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POIs there a way to alter a public key in a way that the decryption can still be done with the private key after some alteration?
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2361631
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2010-03-02T08:03:12.527
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2012-12-31T08:24:26.747
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2010-03-02T08:47:12.173
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Body
In an asymetric encryption scheme, I was wondering if it's possible to achieve the following: <ol> <li>Bob sends to Alice his public key</li> <li>Alice alters Bob's public key and encrypt some document with it</li> <li>Alice sends the encrypted document to Bob</li> <li>Bob retrieve the document but can't decrypt it with his private key</li> <li>Later, Alice sends some additional information (probably related to the method she used to alter Bob's public key) to Bob</li> <li>Bob uses this additional information to modify his private key and successfully decrypt the document</li> </ol> Anyone? I am assuming RSA for the keys generation, encryption and decryption but if it's easier to do with another scheme feel free to comment.
Tags
<encryption><public-key><encryption-asymmetric><private-key>
Title
Is there a way to alter a public key in a way that the decryption can still be done with the private key after some alteration?
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1. PO
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1. USKenji Baheux
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1. USKenji Baheux
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