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Feb 12, 2024, 8:30:41 PMFeb 12

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Deos anyone how what encryption is being used here?

*1234567890ABCDEF01234567890ABCDEF0123456

--

Member - Liberal International This is doc...@nk.ca Ici doc...@nk.ca

Yahweh, King & country!Never Satan President Republic!Beware AntiChrist rising!

Look at Psalms 14 and 53 on Atheism ; unsubscribe from Google Groups to be seen

The ignorant won't rest until everyone is as dumb as they are. -unknown Beware https://mindspring.com

*1234567890ABCDEF01234567890ABCDEF0123456

--

Member - Liberal International This is doc...@nk.ca Ici doc...@nk.ca

Yahweh, King & country!Never Satan President Republic!Beware AntiChrist rising!

Look at Psalms 14 and 53 on Atheism ; unsubscribe from Google Groups to be seen

The ignorant won't rest until everyone is as dumb as they are. -unknown Beware https://mindspring.com

Feb 13, 2024, 10:44:33 AMFeb 13

to

On 2024-02-13 02:30, The Doctor wrote:

> Deos anyone how what encryption is being used here?

>

> *1234567890ABCDEF01234567890ABCDEF0123456

>

Probably a one time pad customized to generating this particular
> Deos anyone how what encryption is being used here?

>

> *1234567890ABCDEF01234567890ABCDEF0123456

>

"ciphertext" for a specific plaintext. Of cause, this can only

be done by knowing the message before the key is chosen, thus

making it equally easy to just share the plaintext over that key

distribution channel .

Enjoy

Jakob

--

Jakob Bohm, CIO, Partner, WiseMo A/S. https://www.wisemo.com

Transformervej 29, 2860 Søborg, Denmark. Direct +45 31 13 16 10

This public discussion message is non-binding and may contain errors.

WiseMo - Remote Service Management for PCs, Phones and Embedded

Feb 13, 2024, 3:43:12 PMFeb 13

to

On 2/12/2024 5:30 PM, The Doctor wrote:

> Deos anyone how what encryption is being used here?

>

> *1234567890ABCDEF01234567890ABCDEF0123456

None? lol. just kidding. Humm...
> Deos anyone how what encryption is being used here?

>

> *1234567890ABCDEF01234567890ABCDEF0123456

Some combination of plaintext, secret key and cipher algorithm generated

it. Probably, the plaintext was hand crafted? ;^)

Feb 13, 2024, 11:46:06 PMFeb 13

to

'hand craft' a one-time-pad to generate exactly this output from that

message. The usual issues with getting the OTP to Bob so Bob can

decrypt still apply.

Feb 14, 2024, 3:22:57 PMFeb 14

to

On 2/13/2024 8:45 PM, Rich wrote:

> In sci.crypt Chris M. Thomasson <chris.m.t...@gmail.com> wrote:

>> On 2/12/2024 5:30 PM, The Doctor wrote:

>>> Deos anyone how what encryption is being used here?

>>>

>>> *1234567890ABCDEF01234567890ABCDEF0123456

>>

>> None? lol. just kidding. Humm...

>>

>> Some combination of plaintext, secret key and cipher algorithm

>> generated it. Probably, the plaintext was hand crafted? ;^)

>

> As Jacob correctly pointed out, if one knows the message, one can then

> 'hand craft' a one-time-pad to generate exactly this output from that

> message.

Or even the other way around? If one knows the OTP (Bob and/or Alice),
> In sci.crypt Chris M. Thomasson <chris.m.t...@gmail.com> wrote:

>> On 2/12/2024 5:30 PM, The Doctor wrote:

>>> Deos anyone how what encryption is being used here?

>>>

>>> *1234567890ABCDEF01234567890ABCDEF0123456

>>

>> None? lol. just kidding. Humm...

>>

>> Some combination of plaintext, secret key and cipher algorithm

>> generated it. Probably, the plaintext was hand crafted? ;^)

>

> As Jacob correctly pointed out, if one knows the message, one can then

> 'hand craft' a one-time-pad to generate exactly this output from that

> message.

they can create a special plaintext that generates this output for fun.

> The usual issues with getting the OTP to Bob so Bob can

> decrypt still apply.

