Is it possible to encrypt all files in a folder including their file names but totally without compression...

I have a folder with several files:

file1

file2

file3

I want to encrypt them all with AES including the file names so the output should be something like this:

kjk437fjk437

3k4jn34jk

j34nkj34

But I do not want to apply any compression at all.

Is it possible to do this with 7zip? I am using Debian and looking for Terminal based solutions only.

Edit: I also want to be able to get the filename back after decryption.

edited Jan 21 at 10:04

asked Jan 21 at 5:54

Vesa

170211

Please clarify your requirements: why do you need to avoid compression?

– grawity
Jan 21 at 8:17

Did you think of encrypting the filenames in an extra step as simple string encryption?

– Julian F. Weinert
Jan 21 at 16:43

add a comment |

I have a folder with several files:

file1

file2

file3

I want to encrypt them all with AES including the file names so the output should be something like this:

kjk437fjk437

3k4jn34jk

j34nkj34

But I do not want to apply any compression at all.

Is it possible to do this with 7zip? I am using Debian and looking for Terminal based solutions only.

Edit: I also want to be able to get the filename back after decryption.

edited Jan 21 at 10:04

asked Jan 21 at 5:54

Vesa

170211

Please clarify your requirements: why do you need to avoid compression?

– grawity
Jan 21 at 8:17

Did you think of encrypting the filenames in an extra step as simple string encryption?

– Julian F. Weinert
Jan 21 at 16:43

add a comment |

I have a folder with several files:

file1

file2

file3

I want to encrypt them all with AES including the file names so the output should be something like this:

kjk437fjk437

3k4jn34jk

j34nkj34

But I do not want to apply any compression at all.

Is it possible to do this with 7zip? I am using Debian and looking for Terminal based solutions only.

Edit: I also want to be able to get the filename back after decryption.

edited Jan 21 at 10:04

asked Jan 21 at 5:54

Vesa

170211

I have a folder with several files:

file1

file2

file3

I want to encrypt them all with AES including the file names so the output should be something like this:

kjk437fjk437

3k4jn34jk

j34nkj34

But I do not want to apply any compression at all.

Is it possible to do this with 7zip? I am using Debian and looking for Terminal based solutions only.

Edit: I also want to be able to get the filename back after decryption.

linux encryption 7-zip

edited Jan 21 at 10:04

asked Jan 21 at 5:54

Vesa

170211

edited Jan 21 at 10:04

asked Jan 21 at 5:54

Vesa

170211

edited Jan 21 at 10:04

asked Jan 21 at 5:54

Vesa

170211

asked Jan 21 at 5:54

Vesa

170211

asked Jan 21 at 5:54

Vesa

170211

Please clarify your requirements: why do you need to avoid compression?

– grawity
Jan 21 at 8:17

Did you think of encrypting the filenames in an extra step as simple string encryption?

– Julian F. Weinert
Jan 21 at 16:43

add a comment |

Please clarify your requirements: why do you need to avoid compression?

– grawity
Jan 21 at 8:17

Did you think of encrypting the filenames in an extra step as simple string encryption?

– Julian F. Weinert
Jan 21 at 16:43

Please clarify your requirements: why do you need to avoid compression?

– grawity
Jan 21 at 8:17

Did you think of encrypting the filenames in an extra step as simple string encryption?

– Julian F. Weinert
Jan 21 at 16:43

add a comment |

2 Answers
2

active

oldest

votes

You probably just want to hide the filename instead of to encrypt it, so something like the following should do:

for file in ./*;do 

  7z a $RANDOM-$RANDOM.7z -m1=copy -mhe -psecret "$file"; 

  rm "$file" 

done

-m1=copy means use copy method, so no compression.
-mhe means encrypt header, so without password one cannot view filenames inside the 7z file.
-psecret sets password to secret

answered Jan 21 at 7:55

David Dai

1,734819

Interesting. But how can I get the filename back when I want to decrypt again?

– Vesa
Jan 21 at 10:03

@Vesa the original filename is stored in the archive. You get the original file + filename back just by extracting it.

– David Dai
Jan 21 at 21:05

And this also AES encrypts the content of the file?

– Vesa
Jan 21 at 21:31

@Vesa I believe it does.

