Given public key (RSA) encrypted with symmetric key (password) and if password is weak, then how is it possible to find password using given encrypted public key only.
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Besides that you'll normally not encrypt the public key (the purpose of it is being public), a weak password can always be found using brute force. – PMF Jan 23 '14 at 14:51
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@PMF if the public key is ephimeral then how is it possible to find by brute force? – B Avinash Jan 23 '14 at 14:54
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I don't exactly know what ephemeral means here, but when you get something encrypted, you can always use brute force to crack it. – PMF Jan 23 '14 at 14:59