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.
CANADIAN COUNTY. Situated in west-central Oklahoma, Canadian County is bounded by Kingfisher County on the north, Oklahoma and Cleveland counties on the east, Grady County on the south, Caddo County to the southwest, and Blaine County to the northwest.