– David Dai
Jan 21 at 21:48

I will test it soon

– Vesa
Jan 22 at 0:10

|
show 2 more comments

Is 7zip a must? Choose the right tool. EncFS seems to be it.

Install it. In Debian: apt-get install encfs.

Create two directories: mkdir encrypted mountpoint.

Run the tool:
```
encfs "$PWD/encrypted" "$PWD/mountpoint"
```
Note you need $PWD/ instead of ./ because encfs doesn't accept relative paths (unless -f is used).

Proceed as instructed to choose encryption, password.

Copy or move all directories and files you want to encrypt to ./mountpoint. Encrypted directories and files will appear in the ./encrypted directory.

Unmount:
```
fusermount -u ./mountpoint
```

You can now copy/move/rename/tar/whatever the ./encrypted directory as a whole. Note there is a hidden .xml file inside. The file includes the (password protected) key which is crucial, so don't lose it. It's possible to store the file separetely (read about ENCFS6_CONFIG variable in man 1 encfs).

To access the original files, repeat step 3, provide the right password. Work with files under the chosen mountpoint: read, add, remove, modify, anything goes. Finally unmount with fusermount -u like in step 6.

Notes:

encfs is FUSE (filesystem in userspace). See Why FUSE might be considered insecure on server?

There are also EncFS-specific security concerns.

answered Jan 21 at 6:55

Kamil Maciorowski

27k155982

Cannot use encfs on this device, otherwise I would as I used to before.

– Vesa
Jan 21 at 10:02

@Vesa It's somewhat disappointing you knew about encfs and you knew you can't use it now, still you didn't explicitly ruled it out. I did notice you're asking about a 7zip solution; but sticking to some tool is often a Y in XY problem, while good answers should concentrate on X and this is what I was trying to do. The answer will stay (with other users in mind), unless you change the question so it clearly says encfs is not an option. Regardless, I do hope you'll get an answer that fits you. Good luck.

– Kamil Maciorowski
Jan 21 at 10:45

add a comment |

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

You probably just want to hide the filename instead of to encrypt it, so something like the following should do:

for file in ./*;do 

  7z a $RANDOM-$RANDOM.7z -m1=copy -mhe -psecret "$file"; 

  rm "$file" 

done

-m1=copy means use copy method, so no compression.
-mhe means encrypt header, so without password one cannot view filenames inside the 7z file.
-psecret sets password to secret

answered Jan 21 at 7:55

David Dai

1,734819

Interesting. But how can I get the filename back when I want to decrypt again?

– Vesa
Jan 21 at 10:03

@Vesa the original filename is stored in the archive. You get the original file + filename back just by extracting it.

– David Dai
Jan 21 at 21:05

And this also AES encrypts the content of the file?

– Vesa
Jan 21 at 21:31

@Vesa I believe it does.

– David Dai
Jan 21 at 21:48

I will test it soon

– Vesa
Jan 22 at 0:10

|
show 2 more comments

You probably just want to hide the filename instead of to encrypt it, so something like the following should do:

for file in ./*;do 

  7z a $RANDOM-$RANDOM.7z -m1=copy -mhe -psecret "$file"; 

  rm "$file" 

done

-m1=copy means use copy method, so no compression.
-mhe means encrypt header, so without password one cannot view filenames inside the 7z file.
-psecret sets password to secret

answered Jan 21 at 7:55

David Dai

1,734819

Interesting. But how can I get the filename back when I want to decrypt again?

– Vesa
Jan 21 at 10:03

@Vesa the original filename is stored in the archive. You get the original file + filename back just by extracting it.

– David Dai
Jan 21 at 21:05

And this also AES encrypts the content of the file?

– Vesa
Jan 21 at 21:31

@Vesa I believe it does.

