Re: Padding schemes [was Differences between RSA and ECDSA - Conceptual and Practical]

2011-10-14 Thread Jakob Bohm
On 10/13/2011 7:17 PM, Dirk Menstermann wrote: Hello Jakob, On 12.10.2011 22:21, Jakob Bohm wrote: I know that to sign, i have to take a hash of some document or message but, theoretically, i could encrypt any document? The padding scheme would shrink the message and them could reveal the

Re: Padding schemes [was Differences between RSA and ECDSA - Conceptual and Practical]

2011-10-14 Thread Dirk Menstermann
Thanks, On 14.10.2011 13:16, Jakob Bohm wrote: Unfortunately not, I am a security engineer, not a fully trained cryptographer/cryptanalyst. As an engineer I am aware that attacking an algorithm such as RSA is easier the more the attacker knows or can control about the input, and that

Re: Padding schemes [was Differences between RSA and ECDSA - Conceptual and Practical]

2011-10-13 Thread Dirk Menstermann
Hello Jakob, On 12.10.2011 22:21, Jakob Bohm wrote: I know that to sign, i have to take a hash of some document or message but, theoretically, i could encrypt any document? The padding scheme would shrink the message and them could reveal the same message after deciphering? The padding