%is the remainder operator and not modulo
Ref: MDN
- Bitwise operators perform their operations on binary representations, but they return standard JavaScript numerical values.
- JavaScript does not have an unsigned int
- The operand of all bitwise operators are converted to singed 32-bit integers in two's complement format.
<<and>>operate on signed int whereas>>>operates as if the number is unsigned
- remove bitwise package dep
- add more tests for circular shifts and remove the extras
- refactor expand key