Ho stabilito una connessione con facebook.com e ho bisogno del punto che viene utilizzato nella firma. Ho la chiave pubblica e il certificato. Anche con il comando:
openssl ec -pubin -in facebook_pub.key -noout -text -param_enc explicit
Ottengo quell'output:
read EC key
Public-Key: (256 bit)
pub:
04:a0:f1:8c:af:a7:39:88:68:5b:13:56:0e:15:15:
b4:a7:45:ef:1b:c7:e5:85:3c:2b:04:d4:65:8a:31:
31:22:ea:a3:92:ed:64:9d:ba:65:81:e3:b6:12:76:
d8:b3:0b:45:f1:ff:0a:28:14:9c:4f:dc:73:a9:b3:
49:2d:a0:76:d3
Field Type: prime-field
Prime:
00:ff:ff:ff:ff:00:00:00:01:00:00:00:00:00:00:
00:00:00:00:00:00:ff:ff:ff:ff:ff:ff:ff:ff:ff:
ff:ff:ff
A:
00:ff:ff:ff:ff:00:00:00:01:00:00:00:00:00:00:
00:00:00:00:00:00:ff:ff:ff:ff:ff:ff:ff:ff:ff:
ff:ff:fc
B:
5a:c6:35:d8:aa:3a:93:e7:b3:eb:bd:55:76:98:86:
bc:65:1d:06:b0:cc:53:b0:f6:3b:ce:3c:3e:27:d2:
60:4b
Generator (uncompressed):
04:6b:17:d1:f2:e1:2c:42:47:f8:bc:e6:e5:63:a4:
40:f2:77:03:7d:81:2d:eb:33:a0:f4:a1:39:45:d8:
98:c2:96:4f:e3:42:e2:fe:1a:7f:9b:8e:e7:eb:4a:
7c:0f:9e:16:2b:ce:33:57:6b:31:5e:ce:cb:b6:40:
68:37:bf:51:f5
Order:
00:ff:ff:ff:ff:00:00:00:00:ff:ff:ff:ff:ff:ff:
ff:ff:bc:e6:fa:ad:a7:17:9e:84:f3:b9:ca:c2:fc:
63:25:51
Cofactor: 1 (0x1)
Seed:
c4:9d:36:08:86:e7:04:93:6a:66:78:e1:13:9d:26:
b7:81:9f:7e:90
Con questa uscita posso vedere il primo, A, B e il generatore. Ma posso vedere Px e Py. Qualcuno sa come trovarlo?