| P |
a password encoded as a Unicode UTF-8 string |
| S |
a random initializing value |
| c |
a number of iterations of algorithm, a positive integer |
| dkLen |
a length in octets of derived key, a positive integer |
| DK |
a derived key of length dkLen |
| Bn |
a set of all octet strings of length n, n >= 0;
if n = 0, then the set Bn consists of an empty string of length 0 |
| A||C |
a concatenation of two octet strings A, C, i.e.,
a vector from B|A|+|C|, where the left subvector from B|A|
is equal to the vector A and the right subvector from B|C| is
equal to the vector C: A = (an1,...,a1) in Bn1 and C =
(cn2,..., c1) in Bn2, res = (an1,...,a1,cn2,...,
c1) in Bn1+n2) |
| \xor |
a bit-wise exclusive-or of two octet strings of the same length |
| MSBnr: Bn -> Br |
a truncating of an octet string to size r by
removing the least significant n-r octets:
MSBnr(an,...,an-r+1,an-r,...,a1) =(an,...,an-r+1)
|
| LSBnr: Bn -> Br |
a truncating of an octet string to size r by
removing the most significant n-r octets:
LSBnr(an,...,an-r+1,an-r,...,a1) =(ar,...,a1)
|
| Int(i) |
a four-octet encoding of the integer i =< 232: (i1, i2, i3, i4) in B4, i = i1 + 28 * i2 +
216 * i3 + 224 * i4 |
| b[i, j] |
a substring extraction operator, extracts octets i through j, 0 =< i =< j |
| CEIL(x) |
the smallest integer greater than or equal to x |