[VicPiMakers Projects] Jim's Challenge - Output 10 (caesar cipher)

Sun Oct 11 18:46:15 EDT 2020

Ok, thanks.

Then there are two inputs; not just the data array. Question 10 implied a
second input will be provided.

On Sun., Oct. 11, 2020, 3:37 p.m. James Briante, <briantej at gmail.com> wrote:

> Hi Patrick,
> Here is the last sentence of the comment I posted today at 2:31 PM
> "The final test data will include a new string not “BIOPSY”.
>
> Jim
>
>
>
> On Sun, Oct 11, 2020 at 3:19 PM Patrick McMorris <patrick at mcmorris.ca>
> wrote:
>
>> Hello Jim,
>>
>> Your instructions are unclear and we're just asking you to clearly
>> address the issue.
>>
>> If you want our code to output the key used then either we assume the
>> word is the same or your next update also provides a new word in addition
>> to a new byte array.
>>
>> Which is it?
>>
>> On Sun., Oct. 11, 2020, 2:32 p.m. James Briante, <briantej at gmail.com>
>> wrote:
>>
>>> Craig, Patrick, Greg & Others,
>>>
>>> Note that the string “BIOPSY” is not part of the input data but included
>>> in the description of Output#10 in order to simplify things. If “BIOPSY”
>>> appears in your code, you have created an *implicit input* to simplify
>>> things. The final test data will include a new string not “BIOPSY”.
>>>
>>> Consider the implication of not having known the plaintext “BIOPSY”. One
>>>  solution would be to write separate code (not part of the solution to
>>> Challenge1) that sequentially reverses the encryption process. Why not
>>> do so and then just print 6 for Output #10?
>>>
>>> The above method requires human intervention in order to recognize
>>> meaningful words during the decryption process. Why not write code to
>>> remove the human out of the loop? Hopefully, that explains why the string
>>> *“BIOPSY*” was a good choice for Challenge 1.
>>>
>>> Jim
>>>
>>> On Sun, Oct 11, 2020 at 9:52 AM Michelle Wiboltt <
>>> michellewiboltt at outlook.com> wrote:
>>>
>>>> Also, instead of exclamation! ? for instance, why can’t these be
>>>> illustrated as musical notes so that we come to learn /to understand
>>>> tempo/crescendo/intent...plus, “music tames the savage beast”, non? So
>>>> wouldn’t we want to gift “those extraterrestrials” with this type of
>>>> advantage, which is really our advantage in that we set the tone:)
>>>>
>>>> ------------------------------
>>>> *From:* Projects <projects-bounces at vicpimakers.ca> on behalf of Greg H
>>>> <greg.horie at gmail.com>
>>>> *Sent:* Sunday, October 11, 2020 9:43:32 AM
>>>> *To:* Talk about Raspberry Pi / embeded projects <
>>>> projects at vicpimakers.ca>
>>>> *Subject:* Re: [VicPiMakers Projects] Jim's Challenge - Output 10
>>>> (caesar cipher)
>>>>
>>>> Nice one Eileen! Solving it in Scratch sounds like a challenge.
>>>>
>>>> Has anyone considered trying it in a pure functional language?
>>>>
>>>> https://en.wikipedia.org/wiki/Functional_programming
>>>> <https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FFunctional_programming&data=02%7C01%7C%7Cbe8d0cc14e5245e5aa3808d86e04ed6a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637380314727328950&sdata=h57KpB18orFr3DZDozsMp7Wuu3TI%2BAXKneLt2kXKMHE%3D&reserved=0>
>>>>
>>>>
>>>> On Sun, 11 Oct 2020 at 09:35, Michelle Wiboltt <
>>>> michellewiboltt at outlook.com> wrote:
>>>>
>>>> Is it a question of overthinking? Me, I see it as a question of “over”
>>>> feeling things - on steroids, no less and from here/there,  building a
>>>> “visual” conceptual foundation of these wonderfully warm feelings for all
>>>> to see/feel/utilize AND understand.
>>>>
>>>> It kind of needs to contain our existing or newly conceived of
>>>> “absolute love language”...like an and. And always conjoins so, what word,
>>>> string, etc? always conjoins the all of the all of us...then, we mirror our
