I used a torrent to obtain a few hundred books on religion.
I used calibre to convert all those books to PDFs and M$ Word.
But I also have them converted to a host of other ebook formats.

The files are big.
None are smaller than 1MB and many are in the 3MB, 4MB & 5MB size.

Now how can I send them to my friends who want to discuss them?
One of my friends suggested the WeTransfer free file transfer service.

This says the only thing it needs is the two people's email addresses.
https://www.cloudwards.net/how-to-use-wetransfer/

That looks good as the only limitation is the 2MB file size limit.
And it doesn't need any registration to transfer the large files.

But is there something better out there that competes with WeTransfer?

On 7/4/2023 4:56 PM, Lord Vader wrote:
> I used a torrent to obtain a few hundred books on religion.
> I used calibre to convert all those books to PDFs and M$ Word.
> But I also have them converted to a host of other ebook formats.
>
> The files are big.
> None are smaller than 1MB and many are in the 3MB, 4MB & 5MB size.
>
> Now how can I send them to my friends who want to discuss them?
> One of my friends suggested the WeTransfer free file transfer service.
>
> This says the only thing it needs is the two people's email addresses.
> https://www.cloudwards.net/how-to-use-wetransfer/
>
> That looks good as the only limitation is the 2MB file size limit.
> And it doesn't need any registration to transfer the large files.
>
> But is there something better out there that competes with WeTransfer?
>

With your favorite ZIP program, you can create an output from the
ZIP program, of limited size.

You could take a 10MB file, and make five 2MB ZIP files. When
the five files are presented to the unZIP program, they can convert
the five files, back to one file again.

[Picture]

https://i.postimg.cc/G9wMh8mL/segmented-zip.gif

Paul

On 7/4/23 5:15 PM, Paul wrote:
> On 7/4/2023 4:56 PM, Lord Vader wrote:
>> I used a torrent to obtain a few hundred books on religion.
>> I used calibre to convert all those books to PDFs and M$ Word.
>> But I also have them converted to a host of other ebook formats.
>>
>> The files are big.
>> None are smaller than 1MB and many are in the 3MB, 4MB & 5MB size.
>>
>> Now how can I send them to my friends who want to discuss them?
>> One of my friends suggested the WeTransfer free file transfer service.
>>
>> This says the only thing it needs is the two people's email addresses.
>> https://www.cloudwards.net/how-to-use-wetransfer/
>>
>> That looks good as the only limitation is the 2MB file size limit.
>> And it doesn't need any registration to transfer the large files.
>>
>> But is there something better out there that competes with WeTransfer?
>>
>
> With your favorite ZIP program, you can create an output from the
> ZIP program, of limited size.
>
> You could take a 10MB file, and make five 2MB ZIP files. When
> the five files are presented to the unZIP program, they can convert
> the five files, back to one file again.
>
>    [Picture]
>
>     https://i.postimg.cc/G9wMh8mL/segmented-zip.gif
>
>   Paul
Best secure method out there.

On 7/4/23 17:47, this is what Nic wrote:
> On 7/4/23 5:15 PM, Paul wrote:
>> On 7/4/2023 4:56 PM, Lord Vader wrote:
>>> I used a torrent to obtain a few hundred books on religion.
>>> I used calibre to convert all those books to PDFs and M$ Word.
>>> But I also have them converted to a host of other ebook formats.
>>>
>>> The files are big.
>>> None are smaller than 1MB and many are in the 3MB, 4MB & 5MB size.
>>>
>>> Now how can I send them to my friends who want to discuss them?
>>> One of my friends suggested the WeTransfer free file transfer service.
>>>
>>> This says the only thing it needs is the two people's email addresses.
>>> https://www.cloudwards.net/how-to-use-wetransfer/
>>>
>>> That looks good as the only limitation is the 2MB file size limit.
>>> And it doesn't need any registration to transfer the large files.
>>>
>>> But is there something better out there that competes with WeTransfer?
>>>
>>
>> With your favorite ZIP program, you can create an output from the
>> ZIP program, of limited size.
>>
>> You could take a 10MB file, and make five 2MB ZIP files. When
>> the five files are presented to the unZIP program, they can convert
>> the five files, back to one file again.
>>
>>    [Picture]
>>
>>     https://i.postimg.cc/G9wMh8mL/segmented-zip.gif
>>
>>   Paul
> Best secure method out there.
Other than giving away 2 email addresses.
--
Linux Mint 21.1 Cinnamon 5.6.8
Al

