M2Crypto

v0.48.0 suspicious
6.0
Medium Risk

A Python crypto and SSL toolkit

🤖 AI Analysis

Final verdict: SUSPICIOUS

The package shows signs of potentially legitimate functionality mixed with concerning behaviors, such as shell execution and passphrase handling, which could indicate risks if not properly managed.

  • shell risk due to subprocess calls
  • credential risk from passphrase prompts
Per-check LLM notes
  • Network: The network patterns indicate standard socket connections which may be part of the package's intended functionality.
  • Shell: The shell execution patterns suggest use of subprocess calls which could be legitimate for operations like SDK path retrieval or compilation flags, but warrant further investigation to ensure no unauthorized actions.
  • Obfuscation: The use of eval and string concatenation to set 'ec_curve' variable is suspicious but may be part of the library's functionality.
  • Credentials: Passphrase prompts indicate potential handling of sensitive information, which could be legitimate for encryption purposes but also raises concerns about secure handling.

🔬 Heuristic Checks

⚠ Outbound Network Calls score 3.0

Found 2 network call pattern(s)

  • try: self.socket.connect(address) except socket.error as why: if
  • SOCK_STREAM) self.socket.connect(address) self.unix = 1 else:
⚠ Code Obfuscation score 2.0

Found 1 obfuscation pattern(s)

  • 9_62_" + curve ec_curve = eval("EC.NID_%s" % curve) pvtkeyfilename = "%spvtkey.pem" %
⚠ Shell / Subprocess Execution score 8.0

Found 4 shell execution pattern(s)

  • mmand) # fd = os.popen (command, 'rt') # return pipe_channel (fd) #
  • sdk_path = ( subprocess.check_output(["xcrun", "--show-sdk-path"]).decode().strip() )
  • cflags.split() pid = subprocess.Popen( cpp + ["-Wp,-v", "-"], stdin=open(o
  • ] pid = subprocess.Popen( cmd, stdin=subproce
⚠ Credential Harvesting score 7.5

Found 3 credential access pattern(s)

  • iv = inf.read(10) pp = getpass.getpass("Enter decryption passphrase: ") else: iv = Rand.rand_by
  • ) outf.write(iv) pp = getpass.getpass("Enter encryption passphrase: ") pp2 = getpass.getpass("
  • tion passphrase: ") pp2 = getpass.getpass("Enter passphrase again: ") if pp != pp2: raise
✓ Typosquatting

No typosquatting candidates detected

✓ Registered Email Domain

Email domain looks legitimate: sandbox.rulemaker.net

✓ Suspicious Page Links

All external links appear legitimate

✓ Git Repository History

No GitHub repository linked

  • No GitHub repository link found
⚠ Maintainer History score 2.0

1 maintainer concern(s) found

  • Author "Ng Pheng Siong" appears to have only 1 package on PyPI (new or inactive account)
✓ Known CVE Vulnerabilities

No known vulnerabilities found in OSV database.

💡 AI App Starter Prompt

Use this prompt to build a project with M2Crypto 
Your task is to develop a secure messaging application called 'CryptoChat' using Python, which leverages the M2Crypto library for cryptographic operations. This application will allow users to send encrypted messages over a network connection, ensuring that only the intended recipient can read them. Here’s a detailed breakdown of what your application should include and how you will utilize M2Crypto:

1. **User Authentication**: Users must create an account by providing a username and password. Passwords should be securely hashed before storing them in a simple file-based database (for simplicity). Use M2Crypto to hash passwords using a strong hashing algorithm like SHA-256.

2. **Encryption and Decryption**: Implement RSA encryption for message exchanges. When a user sends a message, it should be encrypted using the recipient's public key before being sent. Only the recipient, who has the corresponding private key, can decrypt the message using M2Crypto's RSA module.

3. **Message History**: Each user should have a history of their conversations. Messages should be stored in a simple SQLite database. Ensure that messages are stored in an encrypted format to protect user privacy even when at rest.

4. **Real-Time Communication**: Utilize a simple server-client architecture where the server acts as a mediator between clients. Clients can connect to the server to send and receive messages. For real-time communication, consider using sockets or a lightweight framework like Flask-SocketIO for web-based interaction.

5. **Additional Features**:
   - **File Transfer**: Allow users to send files securely, ensuring that files are also encrypted with the recipient's public key.
   - **Key Exchange**: Implement a mechanism for securely exchanging keys between users, possibly using Diffie-Hellman key exchange provided by M2Crypto.
   - **Self-Destructing Messages**: Introduce an option where messages can be set to self-destruct after a certain period, enhancing security.

In summary, CryptoChat should provide a robust platform for secure communication, leveraging M2Crypto for all cryptographic needs. Your challenge is to design and implement a functional prototype that showcases these capabilities.