ECIES for Cosigner Security

[agouin]

Add option to use ECIES + ECDSA (fast) for cosigner encryption+signature instead of RSA + P5S (slow)

With RSA (20-60ms per block sign)

D[2023-06-20|20:59:28.017] I am the raft leader. Managing the sign process for this block module=validator chain_id=chain-1 height=20 round=0 step=2
D[2023-06-20|20:59:28.077] Have threshold peers                         module=validator chain_id=chain-1 height=20 round=0 step=2
D[2023-06-20|20:59:28.078] Number of ephemeral parts for peer           module=validator peer=1 count=1 chain_id=chain-1 height=20 round=0 step=2
D[2023-06-20|20:59:28.078] Number of ephemeral parts for peer           module=validator peer=3 count=1 chain_id=chain-1 height=20 round=0 step=2
D[2023-06-20|20:59:28.088] Received signature from peer                 module=validator peer=1 chain_id=chain-1 height=20 round=0 step=2
D[2023-06-20|20:59:28.090] Received signature from peer                 module=validator peer=3 chain_id=chain-1 height=20 round=0 step=2
D[2023-06-20|20:59:28.090] Done waiting for cosigners, assembling signatures module=validator chain_id=chain-1 height=20 round=0 step=2
D[2023-06-20|20:59:28.123] Have threshold peers                         module=validator chain_id=chain-1 height=20 round=0 step=2
D[2023-06-20|20:59:28.123] Number of ephemeral parts for peer           module=validator peer=2 count=1 chain_id=chain-1 height=20 round=0 step=2
D[2023-06-20|20:59:28.123] Number of ephemeral parts for peer           module=validator peer=3 count=1 chain_id=chain-1 height=20 round=0 step=2
D[2023-06-20|20:59:28.138] Received signature from peer                 module=validator peer=3 chain_id=chain-1 height=20 round=0 step=2
D[2023-06-20|20:59:28.140] Received signature from peer                 module=validator peer=2 chain_id=chain-1 height=20 round=0 step=2
D[2023-06-20|20:59:28.140] Done waiting for cosigners, assembling signatures module=validator chain_id=chain-1 height=20 round=0 step=2
D[2023-06-20|20:59:28.141] I am the raft leader. Managing the sign process for this block module=validator chain_id=chain-1 height=20 round=0 step=3
D[2023-06-20|20:59:28.176] Have threshold peers                         module=validator chain_id=chain-1 height=20 round=0 step=3
D[2023-06-20|20:59:28.176] Number of ephemeral parts for peer           module=validator peer=2 count=1 chain_id=chain-1 height=20 round=0 step=3
D[2023-06-20|20:59:28.176] Number of ephemeral parts for peer           module=validator peer=3 count=1 chain_id=chain-1 height=20 round=0 step=3
D[2023-06-20|20:59:28.178] I am the raft leader. Managing the sign process for this block module=validator chain_id=chain-1 height=20 round=0 step=3
D[2023-06-20|20:59:28.187] Received signature from peer                 module=validator peer=2 chain_id=chain-1 height=20 round=0 step=3
D[2023-06-20|20:59:28.194] Received signature from peer                 module=validator peer=3 chain_id=chain-1 height=20 round=0 step=3
D[2023-06-20|20:59:28.194] Done waiting for cosigners, assembling signatures module=validator chain_id=chain-1 height=20 round=0 step=3

With ECIES (3-5ms per block sign):

D[2023-06-20|20:51:41.768] I am the raft leader. Managing the sign process for this block module=validator chain_id=chain-2 height=35 round=0 step=3
D[2023-06-20|20:51:41.768] I am the raft leader. Managing the sign process for this block module=validator chain_id=chain-2 height=35 round=0 step=3
D[2023-06-20|20:51:41.768] Generated nonces                             module=validator cosigner=3 chain_id=chain-2 height=35 round=0 step=3
D[2023-06-20|20:51:41.769] Received nonces                              module=validator cosigner=1 chain_id=chain-2 height=35 round=0 step=3
D[2023-06-20|20:51:41.769] Have nonces from threshold number of cosigners module=validator chain_id=chain-2 height=35 round=0 step=3
D[2023-06-20|20:51:41.769] Received nonces                              module=validator cosigner=2 chain_id=chain-2 height=35 round=0 step=3
D[2023-06-20|20:51:41.770] Received signature part                      module=validator cosigner=3 chain_id=chain-2 height=35 round=0 step=3
D[2023-06-20|20:51:41.771] Received signature part                      module=validator cosigner=1 chain_id=chain-2 height=35 round=0 step=3
D[2023-06-20|20:51:41.771] Assembled full signature                     module=validator chain_id=chain-2 height=35 round=0 step=3
D[2023-06-20|20:51:42.722] I am the raft leader. Managing the sign process for this block module=validator chain_id=chain-1 height=41 round=0 step=1
D[2023-06-20|20:51:42.723] Generated nonces                             module=validator cosigner=3 chain_id=chain-1 height=41 round=0 step=1
D[2023-06-20|20:51:42.723] I am the raft leader. Managing the sign process for this block module=validator chain_id=chain-1 height=41 round=0 step=1
D[2023-06-20|20:51:42.724] Received nonces                              module=validator cosigner=2 chain_id=chain-1 height=41 round=0 step=1
D[2023-06-20|20:51:42.724] Have nonces from threshold number of cosigners module=validator chain_id=chain-1 height=41 round=0 step=1
D[2023-06-20|20:51:42.724] Received nonces                              module=validator cosigner=1 chain_id=chain-1 height=41 round=0 step=1
D[2023-06-20|20:51:42.724] Received signature part                      module=validator cosigner=3 chain_id=chain-1 height=41 round=0 step=1
D[2023-06-20|20:51:42.725] Received signature part                      module=validator cosigner=2 chain_id=chain-1 height=41 round=0 step=1
D[2023-06-20|20:51:42.725] Assembled full signature                     module=validator chain_id=chain-1 height=41 round=0 step=1
I[2023-06-20|20:51:42.726] Signed proposal                              module=validator chain_id=chain-1 height=41 round=0 type=SIGNED_MSG_TYPE_PROPOSAL sig=F57E5253CC1D ts=1687294302 node=chain-1-val-0-node-1-TestMultipleChainHorcrux:1234

[agouin]

Continued in #171