Feb 15, 2024, 2:02:22 PMFeb 15

to

Chris M. Thomasson wrote:

> On 2/13/2024 8:45 PM, Rich wrote:

> > In sci.crypt Chris M. Thomasson <chris.m.t...@gmail.com>

> > wrote:

> >> On 2/12/2024 5:30 PM, The Doctor wrote:

> >>> Deos anyone how what encryption is being used here?

> >>>

> >>> *1234567890ABCDEF01234567890ABCDEF0123456

> >>

> >> None? lol. just kidding. Humm...

> >>

> >> Some combination of plaintext, secret key and cipher algorithm

> >> generated it. Probably, the plaintext was hand crafted? ;^)

> >

> > As Jacob correctly pointed out, if one knows the message, one can

> > then 'hand craft' a one-time-pad to generate exactly this output

> > from that message.

>

> Or even the other way around? If one knows the OTP (Bob and/or

> Alice), they can create a special plaintext that generates this

> output for fun.

How would you do this? I mean the OP IMHO does not show an encrypted
> On 2/13/2024 8:45 PM, Rich wrote:

> > In sci.crypt Chris M. Thomasson <chris.m.t...@gmail.com>

> > wrote:

> >> On 2/12/2024 5:30 PM, The Doctor wrote:

> >>> Deos anyone how what encryption is being used here?

> >>>

> >>> *1234567890ABCDEF01234567890ABCDEF0123456

> >>

> >> None? lol. just kidding. Humm...

> >>

> >> Some combination of plaintext, secret key and cipher algorithm

> >> generated it. Probably, the plaintext was hand crafted? ;^)

> >

> > As Jacob correctly pointed out, if one knows the message, one can

> > then 'hand craft' a one-time-pad to generate exactly this output

> > from that message.

>

> Or even the other way around? If one knows the OTP (Bob and/or

> Alice), they can create a special plaintext that generates this

> output for fun.

string, done with an OTP. OTPs nature is that it does not include

patterns and is totally random.

Even if this string is not encrypted and only encoded, how would one

get such pattern from plain text and convert it back to plain text?

It had been best if the OP had posted a reference URL ...

Regards

Stefan

--

----Ed25519 Signature----

924d68b09939ff530a360fb2865c20195c09f0c0278c1e189d9a2ec3d036d252

c1fb0947cde91b30f3a85319c063eb0d72fce5b739a2bd9ea09bc55bb65e4e01

Feb 15, 2024, 2:52:04 PMFeb 15

to

In sci.crypt Stefan Claas <pol...@tilde.club> wrote:

> Chris M. Thomasson wrote:

>

>> On 2/13/2024 8:45 PM, Rich wrote:

>> > In sci.crypt Chris M. Thomasson <chris.m.t...@gmail.com>

>> > wrote:

>> >> On 2/12/2024 5:30 PM, The Doctor wrote:

>> >>> Deos anyone how what encryption is being used here?

>> >>>

>> >>> *1234567890ABCDEF01234567890ABCDEF0123456

>> >>

>> >> None? lol. just kidding. Humm...

>> >>

>> >> Some combination of plaintext, secret key and cipher algorithm

>> >> generated it. Probably, the plaintext was hand crafted? ;^)

>> >

>> > As Jacob correctly pointed out, if one knows the message, one can

>> > then 'hand craft' a one-time-pad to generate exactly this output

>> > from that message.

>>

>> Or even the other way around? If one knows the OTP (Bob and/or

>> Alice), they can create a special plaintext that generates this

>> output for fun.

>

> How would you do this?

For a traditional, 1940's substution style OTP, it is trivial:
> Chris M. Thomasson wrote:

>

>> On 2/13/2024 8:45 PM, Rich wrote:

>> > In sci.crypt Chris M. Thomasson <chris.m.t...@gmail.com>

>> > wrote:

>> >> On 2/12/2024 5:30 PM, The Doctor wrote:

>> >>> Deos anyone how what encryption is being used here?

>> >>>

>> >>> *1234567890ABCDEF01234567890ABCDEF0123456

>> >>

>> >> None? lol. just kidding. Humm...

