rules:
- id: insufficient-dsa-key-size
  patterns:
  - pattern-either:
    - pattern: cryptography.hazmat.primitives.asymmetric.dsa.generate_private_key(..., key_size=$SIZE, ...)
    - pattern: cryptography.hazmat.primitives.asymmetric.dsa.generate_private_key($SIZE, ...)
  - metavariable-comparison:
      metavariable: $SIZE
      comparison: $SIZE < 2048
  message: >-
    Detected an insufficient key size for DSA. NIST recommends
    a key size of 2048 or higher.
  metadata:
    cwe: 'CWE-326: Inadequate Encryption Strength'
    owasp: 'A3: Sensitive Data Exposure'
    source-rule-url: https://github.com/PyCQA/bandit/blob/b1411bfb43795d3ffd268bef17a839dee954c2b1/bandit/plugins/weak_cryptographic_key.py
    references:
    - https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-57Pt3r1.pdf
    category: security
    technology:
    - cryptography
  languages: [python]
  severity: WARNING