Cryptanalysis and Performance Evaluation of Enhanced Threshold Proxy Signature Scheme Based on RSA for Known Signers

Table 4

(a) Security levels of the RSA module on a 90 MHz Pentium platform. (b) Security levels of the RSA module on a 255 MHz digital AlphaStation.

(a)

Security; level	Encrypt; (blks/sec)	Decrypt; (blks/sec)	Create; Key (sec)
512 bit	370	42	0.45
768 bit	189	15	1.5
1024 bit	116	7	3.8

(b)

Security; level	Encrypt; (blks/sec)	Decrypt; (blks/sec)	Create; Key (sec)
512 bit	1020	125	0.26
768 bit	588	42	0.59
1024 bit	385	23	1.28