>> >>

>> >> Some combination of plaintext, secret key and cipher algorithm

>> >> generated it. Probably, the plaintext was hand crafted? ;^)

>> >

>> > As Jacob correctly pointed out, if one knows the message, one can

>> > then 'hand craft' a one-time-pad to generate exactly this output

>> > from that message.

>>

>> Or even the other way around? If one knows the OTP (Bob and/or

>> Alice), they can create a special plaintext that generates this

>> output for fun.

>

> How would you do this?

Message: The

Pad:

T=H

e=r

h=e

Substitute using the pad, get the encrypted message: Her

One can do the same in reverse, if one has an encrypted message, one

can "fashion" a "pad" that will appear to make the message decrypt to

anything you like (so long as "anything" is the same length as the

encrypted message). Note that for the above I picked that pad on

purpose so that "The" would /encrypt/ to "Her".

If one uses XOR to encrypt using their OTP then fashioning a "pad" to

transform X into Y is simply byte wise X (xor) Y. The result is a pad

that will transform X into Y (or Y into X) by XOR.

> I mean the OP IMHO does not show an encrypted string, done with an

> OTP.

know if that is an ecrypted string, decrypted string, or just random

line noise. All possible "decryptions" are possible, and finding the

one 'needle' in the haystack of "not the right pad this time" is

troublesome. Less so in today's world where a computer can "spell

check" the message and dismiss much of the hay in a near instant.

> OTPs nature is that it does not include patterns and is totally

> random.

original string was not from a 'custom crafted OTP'.

> Even if this string is not encrypted and only encoded, how would one

> get such pattern from plain text and convert it back to plain text?

> It had been best if the OP had posted a reference URL ...

trolling.

Feb 15, 2024, 3:20:21 PMFeb 15

to

Rich wrote:

> In sci.crypt Stefan Claas <pol...@tilde.club> wrote:

> > Chris M. Thomasson wrote:

> >> Or even the other way around? If one knows the OTP (Bob and/or

> >> Alice), they can create a special plaintext that generates this

> >> output for fun.

> >

> > How would you do this?

>

> For a traditional, 1940's substution style OTP, it is trivial:

>

> Message: The

>

> Pad:

>

> T=H

> e=r

> h=e

>

> Substitute using the pad, get the encrypted message: Her

Well, one uses a substitution table, trigraph, etc. and then
> In sci.crypt Stefan Claas <pol...@tilde.club> wrote:

> > Chris M. Thomasson wrote:

> >> Or even the other way around? If one knows the OTP (Bob and/or

> >> Alice), they can create a special plaintext that generates this

> >> output for fun.

> >

> > How would you do this?

>

> For a traditional, 1940's substution style OTP, it is trivial:

>

> Message: The

>

> Pad:

>

> T=H

> e=r

> h=e

>

> Substitute using the pad, get the encrypted message: Her

a pad to encrypt the message. Otherwise it would be a plain

text encoded message, right?

> > It had been best if the OP had posted a reference URL ...

>

> I doubt OP found the string at some URL. I suspect the OP was

> trolling.

directly.

Regards

Stefan

--

----Ed25519 Signature----

2cc5ce7d3e5d69a80c0140c8973536ed840a5613f727eb5924612d392b7ea202

Feb 15, 2024, 9:40:00 PMFeb 15

to

On 2/15/2024 12:20 PM, Stefan Claas wrote:

> Rich wrote:

>

>> In sci.crypt Stefan Claas <pol...@tilde.club> wrote:

>>> Chris M. Thomasson wrote:

>

>>>> Or even the other way around? If one knows the OTP (Bob and/or

>>>> Alice), they can create a special plaintext that generates this

>>>> output for fun.

>>>

>>> How would you do this?

>>

>> For a traditional, 1940's substution style OTP, it is trivial:

>>

>> Message: The

>>

>> Pad:

>>

>> T=H

>> e=r

>> h=e

>>

>> Substitute using the pad, get the encrypted message: Her

>

> Well, one uses a substitution table, trigraph, etc. and then

> a pad to encrypt the message. Otherwise it would be a plain

> text encoded message, right?

