Research Article
A Secure Fair Exchange for SMS-Based Mobile Payment Protocols Based on Symmetric Encryption Algorithms with Formal Verification
| | Protocol | Storage cost |
| | [1] | (1)+(2)+(3)+(4)=(80+80+160+24)+(80+160+64)+(80+24=104)+(24+80)=856n |
| | [5] | (1)+(2)+(3)+(4)=(160)+(64+160+80)+(64+48)+(64)=640n |
| | [6] | (1)+(2)+(3)= (128)+(160+80+104+160+64+128)+(80+80+128+128)=1240n |
| | [7] | (1)+(2)+(3)=(80+128+80+128+80+128+80+128)+(128+128+128+80+128+128+128+80)+(80+64+128+128+80+160)=2400n |
| | [8] | (1)+(2)+(3)=(40+80+128+24)+(128+128+64+160)+(128)=880n |
| | [3] | (1)+(2)+(3)=(80+80+160)+(80+160+64)+(80)=704n |
| | [9] | (1)+(2)+(3)=(80+80+160)+(80+160+64)+(80)=704n |
| | [25] | (1)+(2)+(3)=(80+128+128+80+80+128+128+80)+(128+128+128+80+80+80+128+128+128+80+80+80)+
(128+80+128+128+80+128)=2752n |
| | Making Payment | (1)+(2)=(80+80+80+160+80+160+160)+(48+24+40+160+160+160+160+160)=1712n |
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