StackOverflow2013

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plurals

PO
primarykey
Id
292300
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2008-11-15T08:13:59.437
FavoriteCount
0
LastActivityDate
2008-11-15T08:13:59.437
LastEditDate
LastEditorUserId
0
OwnerUserId
3553
ParentId
292276
PostTypeId
2
Score
4
ViewCount
0
LastEditorDisplayName
text
Body
Sounds like you might be looking for some "classical cryptography" solutions. SUBSTITUTION CIPHERS are encodings where one character is substituted with another. E.g. A->Y, B->Q, C->P, and so on. The "Caesar Cipher" is a special case where the order is preserved, and the "key" is the offset. In the rot13/47 case, the "key" is 13 or 47, respectively, though it could be something like 3 (A->D, B->E, C->F, ...). <hr> TRANSPOSITION CIPHERS are ones that don't substitute letters, but ones that rearrange letters in a pre-defined way. For example: <pre><code>CRYPTOGRAPHY </code></pre> may be written as <pre><code>C Y T G A H R P O R P Y </code></pre> So the ciphered output is created by reading the two lines left to right <pre><code>CYTGAHRPORPY </code></pre> <hr> Another property of rot13/47 is that it's REVERSABLE: <pre><code>encode(encode(plaintext)) == plaintext </code></pre> If this is the property you want, you could simply XOR the message with a known (previously decided) XOR value. Then, XOR-ing the ciphertext with the same value will return the original plaintext. An example of this would be the <a href="http://www.gnu.org/software/libtool/manual/libc/Trivial-Encryption.html" rel="nofollow noreferrer">memfrob function</a>, which just XORs a buffer with the binary representation of the number 42. <hr> You also might check out other forms of ENCODINGS, such as <a href="http://en.wikipedia.org/wiki/Base64" rel="nofollow noreferrer">Base64</a> if that's closer to what you're looking for. <hr> !! Disclaimer - if you have data that you're actually trying to protect from anyone, don't use any of these methods. While entertaining, all of these methods are trivial to break.
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singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POkeyless ciphers of ROT13/47 ilk
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 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. This table or related slice is empty.
UserOwnerUserId
1. USBen
plurals
PostLinksPostIdRelatedPostId
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PostLinksRelatedPostIdPostId
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PostsAcceptedAnswerId
1. POkeyless ciphers of ROT13/47 ilk
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 PTQuestion
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
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 PO
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 VTUpMod
2. VO
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 VTAcceptedByOriginator
3. VO
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CommentsPostId
1. This table or related slice is empty.

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