RFC Errata
RFC 7574, "Peer-to-Peer Streaming Peer Protocol (PPSPP)", July 2015
Source of RFC: ppsp (tsv)See Also: RFC 7574 w/ inline errata
Errata ID: 4880
Status: Verified
Type: Technical
Publication Format(s) : TEXT
Reported By: Sung Hei Kim, Chang Kyu Lee
Date Reported: 2016-12-07
Verifier Name: Spencer Dawkins
Date Verified: 2017-08-21
Section 7.5 says:
A peer MUST include the content integrity method used by a swarm.
The code for this option is 3. Defined values are listed in Table 4.
+--------+-------------------------+
| Method | Description |
+--------+-------------------------+
| 0 | No integrity protection |
| 1 | Merkle Hash Tree |
| 2 | Sign All |
| 3 | Unified Merkle Tree |
| 4-255 | Unassigned |
+--------+-------------------------+
Table 4: PPSPP Content Integrity Protection Methods
It should say:
A peer MUST include the content integrity method used by a swarm.
The code for this option is 3. Defined values are listed in Table 4.
+--------+-------------------------+
| Method | Description |
+--------+-------------------------+
| 0 | Unassigned |
| 1 | Merkle Hash Tree |
| 2 | Sign All |
| 3 | Unified Merkle Tree |
| 4-255 | Unassigned |
+--------+-------------------------+
Table 4: PPSPP Content Integrity Protection Methods
Notes:
As stated in the first sentence of chapter 7.5, “A peer MUST include the content integrity method used by a swarm.”, “No integrity protection” must not be one of the option for PPSPP content integrity protection method. Or, IETF 7574 must define PPSP-PP that does not use the integrity protection method.
The proposed is to remove option of “No integrity protection” in Table 4.
Spencer: confirmed in conversations with Victor Grishchenko <victor.grishchenko@gmail.com> on the PPSP mailing list.