我已经捕获了3个数据包,我认为它们都使用相同的16位CRC,但我无法找到共同匹配。他们是: 1. DB97BD7F85C7 2. DCC45CDFBF47 3. DB5BF51FA66F
在所有3上运行reveng不会产生匹配。但我得到的比赛只有1和2,1和3,以及2和3.我也有下面的SRP16比赛,结果相似。我假设来自SRP16的众多部分匹配就是一个很好的例子,说明为什么Ross Williams和其他人说从不构成你自己的poly,除非你知道你在做什么。如果我取得任何进展,我会发布更多信息。
我错过了什么?
以下是我的尝试:
1,2和3
>reveng -w 16 -s DB97BD7F85C7 DCC45CDFBF47 DB5BF51FA66F
reveng: no models found
1和2
>reveng -w 16 -s DB97BD7F85C7 DCC45CDFBF47
width=16 poly=0x1c4d init=0x0820 refin=false refout=false xorout=0x0000 check=0xe5a3 name=(none)
width=16 poly=0x5313 init=0x0541 refin=false refout=false xorout=0x0000 check=0x16ee name=(none)
width = 16 poly = 0xd84d init = 0xcbb0 refin = false refout = false xorout = 0x0000 check = 0xd81f name =(none)
1和3
>reveng -w 16 -s DB97BD7F85C7 DB5BF51FA66F
width=16 poly=0xcfdb init=0x2152 refin=false refout=false xorout=0x0000 check=0x7c5f name=(none)
2和3
>reveng -w 16 -s DCC45CDFBF47 DB5BF51FA66F
width=16 poly=0x6319 init=0xce07 refin=false refout=false xorout=0x0000 check=0x358f name=(none)
为了它的价值,我还用SRP16进行了详尽的搜索。如您所见,SRP16发现了1和3,以及2和3的几个匹配(它只搜索数据1,然后检查另外2个)。结果如下:
===== Result parameter sets =====
CRC=$c791 Poly=$0a1f init=$51a7 xorout=$ffff refin=false refout=true
*** Third data set verified
CRC=$c791 Poly=$0a1f init=$560a xorout=$0000 refin=false refout=true
*** Third data set verified
CRC=$91c7 Poly=$24ab init=$4b77 xorout=$ffff refin=true refout=false
*** Third data set verified
CRC=$91c7 Poly=$24ab init=$f978 xorout=$0000 refin=true refout=false
*** Third data set verified
CRC=$91c7 Poly=$32c1 init=$58d2 xorout=$0000 refin=true refout=false
*** Third data set verified
CRC=$91c7 Poly=$32c1 init=$e604 xorout=$ffff refin=true refout=false
*** Third data set verified
CRC=$91c7 Poly=$4078 init=$19b0 xorout=$ffff refin=false refout=false
*** Second data set verified
CRC=$91c7 Poly=$4078 init=$31bf xorout=$ffff refin=false refout=false
*** Second data set verified
CRC=$91c7 Poly=$4078 init=$49ae xorout=$ffff refin=false refout=false
*** Second data set verified
CRC=$91c7 Poly=$4078 init=$61a1 xorout=$ffff refin=false refout=false
*** Second data set verified
CRC=$91c7 Poly=$4078 init=$9183 xorout=$ffff refin=false refout=false
*** Second data set verified
CRC=$91c7 Poly=$4078 init=$b98c xorout=$ffff refin=false refout=false
*** Second data set verified
CRC=$91c7 Poly=$4078 init=$c19d xorout=$ffff refin=false refout=false
*** Second data set verified
CRC=$91c7 Poly=$4078 init=$e992 xorout=$ffff refin=false refout=false
*** Second data set verified
CRC=$91c7 Poly=$45cf init=$12de xorout=$ffff refin=false refout=false
*** Second data set verified
CRC=$91c7 Poly=$45cf init=$78e7 xorout=$0000 refin=false refout=false
*** Second data set verified
CRC=$91c7 Poly=$4928 init=$0e97 xorout=$ffff refin=true refout=false
*** Third data set verified
CRC=$91c7 Poly=$4928 init=$27b2 xorout=$ffff refin=true refout=false
*** Third data set verified
CRC=$91c7 Poly=$4928 init=$5cdd xorout=$ffff refin=true refout=false
*** Third data set verified
CRC=$91c7 Poly=$4928 init=$75f8 xorout=$ffff refin=true refout=false
*** Third data set verified
CRC=$91c7 Poly=$4928 init=$8326 xorout=$ffff refin=true refout=false
*** Third data set verified
CRC=$91c7 Poly=$4928 init=$aa03 xorout=$ffff refin=true refout=false
*** Third data set verified
CRC=$91c7 Poly=$4928 init=$d16c xorout=$ffff refin=true refout=false
*** Third data set verified
CRC=$91c7 Poly=$4928 init=$f849 xorout=$ffff refin=true refout=false
*** Third data set verified
CRC=$91c7 Poly=$5b2b init=$d6b6 xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$5b2b init=$fa7d xorout=$0000 refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$5ff8 init=$0056 xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$5ff8 init=$2ba9 xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$5ff8 init=$57a8 xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$5ff8 init=$7c57 xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$5ff8 init=$8455 xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$5ff8 init=$afaa xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$5ff8 init=$d3ab xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$5ff8 init=$f854 xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$c791 Poly=$701f init=$c9e9 xorout=$0000 refin=false refout=true
