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Decrypting without knowing the key

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kimimaori -  
fiddy Posted messages 441 Registration date   Status Contributor Last intervention   -
Hello,

I would like to retrieve an encrypted email but I have no keys (public/private).
I think the email sent from a company has been encrypted deliberately or not. But for me, how can I decrypt it without knowing any key?
Thank you for your help.

K:-)
Configuration: Windows XP Internet Explorer 8.0

6 answers

  1. a Gary Kildall fan
     
    try with ROT13 or BINHEX or MIME64 filters... you never know
    1
    1. iAPX286
       
      Do you mean Base64?
      0
  2. fiddy Posted messages 441 Registration date   Status Contributor Last intervention   1 847
     
    Hi,
    By definition of decryption, it’s without a key ;-))).
    Current cryptographic means are relatively secure. And you won’t be able to decrypt them.

    Regards,
    --

    Google is your friend
    0
  3. kimimaori
     
    Thank you for the reply.
    The message is in 0ay8QAYAq8.... etc.

    I was advised a bit earlier to try PGP but it’s impossible to download this software. Do you know it? It seems to have been removed from all sites, apparently.

    Thanks Fiddy.

    K:-)
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  4. Pacorabanix Posted messages 4122 Registration date   Status Member Last intervention   663
     
    Do you at least know which method was used to encrypt it? If it's a standard encryption I don't see how software could do that...

    Looking at the PGP site, they are indeed specialized in security, but they sell their software; they don't make it available anywhere. And even there, as I told you, you can't really "break" a current standard encryption, unless you have a lot, a lot of time...
    0
  6. kimimaori
     
    Thank you everyone,

    But I’m not a computer scientist!! Help. What is all that?
    Is it accessible to the average person? ;-)

    K
    0
  7. kimimaori
     
    Eureka!!

    You are right IaPX286, it was Base 64 code.
    Thanks to everyone because I’ve been trying to decipher the email for two months.
    End of the puzzle. Phew that feels good!

    Thank you!

    K:-)
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    1. fiddy Posted messages 441 Registration date   Status Contributor Last intervention   1 847
       
      Just to add some information I consider important.
      You mentioned encryption at the beginning. Base64 is not an encryption algorithm but an encoding one.
      If it had been an encryption algorithm (AES, ...), you wouldn't have been able to decrypt it (except in very particular cases). Here it's a form of encoding, just like ASCII code (even if it seems encrypted).

      Regards
      --

      Google is your friend
      0