Give me a OPT 3 bytes long. Creating a plaintext that results in a
> Rich wrote:

>

>> In sci.crypt Stefan Claas <pol...@tilde.club> wrote:

>>> Chris M. Thomasson wrote:

>

>>>> Or even the other way around? If one knows the OTP (Bob and/or

>>>> Alice), they can create a special plaintext that generates this

>>>> output for fun.

>>>

>>> How would you do this?

>>

>> For a traditional, 1940's substution style OTP, it is trivial:

>>

>> Message: The

>>

>> Pad:

>>

>> T=H

>> e=r

>> h=e

>>

>> Substitute using the pad, get the encrypted message: Her

>

> Well, one uses a substitution table, trigraph, etc. and then

> a pad to encrypt the message. Otherwise it would be a plain

> text encoded message, right?

ciphertext of say 123, or ABC is possible...

Feb 16, 2024, 11:57:45 AMFeb 16

to

Chris M. Thomasson wrote:

> On 2/15/2024 12:20 PM, Stefan Claas wrote:

> > Rich wrote:

> >

> >> In sci.crypt Stefan Claas <pol...@tilde.club> wrote:

> >>> Chris M. Thomasson wrote:

> >

> >>>> Or even the other way around? If one knows the OTP (Bob and/or

> >>>> Alice), they can create a special plaintext that generates this

> >>>> output for fun.

> >>>

> >>> How would you do this?

> >>

> >> For a traditional, 1940's substution style OTP, it is trivial:

> >>

> >> Message: The

> >>

> >> Pad:

> >>

> >> T=H

> >> e=r

> >> h=e

> >>

> >> Substitute using the pad, get the encrypted message: Her

> >

> > Well, one uses a substitution table, trigraph, etc. and then

> > a pad to encrypt the message. Otherwise it would be a plain

> > text encoded message, right?

>

> Give me a OPT 3 bytes long. Creating a plaintext that results in a

> ciphertext of say 123, or ABC is possible...

Yes, but then it is not OTP encryption and only plain code, done
> On 2/15/2024 12:20 PM, Stefan Claas wrote:

> > Rich wrote:

> >

> >> In sci.crypt Stefan Claas <pol...@tilde.club> wrote:

> >>> Chris M. Thomasson wrote:

> >

> >>>> Or even the other way around? If one knows the OTP (Bob and/or

> >>>> Alice), they can create a special plaintext that generates this

> >>>> output for fun.

> >>>

> >>> How would you do this?

> >>

> >> For a traditional, 1940's substution style OTP, it is trivial:

> >>

> >> Message: The

> >>

> >> Pad:

> >>

> >> T=H

> >> e=r

> >> h=e

> >>

> >> Substitute using the pad, get the encrypted message: Her

> >

> > Well, one uses a substitution table, trigraph, etc. and then

> > a pad to encrypt the message. Otherwise it would be a plain

> > text encoded message, right?

>

> Give me a OPT 3 bytes long. Creating a plaintext that results in a

> ciphertext of say 123, or ABC is possible...

with substitution, I would say. The OP's Subject: is Patterns.

Regards

Stefan

--

----Ed25519 Signature----

9c4ca60a0298d56bd96340d8a4a1b05bc4c38d6fcf13d8aa2633018b09f0ff0f

Feb 16, 2024, 12:08:03 PMFeb 16

to

Stefan Claas wrote:

> Chris M. Thomasson wrote:

>

> > On 2/15/2024 12:20 PM, Stefan Claas wrote:

> > > Rich wrote:

> > >

> > >> In sci.crypt Stefan Claas <pol...@tilde.club> wrote:

> > >>> Chris M. Thomasson wrote:

> > >

> > >>>> Or even the other way around? If one knows the OTP (Bob and/or

> > >>>> Alice), they can create a special plaintext that generates this

> > >>>> output for fun.

> > >>>

> > >>> How would you do this?

> > >>

> > >> For a traditional, 1940's substution style OTP, it is trivial:

> > >>

> > >> Message: The

> > >>

> > >> Pad:

> > >>

> > >> T=H

> > >> e=r

> > >> h=e

> > >>

> > >> Substitute using the pad, get the encrypted message: Her

> > >

> > > Well, one uses a substitution table, trigraph, etc. and then

> > > a pad to encrypt the message. Otherwise it would be a plain

> > > text encoded message, right?