*** Second data set verified
CRC=$c791 Poly=$701f init=$fa7c xorout=$ffff refin=false refout=true
*** Second data set verified
CRC=$c791 Poly=$723b init=$4239 xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$c791 Poly=$723b init=$da97 xorout=$0000 refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$7296 init=$6f03 xorout=$ffff refin=true refout=false
*** Third data set verified
CRC=$91c7 Poly=$7296 init=$d648 xorout=$ffff refin=true refout=false
*** Third data set verified
CRC=$91c7 Poly=$7598 init=$1faf xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$7598 init=$311c xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$7598 init=$42c9 xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$7598 init=$6c7a xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$7598 init=$8bd0 xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$7598 init=$a563 xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$7598 init=$d6b6 xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$7598 init=$f805 xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$868a init=$12de xorout=$ffff refin=false refout=false
*** Second data set verified
CRC=$91c7 Poly=$868a init=$d19b xorout=$ffff refin=false refout=false
*** Second data set verified
CRC=$91c7 Poly=$9232 init=$1faf xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$9232 init=$d6b6 xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$a4df init=$0bee xorout=$ffff refin=true refout=false
*** Third data set verified
CRC=$91c7 Poly=$a4df init=$1a23 xorout=$0000 refin=true refout=false
*** Third data set verified
CRC=$c791 Poly=$aa75 init=$16df xorout=$ffff refin=true refout=true
*** Second data set verified
CRC=$c791 Poly=$aa75 init=$c58b xorout=$0000 refin=true refout=true
*** Second data set verified
CRC=$91c7 Poly=$c732 init=$4b77 xorout=$ffff refin=true refout=false
*** Third data set verified
CRC=$91c7 Poly=$c732 init=$a8ee xorout=$ffff refin=true refout=false
*** Third data set verified
CRC=$91c7 Poly=$cbdd init=$6f03 xorout=$ffff refin=true refout=false
*** Third data set verified
CRC=$91c7 Poly=$cbdd init=$8ec3 xorout=$0000 refin=true refout=false
*** Third data set verified
CRC=$91c7 Poly=$cf54 init=$311c xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$cf54 init=$42c9 xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$cf54 init=$a563 xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$91c7 Poly=$cf54 init=$d6b6 xorout=$ffff refin=false refout=false
*** Third data set verified
CRC=$c791 Poly=$d143 init=$2b44 xorout=$ffff refin=true refout=true
*** Second data set verified
CRC=$c791 Poly=$d143 init=$754a xorout=$0000 refin=true refout=true
*** Second data set verified
CRC=$91c7 Poly=$e044 init=$19b0 xorout=$ffff refin=false refout=false
*** Second data set verified
CRC=$91c7 Poly=$e044 init=$61a1 xorout=$ffff refin=false refout=false
*** Second data set verified
CRC=$91c7 Poly=$e044 init=$9183 xorout=$ffff refin=false refout=false
*** Second data set verified
CRC=$91c7 Poly=$e044 init=$e992 xorout=$ffff refin=false refout=false
*** Second data set verified
CRC=$91c7 Poly=$ea2e init=$1ec6 xorout=$ffff refin=false refout=true
*** Second data set verified
CRC=$91c7 Poly=$ea2e init=$ebd1 xorout=$ffff refin=false refout=true
*** Second data set verified
CRC=$91c7 Poly=$edbc init=$27b2 xorout=$ffff refin=true refout=false
*** Third data set verified
CRC=$91c7 Poly=$edbc init=$5cdd xorout=$ffff refin=true refout=false
*** Third data set verified
CRC=$91c7 Poly=$edbc init=$aa03 xorout=$ffff refin=true refout=false
*** Third data set verified
CRC=$91c7 Poly=$edbc init=$d16c xorout=$ffff refin=true refout=false
*** Third data set verified
===== done =====