Securestring 3.0 a cryptosystem for blind computing on encrypted character strings

Abstract

If (electronic) computations need to be undertaken, then mostly performance or commercial aspects lead to the selection for an optimal executing computer. In case the beneficiary of the computation upshots does not wholly confide in any computers except his ones, trust becomes his major decision criterion instead. Blind computing can do the trick to (re)win the beneficiary’s confidence. This paper ameliorates the well-known cryptosystem SecureString 2.0 concerning privacy through pangram ciphertexts and referring integrity through secret sharing. The emerging cryptosystem of this amelioration is called SecureString 3.0 that facilities blind computing on encrypted character strings through an untrusted host.