You've already forked lazarus-ccr
109 lines
3.2 KiB
Plaintext
109 lines
3.2 KiB
Plaintext
|
This archive contains AES (Advanced Encryption Standard) related Pascal /
|
||
|
|
Delphi sources: basic AES routines and recommended block cipher modes of
|
||
|
|
operation (with test programs that verify compilation and results).
|
||
|
|
|
||
|
|
The block level routines supply separate units for encryption and decryption.
|
||
|
|
The source code for basic encryption/decryption is split into several include
|
||
|
|
files. At the lowest level there are type definitions and common routines. Key
|
||
|
|
sizes of 128, 192, and 256 bits are supported.
|
||
|
|
|
||
|
|
The following recommended block cipher modes of operation are implemented:
|
||
|
|
CBC, CFB128, CFB8, CTR, ECB, OFB, OMAC, CMAC, CCM, EAX, GCM, and XTS. All
|
||
|
|
chaining modes allow plain and cipher text lengths that need not be multiples
|
||
|
|
of the block length (for ECB and CBC cipher text stealing is used for the
|
||
|
|
short block; only one short block is allowed and there must be at least one
|
||
|
|
full block). CTR mode can use 4 built-in incrementing functions or a user
|
||
|
|
supplied one, and provides seek functions for random access reads.
|
||
|
|
|
||
|
|
All routines have been included in the AES_DLL.DLL, there are two interface
|
||
|
|
units for this DLL (one for Virtual Pascal, the second for the other Win32
|
||
|
|
compilers).
|
||
|
|
|
||
|
|
Since the July 2006 release there are conditional defines to support
|
||
|
|
compressed tables: one 2K encryption table (calculated with t_mkctab) replaces
|
||
|
|
the four 1K tables (same for decryption, here the inverse SBox is no longer
|
||
|
|
needed). Besides using less static memory, compressed tables are considered as
|
||
|
|
a countermeasure against cache timing attacks.
|
||
|
|
|
||
|
|
W.Ehrhardt, Nov. 2017
|
||
|
|
http://wolfgang-ehrhardt.de
|
||
|
|
|
||
|
|
-------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
Last changes:
|
||
|
|
|
||
|
|
Nov. 2017
|
||
|
|
- FPC/ARM and Delphi Tokyo adjustments
|
||
|
|
|
||
|
|
Sep. 2015
|
||
|
|
- Constant time verification/compare for the all-in-one packet
|
||
|
|
functions (aes_eax, aes_gcm, aes_ccm)
|
||
|
|
|
||
|
|
Jan. 2013
|
||
|
|
- Adjustments (test programs) for D17 (XE3), {$J+} if needed
|
||
|
|
|
||
|
|
Dec. 2012
|
||
|
|
- Small 64-bit adjustments (separate BIT64 include statements in
|
||
|
|
aes_decr and aes_encr; improved aes_gcm)
|
||
|
|
|
||
|
|
July 2012
|
||
|
|
- 64-bit adjustment for GCM
|
||
|
|
|
||
|
|
Oct. 2010
|
||
|
|
- Galois/Counter Mode (GCM)
|
||
|
|
- Fix PPP unit for TP5
|
||
|
|
|
||
|
|
Aug. 2010
|
||
|
|
- Message length ILen has now type longint
|
||
|
|
- New PPP unit (Perfect Paper Passwords)
|
||
|
|
|
||
|
|
June 2010
|
||
|
|
- AES_CTR_Seek functions
|
||
|
|
|
||
|
|
July 2009
|
||
|
|
- Delphi 2009 (D12) adjustments
|
||
|
|
|
||
|
|
May 2009
|
||
|
|
- Counter with CBC-MAC (CCM) mode
|
||
|
|
|
||
|
|
Nov. 2008
|
||
|
|
- Uses the BTypes unit for better portability
|
||
|
|
|
||
|
|
Aug. 2008
|
||
|
|
- All-in-one EAX functions for encrypt / authenticate and decrypt / verify:
|
||
|
|
decryption is performed only if the verification was successful.
|
||
|
|
- Range check safe IncProcs for FPC -dDebug
|
||
|
|
|
||
|
|
Jan. 2008
|
||
|
|
New unit aes_cfb8 implementing the 8 bit CFB mode
|
||
|
|
|
||
|
|
Oct. 2007
|
||
|
|
- New unit aes_xts implementing the XTS mode from the IEEE P1619 Draft Standard
|
||
|
|
for Cryptographic Protection of Data on Block-Oriented Storage Devices.
|
||
|
|
|
||
|
|
June 2007
|
||
|
|
- AES-CMAC-PRF-128 from RFC 4615
|
||
|
|
- New EAX context name
|
||
|
|
|
||
|
|
Nov. 2006
|
||
|
|
- Contributed AES256 file crypt/authenticate unit
|
||
|
|
|
||
|
|
July 2006
|
||
|
|
- CMAC mode, compressed tables as a countermeasure against cache timing attacks
|
||
|
|
|
||
|
|
Jul. 2004
|
||
|
|
- EAX mode, AES DLL, new demo programs
|
||
|
|
|
||
|
|
Jun. 2004
|
||
|
|
- OMAC mode on AES page
|
||
|
|
|
||
|
|
Mar. 2004
|
||
|
|
- Significant speedup of AES key generation
|
||
|
|
|
||
|
|
Jan. 2004
|
||
|
|
- New faster AES routines
|
||
|
|
|
||
|
|
Dec. 2003
|
||
|
|
- First version of AES archive released
|
||
|
|
|