>>>> movement with/by that spin around the world thing, same as our world,
>>>> non?
>>>>
>>>> ------------------------------
>>>> *From:* Projects <projects-bounces at vicpimakers.ca> on behalf of Eileen
>>>> Amirault <cody.eileen at gmail.com>
>>>> *Sent:* Sunday, October 11, 2020 9:23:54 AM
>>>> *To:* Talk about Raspberry Pi / embeded projects <
>>>> projects at vicpimakers.ca>
>>>> *Subject:* Re: [VicPiMakers Projects] Jim's Challenge - Output 10
>>>> (caesar cipher)
>>>>
>>>> Hey everyone,
>>>>
>>>> Just solved challenge #1 using Scratch. Hope the new ‘Test’ data will
>>>> work just as well. Intend on showing you what I did at the end of my
>>>> presentation on Oct 24.
>>>>
>>>> Have a nice week,
>>>> Eileen
>>>>
>>>> On Oct 11, 2020, at 9:15 AM, Michelle Wiboltt <
>>>> michellewiboltt at outlook.com> wrote:
>>>>
>>>> Ok, but there IS a watermark? thing...so, this needs to be illustrated
>>>> meaning, if we’re creating a love �� language we want that to show in its
>>>> entirety AND if “bad” people “break” in...aren’t they just asking to be
>>>> included? wouldn’t it be a wanting but not knowing how to be a part of this
>>>> fabulousity that is the (our) language of love �� So, if they “break” in
>>>> doesn’t it stand to reason they were left out. Isn’t that our bad?
>>>>
>>>> Also, a language of love would have to be, would need to, continually
>>>> fortified in order for it to remain foundation-ally strong, right white
>>>> lights? And, its strength comes from our ever evolving
>>>> understanding/feeling/sensing/knowing of what our hearts are truly capable
>>>> of and then, illustrating this in the majesty that WILL be our code that
>>>> You all create, see?
>>>>
>>>> Also, just a thought, what about that bit coin spin around the world
>>>> tor thing...if we built our foundation on something like this wouldn’t this
>>>> keep any nasty extraterrestrials at bay but wouldn’t it also, keep us ALL
>>>> contained herein, safely.
>>>> m
>>>>
>>>> ------------------------------
>>>> *From:* Projects <projects-bounces at vicpimakers.ca> on behalf of
>>>> Patrick McMorris <patrick at mcmorris.ca>
>>>> *Sent:* Sunday, October 11, 2020 8:34:44 AM
>>>> *To:* Talk about Raspberry Pi / embeded projects <
>>>> projects at vicpimakers.ca>
>>>> *Subject:* Re: [VicPiMakers Projects] Jim's Challenge - Output 10
>>>> (caesar cipher)
>>>>
>>>> I agree it's not that clear.
>>>>
>>>> If the goal to be able to simply run the existing code on new input
>>>> bytes then yes, "BIOPSY" is always the decrypted word since the byte array
>>>> is the only given input. If the word changes, that hasn't been specified
>>>> where that input would come from. So, either it doesn't change or the
>>>> description of the second input is missing.
>>>>
>>>> But using a hard-coded word doesn't sound terribly interesting to code
>>>> up. You could still write your key finding function to accept two strings
>>>> of equal length and output the required caesar key. Then for question #10,
>>>> call it with the word you extract from the input array and the hard-coded
>>>> target word and write the output key. Then the problem is hard-coded but
>>>> your code is more generic.
>>>>
>>>>
>>>> Patrick
>>>>
>>>> On Sun., Oct. 11, 2020, 8:01 a.m. Greg H, <greg.horie at gmail.com> wrote:
>>>>
>>>> For me, the confusion is that we're intended to write code to derive
>>>> the cipher key value. I did this and came up with an answer, but this key
>>>> is only relevant "HOUVYE" / "BIOPSY".
>>>>
>>>> So should I take this key and make it a constant for future inputs /
>>>> encryptions? That's what I ended up doing with my final code submission.
>>>>
>>>> I took out the code that solved the problem because unused code seems
