Encoding with base64

echo "Hello world" | base64
Also works with files: cat file Hello world base64 file SGVsbG8gd29ybGQK To decrypt use the -d option: echo SGVsbG8gd29ybGQK | base64 -d Hello world
Sample Output
SGVsbG8gd29ybGQK

-3
By: P17
2009-04-27 15:00:08

These Might Interest You

  • Just for fun, I searched a simple way to encrypt some text. Simple base64 encoding seemed a good start so I decided to "amplify" encoding using repeted base64 encoding. Of course, this is not really secure but can be useful to hide datas to most part of humans ;). Do not hesitate to provide better solutions or else. Show Sample Output


    1
    str=password; for i in `seq 1 10`; do echo -e "$str\n"; str="$(base64 <<< $str)"; done
    n3wborn · 2011-10-04 18:01:54 0
  • I have a mac, and do not want to install mac ports to get the base64 binary. Using openssl will do the trick just fine. Note, to decode base64, specify a '-d' after 'base64' in the command. Note also the files base64.decoded.txt and base64.encoded.txt are text files.


    3
    openssl base64 -in base64.decoded.txt -out base64.encoded.txt
    argherna · 2010-08-13 20:39:10 0
  • Dependencies on phone: adb access, screencap command, base64 command. Dependencies on computer: adb, sed, base64, display (from imagemagick, but can substitute other image viewer which reads from stdin). This should work around adb stupidies (i.e. that it replaces \n with \r\n) with base64.


    4
    adb shell "screencap -p | base64" | sed 's/\r$//' | base64 -d | display
    T4b · 2016-02-07 18:46:35 1

  • 4
    iconv -f utf8 -t utf16 /path/to/file
    imsaar · 2009-12-01 21:02:58 0

What Others Think

Encryption is not the word I would use. Because what you are doing is not by any means creating a difficult-to-read version, since anybody has the tool to "decrypt" it. I would rather use the word "obfuscation", and I'm not even so sure of that.
pruneau · 477 weeks and 4 days ago
It's not encryption. It's hashing. Use gpg for encryption, or some other tool like truecrypt. My fav algo is rijndael
linuxrawkstar · 477 weeks and 4 days ago
Base64 is not hashing either. it is simply character translation, encoding 8 bit characters into 6 bits. Useful for stuff that cannot handle full ASCII such as email. Use something like md5 for a true hash.
nitehawk · 477 weeks and 4 days ago
it's called coding. Not encryption
oernii · 477 weeks and 3 days ago
Yes, this is encoding, not encryption. The benefit of base64 encoding, though, is that any arbitrary binary stream may be base64-encoded. (ASCII has nothing to do with it. In fact, to be precise, ASCII is a 7-bit encoding scheme. Anybody remember parity bits?)
bjimba · 477 weeks ago
Encryption method are not necessarily hard to break. base64 is an encryption method as it turns plaintext into something that you can only read if you have special knowledge. It is not the worst method either; a Cesar cipher like rot13 maps identical characters in the plaintext to identical characters in the ciphertext, base64 does not.
penpen · 476 weeks and 5 days ago
> Yes, this is encoding, not encryption. Yes, you`re right. I changed the title from "encryption" into "encoding".
P17 · 476 weeks and 2 days ago
Do not add a line break in your codded string. Use the -n echo's option: echo -n "Hello world" | base64
aurium · 473 weeks and 4 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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