Motorola DigitalDNA MPC180E User Manual page 7

Paragraph
Number
7.1 Operational Registers.......................................................................................... 7-1
7.1.1 PKEU Version Identification Register (PKID) .............................................. 7-1
7.1.2 Control Register (PKCR)................................................................................ 7-2
7.1.3 Status Register (PKSR)................................................................................... 7-3
7.1.4 Interrupt Mask Register (PKMR) ................................................................... 7-4
7.1.5 EXP(k) Register.............................................................................................. 7-6
7.1.6 Program Counter Register (PC)...................................................................... 7-6
7.1.7 Modsize Register ............................................................................................ 7-7
7.1.8 EXP(k)_SIZE.................................................................................................. 7-7
7.2 Memories ............................................................................................................ 7-7
7.3 ECC Routines ..................................................................................................... 7-8
7.3.1 ECC Fp Point Multiply ................................................................................... 7-8
7.3.2 ECC Fp Point Add ........................................................................................ 7-11
7.3.3 ECC Fp Point Double ................................................................................... 7-12
7.3.4 ECC Fp Modular Add................................................................................... 7-13
7.3.5 ECC Fp Modular Subtract ............................................................................ 7-14
7.3.6 ECC Fp Montgomery Modular Multiplication ((A × B × R-1) mod N) ...... 7-15
7.3.7 ECC Fp Montgomery Modular Multiplication ((A × B × R-2) mod N) ...... 7-16
7.3.8 ECC F2
7.3.9 ECC F2
7.3.10 ECC F2
7.3.11 ECC F2
7.3.12 ECC F2
7.3.13 ECC F2
7.4 RSA Routines ................................................................................................... 7-25
7.4.1 (A × R
RSA Montgomery Modular Multiplication ((A × B × R-1) mod N)............ 7-27
7.4.2
7.4.3 RSA Montgomery Modular Multiplication((A × B × R-2) mod N)............. 7-28
7.4.4 RSA Modular Add ........................................................................................ 7-29
7.4.5 RSA Fp Modular Subtract ............................................................................ 7-30
7.5 Miscellaneous Routines .................................................................................... 7-31
7.5.1 Clear Memory ............................................................................................... 7-31
2
7.5.2 R mod N Calculation................................................................................... 7-32
7.5.3 R R mod P Calculation .............................................................................. 7-33
p N
7.6 Embedded Routine Performance ...................................................................... 7-35
PRELIMINARY-SUBJECT TO CHANGE WITHOUT NOTICE
CONTENTS
Title
Chapter 7
Public Key Execution Unit
m
Polynomial-Basis Point Multiply ................................................. 7-17
m
Point Add...................................................................................... 7-19
m
Point Double................................................................................ 7-21
m
Add (Subtract) ............................................................................. 7-22
m
Montgomery Modular Multiplication ((A × B × R-1) mod N) ... 7-23
m
Montgomery Modular Multiplication ((A × B × R-2) mod N) ... 7-24
-1 EXP
) mod N .................................................................................... 7-25
Contents
Page
Number
-vii