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Mar
30
comment Using the same private key for two ECC key pairs
First, I believe it to be an interesting theoretical question. Second, I have an application that allows one to generate key pairs (over different curves), store the private key in some secured storage and also to derive a public key from a stored private key. Therefore, a user can (in principle) generate a key pair for one curve and then use the same private key to derive a public key for another curve. I want to understand if allowing such an API could compromise the security.
Mar
30
awarded  Student
Mar
30
asked Using the same private key for two ECC key pairs