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must use weak key in 3desHi,
I am trying to convert this Java code into C#: JAVA: SecretKeySpec systemKey = new SecretKeySpec("TEST KEYTEST KEYTEST KEY".getBytes(), "TripleDES"); Cipher cipher = Cipher.getInstance(DESEDE_ECB_NONE); cipher.init(Cipher.ENCRYPT_MODE, systemKey); byte[] eac = cipher.doFinal(cardRandom); //CardRandom is a byte-array I have tried various approaches, but everytime I get stuck at the same point: I am not allowed to use "TEST KEYTEST KEYTEST KEY" in TripleDES, as it is a wek key. Does anyone see how to convert the above Java-code ? I will be very thankfull ! Found the solution myself:
I need to use DES, not TripleDES. One TripleDES with "TEST KEYTEST KEYTEST KEY" is apparently the same as three DES with "TEST KEY". Logical when you think about it... Show quoteHide quote "Steen" wrote: > Hi, > > I am trying to convert this Java code into C#: > > JAVA: > SecretKeySpec systemKey = new SecretKeySpec("TEST KEYTEST KEYTEST > KEY".getBytes(), "TripleDES"); > Cipher cipher = Cipher.getInstance(DESEDE_ECB_NONE); > cipher.init(Cipher.ENCRYPT_MODE, systemKey); > byte[] eac = cipher.doFinal(cardRandom); //CardRandom is a byte-array > > I have tried various approaches, but everytime I get stuck at the same point: > I am not allowed to use "TEST KEYTEST KEYTEST KEY" in TripleDES, as it is a > wek key. > > Does anyone see how to convert the above Java-code ? > > I will be very thankfull ! > > 
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