Security Security of the key pair Performing both Diffie-Hellman and MQV does not impact the security of the key pair. Use of a key pair in both full and one-pass modes (for MQV or DH) does not impact the security of the key pair. Security of the protected data: ECDH/ECMQV Recipient may wish to ensure that data is always protected with their chosen algorithm family or mode. Security of the protected data: ECDSA Specification of the hash algorithm avoids message substitution attacks using weak hash algorithms |