, Yours
> 
> Joachim Strömbergson - Alltid i harmonisk svängning.
> ========================================================================
> Joachim Strömbergson          Secworks AB          joachim at secworks.se
> ========================================================================
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG/MacGPG2 v2
> Comment: GPGTools - http://gpgtools.org
> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
> 
> iQIcBAEBCAAGBQJUi/NIAAoJEF3cfFQkIuyNb20P/2UJFoWhmrUHEG5hxGH2aq98
> aADrZL2m3HN2XWvY06sv9axZCS1wBhcWlzi+8lz6PtE8Lr1kZtgP0KqUf8cAf7Co
> qTv0AcAljkjCzHuakQKRvQxGcT9J2mfhWUrEVpyX3+DrX+L6PDUZuaoNMmcju3vS
> bbvL49J5mHV6f/5VPOOg3Ir8TNhPq+JoKLQ593rje/7W7qqblQg45+JW3j6FWW7c
> r205tFGERywpGghx8TqrQspafvm/7kpQLkpnfO6uUCvlTTYUiqBWl5+AI3Fxp9KH
> wYHAxCPwcyZGhUi8fd/0iC2m7TwVJWNzETirBsSAuGwbjaf/U5jpD7CyAZrRGsmf
> 9guk0KTK8x7l3S7yXECC0xAknHil1k9D08NUZ8vWFXCT8XTVsnyVCgl1XFq4c3hy
> CSn8P6uEwacsPm1RH/u9+mL4lfLFqx/Zk26tRMfZibyymsumrTfWAtuYkrLotCLt
> fy/xU6sNyz/TvA4jUq2X2rftJFeOE8ICvxkz4YTy5ZmhpJ/S4ih5ChkT0e5vzul6
> evzI/fIuIW9VTjnDqD9UiMoTK3OJTJrReSrjyj73nmTNyTMB1jecO4dbdZRc+1BB
> qDRRggGxzqc8DiBqngix5D/RQ28V+xkMsmf6tfM9e8gG5OOocNnNko7CiJR6qL+B
> Tmyvet+fl4c8D2LLG1JV
> =1SVD
> -----END PGP SIGNATURE-----



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