Dynamic Symmetric Key Mobile Commerce Scheme Based on Self-Verified Mechanism

Table 1

Comparison of performance of RSA and ECC.

Break time/MIPS	RSA key length/bit	ECC key length/bit	RSA/ECC key length ratio
10^4	512	106	5 : 1
10^8	768	132	6 : 1
10^12	1 024	160	7 : 1
10^20	2 048	210	10 : 1
10^78	21 000	600	35 : 1