The Scientific World Journal / 2014 / Article / Figbox 3

Research Article

Password-Only Authenticated Three-Party Key Exchange Proven Secure against Insider Dictionary Attacks

Box 3

Deciding
Given a string and a tuple , first checks if the bit-length of is
equal to the bit-length of key derivation strings. If it is, then checks that (1) is
a prefix of and (2) where is a -bit string that is a suffix of . If both
are true, then .

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