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DES Key length

843811Jan 16 2009 — edited Jan 16 2009

I'm trying to create a DES cipher that will allow me to decipher text coming from a remote partner. They have given me the private key to use for decryption that is 16 bytes long. So I used the following code:

decryptCipher = Cipher.getInstance(CIPHER_NAME); //CIPHER_NAME="DES"
decryptCipher.init(Cipher.DECRYPT_MODE, key);

When I execute this I get:

Caused by: java.security.InvalidKeyException: Invalid key length: 16 bytes
        at com.sun.crypto.provider.DESCipher.engineGetKeySize(DashoA13*..)
        at javax.crypto.Cipher.b(DashoA13*..)
        ...

I'm a little mystified as to how to proceed. Can someone help?

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Locked on Feb 13 2009

Added on Jan 16 2009

#cryptography

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