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A few revisions to PFS design.

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This commit is contained in:
Adam Ierymenko 2015-05-15 09:04:39 -07:00
parent d0e0f5dd12
commit 0bdd56ebd6
1 changed files with 6 additions and 11 deletions
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17
node/Packet.hpp
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@ -777,9 +777,7 @@ public:
* <[1] symmetric cipher ID>
* <[1] public key type ID>
* <[2] public key length in bytes>
* <[2] identity signature length in bytes (0 for none)>
* <[...] public key>
* <[...] signature of sender's ZT identity with public key>
* [... additional records may follow up to max packet length ...]
*
* This message is sent to negotiate an ephemeral key. If the recipient's
@ -789,13 +787,6 @@ public:
* PFS key IDs are random and must not be zero, since zero indicates that
* the sender does not have an ephemeral key on file for the recipient.
*
* For each public key, the sender may sign its ZeroTier identity (public
* portion only) using the associated digital signature algorithm. This
* permits the extension of FIPS-compliant cryptographic algorithms to
* cover verification of the identity for full FIPS compliant mode. For
* non-FIPS mode, this is optional. If no signature is included the
* signature length field must be zero.
*
* One or more records may be sent. If multiple records are present,
* the first record with common symmetric cipher, public key type,
* and relevant flags must be used.
@ -808,8 +799,8 @@ public:
* 0x02 - AES256-GCM combined crypto and authentication
*
* Public key types:
* 0x01 - Curve25519 ECDH with SHA-512 KDF, Ed25519 signatures
* 0x02 - NIST P-256 ECDH with SHA-512 KDF, ECDSA signatures
* 0x01 - Curve25519 ECDH with SHA-512 KDF
* 0x02 - NIST P-256 ECDH with SHA-512 KDF
*
* Once both peers have a PFS key, they will attempt to send PFS key
* encrypted messages with the PFS flag set using the negotiated
@ -818,6 +809,10 @@ public:
* Note: most of these features such as FIPS and other cipher suites are
* not implemented yet. They're just specified in the protocol for future
* use to support e.g. FIPS requirements.
*
* OK response payload:
* <[8] PFS key set ID of received key set>
* <[1] index in record list of chosen key record>
*/
VERB_SET_EPHEMERAL_KEY = 15
};