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Added tests to check if PUBS is invalid and made sure a valid PUBS is requested by default

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This commit is contained in:
Jan Rüth
2017-05-11 21:15:52 +02:00
parent f558bdebed
commit 6a0b2d04d6
2 changed files with 16 additions and 2 deletions
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10
handshake/server_config_client.go
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@@ -110,13 +110,21 @@ func (s *serverConfigClient) parseValues(tagMap map[Tag][]byte) error {
err := binary.Read(bytes.NewReader([]byte{pubs[i], pubs[i+1], pubs[i+2], 0x00}), binary.LittleEndian, &last_len);
if err != nil {
return qerr.Error(qerr.CryptoInvalidValueLength, "PUBS not decodable")
}
if last_len == 0 {
return qerr.Error(qerr.CryptoInvalidValueLength, "PUBS")
}
if i+3+int(last_len) > len(pubs) {
return qerr.Error(qerr.CryptoInvalidValueLength, "PUBS")
}
pubs_kexs = append(pubs_kexs, struct{Length uint32; Value []byte}{last_len, pubs[i+3:i+3+int(last_len)]})
}
if c255Foundat >= len(pubs_kexs) {
return qerr.Error(qerr.CryptoInvalidValueLength, "KEXS not in PUBS")
return qerr.Error(qerr.CryptoMessageParameterNotFound, "KEXS not in PUBS")
}
if pubs_kexs[c255Foundat].Length != 32 {