[lsd0001] branch master updated: purpose

[gnunet]

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martin-schanzenbach pushed a commit to branch master
in repository lsd0001.

The following commit(s) were added to refs/heads/master by this push:
     new f95fe19  purpose
f95fe19 is described below

commit f95fe19f7a37225f111703d2cddfe680aeb3638d
Author: Martin Schanzenbach <schanzen@gnunet.org>
AuthorDate: Tue Feb 8 21:44:27 2022 +0100

    purpose
---
 draft-schanzen-gns.xml | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/draft-schanzen-gns.xml b/draft-schanzen-gns.xml
index 59f56f4..d46e8b2 100644
--- a/draft-schanzen-gns.xml
+++ b/draft-schanzen-gns.xml
@@ -752,8 +752,14 @@ zTLD := zkl[126..129].zkl[63..125].zkl[0..62]
          </dd>
          <dt>PURPOSE</dt>
          <dd>
-           A 32-bit signature purpose flag. This field MUST be 3 (in network
-           byte order).
+           A 32-bit signature purpose flag.
+           The value of this field MUST be 3.
+           The value is encoded in network byte order.
+           It defines the context in which
+           the signature is created so that it cannot be reused in other parts
+           of the protocol including possible future extensions.
+           The value of this field corresponds to an entry in the
+           GANA "GNUnet Signature Purpose" registry <xref target="gana"/>.
          </dd>
          <dt>TIMESTAMP</dt>
          <dd>
@@ -1796,10 +1802,14 @@ q := SHA-512 (ZKDF-Public(zk, label))
          </dd>
          <dt>PURPOSE</dt>
          <dd>
-           A 32-bit signature purpose flag. For a RRBLOCK the value of this
-           field MUST be 15. The value is encoded in network byte order.
+           A 32-bit signature purpose flag. The value of this
+           field MUST be 15.
+           The value is encoded in network byte order.
+           It defines the context in which
+           the signature is created so that it cannot be reused in other parts
+           of the protocol including possible future extensions.
            The value of this field corresponds to an entry in the
-           GANA "GNUnet Signature Purpose" registry.
+           GANA "GNUnet Signature Purpose" registry <xref target="gana"/>.
          </dd>
          <dt>EXPIRATION</dt>
          <dd>

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