> >

> > Give me a OPT 3 bytes long. Creating a plaintext that results in a

> > ciphertext of say 123, or ABC is possible...

>

> Yes, but then it is not OTP encryption and only plain code, done

> with substitution, I would say. The OP's Subject: is Patterns.

To be more clear, an OTP encrypted message with digits or letters
> Chris M. Thomasson wrote:

>

> > On 2/15/2024 12:20 PM, Stefan Claas wrote:

> > > Rich wrote:

> > >

> > >> In sci.crypt Stefan Claas <pol...@tilde.club> wrote:

> > >>> Chris M. Thomasson wrote:

> > >

> > >>>> Or even the other way around? If one knows the OTP (Bob and/or

> > >>>> Alice), they can create a special plaintext that generates this

> > >>>> output for fun.

> > >>>

> > >>> How would you do this?

> > >>

> > >> For a traditional, 1940's substution style OTP, it is trivial:

> > >>

> > >> Message: The

> > >>

> > >> Pad:

> > >>

> > >> T=H

> > >> e=r

> > >> h=e

> > >>

> > >> Substitute using the pad, get the encrypted message: Her

> > >

> > > Well, one uses a substitution table, trigraph, etc. and then

> > > a pad to encrypt the message. Otherwise it would be a plain

> > > text encoded message, right?

> >

> > Give me a OPT 3 bytes long. Creating a plaintext that results in a

> > ciphertext of say 123, or ABC is possible...

>

> Yes, but then it is not OTP encryption and only plain code, done

> with substitution, I would say. The OP's Subject: is Patterns.

can of course include 3-5 letter words or a 3-5 digits sequence, but

in case of OTPs this means nothing and I would not call it pattern,

in an encrypted message.

Regards

Stefan

--

----Ed25519 Signature----

361fc85f7b1c3ebd65756278b51194f681428720b3b4360c13b7c3d306fd8d0f

Feb 16, 2024, 3:26:40 PMFeb 16

to

Feb 16, 2024, 7:25:40 PMFeb 16

to

the same size as the message to be encrypted (ie you cannot use pad from

earlier in the message to encode later stuff.) Otherwise it is weak. It

is not a substition cypher (eg your T=H e=r h=e ) to encrypt any other

occrances of T, h or e. That is NOT an OTP. It is a MRP (Many time pad)

which is woefully weak. A OTP is unconditionally secret. It cannot be

broken. An MTP is very weak, or a substitiution cypher is very weak

unless the substition block is really large.

OTPs are not fun. They are boring, because there is no way they can be

broken, unless you capture the key. But of course that is their problem

since you have to get the key to the recipient, without the enemy

capturing the key, and the key is huge, so hard to hide.

Feb 16, 2024, 8:12:20 PMFeb 16

to

prepending plaintext with TRNG data and whacking it with HMAC... ;^)

Feb 17, 2024, 12:39:11 AMFeb 17

to

In sci.crypt William Unruh <un...@invalid.ca> wrote:

> A One Time Pad means what it says. It can only be used once. It must be

> the same size as the message to be encrypted (ie you cannot use pad from

> earlier in the message to encode later stuff.) Otherwise it is weak. It

> is not a substition cypher (eg your T=H e=r h=e ) to encrypt any other

> occrances of T, h or e. That is NOT an OTP. It is a MRP (Many time pad)

> which is woefully weak. A OTP is unconditionally secret. It cannot be

> broken. An MTP is very weak, or a substitiution cypher is very weak

> unless the substition block is really large.

> OTPs are not fun. They are boring, because there is no way they can be

> broken, unless you capture the key. But of course that is their problem

> since you have to get the key to the recipient, without the enemy

> capturing the key, and the key is huge, so hard to hide.

