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Ilmari Karonen
Ilmari Karonen
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Tweeted twitter.com/#!/StackCrypto/status/393582270134890496
Converted title into question, typo corrections, added "encryption" and "cryptanalysis" tags.
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Mike Edward Moras
Mike Edward Moras
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Find Knowing pre-encryption data, can we find the private key if some of message is knownCryptoLocker used?

One of our users seems to have been hit bbby CryptoLocker. As a result, he has a hard drive full of encrypted files. The ransomwareransom-ware claims to have used public key encryption on the files.

If we know exact contents of what some of the files were prior to them being encrypted, would it be feasible to use those files to discover the private key?

Find private key if some of message is known?

One of our users seems to have been hit bb CryptoLocker. As a result, he has a hard drive full of encrypted files. The ransomware claims to have used public key encryption on the files.

If we know exact contents of what some of the files were prior to being encrypted, would it be feasible to use those files to discover the private key?

Knowing pre-encryption data, can we find the private key CryptoLocker used?

One of our users seems to have been hit by CryptoLocker. As a result, he has a hard drive full of encrypted files. The ransom-ware claims to have used public key encryption on the files.

If we know exact contents of some of the files prior to them being encrypted, would it be feasible to use those files to discover the private key?

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poke
poke
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Find private key if some of message is known?

One of our users seems to have been hit bb CryptoLocker. As a result, he has a hard drive full of encrypted files. The ransomware claims to have used public key encryption on the files.

If we know exact contents of what some of the files were prior to being encrypted, would it be feasible to use those files to discover the private key?