Re: Testing XTEA


Mike Simpson wrote:
Hi,

I hope somebody can point me in the right direction. I have written a short
assembly language routine to
perform Xtea encryption, but unfortunately it doesn't give the output
expected by the "Test Vectors for
TEA and XTEA". This may be due to my program being rubbish, or because I
have misunderstood the
vectors.

What I need then is a a simple 64 bit of unencrypted data, the resulting
encrypted string, the 128 bit key
used for the encryption and the number of Feistel rounds used to encrypt it.

Various libraries have xtea source in them. LibTomCrypt (libtom.org)
is one of them.

Though, may I ask why you're using XTEA as opposed to something like
AES?

Tom

.

Relevant Pages

  • Re: Testing XTEA
    ... TEA and XTEA". ... used for the encryption and the number of Feistel rounds used to encrypt it. ... regarding the endianness. ...
    (sci.crypt)
  • Re: Testing XTEA
    ... Mike Simpson wrote: ... TEA and XTEA". ... used for the encryption and the number of Feistel rounds used to encrypt ...
    (sci.crypt)
  • Re: Testing XTEA
    ... TEA and XTEA". ... used for the encryption and the number of Feistel rounds used to encrypt ... endednedness dependant. ...
    (sci.crypt)
  • Re: The importance of IVs
    ... back to the original question for this thread regarding freeware ... >>Blowfish encryption that uses IVs. ... > Trying test vectors on a program is almost useless, ...
    (sci.crypt)
  • Re: Figuring out table based encryption in assembly
    ... > encryption algorithm for license info. ... the internet for the specifications for the different algorithms. ... specifications will generally contain test vectors; ... vectors into the unknown algorithm and see if the output matches. ...
    (comp.lang.asm.x86)