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'Severe' OpenSSL vuln busts public key crypto (Register)

'Severe' OpenSSL vuln busts public key crypto (Register)
[Security] Posted Mar 6, 2010 14:42 UTC (Sat) by corbet

The Register has posted an article on a reported OpenSSL vulnerability that allows attackers to obtain a system's private key. Before hitting the panic button, though, it's worth seeing what's involved in carrying out this attack: "The university scientists found that they could deduce tiny pieces of a private key by injecting slight fluctuations in a device's power supply as it was processing encrypted messages. In a little more than 100 hours, they fed the device enough 'transient faults' that they were able to assemble the entirety of its 1024-bit key." It could be a problem for keys hidden in embedded systems, but that is probably about the extent of it.

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