RsaCtfTool

With this: “openssl rsa -inform PEM -text -noout -pubin -in pubkey.pem”

RSA Public-Key: (1535 bit)
Modulus:
77:d1:e3:2b:fe:41:fb:07:61:2b:cb:95:2e:8b:19:
6d:9c:30:39:41:dd:19:47:d4:fb:5e:0f:b8:0d:ea:
75:38:2a:1c:8c:95:1c:e7:39:44:08:ed:c8:01:d3:
cd:9b:b4:c5:ac:d6:eb:0f:61:f5:12:ae:a9:03:b3:
ed:44:0e:bc:f3:c3:8d:8c:1b:af:37:62:f2:e5:25:
17:dc:3b:6b:32:73:e6:0d:25:30:ea:b5:51:d6:e5:
5d:d2:34:9d:89:f9:62:82:c3:40:39:f9:a6:f6:a8:
0f:ac:7e:14:45:86:f3:c9:ee:0b:0b:bd:48:fe:6e:
5b:79:ab:07:b2:19:58:5e:30:e4:2f:cb:e5:97:23:
e5:62:fe:3c:2d:95:6d:e2:b7:6e:64:04:b6:54:a0:
44:83:06:0f:87:64:a9:f1:cf:73:20:70:9e:97:ae:
83:1d:8c:f3:f0:4c:7d:9f:f2:c3:ab:09:32:35:8c:
9c:cd:51:8c:49:f4:94:34:40:f4:eb:c7
Exponent: 65537 (0x10001)