MPC8536-RDK Freescale Semiconductor, MPC8536-RDK Datasheet - Page 505
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MPC8536-RDK
Manufacturer Part Number
MPC8536-RDK
Description
BOARD REF COMEXPRESS MPC8536
Manufacturer
Freescale Semiconductor
Series
PowerQUICC ™r
Type
MPUr
Datasheets
1.MPC8536EBVTAVLA.pdf
(127 pages)
2.MPC8536EBVTAVLA.pdf
(1706 pages)
3.MPC8536-RDK.pdf
(2 pages)
Specifications of MPC8536-RDK
Contents
CSB1880, CSB1801, Cables, Documentation, Enclosure, Power Supply with cord
For Use With/related Products
MPC8536
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 505 of 1706
- Download datasheet (15Mb)
Context for CCM Cipher Mode
The SEC AESU is capable of performing single pass encryption and MAC generation. The host is required
to order the CCM context in such a way that the context can be fetched as a contiguous string into the
context registers, prior to encryption/MAC generation or decryption/MAC validation. The context register
contents for CCM cipher mode is summarized in
Freescale Semiconductor
Table 10-31. AESU Context Registers for Modes Providing Confidentiality and Integrity (continued)
AES-CCM mode does not support zero-length AAD and zero-length
payload simultaneously. Either the AAD length or the payload length must
be at least 1 byte.
* Must be written at start of new message, except if zero
** Needed only in ICV mode—must be written at start of new CCM decryption
*** The Header and MAC Sizes are internally constructed by the AES engine; then, that
C
T
— don’t care
length of total data (in bits)
length of data processed with current descriptor (in bits)
information is included inside context register 7 for context switching purposes
MPC8536E PowerQUICC III Integrated Processor Reference Manual, Rev. 1
Context Register #
(byte address)
10 (0x34148)
11 (0x34150)
12 (0x34158)
3 (0x34110)
4 (0x34118)
5 (0x34120)
6 (0x34128)
7 (0x34130)
8 (0x34138)
9 (0x34140)
Cipher Mode providing Confidentiality and Integrity
Counter Modulus Exponent*
(header size/ MAC size)***
Encrypted MAC** /
Encrypted Counter
Decrypted MAC /
NOTE
Figure 10-30
Counter*
CCM
—
—
—
and further described below.
Received MAC**
len(AAD)
len(AAD)
Counter
len(IV)
len(IV)
GCM
Y
0
C
T
C
T
Security Engine (SEC) 3.0
10-75
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