Encoding / Decoding a simple string

[koandy1983]

Hello!

Let's say I have these rows:

174,2,232,100,26,173,129,95,86,228,105,175,48,169,236,66,147,181,23,125,227,113  - here we have ASCII code for characters in encoded string
h t t p : / / w w w . a l l i e d i t . r o - this is the original string

40,7,16,86,172,12,51,208,200,103,206,111,250,5,120,98,77,178 - and , the same, ASCII code for characters in encoded string
o f f i c e @ a l l i e d i t . r o - again, this is the original string

As you can see, length of encoded string is equal with length of the original.

Witch is the algorithm ?

I have studied for 3 days, and I can't to it.

Please help!

PS. Ignore the spaces between the characters in the original string; i have put then because I don't want to be interpreted as spam.

[primexx]

that's just ASCII code for the letters...it even tells you.

[koandy1983]

  Primexx said:

that's just ASCII code for the letters...it even tells you.

There I have 2 examples.

In that examples, first row is encrypted string with ASCII chars, and second row is original string (of course, every letter has won ASCII code).

I think it's encoded with a key, because strings that are the same in original text, in the first example and second, and the encoded pattern is not the same in the crypted string.

I'm sure that is the same encoding key for both examples, if that key exists (but I dought, because if it was a encoding key, the pattern in the same position will result the same ASCII char (code)); outside the algorithm is pure mathematics, but I can't figure out.

[nvme]

is this for a class? if so it would probably be best to look at what algorithms you've been studying.

[noroom]

  Primexx said:

that's just ASCII code for the letters...it even tells you.

No. 2 ≠ 232, but t = t (in "http").

koandy1983, figuring out the encryption method used is very hard. I think it's likely that you have some kind of information that we don't.

[primexx]

  noroom said:

No. 2 ≠ 232, but t = t (in "http").

hm...yea i seem to have misread the question