Dlms encrypt-decrypt command line tool

With this tool you can perform these operation:

• Generate encrypted APDU
• Decrypt APDU
• Authenticate APDU
• Generate encryption key

Installation

Use pip:

pip install setup.py

Use pypi:

pip install dlms-cli

Usage

Encrypt

Example
System Title = 5249435249435249
Frame Counter = 80000001
Encryption Key = 454E4352595054494F4E4B45594B4559
Authentication Key = 41555448454E5449434154494F4E4B45
APDU = c001810001000060010aff0200

dlms_cli -e 5249435249435249 80000001 454E4352595054494F4E4B45594B4559 41555448454E5449434154494F4E4B45 c001810001000060010aff0200

Result

Encrypted/Decrypted APDU: 0de63f2331a09aa85e8830f5f3
Authentication TAG: 610d47e1e24b14e8a022aefc6a43f3a3

Decrypt

Example
System Title = 5249435249435249
Frame Counter = 80000001
Encryption Key = 454E4352595054494F4E4B45594B4559
Authentication Key = 41555448454E5449434154494F4E4B45
APDU = 0de63f2331a09aa85e8830f5f3

dlms_cli -d 5249435249435249 80000001 454E4352595054494F4E4B45594B4559 41555448454E5449434154494F4E4B45 0de63f2331a09aa85e8830f5f3

Result

Encrypted/Decrypted APDU: c001810001000060010aff0200
Authentication TAG: 977d4d21b7255a1b681fe6b1c902a7dc

Generate authenticated data

Example
System Title = 5249435249435249
Frame Counter = 00000001
Encryption Key = 454E4352595054494F4E4B45594B4559
Authentication Key = 41555448454E5449434154494F4E4B45
APDU = 0de63f2331a09aa85e8830f5f3

dlms_cli -a 5249435249435249 00000001 454E4352595054494F4E4B45594B4559 41555448454E5449434154494F4E4B45 0de63f2331a09aa85e8830f5f3

Result

TAG: 62d423292e0fe5320370881d

Generate encryption key

Example

dlms_cli -k

Result

Encryption Key: 08f418ad55d89f38388a7e379b16353f

Dependency

cryptography

License

MIT