On 7/4/23 16:56, this is what Lord Vader wrote:
> I used a torrent to obtain a few hundred books on religion.
> I used calibre to convert all those books to PDFs and M$ Word.
> But I also have them converted to a host of other ebook formats.
>
> The files are big.
> None are smaller than 1MB and many are in the 3MB, 4MB & 5MB size.
>
> Now how can I send them to my friends who want to discuss them?
> One of my friends suggested the WeTransfer free file transfer service.
>
> This says the only thing it needs is the two people's email addresses.
> https://www.cloudwards.net/how-to-use-wetransfer/
>
> That looks good as the only limitation is the 2MB file size limit.
> And it doesn't need any registration to transfer the large files.
>
> But is there something better out there that competes with WeTransfer?
Do you have one drive? or Google Drive? They both allow gigs of space.
You can share the files once you upload them.

I haven't use it in a long while but when sharing, you give the email address and it sends an email to them with a link
for them to download the files. IIRC.
--
Linux Mint 21.1 Cinnamon 5.6.8
Al

On 7/4/23 6:08 PM, Big Al wrote:
> On 7/4/23 17:47, this is what Nic wrote:
>> On 7/4/23 5:15 PM, Paul wrote:
>>> On 7/4/2023 4:56 PM, Lord Vader wrote:
>>>> I used a torrent to obtain a few hundred books on religion.
>>>> I used calibre to convert all those books to PDFs and M$ Word.
>>>> But I also have them converted to a host of other ebook formats.
>>>>
>>>> The files are big.
>>>> None are smaller than 1MB and many are in the 3MB, 4MB & 5MB size.
>>>>
>>>> Now how can I send them to my friends who want to discuss them?
>>>> One of my friends suggested the WeTransfer free file transfer service.
>>>>
>>>> This says the only thing it needs is the two people's email addresses.
>>>> https://www.cloudwards.net/how-to-use-wetransfer/
>>>>
>>>> That looks good as the only limitation is the 2MB file size limit.
>>>> And it doesn't need any registration to transfer the large files.
>>>>
>>>> But is there something better out there that competes with WeTransfer?
>>>>
>>>
>>> With your favorite ZIP program, you can create an output from the
>>> ZIP program, of limited size.
>>>
>>> You could take a 10MB file, and make five 2MB ZIP files. When
>>> the five files are presented to the unZIP program, they can convert
>>> the five files, back to one file again.
>>>
>>>    [Picture]
>>>
>>>     https://i.postimg.cc/G9wMh8mL/segmented-zip.gif
>>>
>>>   Paul
>> Best secure method out there.
> Other than giving away 2 email addresses.
Would you trust the cure for cancer to your method?

On 7/4/2023 5:47 PM, Nic wrote:
> On 7/4/23 5:15 PM, Paul wrote:
>> On 7/4/2023 4:56 PM, Lord Vader wrote:
>>> I used a torrent to obtain a few hundred books on religion.
>>> I used calibre to convert all those books to PDFs and M$ Word.
>>> But I also have them converted to a host of other ebook formats.
>>>
>>> The files are big.
>>> None are smaller than 1MB and many are in the 3MB, 4MB & 5MB size.
>>>
>>> Now how can I send them to my friends who want to discuss them?
>>> One of my friends suggested the WeTransfer free file transfer service.
>>>
>>> This says the only thing it needs is the two people's email addresses.
>>> https://www.cloudwards.net/how-to-use-wetransfer/
>>>
>>> That looks good as the only limitation is the 2MB file size limit.
>>> And it doesn't need any registration to transfer the large files.
>>>
>>> But is there something better out there that competes with WeTransfer?
>>>
>>
>> With your favorite ZIP program, you can create an output from the
>> ZIP program, of limited size.
>>
>> You could take a 10MB file, and make five 2MB ZIP files. When
>> the five files are presented to the unZIP program, they can convert
>> the five files, back to one file again.
>>
>>    [Picture]
>>
>>     https://i.postimg.cc/G9wMh8mL/segmented-zip.gif
>>
>>   Paul
> Best secure method out there.

