參數(shù)資料
型號(hào): 4450HG/3-K
廠商: EXAR CORP
元件分類: 微控制器/微處理器
英文描述: MICROPROCESSOR, PBGA324
封裝: ROHS COMPLIANT, HSBGA-324
文件頁(yè)數(shù): 15/92頁(yè)
文件大小: 780K
代理商: 4450HG/3-K
4450 – Data Sheet, DS-0131-06
Page 22
Hifn Confidential
3.2 Public Key Performance
Table 3-2. Public Key Performance (200 MHz Operation)
4450 Operation at 200 MHz
Operations/second vs. Key Length (bits)
2048
1024
768
512
RSA private key
40
300
660
1840
RSA public key (3-bit
exponent)
940
1600
5440
9920
Diffie-Hellman (180-bit
exponent)
50
200
333
733
DSA sign
140
540
N/A
DSA verify
60
220
N/A
Note
1. Performance numbers assume a uniform distribution of ones and zeros in the exponent.
Actual performance varies with the Hamming weight of the exponent.
2. Performance numbers assume that the public key module has unrestricted access to
memory. Actual performance varies with the memory usage of other system components.
3. DSA sign/verify is normally only defined for a 1024-bit modulus.
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