AES 标准的英文版
目录如下：
Table of Contents
1. INTRODUCTION............................................................................................................................................. 5
2. DEFINITIONS .................................................................................................................................................. 5
2.1 GLOSSARY OF TERMS AND ACRONYMS ........................................................................................................... 5
2.2 ALGORITHM PARAMETERS, SYMBOLS, AND FUNCTIONS ................................................................................. 6
3. NOTATION AND CONVENTIONS............................................................................................................... 7
3.1 INPUTS AND OUTPUTS ..................................................................................................................................... 7
3.2 BYTES ............................................................................................................................................................. 8
3.3 ARRAYS OF BYTES .......................................................................................................................................... 8
3.4 THE STATE ...................................................................................................................................................... 9
3.5 THE STATE AS AN ARRAY OF COLUMNS ........................................................................................................ 10
4. MATHEMATICAL PRELIMINARIES ....................................................................................................... 10
4.1 ADDITION ...................................................................................................................................................... 10
4.2 MULTIPLICATION .......................................................................................................................................... 10
4.2.1 Multiplication by x .............................................................................................................................. 11
POLYNOMIALS WITH COEFFICIENTS IN GF(28) .............................................................................................. 12
4.3
5. ALGORITHM SPECIFICATION................................................................................................................. 13
5.1 CIPHER .......................................................................................................................................................... 14
5.1.1 SubBytes()Transformation............................................................................................................ 15
5.1.2 ShiftRows() Transformation ........................................................................................................ 17
5.1.3 MixColumns() Transformation...................................................................................................... 17
5.1.4 AddRoundKey() Transformation .................................................................................................. 18
5.2 KEY EXPANSION ........................................................................................................................................... 19
5.3 INVERSE CIPHER............................................................................................................................................ 20
5.3.1 InvShiftRows() Transformation ................................................................................................. 21
5.3.2 InvSubBytes() Transformation ................................................................................................... 22
5.3.3 InvMixColumns() Transformation............................................................................................... 23
5.3.4 Inverse of the AddRoundKey() Transformation............................................................................. 23
5.3.5 Equivalent Inverse Cipher .................................................................................................................. 23
6. IMPLEMENTATION ISSUES ...................................................................................................................... 25
6.1 KEY LENGTH REQUIREMENTS ....................................................................................................................... 25
6.2 KEYING RESTRICTIONS ................................................................................................................................. 26
6.3 PARAMETERIZATION OF KEY LENGTH, BLOCK SIZE, AND ROUND NUMBER ................................................. 26
6.4 IMPLEMENTATION SUGGESTIONS REGARDING VARIOUS PLATFORMS ........................................................... 26
APPENDIX A - KEY EXPANSION EXAMPLES ................................................................................................ 27
A.1 EXPANSION OF A 128-BIT CIPHER KEY .......................................................................................................... 27
A.2 EXPANSION OF A 192-BIT CIPHER KEY .......................................................................................................... 28
A.3 EXPANSION OF A 256-BIT CIPHER KEY .......................................................................................................... 30
APPENDIX B – CIPHER EXAMPLE.................................................................................................................... 33
APPENDIX C – EXAMPLE VECTORS................................................................................................................ 35
C.1 AES-128 (NK=4, NR=10).............................................................................................................................. 35
C.2 AES-192 (NK=6, NR=12).............................................................................................................................. 38
C.3 AES-256 (NK=8, NR=14).............................................................................................................................. 42
APPENDIX D - REFERENCES.............................................................................................................................. 47
- 1
- 2
前往页