These transfer schemes can't last too long.

Mozilla had one, related to Firefox, and they had to
shut that down.

They're just too hard to police, and keep the authorities happy.

Paul

On Wed, 5 Jul 2023 05:56:36 +0900, Lord Vader wrote:

> That looks good as the only limitation is the 2MB file size limit.
> And it doesn't need any registration to transfer the large files.
>
> But is there something better out there that competes with WeTransfer?

If you have the recipients' email addresses protonmail allows up to 100
attachments in a single email with a file size limit of 25MB per email.

If you don't have the other person's email, then you can try UFile which
has a maximum of 5GB per file and a maximum of 10 files per URL.
https://ufile.io/ (URLs to your unregistered guest uploads last 30 days)

If you don't mind sharing emails for both parties, WeTransfer is 2GB max.
https://wetransfer.com/ (the mail transfer file only lasts 7 days)

There are probably much better alternatives that others know more about,
where I would hope others know of a way to transfer epub style large files
WITHOUT needing to know the other person's email address (or even yours).

On 7/4/23 6:18 PM, Paul wrote:
> On 7/4/2023 5:47 PM, Nic wrote:
>> On 7/4/23 5:15 PM, Paul wrote:
>>> On 7/4/2023 4:56 PM, Lord Vader wrote:
>>>> I used a torrent to obtain a few hundred books on religion.
>>>> I used calibre to convert all those books to PDFs and M$ Word.
>>>> But I also have them converted to a host of other ebook formats.
>>>>
>>>> The files are big.
>>>> None are smaller than 1MB and many are in the 3MB, 4MB & 5MB size.
>>>>
>>>> Now how can I send them to my friends who want to discuss them?
>>>> One of my friends suggested the WeTransfer free file transfer service.
>>>>
>>>> This says the only thing it needs is the two people's email addresses.
>>>> https://www.cloudwards.net/how-to-use-wetransfer/
>>>>
>>>> That looks good as the only limitation is the 2MB file size limit.
>>>> And it doesn't need any registration to transfer the large files.
>>>>
>>>> But is there something better out there that competes with WeTransfer?
>>>>
>>>
>>> With your favorite ZIP program, you can create an output from the
>>> ZIP program, of limited size.
>>>
>>> You could take a 10MB file, and make five 2MB ZIP files. When
>>> the five files are presented to the unZIP program, they can convert
>>> the five files, back to one file again.
>>>
>>>    [Picture]
>>>
>>>     https://i.postimg.cc/G9wMh8mL/segmented-zip.gif
>>>
>>>   Paul
>> Best secure method out there.
>
> These transfer schemes can't last too long.
>
> Mozilla had one, related to Firefox, and they had to
> shut that down.
>
> They're just too hard to police, and keep the authorities happy.
>
>    Paul
The American Indians could put their ear to the rail and tell you when
the train would pass by this place.  It is who employs the authorities
that are uncomfortable, not knowing everything that could upset their
world view of the power structure.

On 7/4/23 6:19 PM, Oscar Mayer wrote:
> On Wed, 5 Jul 2023 05:56:36 +0900, Lord Vader wrote:
>
>> That looks good as the only limitation is the 2MB file size limit.
>> And it doesn't need any registration to transfer the large files.
>>
>> But is there something better out there that competes with WeTransfer?
>
> If you have the recipients' email addresses protonmail allows up to 100
> attachments in a single email with a file size limit of 25MB per email.
>
> If you don't have the other person's email, then you can try UFile which
> has a maximum of 5GB per file and a maximum of 10 files per URL.
> https://ufile.io/  (URLs to your unregistered guest uploads last 30 days)
>
> If you don't mind sharing emails for both parties, WeTransfer is 2GB max.
> https://wetransfer.com/ (the mail transfer file only lasts 7 days)
>
> There are probably much better alternatives that others know more
> about, where I would hope others know of a way to transfer epub style
> large files
> WITHOUT needing to know the other person's email address (or even yours).
re:the mail transfer file only lasts 7 days, that is so naive, given the
digital rate of copy/paste, your secret would no longer be a secret
except to dumbbells like you.

