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ChainHash Definitions

chain variable
a variable taking value in the set of all bit strings of a specified length.
block
a bit string of a specified length.
compression function
a function from the product space of the domains of a specified set of chain variables and the set of all blocks of a specified length to the product space of the domains of the chain variables.
initial value
an explicitly specified point in the product space of the domains of a set of chain variables.
padding algorithm
an algorithm which appends bits to a bit string giving a new bit string whose length has some desired propery.
chain hash function
a function constructed from a compression function, padding algorithm, and an initial value in such a manner as to have the following properties:

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