All correct, and also Whoosh!...
> A One Time Pad means what it says. It can only be used once. It must be

> the same size as the message to be encrypted (ie you cannot use pad from

> earlier in the message to encode later stuff.) Otherwise it is weak. It

> is not a substition cypher (eg your T=H e=r h=e ) to encrypt any other

> occrances of T, h or e. That is NOT an OTP. It is a MRP (Many time pad)

> which is woefully weak. A OTP is unconditionally secret. It cannot be

> broken. An MTP is very weak, or a substitiution cypher is very weak

> unless the substition block is really large.

> OTPs are not fun. They are boring, because there is no way they can be

> broken, unless you capture the key. But of course that is their problem

> since you have to get the key to the recipient, without the enemy

> capturing the key, and the key is huge, so hard to hide.

The OP (the Doctor, likely trolling as he has not again been seen in

this thread) posted a string of sequential letters and numbers and

asked what "encryption" was used.

Jacob, in message <uqg2om$252r4$1...@dont-email.me> correctly pointed out

that /assuming/ it even was an "encrypted" output, that one way to have

created the sequential string as the "cipher text" was to specially

craft an OTP "pad" for a known message to result in the given output.

Stefan, in message <uqln3h$2pbms$1...@i2pn2.org> asked how this could be

done. My reply with the T=H substitution was an extremely simplified

explanation of how one could craft a pad to cause a given output to

appear.

Feb 18, 2024, 4:04:44 PMFeb 18

to

as the encrypted text. Now take the bitwise xor of the original with

your test. The result will be a one time pad which could have been used

to encrypt your madeup text. Ie, you have found a one time pad which

would decrypt the original encrypted text to your Any text.

Of course the probability that your ANY text was what was originally

encrypted is vanishingly small. (1/2^N) where N is the number of bits

in the encrypted text. )f course if it were known to be english text

that was encrypted, the probability is higher (about 1/2^(N/5) I think,

but that still produces a very very small number, and is probably far

worse than if you just dream the text that was encrypted)

Feb 20, 2024, 4:10:07 PMFeb 20

to

On 2/15/2024 11:02 AM, Stefan Claas wrote:

> Chris M. Thomasson wrote:

>

>> On 2/13/2024 8:45 PM, Rich wrote:

>>> In sci.crypt Chris M. Thomasson <chris.m.t...@gmail.com>

>>> wrote:

>>>> On 2/12/2024 5:30 PM, The Doctor wrote:

>>>>> Deos anyone how what encryption is being used here?

>>>>>

>>>>> *1234567890ABCDEF01234567890ABCDEF0123456

>>>>

>>>> None? lol. just kidding. Humm...

>>>>

>>>> Some combination of plaintext, secret key and cipher algorithm

>>>> generated it. Probably, the plaintext was hand crafted? ;^)

>>>

>>> As Jacob correctly pointed out, if one knows the message, one can

>>> then 'hand craft' a one-time-pad to generate exactly this output

>>> from that message.

>>

>> Or even the other way around? If one knows the OTP (Bob and/or

>> Alice), they can create a special plaintext that generates this

>> output for fun.

>

> How would you do this? I mean the OP IMHO does not show an encrypted

> string, done with an OTP. OTPs nature is that it does not include

> patterns and is totally random.

If Bob and Alice have access to the same OPT, one of them can create a
> Chris M. Thomasson wrote:

>

>> On 2/13/2024 8:45 PM, Rich wrote:

>>> In sci.crypt Chris M. Thomasson <chris.m.t...@gmail.com>

>>> wrote:

>>>> On 2/12/2024 5:30 PM, The Doctor wrote:

>>>>> Deos anyone how what encryption is being used here?

>>>>>

>>>>> *1234567890ABCDEF01234567890ABCDEF0123456

>>>>

>>>> None? lol. just kidding. Humm...

>>>>

>>>> Some combination of plaintext, secret key and cipher algorithm

>>>> generated it. Probably, the plaintext was hand crafted? ;^)

>>>

>>> As Jacob correctly pointed out, if one knows the message, one can

>>> then 'hand craft' a one-time-pad to generate exactly this output

>>> from that message.

>>

>> Or even the other way around? If one knows the OTP (Bob and/or

>> Alice), they can create a special plaintext that generates this

>> output for fun.