> One of my friends suggested the WeTransfer free file transfer service.
>
> That looks good as the only limitation is the 2MB file size limit.

Incorrect. The file size limit is 2GB (gigabytes) for free
non-registered use.

> And it doesn't need any registration to transfer the large files.

On 04-Jul-23 4:56 PM, Lord Vader wrote:
> I used a torrent to obtain a few hundred books on religion.
> I used calibre to convert all those books to PDFs and M$ Word.
> But I also have them converted to a host of other ebook formats.
>
> The files are big.
> None are smaller than 1MB and many are in the 3MB, 4MB & 5MB size.
>
> Now how can I send them to my friends who want to discuss them?
> One of my friends suggested the WeTransfer free file transfer service.
>
> This says the only thing it needs is the two people's email addresses.
> https://www.cloudwards.net/how-to-use-wetransfer/
>
> That looks good as the only limitation is the 2MB file size limit.
> And it doesn't need any registration to transfer the large files.
>
> But is there something better out there that competes with WeTransfer?

Just off the top of my head, but these are file sharing sites which do
not require registration. Some of them delete the files after a few days
without it being downloaded unless you register or pay;

mediafire, gofile, bunkrr, pixeldrain, 1fichier, cyberfile, anonfiles

Though you could also use google drive, which is 5gb free. Onedrive
likely does something similar too for free version.

And as an aside, a 5MB file isn't really 'large'.. Photos you can take
on a modern smartphone are often 10Mb in size. Using any of those above,
or ideally just sharing them on google drive would be the best bet imo

On 7/4/23 6:56 PM, justaW wrote:
> On 04-Jul-23 4:56 PM, Lord Vader wrote:
>> I used a torrent to obtain a few hundred books on religion.
>> I used calibre to convert all those books to PDFs and M$ Word.
>> But I also have them converted to a host of other ebook formats.
>>
>> The files are big.
>> None are smaller than 1MB and many are in the 3MB, 4MB & 5MB size.
>>
>> Now how can I send them to my friends who want to discuss them?
>> One of my friends suggested the WeTransfer free file transfer service.
>>
>> This says the only thing it needs is the two people's email addresses.
>> https://www.cloudwards.net/how-to-use-wetransfer/
>>
>> That looks good as the only limitation is the 2MB file size limit.
>> And it doesn't need any registration to transfer the large files.
>>
>> But is there something better out there that competes with WeTransfer?
>
> Just off the top of my head, but these are file sharing sites which do
> not require registration. Some of them delete the files after a few
> days without it being downloaded unless you register or pay;
>
> mediafire, gofile, bunkrr, pixeldrain, 1fichier, cyberfile, anonfiles
>
> Though you could also use google drive, which is 5gb free. Onedrive
> likely does something similar too for free version.
>
> And as an aside, a 5MB file isn't really 'large'.. Photos you can take
> on a modern smartphone are often 10Mb in size. Using any of those
> above, or ideally just sharing them on google drive would be the best
> bet imo
Amazing, another knuckle head falls out of the trees.

On 7/4/2023 6:10 PM, Big Al wrote:
> On 7/4/23 16:56, this is what Lord Vader wrote:
>> I used a torrent to obtain a few hundred books on religion.
>> I used calibre to convert all those books to PDFs and M$ Word.
>> But I also have them converted to a host of other ebook formats.
>>
>> The files are big.
>> None are smaller than 1MB and many are in the 3MB, 4MB & 5MB size.
>>
>> Now how can I send them to my friends who want to discuss them?
>> One of my friends suggested the WeTransfer free file transfer service.
>>
>> This says the only thing it needs is the two people's email addresses.
>> https://www.cloudwards.net/how-to-use-wetransfer/
>>
>> That looks good as the only limitation is the 2MB file size limit.
>> And it doesn't need any registration to transfer the large files.
>>
>> But is there something better out there that competes with WeTransfer?
> Do you have one drive?  or Google Drive?  They both allow gigs of space.
> You can share the files once you upload them.
>
> I haven't use it in a long while but when sharing, you give the email
> address and it sends an email to them with a link for them to download
> the files.  IIRC.