– David Dai
Jan 21 at 21:48

I will test it soon

– Vesa
Jan 22 at 0:10

|
show 2 more comments

You probably just want to hide the filename instead of to encrypt it, so something like the following should do:

for file in ./*;do 

  7z a $RANDOM-$RANDOM.7z -m1=copy -mhe -psecret "$file"; 

  rm "$file" 

done

-m1=copy means use copy method, so no compression.
-mhe means encrypt header, so without password one cannot view filenames inside the 7z file.
-psecret sets password to secret

answered Jan 21 at 7:55

David Dai

1,734819

You probably just want to hide the filename instead of to encrypt it, so something like the following should do:

for file in ./*;do 

  7z a $RANDOM-$RANDOM.7z -m1=copy -mhe -psecret "$file"; 

  rm "$file" 

done

-m1=copy means use copy method, so no compression.
-mhe means encrypt header, so without password one cannot view filenames inside the 7z file.
-psecret sets password to secret

answered Jan 21 at 7:55

David Dai

1,734819

answered Jan 21 at 7:55

David Dai

1,734819

answered Jan 21 at 7:55

David Dai

1,734819

answered Jan 21 at 7:55

David Dai

1,734819

Interesting. But how can I get the filename back when I want to decrypt again?

– Vesa
Jan 21 at 10:03

@Vesa the original filename is stored in the archive. You get the original file + filename back just by extracting it.

– David Dai
Jan 21 at 21:05

And this also AES encrypts the content of the file?

– Vesa
Jan 21 at 21:31

@Vesa I believe it does.

– David Dai
Jan 21 at 21:48

I will test it soon

– Vesa
Jan 22 at 0:10

|
show 2 more comments

Interesting. But how can I get the filename back when I want to decrypt again?

– Vesa
Jan 21 at 10:03

@Vesa the original filename is stored in the archive. You get the original file + filename back just by extracting it.

– David Dai
Jan 21 at 21:05

And this also AES encrypts the content of the file?

– Vesa
Jan 21 at 21:31

@Vesa I believe it does.

– David Dai
Jan 21 at 21:48

I will test it soon

– Vesa
Jan 22 at 0:10

Interesting. But how can I get the filename back when I want to decrypt again?

– Vesa
Jan 21 at 10:03

@Vesa the original filename is stored in the archive. You get the original file + filename back just by extracting it.

– David Dai
Jan 21 at 21:05

And this also AES encrypts the content of the file?

– Vesa
Jan 21 at 21:31

@Vesa I believe it does.

– David Dai
Jan 21 at 21:48

I will test it soon

– Vesa
Jan 22 at 0:10

|
show 2 more comments

Is 7zip a must? Choose the right tool. EncFS seems to be it.

Install it. In Debian: apt-get install encfs.

Create two directories: mkdir encrypted mountpoint.

Run the tool:
```
encfs "$PWD/encrypted" "$PWD/mountpoint"
```
Note you need $PWD/ instead of ./ because encfs doesn't accept relative paths (unless -f is used).

Proceed as instructed to choose encryption, password.

Copy or move all directories and files you want to encrypt to ./mountpoint. Encrypted directories and files will appear in the ./encrypted directory.

Unmount:
```
fusermount -u ./mountpoint
```

Notes:

encfs is FUSE (filesystem in userspace). See Why FUSE might be considered insecure on server?

There are also EncFS-specific security concerns.

answered Jan 21 at 6:55

Kamil Maciorowski

27k155982

Cannot use encfs on this device, otherwise I would as I used to before.

– Vesa
Jan 21 at 10:02

@Vesa It's somewhat disappointing you knew about encfs and you knew you can't use it now, still you didn't explicitly ruled it out. I did notice you're asking about a 7zip solution; but sticking to some tool is often a Y in XY problem, while good answers should concentrate on X and this is what I was trying to do. The answer will stay (with other users in mind), unless you change the question so it clearly says encfs is not an option. Regardless, I do hope you'll get an answer that fits you. Good luck.

– Kamil Maciorowski
Jan 21 at 10:45

add a comment |

Is 7zip a must? Choose the right tool. EncFS seems to be it.

Install it. In Debian: apt-get install encfs.

Create two directories: mkdir encrypted mountpoint.

Run the tool:
```
encfs "$PWD/encrypted" "$PWD/mountpoint"
```
Note you need $PWD/ instead of ./ because encfs doesn't accept relative paths (unless -f is used).

Proceed as instructed to choose encryption, password.

Copy or move all directories and files you want to encrypt to ./mountpoint. Encrypted directories and files will appear in the ./encrypted directory.

Unmount:
```
fusermount -u ./mountpoint
```

Notes:

encfs is FUSE (filesystem in userspace). See Why FUSE might be considered insecure on server?

There are also EncFS-specific security concerns.

answered Jan 21 at 6:55

Kamil Maciorowski

27k155982

Cannot use encfs on this device, otherwise I would as I used to before.