>>>> like lint to me, but maybe I should put it back to show how I did it.
>>>>
>>>>
>>>> On Sat, 10 Oct 2020 at 17:45, James Briante <briantej at gmail.com> wrote:
>>>>
>>>> Hi Patrick,
>>>>  Yes, you can look at only the first character of the string and use it
>>>> to get the key. Comparing all characters as the advantage of catching
>>>> errors in encryption/decryption. The code is just as short using
>>>> "compare strings"  of your particular language.
>>>>
>>>> In C int strcmp (const char* str1, const char* str2);, in C++ *int*
>>>> *CompareText*(*const* AnsiString *S1*, *const* AnsiString *S2*);
>>>> Pascal ( Delphi) *function* *CompareText*(*const* *S1*: *string*;
>>>> *const* *S2*: *string*): Integer;
>>>>
>>>> Aside: The purpose of the final test data is to see if your outputs are
>>>> correct when you run your code with the new data. It should work the first
>>>> time with no changes in the actual code.
>>>> Jim
>>>>
>>>> On Sat, Oct 10, 2020 at 4:46 PM George Bowden <gtbowdeng at gmail.com>
>>>> wrote:
>>>>
>>>> Hi Michelle
>>>> If you are on a laptop or computer using chrome, you can hold down the
>>>> CTRL key and tap the letter u .  There are things further back than that
>>>> but its a start.  As for ink marks showing through, we try to avoid that
>>>> because it usually reveals security holes that the bad people exploit.
>>>>
>>>> On Sat, Oct 10, 2020 at 1:23 PM Michelle Wiboltt <
>>>> michellewiboltt at outlook.com> wrote:
>>>>
>>>> Please help:)
>>>> Here’s where my crazy comes in, see this image...
>>>> <Image.jpeg>
>>>> Ok.
>>>>
>>>> Now, if u could think in terms of front back / embroidery and its front
>>>> back...
>>>> So, above is a code interface? But where is the back front and back?
>>>> Front would be the website, right? So, when I do online shopping, that’s
>>>> the front. Where is the back view of the front of the website?
>>>>
>>>> Another example, when writing in ink it can show through the backside
>>>> when held to the light, kind of thing is what I’m trying to understand?
>>>> Where’s that on the internet?
>>>>
>>>> Thx
>>>> m
>>>>
>>>> Michelle Wiboltt
>>>> www.elb1b69.net
>>>> <https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.elb1b69.net%2F&data=02%7C01%7C%7Cbe8d0cc14e5245e5aa3808d86e04ed6a%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637380314727328950&sdata=LwqWQoRGJqX8ioMprkuE9VwBOb3JfvgsIpAG0kxAYFs%3D&reserved=0>
>>>> 604-612-2505
>>>>
>>>> ------------------------------
>>>> *From:* Projects <projects-bounces at vicpimakers.ca> on behalf of Greg H
>>>> <greg.horie at gmail.com>
>>>> *Sent:* Saturday, October 10, 2020 8:56:49 AM
>>>> *To:* projects at vicpimakers.ca <projects at vicpimakers.ca>
>>>> *Subject:* [VicPiMakers Projects] Jim's Challenge - Output 10 (caesar
>>>> cipher)
>>>>
>>>> I'm looking for clarification on output 10 - caesar cipher problem.
>>>>
>>>> Is the intent to calculate the caesar cipher key value OR is the intent
>>>> to encrypt the string with a pre-determined key? Initially I thought the
>>>> question was to discover the cipher key value, but on reflection this seems
>>>> fragile.
>>>>
>>>> Reasoning:
>>>> - "BIOPSY" will work for the 12 integer input that leads to "HOUVYE",
>>>> but it will not work for any 12 random integers.
>>>> - You'd have to reverse engineer your integers starting from "BIOPSY"
>>>> to get a valid set of 12 integers.
>>>>
>>>> I solved it both ways, but posted only the 2nd solution to github
>>>> because only the 2nd solution will work for a random set of 12 integers.
>>>>
>>>> I'm curious how other folks solved this one.
>>>>
>>>> --
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>>>>
>>>>
>>>>
>>>> --
>>>> George Bowden, vice president, Victoria Computer Club
>>>> gtbowdeng at gmail.com
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