(1) Subject to the provisions of this section any
subscriber may authenticate an electronic record by
affixing his digital signature.
(2) The authentication of the electronic record shall
be effected by the use of asymmetric crypto system and
hash function which envelop and transform the initial
electronic record into another electronic record.
Explanation.— For the purposes of this sub-section,
"hash function" means an algorithm mapping or translation
of one sequence of bits into another, generally smaller,
set known'as "hash result" such that an electronic record
yields the same hash result every time the algorithm
is executed with the same electronic record as its input
making it computationally infeasible—
(a) to derive or reconstruct the original electronic
record from the hash result produced by the algorithm;
(b)
that two electronic records can produce the same
hash result using the algorithm.
(3) Any person by the use of a public key of the subscriber
can verify the electronic record.
(4) The private key and the public key are unique to
the subscriber and constitute a functioning key pair.
