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seen Dec 12 '11 at 11:38

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Dec
8
comment Cracking plain RSA without private key
Sorry yes I meant decrypt. No padding used.
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Dec
7
comment Cracking plain RSA without private key
I totally agree with what you said above. Let me try make my self a bit more clear. Firstly, we do not have access to the server/oracle that encrypts messages. Therefore the method of using a given encryption of m1 and m2 so that we can determine the encryption c3 of m1 . m2 is impossible. The only thing accessible to us is a number of 'already cracked' messages, with their ciphertexts, (acquired from a database of encrypted messages) and the public key used to encrypt the plaintexts.
Dec
7
asked Cracking plain RSA without private key