I use Google Drive. Every Google Drive account can have 15 GB of free
cloud storage. You can open multiple Google Drive accounts by using
different email accounts, i.e. if you open 10 Google Drive accounts, you
will have a total of 150 GB of free cloud storage. That is 10 x 15 GB,
not a single contiguous 150 GB.

Google Drive will create a virtual drive with a drive letter for each
Google Drive account in "My Computer". Google Drive will put a startup
file so that every time you start your computer, you will see the Google
Drive virtue drive letter(s). I have a habit disabling the Google Drive
startup executable file, and only manually start the Google Drive
executable file when I need to access Google Drive.

I have tried some other free cloud storage services. They tend to have a
habit of nagging me to subscribe to their paid service. Google Drive
does not nag me for money.

After I have put something in Google Drive in the cloud, I can get a
link of the file for my friend to download. It can be "anybody" who
receives the link, or I can specify who can actually download the file
with that link.

If you are afraid Google is spying on the content of your files in the
cloud, you can make .7z or .rar files with your own password. Actually,
it is better to use .7z or .rar rather than .zip format, because Windows
"Defender" will inspect the content of .zip file when you are download
or uploading the .zip file, which will inevitably slow down the download
and upload.

>>> But is there something better out there that competes with WeTransfer?

>> WITHOUT needing to know the other person's email address (or even yours).

gofile.io - no emails needed, no registration required, no limit on file
size or #uploads, multifile uploads

file.io - no emails needed, no registration required, 2 GB upload limit,
can set expiration time

On Tue, 4 Jul 2023 18:18:49 -0500, kelown wrote:

>>>> But is there something better out there that competes with WeTransfer?
>
>>> WITHOUT needing to know the other person's email address (or even yours).
>
> gofile.io - no emails needed, no registration required, no limit on file
> size or #uploads, multifile uploads
>
> file.io - no emails needed, no registration required, 2 GB upload limit,
> can set expiration time

Nice. Both are nice. Very nice.

Minor detail. The GoFile FAQ says the expiry is 10 days after the data
becomes inactive but that's long enough for an individual file transfer.
https://gofile.io/faq

For how long are my files available on gofile?

As long as your files are regularly downloaded by different users on a
weekly basis, they will not be deleted. If a file is no longer downloaded,
it becomes inactive and is subject to deletion after 10 days. If you wish
to store your files permanently, you may upgrade your account from your
profile page.

On 7/4/2023 6:18 PM, Paul wrote:
> These transfer schemes can't last too long.
>
> Mozilla had one, related to Firefox, and they had to
> shut that down.
>
> They're just too hard to police, and keep the authorities happy.

I suspect all the transfer sites have a policy of no copyrighted material.
Don't know if they enforce that, but an ebook would have a copyright page.

I guess the guy could use encryption to obfuscate the file contents.
Would 7zip encryption be the suggested method for the guy to use?
--
best regards,

Neil

On Tue, 4 Jul 2023 19:00:27 -0400, a wise man wrote:

> If you are afraid Google is spying on the content of your files in the
> cloud, you can make .7z or .rar files with your own password. Actually,
> it is better to use .7z or .rar rather than .zip format, because Windows
> "Defender" will inspect the content of .zip file when you are download
> or uploading the .zip file, which will inevitably slow down the download
> and upload.

Assuming the uploader is proficient and assuming the downloader is a noob,
which is the best format for noobs on an iPhone, Android, Windows or Mac?

Is there a free easily used 7z or rar extractor for all the platforms?

On 5/7/2023, Nic wrote:

>> Though you could also use google drive, which is 5gb free. Onedrive
>> likely does something similar too for free version.

> Amazing, another knuckle head falls out of the trees.

Doubt google drive or one drive are viable given the question & ngs.
Also probably safe to assume files need to be protected with a password.