– Vesa
Jan 21 at 10:02

@Vesa It's somewhat disappointing you knew about encfs and you knew you can't use it now, still you didn't explicitly ruled it out. I did notice you're asking about a 7zip solution; but sticking to some tool is often a Y in XY problem, while good answers should concentrate on X and this is what I was trying to do. The answer will stay (with other users in mind), unless you change the question so it clearly says encfs is not an option. Regardless, I do hope you'll get an answer that fits you. Good luck.

– Kamil Maciorowski
Jan 21 at 10:45

add a comment |

Is 7zip a must? Choose the right tool. EncFS seems to be it.

Install it. In Debian: apt-get install encfs.

Create two directories: mkdir encrypted mountpoint.

Run the tool:
```
encfs "$PWD/encrypted" "$PWD/mountpoint"
```
Note you need $PWD/ instead of ./ because encfs doesn't accept relative paths (unless -f is used).

Proceed as instructed to choose encryption, password.

Copy or move all directories and files you want to encrypt to ./mountpoint. Encrypted directories and files will appear in the ./encrypted directory.

Unmount:
```
fusermount -u ./mountpoint
```

Notes:

encfs is FUSE (filesystem in userspace). See Why FUSE might be considered insecure on server?

There are also EncFS-specific security concerns.

answered Jan 21 at 6:55

Kamil Maciorowski

27k155982

Is 7zip a must? Choose the right tool. EncFS seems to be it.

Install it. In Debian: apt-get install encfs.

Create two directories: mkdir encrypted mountpoint.

Run the tool:
```
encfs "$PWD/encrypted" "$PWD/mountpoint"
```
Note you need $PWD/ instead of ./ because encfs doesn't accept relative paths (unless -f is used).

Proceed as instructed to choose encryption, password.

Copy or move all directories and files you want to encrypt to ./mountpoint. Encrypted directories and files will appear in the ./encrypted directory.

Unmount:
```
fusermount -u ./mountpoint
```

Notes:

encfs is FUSE (filesystem in userspace). See Why FUSE might be considered insecure on server?

There are also EncFS-specific security concerns.

answered Jan 21 at 6:55

Kamil Maciorowski

27k155982

answered Jan 21 at 6:55

Kamil Maciorowski

27k155982

answered Jan 21 at 6:55

Kamil Maciorowski

27k155982

answered Jan 21 at 6:55

Kamil Maciorowski

27k155982

Cannot use encfs on this device, otherwise I would as I used to before.

– Vesa
Jan 21 at 10:02

@Vesa It's somewhat disappointing you knew about encfs and you knew you can't use it now, still you didn't explicitly ruled it out. I did notice you're asking about a 7zip solution; but sticking to some tool is often a Y in XY problem, while good answers should concentrate on X and this is what I was trying to do. The answer will stay (with other users in mind), unless you change the question so it clearly says encfs is not an option. Regardless, I do hope you'll get an answer that fits you. Good luck.

– Kamil Maciorowski
Jan 21 at 10:45

add a comment |

Cannot use encfs on this device, otherwise I would as I used to before.

– Vesa
Jan 21 at 10:02

@Vesa It's somewhat disappointing you knew about encfs and you knew you can't use it now, still you didn't explicitly ruled it out. I did notice you're asking about a 7zip solution; but sticking to some tool is often a Y in XY problem, while good answers should concentrate on X and this is what I was trying to do. The answer will stay (with other users in mind), unless you change the question so it clearly says encfs is not an option. Regardless, I do hope you'll get an answer that fits you. Good luck.

– Kamil Maciorowski
Jan 21 at 10:45

Cannot use encfs on this device, otherwise I would as I used to before.

– Vesa
Jan 21 at 10:02

@Vesa It's somewhat disappointing you knew about encfs and you knew you can't use it now, still you didn't explicitly ruled it out. I did notice you're asking about a 7zip solution; but sticking to some tool is often a Y in XY problem, while good answers should concentrate on X and this is what I was trying to do. The answer will stay (with other users in mind), unless you change the question so it clearly says encfs is not an option. Regardless, I do hope you'll get an answer that fits you. Good luck.

– Kamil Maciorowski
Jan 21 at 10:45

add a comment |

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