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.
Sebastian County is a county located in the U.S. state of Arkansas. As of the 2010 census, the population was 125,744, making it the fourth-most populous county in Arkansas.The county has two county seats, Greenwood and Fort Smith. Sebastian County is part of the Fort Smith, AR-OK Metropolitan Statistical Area.ebastian County is Arkansas's 56th county, formed on January 6, 1851, and named for William K. Sebastian, United States Senator from Arkansas.