Texas Instruments SimpleLink CC2620 Technical Reference Manual page 827

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10.1.7.1.2 Terminology
This manual makes frequent use of certain terms. These terms refer to structures that the crypto core
uses for operations.
External memory: A memory that is externally attached to the crypto core AHB master port, and only
accessible using DMAC operations
Slave interface (host processor bus): Interface of the crypto core that is used by the host processor to
read or write registers of the engine
Tag or digest: Two interchangeable terms that indicate the result of an authentication operation. Term
digest is used for regular hash operations, while tag is used for authenticated encryption operations (AES-
CCM).
Crypto context: A collection of parameters that define the crypto operation: mode, key, IV, and so forth
10.1.7.1.3 Formulas and Nomenclature
This document contains formulas and nomenclature for different data types. The presentation of syntax is
given as follows:
(1)
31:0 indicates a size of 32 bits with most significant bit 31 and least significant bit 0. 11:3 indicates a size of 9 bits with most
significant bit 11 and least significant bit 3.
10.1.7.2 Compliances
AES encryption in ECB and CBC modes complies with FIPS-197.
SWCU117C – February 2015 – Revised September 2015
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0x00 or 0h
0b
0d
0
1
bit
8 bits
16 bits
32 bits
64 bits
128 bits
MOD
REM
A & B
A OR B
NOR
NOT A
A NOR B
AB
XNOR
NAND
DIV
||
[n:m]
Copyright © 2015, Texas Instruments Incorporated
AES Cryptoprocessor Overview
Hexadecimal value
Binary value
Decimal value
Digital logic 0 or LOW
Digital logic 1 or HIGH
Binary digit
1 byte
Half word
Word
Dual-word
Quad-word
Modulo
Remainder
A Logical AND B
A Logical OR B
Logical NOR
Logical NOT
A logical NOR B
A logic exclusive OR B or XOR
logic exclusive NOR
Logical NAND
Integer division
Concatenation
Size of a register or signal in bits where n > m
2 (1)
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