The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package pbkdf2 import ( "crypto/internal/fips140" "crypto/internal/fips140/hmac" "errors" ) // divRoundUp divides x+y-1 by y, rounding up if the result is not whole. // This function casts x and y to int64 in order to avoid cases where // x+y would overflow int on systems where int is an int32. The result // is an int, which is safe as (x+y-1)/y should always...