* Add integers, wrapping at 2^32. This uses 16-bit operations internally * to work around bugs in some JS interpreters.

* Calculate the MD5 of a raw string

* Calculate the HMAC-MD5, of a key and some data (raw strings)

* Calculate the SHA-1 of an array of big-endian words, and a bit length

* Convert a raw string to an arbitrary string encoding

* Convert a raw string to a base-64 string

* Convert a raw string to a hex string

* Convert a raw string to an array of big-endian words * Characters >255 have their high-byte silently ignored.

* Calculate the MD5 of an array of little-endian words, and a bit length.

* Bitwise rotate a 32-bit number to the left.

* Convert an array of big-endian words to a string

* Convert a raw string to an array of little-endian words * Characters >255 have their high-byte silently ignored.

* Convert an array of little-endian words to a string

* These functions implement the four basic operations the algorithm uses.