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参数资料
| 型号： | MPC185TD |
| 厂商： | Motorola, Inc. |
| 英文描述： | Security Processor |
| 中文描述： | 安全处理器 |
| 文件页数： | 10/12页 |
| 文件大小： | 227K |
| 代理商： | MPC185TD |
10
MPC185 Security Processor Technical Summary
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
7.7 Random Number Generator (RNG)
The RNG is a digital integrated circuit capable of generating 32-bit random numbers. It is designed to
comply with FIPS 140-1 standards for randomness and non-determinism.
Because many cryptographic algorithms use random numbers as a source for generating a secret value (a
nonce), it is desirable to have a private RNG for use by the MPC185. The anonymity of each random number
must be maintained, as well as the unpredictability of the next random number. The FIPS-140 ‘common
criteria’ compliant private RNG allows the system to develop random challenges or random secret keys. The
secret key can thus remain hidden from even the high-level application code, providing an added measure
of physical security.
7.8 32KB General Purpose RAM (gpRAM)
The MPC185 contains 32KB of internal general purpose RAM that can be used to store keys, IVs and data.
The internal scratchpad allows the user to store frequently used context on chip which increases system
performance by minimizing setup time. This feature is especially important when dealing with small
packets and in systems where bus bandwidth is limited.
8 Performance Estimates
Bulk encryption/authentication performance estimates shown in Table 8-1 include data/key/context reads
(from memory to MPC185), security processing (internal to MPC185), and writes of completed
data/context to memory by MPC185, using typical 60x system overhead.
The MPC185 supports single pass processing of encryption/message authentication. All performance
measurements assume standard memory latency, and unconstrained use of an 83Mhz, 64-bit bus utilizing
the 60x bus protocol.
9 Revision History
Table 9-1 summarizes the revision history of this document.
Table 8-1. Estimated Bulk Data Encryption Performance (Mbps)
DES
CBC
3DES
CBC
AES 128
AES 256
ARC4
MD5
SHA-1
Kasumi
3DES/
HMAC-
SHA-1(Rx)
64 byte
204
168
180
153
102
177
162
93
138
128 byte
355
260
281
239
176
311
279
104
237
256 byte
562
358
391
332
279
472
411
230
350
512 byte
815
449
489
415
404
636
540
316
459
1024 byte
1051
513
557
473
521
770
639
391
544
1536 byte
1164
538
585
497
595
828
681
426
579
F
Freescale Semiconductor, Inc.
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| MPC18730EP | 功能描述:线性稳压器 - 标准 POWER MGT IC RoHS:否 制造商:STMicroelectronics 输出类型: 极性: 输出电压:1.8 V 输出电流:150 mA 负载调节: 最大输入电压:5.5 V 线路调整率: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOT-323-5L |
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