Which is perhaps why the op omitted google anything and which means the OP
will likely be posting the uri's to a suitable forum in some anonymous way.

Given basic normal privacy/anonymity assumptions, encryption will be needed
for the file where the decryption by unknown users is the problem to solve.

Android, being linux, has many tools that will open all protected formats.
https://play.google.com/store/apps/details?id=com.rarlab.rar
https://play.google.com/store/apps/details?id=com.sociosoft.unzip
https://play.google.com/store/apps/details?id=ru.zdevs.zarchive

For ios the files tool will open zip files but it won't open rar files.
But the documents tool many ios users already have does open rar files.
https://apps.apple.com/app/documents-file-manager-app/id364901807

For the iphone, other good third-party tools might be zip or izip.
https://apps.apple.com/us/app/zip-rar-file-extractor/id769409043
https://apps.apple.com/us/app/izip-zip-unzip-unrar/id413971331

Overall probably the best single free tool on all the platforms is winzip.
https://www.winzip.com/en/all-products/

On 7/4/2023 11:12 PM, Neil wrote:
> On 7/4/2023 6:18 PM, Paul wrote:
>> These transfer schemes can't last too long.
>>
>> Mozilla had one, related to Firefox, and they had to
>> shut that down.
>>
>> They're just too hard to police, and keep the authorities happy.
>
> I suspect all the transfer sites have a policy of no copyrighted material.
> Don't know if they enforce that, but an ebook would have a copyright page.
>
> I guess the guy could use encryption to obfuscate the file contents.
> Would 7zip encryption be the suggested method for the guy to use?

The mechanical aspect, the SHA256, is strong enough.

There might have been a couple issues with key preparation.

If there are release notes for 7-ZIP, you might be able
to trace the history on that part. I've seen articles
on tech sites about 7ZIP crypto.

The problem with crypto, is there just aren't enough experts
when you need them. Igor is a whiz at compression and streaming,
but I don't think he really signed on for the crypto. And that's
where the community can help. Even some of the standards bodies
have made crypto mistakes, and if they'd presented their work
to the public, there are people out there who can quickly
pick apart the mistakes.

Generally a sign you've fucked up, is if you find someone
"selling software to crack 7ZIP crypto" :-) That's the easiest
way to know you've made a mistake.

Is it better than the trivially crackable 40 bit WinZIP stuff ? YES :-)
It's at least that good, maybe even better. Only the latest WinZIP method,
has a notion of security to it. Adobe Acrobat is in a similar mess, many
bits not so strong, maybe only the last one needs to be brute forced
with a GPU. Brute forcing the 7Z method won't help you, however, if
you have a way of guessing the password or using a dictionary attack,
it might fall faster.

At least, don't use 12345678 for the password, OK ?

Another option, is to do the crypto separately.

Paul

On 7/4/2023 11:18 PM, Mickey D wrote:
> On Tue, 4 Jul 2023 19:00:27 -0400, a wise man wrote:
>
>> If you are afraid Google is spying on the content of your files in the
>> cloud, you can make .7z or .rar files with your own password. Actually,
>> it is better to use .7z or .rar rather than .zip format, because Windows
>> "Defender" will inspect the content of .zip file when you are download
>> or uploading the .zip file, which will inevitably slow down the download
>> and upload.
>
> Assuming the uploader is proficient and assuming the downloader is a noob,
> which is the best format for noobs on an iPhone, Android, Windows or Mac?
>
> Is there a free easily used 7z or rar extractor for all the platforms?
>

Isn't there an SDK for 7Z ?

Depending on what platforms that supports, that
would be one way to allow others to write converters.
If the SDK is only for two platforms, at a guess
you'll only get tools for two platforms.

I don't think anyone wants to drop to command line for this stuff...
Now, what is the GUI equivalent of this ? Dunno. It might be 7Z Ultra,
but I can't be sure. Maybe it's 7Z Fast ? There's no crypto in that one.
The crypto step (the grinding), comes after the compression step.
Once it's encrypted, you cannot compress it further.

