| 詳細(xì)參數(shù) | |||
|---|---|---|---|
| 品牌 | A-B | 型號(hào) | 1326AB-B515E-21-K5 |
| 額定功率 | 3.5 | 最大轉(zhuǎn)速 | 3200 |
| 產(chǎn)品類(lèi)型 | 伺服電機(jī) | 額定電壓 | 460V |
| 額定電流 | 其他 | 額定轉(zhuǎn)速 | 3200 |
| 額定轉(zhuǎn)矩 | 其他 | 加工定制 | 否 |
| 外形尺寸 | 18.00x8.50x9.00 | ||
Allen Bradley MPL-B4540F-MJ22AA 伺服電機(jī) 3ph 3.5hp 3000rpm 10.2nm 460v-ac
狀況：新
品牌：艾倫布拉德利
模型：1326AB-B515E-21-K5
階段：3PH
力量：2.44 千瓦
轉(zhuǎn)速：3200 轉(zhuǎn)
軸外徑：
扭矩：114.100507604716 NM
電壓（交流）：不適用
電壓（直流）：24 伏直流
發(fā)貨地：廈門(mén)
重量：59.25 磅
方面：18.00 x 8.50 x 9.00
It can be obtained by the use of AES [9] or 3DES [7] ciphering algorithms. Neither of both has been reported to be cracked until today. For the new security specification the option chosen has been AES. The reason is that upon a careful comparison with 3DES it was b that under many scenarios AES is less costly than 3DES. Another fact is that AES is recommended by IEEE and that it is believed to be more robust than 3DES.
AES is a block cipher. To achieve confidentiality in messages of arbitrary length there are five options [10] called modes of operation. From these possible modes of operation the one chosen was the CTR mode because it can be perbed in parallel (CFM and OFM modes do not allow this). Also it avoids some problems from the simpler ECB mode, it is well known and trusted (it has been used for more than 20 years) and does not raise Inblectual Property Rights (IPR) concerns as OCB does.B- Stronger integrity.
From the variety of mechanisms generating a Message Integrity Check (MIC) the ones that support integrated confidentiality and integrity are specially interesting because they use one algorithm for both functions, thing that may avoid hardware and software costs. So the decision was to use AES for both functions: confidentiality and MIC generation. The chosen b to perb
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