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參數(shù)資料
| 型號(hào)： | ST22XJ64 |
| 英文描述： | EPROM IC; Memory Size:1Mbit; Memory Configuration:1M x 1; Package/Case:8-DIP; Supply Voltage Nom, Vcc:5V; Mounting Type:Through Hole; Voltage Rating:3.3V |
| 中文描述： | 微控制器 |
| 文件頁(yè)數(shù)： | 2/7頁(yè) |
| 文件大?。?/td> | 109K |
| 代理商： | ST22XJ64 |
2/7
ST22XJ64
CRYPTOGRAPHY PERFORMANCE
The following table provides the cryptographic
performances of the ST22XJ64.
DESCRIPTION
The ST22XJ64
is a member of the SmartJ plat-
form using a 32-bit Reduced Instruction Set Com-
puter (RISC) core to execute both Native RISC in-
structions and JavaCard 2.1 Technology in-
struction (bytecodes) directly. See
Figure 1
“SmartJ Platform Architecture”, on page 3
.
– Direct JavaCard bytecode execution pro-
vides high performance advantage over proc-
essors that emulate the JavaCard bytecode
instruction set.
– The ST22XJ64 features a 24-bit wide linear ad-
dressing capability and includes 96 KBytes of
User ROM, 4 KBytes of User RAM and
64 KBytes of User EEPROM.
Memory and Peripheral accesses are control-
led by a
Memory Protection Unit
that allows to
implement firewalls between applications.
Volatile memory and non-volatile memory are
accessed via two different buses, allowing si-
multaneous accesses to code and data.
Memory load and stores can be performed at
byte, short (2-bytes), or word (4-bytes) granu-
larity, with optional pointer auto increment.
– The ST22 core includes dedicated DES instruc-
tions for Secret Key cryptography, and a fast
Multiply and Accumulate instruction for Public
Key cryptography (RSA) and Elliptic Curve
cryptography. The ST22 core also includes
specific instructions for security, such as clear
all general purpose registers in a single cycle.
– The ST22XJ64 has clock and power manage-
ment, 2 User configurable Timers, a Central In-
terrupt Controller and a Random Number
Generator.
Table 1
Cryptographic Performances
Algorithm
Function
Time
1)
130 ms
380 ms
5 ms
780 ms
15 ms
1)
2)
Internal clock at 33 MHz
CRT: Chinese Reminder Theorem
RSA
1024 bits
Signature with CRT
Signature without CRT
2)
Verification (e=0x10001)
Signature with CRT
Verification (e=0x10001)
Triple (with keys loaded)
Single (with keys loaded)
RSA
2048 bits
DES
15 μs
4
4
4
4
Wafer
Micromodule
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