clojure-aes.shared — clojure-aes 0.1.2

combine-four-bytes clj

(combine-four-bytes byte-array)

Takes an array of four bytes, and combines them into a single word.

ffAdd clj

(ffAdd byte1 byte2)

Adds two bytes in a finite field via xor operation.

ffmultiply clj

(ffmultiply byte-a byte-b)

Multiplies two bytes (8 bits apiece) together in a finite field.

msb-1? clj

(msb-1? byte)

Determines if the most significant bit in the byte is 1.

number-of-32bit-words-in-key clj

(number-of-32bit-words-in-key num-bits)

Computes the number of 32-bit words in the key.

number-of-rounds clj

(number-of-rounds num-bits)

Computes the number of rounds based on the number of bits passed in.

separate-four-bytes clj

(separate-four-bytes word)

Takes a word (4 bytes) and returns a vector with each individual byte of the word.

xtime clj

(xtime byte-in)

Multiplies a byte by two in a finite field, bit-xoring if the high bit is set.