>

> How would you do this? I mean the OP IMHO does not show an encrypted

> string, done with an OTP. OTPs nature is that it does not include

> patterns and is totally random.

special plaintext that can give the message in the ciphertext, or

whatever... Think about it... ;^)

Feb 20, 2024, 4:55:38 PMFeb 20

to

On 20/02/2024 21:09, Chris M. Thomasson wrote:

> On 2/15/2024 11:02 AM, Stefan Claas wrote:

>> Chris M. Thomasson wrote:

>>

>>> On 2/13/2024 8:45 PM, Rich wrote:

>>>> In sci.crypt Chris M. Thomasson <chris.m.t...@gmail.com>

>>>> wrote:

>>>>> On 2/12/2024 5:30 PM, The Doctor wrote:

>>>>>> Deos anyone how what encryption is being used here?

>>>>>>

>>>>>> *1234567890ABCDEF01234567890ABCDEF0123456

>>>>>

>>>>> None? lol. just kidding. Humm...

>>>>>

>>>>> Some combination of plaintext, secret key and cipher algorithm

>>>>> generated it. Probably, the plaintext was hand crafted? ;^)

>>>>

>>>> As Jacob correctly pointed out, if one knows the message, one can

>>>> then 'hand craft' a one-time-pad to generate exactly this output

>>>> from that message.

>>>

>>> Or even the other way around? If one knows the OTP (Bob and/or

>>> Alice), they can create a special plaintext that generates this

>>> output for fun.

>>

>> How would you do this? I mean the OP IMHO does not show an encrypted

>> string, done with an OTP. OTPs nature is that it does not include

>> patterns and is totally random.

>

> If Bob and Alice have access to the same OPT, one of them can create a

> special plaintext that can give the message in the ciphertext, or

> whatever... Think about it... ;^)

>

If the ciphertext is just going to be 123...abc..., then there is no
> On 2/15/2024 11:02 AM, Stefan Claas wrote:

>> Chris M. Thomasson wrote:

>>

>>> On 2/13/2024 8:45 PM, Rich wrote:

>>>> In sci.crypt Chris M. Thomasson <chris.m.t...@gmail.com>

>>>> wrote:

>>>>> On 2/12/2024 5:30 PM, The Doctor wrote:

>>>>>> Deos anyone how what encryption is being used here?

>>>>>>

>>>>>> *1234567890ABCDEF01234567890ABCDEF0123456

>>>>>

>>>>> None? lol. just kidding. Humm...

>>>>>

>>>>> Some combination of plaintext, secret key and cipher algorithm

>>>>> generated it. Probably, the plaintext was hand crafted? ;^)

>>>>

>>>> As Jacob correctly pointed out, if one knows the message, one can

>>>> then 'hand craft' a one-time-pad to generate exactly this output

>>>> from that message.

>>>

>>> Or even the other way around? If one knows the OTP (Bob and/or

>>> Alice), they can create a special plaintext that generates this

>>> output for fun.

>>

>> How would you do this? I mean the OP IMHO does not show an encrypted

>> string, done with an OTP. OTPs nature is that it does not include

>> patterns and is totally random.

>

> If Bob and Alice have access to the same OPT, one of them can create a

> special plaintext that can give the message in the ciphertext, or

> whatever... Think about it... ;^)

>

point in transmitting it.

Feb 20, 2024, 5:15:17 PMFeb 20

to

ciphertext: 123456789

plaintext: thefoxrun

Of source, alice is in on the fun. She says 123456789, lol...

Just for different ways of thinking how to use things.

Feb 20, 2024, 5:17:55 PMFeb 20

to

In article <ur374g$2n32c$1...@dont-email.me>,

Basically a generic code!

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What worth the power of law that won't stop lawlessness? -unknown
Member - Liberal International This is doc...@nk.ca Ici doc...@nk.ca

Yahweh, King & country!Never Satan President Republic!Beware AntiChrist rising!

