Let: 1  K be a secret key. 2  C be a counter. 3  HMAC(K,C) = SHA1(K â 0x5c5câ¦ â¥ SHA1(K â 0x3636â¦ â¥ C)) with â as XOR, â¥ as concatenation, for more details see HMAC (C is the message)  Truncate be a function that selects 4 bytes from the result of the HMAC in a defined manner.
Homefacts City Report. Byars is located in Mcclain County, OK. The population is 152, making Byars the 8th largest city in Mcclain County. There are 1 public schools in Byars with an average Homefacts rating of NA. The total crime rate for Byars is very low, and there are 1 registered sex offenders residing in the city.
For population 15 years and over in Byars town: According to our research of Oklahoma and other state lists there was 1 registered sex offender living in Byars, Oklahoma as of April 02, 2017. The ratio of number of residents in Byars to the number of sex offenders is 257 to 1. Nearest city with pop. 50,000+: Norman, OK (31.9 miles , pop. 95,694).