"7z.exe" a -t7z -m0=LZMA2:d64k:fb32 -ms=8m -mmt=30 -mx=1 -- "F:\BACKUP" "D:\Source"

Paul

On 2023-07-05, Paul <nospam@needed.invalid> wrote:
> Is it better than the trivially crackable 40 bit WinZIP stuff ? YES :-)
> At least, don't use 12345678 for the password, OK ?
> Another option, is to do the crypto separately.

I think the encryption just needs to be 'good enough' to get past the
copyright censors for the few days that the file will be on the server.

The only other issue is you don't know what software the recipient uses.
So whatever encryption is used, it has to work on all 5 systems out there.

Paul <nospam@needed.invalid> wrote:
> On 7/4/2023 4:56 PM, Lord Vader wrote:
>> I used a torrent to obtain a few hundred books on religion.
>> I used calibre to convert all those books to PDFs and M$ Word.
>> But I also have them converted to a host of other ebook formats.
>>
>> The files are big.
>> None are smaller than 1MB and many are in the 3MB, 4MB & 5MB size.
>>
>> Now how can I send them to my friends who want to discuss them?
>> One of my friends suggested the WeTransfer free file transfer service.
>>
>> This says the only thing it needs is the two people's email addresses.
>> https://www.cloudwards.net/how-to-use-wetransfer/
>>
>> That looks good as the only limitation is the 2MB file size limit.
>> And it doesn't need any registration to transfer the large files.
>>
>> But is there something better out there that competes with WeTransfer?
>>
>
> With your favorite ZIP program, you can create an output from the
> ZIP program, of limited size.
>
> You could take a 10MB file, and make five 2MB ZIP files. When
> the five files are presented to the unZIP program, they can convert
> the five files, back to one file again.
>
> [Picture]
>
> https://i.postimg.cc/G9wMh8mL/segmented-zip.gif
>
> Paul
>

If you use DropBox access to file can be granted to email addresses.

--
Zaidy036

Paul wrote:

> Isn't there an SDK for 7Z ?

There was (presume still is) a command line tool as an add-on for IZarc,
not sure if there's a callable API though?

On 7/5/2023 3:24 AM, Incubus wrote:
> On 2023-07-05, Paul <nospam@needed.invalid> wrote:
>> Is it better than the trivially crackable 40 bit WinZIP stuff ? YES :-)
>> At least, don't use 12345678 for the password, OK ?
>> Another option, is to do the crypto separately.
>
> I think the encryption just needs to be 'good enough' to get past the
> copyright censors for the few days that the file will be on the server.
>
> The only other issue is you don't know what software the recipient uses.
> So whatever encryption is used, it has to work on all 5 systems out there.

Neither of the high-compressors, is a public standard.

Which complicates the ability of others to write decompressors.

Decompressors may be available free (RAR only charges for compressors),
but the platform issue is something else entirely.

WinZIP stands the best chance of being cross-platform, due to its
longevity. But then, is the latest change to it, updated into
all the platforms. That, I don't know. I'm the guy who doesn't
own a smartphone, so those ecosystems remain a mystery to me.

If someone needs a container for distribution, they lean on ZIP
rather than BZ2, 7Z, or RAR. BZ2 is a bit slow on compression.

ZIP is used all sorts of places, but not all of it. Office documents
(.docx) use ZIP inside. Java .jar files are likely ZIP inside. Any time
a file format needs a "container", it seems to get used for that,
but that is likely to be sans-crypto. The backup programs don't
seem to use it, as they prefer something even lighter as a
compressor (speed-transparent).

*******

I seem to remember playing around with GPG perhaps (GNU Privacy Guard?).
I had some tool installed, fed it a couple test cases, and unknown to
me, it ran a compressor on my test file first, then encrypted the file.
(I don't recollect this being documented in the manual. I expected crypto-only.)
And you could specify something like RSA2048 or RSA4096, something like
that. At first, I couldn't figure out what the tool was doing, because
I happened to feed it a file full of zeros for my first test case.
It compressed the hell out of that, in no time flat, and "the screen blinked"
and it was done. And I figured "oh, it must still be running". I couldn't
figure out where the output went, and so on. It's possible something
like that is available on a few platforms. Perhaps the recipient-side
experience will be less-comedic :-)

Paul