Small piece of python code to C#. Can you help?

Hello experts,

I am usually good at understanding new programming languages but I can't port this code to C# since I haven't messed with C# AES encryption before. Basically, I wanted to port this small piece of code to C#. It grabs 2 pieces of information and it creates a key.

try:
    from Crypto.Cipher import AES
except ImportError:
    AES = None

def normalize_name(name):
    return ''.join(x for x in name.lower() if x != ' ')

def generate_keyfile(name, ccn, outpath):
    name = normalize_name(name) + '\x00'
    ccn = ccn + '\x00'
    name_sha = hashlib.sha1(name).digest()[:16]
    ccn_sha = hashlib.sha1(ccn).digest()[:16]
    both_sha = hashlib.sha1(name + ccn).digest()
    aes = AES.new(ccn_sha, AES.MODE_CBC, name_sha)
    crypt = aes.encrypt(both_sha + ('\x0c' * 0x0c))
    userkey = hashlib.sha1(crypt).digest()
    with open(outpath, 'wb') as f:
        f.write(userkey.encode('base64'))
    return userkey

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