AS-LEA 1.10
Command line program for encryption of files
Screenshot of AS-LEA 1.10
A command line program for encryption and decryption of files. The program uses a 256-bit LEA-256 (in CTR mode [1]).
The program uses a key strengthening algorithm [2], this increases the security.
The program stores an encrypted checksum [3] of the original file, which is verified at decryption.
The program delivers an ErrorLevel code [4] which indicates success (0) or failure (1).
The speed is measured and the program will display the results for you when it's done.
Use the parameter "-NoPercent" to display the number of Bytes that has been processed instead of percent.
Important information: Save the downloaded program if you have information encrypted with it. I do not guarantee compatibility between different versions/revisions of the program.
Speed Reference: Approximately 80 MB/sec. (Intel Core i3-9100) [5]
> Download AS-LEA 1.10 (Zip, 523 kB)
Revision Date: 2020-10-20.
License: Freeware.
Unicode Support: Yes.
Program Type: Portable, x64.
Operating System(s): Windows 7 (SP1+), 8.1 and 10. (Also Windows Server 2012 R2 and 2016.)
Language(s): Only English.
[1] Counter mode, a block cipher mode used to make a stream cipher of a block cipher. In this program, a 128-bit random nonce is used, which is fetched from Microsoft Crypto API. (RANDOM.DLL)
[2] The key strengthening algorithm is using SHA3-256 and executes 131,072 times. (KSA.DLL)
[3] The encrypted checksum is a CRC-64-ECMA.
[4] The ErrorLevel code can be useful when calling from batch files or other programs.
[5] The speed reference is measured under good conditions, a fast disk and a pretty large file.
AS-ARC5 · AS-ARC6 · AS-ISAAC64 · AS-LEA · AS-QuadCAST
Copyright © 1998-2020, Andreas Jönsson. All rights reserved.
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