Alvo is a tiny stand alone application
with only 38K size, which encrypt/decrypt any kind of files.
It uses a very safe and fast csprng algorithm on
stream cipher, and erase files permanently. Bellow is an explanation how it works. From the left to
right, the first column is the
list with the filenames, the second is the extension, and the right one is the
correspondent file sizes in Bytes. Grey lines are the files not encrypted;
white line is the file selected to encrypt; bright red line is the file
selected to decrypt. Red lines are files already encrypted by Alvo. This application uses 2^160 key.
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/\|_\/() |
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00A 2,053,842 |
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00B 2,053,842 |
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06MB70 TXT 3,165 |
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070209 TXT 28 |
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090209 TXT 50 |
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0TMB71 TXT 810 |
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10N2A1 TXT 24 |
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12N12A3 TXT 144 |
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13-01-20 TXT 2,619 |
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TEST TXT 1,944 |
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14N13A3 TXT 156 |
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15-01-20 TXT 1,458 |
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150109 TXT 990 |
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15MB70 TXT 3,555 |
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15N3A1 TXT 36 |
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160109 TXT 1,950 |
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170109 TXT 200 |
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18N8A2 TXT 96 |
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200 626,628 |
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Up arrow |
Move Up one file |
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Down arrow |
Move Down one file |
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Left arrow |
Move left one character |
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Right arrow |
Move right one character |
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PgUp |
Move Up 19 files |
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PgDw |
Move Down 19 files |
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Home |
Go to first file |
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End |
Go to last file |
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Any character |
Alphabetic selection |
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Enter |
Choose the file |
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Delete a file permanently |
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Esc |
Backward function until end |
Select a file using the
above keys and press Enter on the bright line, e.g. TEST.TXT. After
that you can write your key to encrypt/decrypt the selected file.
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/\|_\/() |
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00A 2,053,842 |
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00B 2,053,842 |
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06MB70 TXT 3,165 |
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070209 TXT 28 |
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090209 TXT 50 |
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0TMB71 TXT 810 |
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10N2A1 TXT 24 |
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12N12A3 TXT 144 |
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13-01-20 TXT 2,619 |
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TEST TXT 1,944 write here your key |
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14N13A3 TXT 156 |
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15-01-20 TXT 1,458 |
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150109 TXT 990 |
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15MB70 TXT 3,555 |
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15N3A1 TXT 36 |
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160109 TXT 1,950 |
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170109 TXT 200 |
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18N8A2 TXT 96 |
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200 626,628 |
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Here you can write the key
in two different ways. Simply by pressing keys, or using the Left/Right,
to place the cursor, and the Up/Down, to choose the characters. After that press
Enter and the file will be start to encrypt/decrypt. On the right of the file size, is showed the
encrypt/decrypt evolution process.
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/\|_\/() |
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00A 2,053,842 |
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00B 2,053,842 |
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06MB70 TXT 3,165 |
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070209 TXT 28 |
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090209 TXT 50 |
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0TMB71 TXT 810 |
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10N2A1 TXT 24 |
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12N12A3 TXT 144 |
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13-01-20 TXT 2,619 |
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TEST TXT 1,944 |||||||||||||||||||||||| |
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14N13A3 TXT 156 |
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15-01-20 TXT 1,458 |
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150109 TXT 990 |
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15MB70 TXT 3,555 |
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15N3A1 TXT 36 |
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160109 TXT 1,950 |
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170109 TXT 200 |
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18N8A2 TXT 96 |
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200 626,628 |
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After the encrypt process
the white line will be changed to bright red meaning the file was encrypted by Alvo. To decrypt the file, do the same
way with the original key.
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/\|_\/() |
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00A 2,053,842 |
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00B 2,053,842 |
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06MB70 TXT 3,165 |
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070209 TXT 28 |
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090209 TXT 50 |
|
0TMB71 TXT 810 |
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10N2A1 TXT 24 |
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12N12A3 TXT 144 |
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13-01-20 TXT 2,619 |
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TEST TXT 1,944 |
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14N13A3 TXT 156 |
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15-01-20 TXT 1,458 |
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150109 TXT 990 |
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15MB70 TXT 3,555 |
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15N3A1 TXT 36 |
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160109 TXT 1,950 |
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170109 TXT 200 |
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18N8A2 TXT 96 |
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200 626,628 |
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To decrypt a file, choose a
red line, and press Enter. Write the original key and press Enter
Again. After that, and if the key is correct, the file is decrypted.
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/\|_\/() |
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00A 2,053,842 |
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00B 2,053,842 |
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06MB70 TXT 3,165 |
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070209 TXT 28 |
|
090209 TXT 50 |
|
0TMB71 TXT 810 |
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10N2A1 TXT 24 |
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12N12A3 TXT 144 |
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13-01-20 TXT 2,619 |
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TEST TXT 1,944 |
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14N13A3 TXT 156 |
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15-01-20 TXT 1,458 |
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150109 TXT 990 |
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15MB70 TXT 3,555 |
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15N3A1 TXT 36 |
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160109 TXT 1,950 |
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170109 TXT 200 |
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18N8A2 TXT 96 |
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200 626,628 |
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To delete a file press
October 2009 - Ribeiro Alvo