ASCII / ANSI Secret Key in Symmetric Encryption

Using an ASCII (or ANSI) secret key w/ symmetric encryption: AES, Blowfish, Twofish, RC2, 3DES, etc.

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Chilkat.Crypt2 crypt = new Chilkat.Crypt2();

bool success;
success = crypt.UnlockComponent("Anything for 30-day trial");
if (success != true) {
    MessageBox.Show("Crypt component unlock failed");
    return;
}

//  A frequent support question goes something like this:
//  ------------------
//  I am not able to decrypt strings encrypted using
//  cryptix.jce.provider.key.RawSecretKey (Java) like I would normally do.

// The key generation is being done with the Rijndael algorithm (256-bit)
//  The AES encryption algorithm is "Rijndael/ECB/PKCS#5"

//  The 32 character source key I'm using is this:
//  1234567890123456789012345678912
// 
//  ------------------
//  The customer tries to call GenerateSecretKey to
//  convert the 32-character source key to a binary secret key,
//  but this is incorrect (in this case).  GenerateSecretKey
//  hashes a string of any length and produces binary hash output
//  that is of the appropriate size to be used as a secret key.

//  The telltale sign is that in this case, the string is the exact
//  length of the secret key.  32 ANSI characters = 256 bits.
//  Therefore, it is obvious that the bytes of the binary
//  secret key should be the exact ascii character values
//  of the string.

string encKey;
encKey = "1234567890123456789012345678912";

crypt.CryptAlgorithm = "aes";
//  Mode is "ecb" or "cbc"
crypt.CipherMode = "ecb";
crypt.KeyLength = 256;

//  Call SetEncodedKey with "ascii" to tell the component
//  to use the ascii-bytes as the binary secret key.
//  Make sure you call this after setting the KeyLength.
crypt.SetEncodedKey(encKey,"ascii");

crypt.EncodingMode = "base64";
string text;
text = "The quick brown fox jumped over the lazy dog.";

//  Encrypt a string and return the binary encrypted data
//  in a base-64 encoded string.
string encText;
encText = crypt.EncryptStringENC(text);

textBox1.Text += encText + "\r\n";

//  Decrypt and show the original string:
string decryptedText;
decryptedText = crypt.DecryptStringENC(encText);

textBox1.Text += decryptedText + "\r\n";