43 lines
1007 B
Go
43 lines
1007 B
Go
package ntlmssp
|
|
|
|
import (
|
|
"crypto/hmac"
|
|
"crypto/md5"
|
|
"strings"
|
|
|
|
"github.com/zmap/zgrab2/lib/smb/smb/encoder"
|
|
"golang.org/x/crypto/md4"
|
|
)
|
|
|
|
func Ntowfv1(pass string) []byte {
|
|
hash := md4.New()
|
|
hash.Write(encoder.ToUnicode(pass))
|
|
return hash.Sum(nil)
|
|
}
|
|
|
|
func Ntowfv2(pass, user, domain string) []byte {
|
|
h := hmac.New(md5.New, Ntowfv1(pass))
|
|
h.Write(encoder.ToUnicode(strings.ToUpper(user) + domain))
|
|
return h.Sum(nil)
|
|
}
|
|
|
|
func Lmowfv2(pass, user, domain string) []byte {
|
|
return Ntowfv2(pass, user, domain)
|
|
}
|
|
|
|
func ComputeResponseNTLMv2(nthash, lmhash, clientChallenge, serverChallenge, timestamp, serverName []byte) []byte {
|
|
|
|
temp := []byte{1, 1}
|
|
temp = append(temp, 0, 0, 0, 0, 0, 0)
|
|
temp = append(temp, timestamp...)
|
|
temp = append(temp, clientChallenge...)
|
|
temp = append(temp, 0, 0, 0, 0)
|
|
temp = append(temp, serverName...)
|
|
temp = append(temp, 0, 0, 0, 0)
|
|
|
|
h := hmac.New(md5.New, nthash)
|
|
h.Write(append(serverChallenge, temp...))
|
|
ntproof := h.Sum(nil)
|
|
return append(ntproof, temp...)
|
|
}
|