Look at Psalms 14 and 53 on Atheism ; unsubscribe from Google Groups to be seen

Feb 20, 2024, 5:18:05 PMFeb 20

to

the number of times it uses the spoon can encrypt. ;^)

Feb 20, 2024, 6:47:11 PMFeb 20

to

On 2024-02-20, Chris M. Thomasson <chris.m.t...@gmail.com> wrote:

> On 2/15/2024 11:02 AM, Stefan Claas wrote:

>> Chris M. Thomasson wrote:

>>

>>> On 2/13/2024 8:45 PM, Rich wrote:

>>>> In sci.crypt Chris M. Thomasson <chris.m.t...@gmail.com>

>>>> wrote:

>>>>> On 2/12/2024 5:30 PM, The Doctor wrote:

>>>>>> Deos anyone how what encryption is being used here?

>>>>>>

>>>>>> *1234567890ABCDEF01234567890ABCDEF0123456

>>>>>

>>>>> None? lol. just kidding. Humm...

>>>>>

>>>>> Some combination of plaintext, secret key and cipher algorithm

>>>>> generated it. Probably, the plaintext was hand crafted? ;^)

>>>>

>>>> As Jacob correctly pointed out, if one knows the message, one can

>>>> then 'hand craft' a one-time-pad to generate exactly this output

>>>> from that message.

>>>

>>> Or even the other way around? If one knows the OTP (Bob and/or

>>> Alice), they can create a special plaintext that generates this

>>> output for fun.

>>

>> How would you do this? I mean the OP IMHO does not show an encrypted

>> string, done with an OTP. OTPs nature is that it does not include

>> patterns and is totally random.

>

> If Bob and Alice have access to the same OPT, one of them can create a

> special plaintext that can give the message in the ciphertext, or

> whatever... Think about it... ;^)

Yes, Just do the inverse of the OTP (if it is just xor then xor is also
> On 2/15/2024 11:02 AM, Stefan Claas wrote:

>> Chris M. Thomasson wrote:

>>

>>> On 2/13/2024 8:45 PM, Rich wrote:

>>>> In sci.crypt Chris M. Thomasson <chris.m.t...@gmail.com>

>>>> wrote:

>>>>> On 2/12/2024 5:30 PM, The Doctor wrote:

>>>>>> Deos anyone how what encryption is being used here?

>>>>>>

>>>>>> *1234567890ABCDEF01234567890ABCDEF0123456

>>>>>

>>>>> None? lol. just kidding. Humm...

>>>>>

>>>>> Some combination of plaintext, secret key and cipher algorithm

>>>>> generated it. Probably, the plaintext was hand crafted? ;^)

>>>>

>>>> As Jacob correctly pointed out, if one knows the message, one can

>>>> then 'hand craft' a one-time-pad to generate exactly this output

>>>> from that message.

>>>

>>> Or even the other way around? If one knows the OTP (Bob and/or

>>> Alice), they can create a special plaintext that generates this

>>> output for fun.

>>

>> How would you do this? I mean the OP IMHO does not show an encrypted

>> string, done with an OTP. OTPs nature is that it does not include

>> patterns and is totally random.

>

> If Bob and Alice have access to the same OPT, one of them can create a

> special plaintext that can give the message in the ciphertext, or

> whatever... Think about it... ;^)

the inverst) and run it over the encrypted text and get what would have

to have beenused to generate that encrypted text. But one of the

absolutely critical things about OTPs is that it should be irremediably

destroyed after it is used to encrypt the message. So only the person

who ha not already used the OTP should have the OTP.

>

>

>>

>> Even if this string is not encrypted and only encoded, how would one

>> get such pattern from plain text and convert it back to plain text?

OTP xor EncryptedText=PlainText.

Feb 21, 2024, 1:24:26 PMFeb 21

to

Chris M. Thomasson wrote:

> If Bob and Alice have access to the same OPT, one of them can create

> a special plaintext that can give the message in the ciphertext, or

> whatever... Think about it... ;^)

Can you craft an example, maybe with code (that compiles ...)?
> If Bob and Alice have access to the same OPT, one of them can create

> a special plaintext that can give the message in the ciphertext, or

> whatever... Think about it... ;^)

BTW. I would appreciate if you and other sci.crypt regulars

can sign my guestbook, on my Gemini-Capsule.

gemini://tilde.club/~pollux/

The guestbook is under Gästebuch.

I am thinking about to set-up a cryptobook for us in Geminispace,

so that small encrypted messages can be left there ... ;-)

Regards

Stefan

--

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