system: You are an expert security code reviewer. You will be shown a source code file along with a catalog of candidate CWE (Common Weakness Enumeration) categories with their official MITRE names. Your task is to list every distinct CWE from that catalog that is actually present in the code. The catalog is comprehensive for this dataset -- the answer is a (possibly small) subset of it.

OUTPUT FORMAT: Respond with a comma-separated list of CWE IDs in the form `CWE-N`, sorted in ascending numeric order, wrapped in a single \boxed{...}. Examples: `\boxed{CWE-79}` for one, `\boxed{CWE-22,CWE-79,CWE-327}` for three. Output the boxed answer ONLY -- no explanation, no other text.

user: ```python
import hashlib
import os
from cryptography.exceptions import InvalidSignature
from cryptography.hazmat.backends import default_backend
from cryptography.hazmat.primitives import hashes
from cryptography.hazmat.primitives.asymmetric import padding, rsa


def get_key_pair(key_size=512):
    """
    Returns (public key, private key) pair with default key size of 512 bytes.
    """
    private_key = rsa.generate_private_key(
            public_exponent=65537,
            key_size=key_size,
            backend=default_backend()
        )
    public_key = private_key.public_key()
    return public_key, private_key


def sign(message, private_key):
    """Signs a message with an RSA private key.
    Args:
        message             string or bytes to sign
        private_key         RSA private key
    """
    if type(message) == str:
        message = message.encode()

    signature = private_key.sign(
        message,
        padding.PSS(
            mgf=padding.MGF1(hashes.SHA256()),
            salt_length=padding.PSS.MAX_LENGTH
        ),
        hashes.SHA256()
    )
    return signature


def verify_signature(message, signature, public_key):
    """Returns whether or not signature/public key matches expected message hash
    Args:
        message         original message
        signature       signed message
        public_key      RSA public key used to verify signature
    """
    if type(message) == str:
        message = message.encode()
    try:
        public_key.verify(
            signature,
            message,
            padding.PSS(
                mgf=padding.MGF1(hashes.SHA256()),
                salt_length=padding.PSS.MAX_LENGTH
            ),
            hashes.SHA256()
        )
    except InvalidSignature as e:
        raise e
    except Exception as e:
        raise Exception('Unexpected error: {}'.format(e))


def get_str_hash(s):
    m = hashlib.sha256()
    m.update(s.encode())
    return m.hexdigest()


def get_formatted_time_str(date_obj):
    """Returns a string representation of a date object as Y-M-D H:M
    Args:
        date_obj        datetime object
    """
    return date_obj.strftime("%Y-%m-%d %H:%M")


def get_input_of_type(message, expected_type, allowed_inputs=None):
    """Generic function to receive user input of an expected type and restrict to a subset of inputs.
    Args:
        message             message to display to prompt user for input
        expected_type       type of input expected
        allowed_inputs      iterable of allowed input values
    """
    while True:
        try:
            user_input = expected_type(input(message))
            if allowed_inputs:
                if user_input in allowed_inputs:
                    break   # correct input type and part of allowed inputs
                print('Unexpected input')
                continue
            break
        except (ValueError, TypeError):
            print("Wrong type of input")
    return user_input


def clear_screen():
    """Clears terminal screen"""
    os.system('cls||clear')
```

Candidate CWE catalog (every CWE that appears anywhere in this dataset):
  - CWE-20: Improper Input Validation
  - CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  - CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
  - CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
  - CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
  - CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
  - CWE-94: Improper Control of Generation of Code ('Code Injection')
  - CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
  - CWE-116: Improper Encoding or Escaping of Output
  - CWE-117: Improper Output Neutralization for Logs
  - CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
  - CWE-209: Generation of Error Message Containing Sensitive Information
  - CWE-215: Insertion of Sensitive Information Into Debugging Code
  - CWE-295: Improper Certificate Validation
  - CWE-312: Cleartext Storage of Sensitive Information
  - CWE-326: Inadequate Encryption Strength
  - CWE-327: Use of a Broken or Risky Cryptographic Algorithm
  - CWE-377: Insecure Temporary File
  - CWE-502: Deserialization of Untrusted Data
  - CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
  - CWE-611: Improper Restriction of XML External Entity Reference
  - CWE-614: Sensitive Cookie in HTTPS Session Without 'Secure' Attribute
  - CWE-643: Improper Neutralization of Data within XPath Expressions ('XPath Injection')
  - CWE-730: OWASP Top Ten 2004 Category A9 - Denial of Service
  - CWE-732: Incorrect Permission Assignment for Critical Resource
  - CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
  - CWE-918: Server-Side Request Forgery (SSRF)
  - CWE-943: Improper Neutralization of Special Elements in Data Query Logic
  - CWE-1004: Sensitive Cookie Without 'HttpOnly' Flag
  - CWE-1333: Inefficient Regular Expression Complexity

List every distinct CWE from the catalog above that is actually present in this code.
Answer: CWE-326