1['15. Secure electronic signature.--
An electronic signature shall be deemed to be a secure electronic signature if--
(i) the signature creation data, at the time of affixing signature, was under the exclusive control of signatory and no other person; and
(ii) the signature creation data was stored and affixed in such exclusive manner as may be prescribed.
Explanation.-- In case of digital signature, the "signature creation data" means the private key of the subscriber.]
___________________
1. Substituted vide Information Technology (Amendment) Act, 2008 Prior to substitution text read as under :-
If, by application of a security procedure agreed to by the parties concerned, it can be verified that a digital signature, at the time it was affixed, was--
(a) unique to the subscriber affixing it;
(b) capable of identifying such subscriber;
(c) created in a manner or using a means under the exclusive control of the subscriber and is linked to the electronic record to which it relates in such a manner that if the electronic record was altered the digital signature would be invalidated.
then such digital signature shall he deemed to be a secure digital signature.