Research Article
A Secure Fair Exchange for SMS-Based Mobile Payment Protocols Based on Symmetric Encryption Algorithms with Formal Verification
Table 5
SMS overhead of our protocols.
| | Session | SMS Overhead |
| | | Bytes | % 7-Bit ASCII (160 Byte) | % 8-Bit ASCII (140 Byte) |
| | Purchase Credit | | | |
| | M1 | 96 | 60 | 68.75 |
| | M4 | 88 | 55 | 62.85 |
| | Making Payment | | | |
| | M1 | 126 | 78.75 | 90 |
| | M7 | 112 | 70 | 80 |
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