AGGIORNAMENTO: codice di prova del concetto qui , l'output della console mostrato di seguito e tutti i certificati coinvolti sono here .
Ho appena notato che ECDiffieHellmanCng.DeriveKeyMaterial (...) si comporta in modo diverso su Windows 8.1 Enterprise (x64) e Windows 10 Prof (x64).
Specificamente, quando fai qualcosa di simile
byte[] SymKey12 = party1.DeriveKeyMaterial(party2);
byte[] SymKey21 = party2.DeriveKeyMaterial(party1);
i valori di SymKey12
e SymKey21
sono diversi su Windows 10 per diversi scenari ECDH secp384 e ECDH secp521 che sono passati bene su Windows 8.1.
Qualche idea?
Windows Server 2016 Tech Preview 3 (versione NT 10.0.10514.0) e Windows 10 output (versione NT 10.0.10240.0)
'Test ECC Alice secp521r1 SS' <=> 'Test ECC Bob secp521r1 SS'
> FAILURE < ECDH Keys are different!
SymKey12 = 22-46-6B-15-0F-9B-65-B0-D6-7D-AA-0E-C5-8A-7F-F3-18-1F-5F-62-88-26-90-67-DC-99-1B-98-73-3B-58-FF
SymKey21 = FD-C3-24-27-4C-4C-56-01-62-1E-B2-AE-B1-F6-68-64-61-72-EB-2E-6D-F4-30-21-F1-8A-73-C6-85-38-25-FA
------------------------------
'Test ECC Alice secp384r1 SS' <=> 'Test ECC Bob secp384r1 SS'
> FAILURE < ECDH Keys are different!
SymKey12 = F3-55-B0-72-49-DA-A5-6B-D7-3E-B7-F5-87-E7-4B-D1-20-A1-6E-67-EE-FF-C2-A9-12-E4-B0-20-46-F7-A5-FA
SymKey21 = 8C-63-5E-21-AC-BB-C1-AB-17-73-E2-E9-4D-95-20-07-6A-60-69-B1-E6-3B-18-EA-B6-56-FF-38-9F-F8-46-2F
------------------------------
'Test ECC Alice secp256r1 SS' <=> 'Test ECC Bob secp256r1 SS'
Success, ECDH Keys agree
------------------------------
'Alice secp521 test cert' <=> 'Bob secp521 test cert'
> FAILURE < ECDH Keys are different!
SymKey12 = B3-90-1C-1B-B0-66-BB-D8-A2-46-37-A9-E4-84-1F-FE-B8-ED-14-17-A8-D8-0C-EB-20-A0-98-5F-3A-85-73-3D
SymKey21 = 44-62-AD-3F-DA-D4-7E-17-49-05-C4-22-93-DD-36-B7-0D-28-47-93-E5-D4-63-03-00-BC-F8-99-DF-BA-A3-92
------------------------------
'Alice secp384 test cert' <=> 'Bob secp384 test cert'
Success, ECDH Keys agree
------------------------------
'Alice secp256 test cert' <=> 'Bob secp256 test cert'
Success, ECDH Keys agree
------------------------------
Press any key to exit ...
Uscita Windows 8 (versione NT 6.3.9600.0)
'Test ECC Alice secp521r1 SS' <=> 'Test ECC Bob secp521r1 SS'
Success, ECDH Keys agree
------------------------------
'Test ECC Alice secp384r1 SS' <=> 'Test ECC Bob secp384r1 SS'
Success, ECDH Keys agree
------------------------------
'Test ECC Alice secp256r1 SS' <=> 'Test ECC Bob secp256r1 SS'
Success, ECDH Keys agree
------------------------------
'Alice secp521 test cert' <=> 'Bob secp521 test cert'
Success, ECDH Keys agree
------------------------------
'Alice secp384 test cert' <=> 'Bob secp384 test cert'
Success, ECDH Keys agree
------------------------------
'Alice secp256 test cert' <=> 'Bob secp256 test cert'
Success, ECDH Keys agree
------------------------------
Press any key to exit ...