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Diffstat (limited to 'spec/rend-spec/hsdesc-encrypt.md')
| -rw-r--r-- | spec/rend-spec/hsdesc-encrypt.md | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/spec/rend-spec/hsdesc-encrypt.md b/spec/rend-spec/hsdesc-encrypt.md index 3e91172..3d2117e 100644 --- a/spec/rend-spec/hsdesc-encrypt.md +++ b/spec/rend-spec/hsdesc-encrypt.md @@ -252,21 +252,25 @@ list of intro points etc. The plaintext has the following format: ``` ```text - "pow-params" SP type SP seed-b64 SP suggested-effort + "pow-params" SP scheme SP seed-b64 SP suggested-effort SP expiration-time NL - [At most once per "type"] - If present, this line provides parameters for an optional proof-of-work client puzzle. A client that supports an offered scheme can include a corresponding solution in its introduction request to improve priority in the service's processing queue. - Only version 1 is currently defined. - Other versions may have a different format. + Only scheme `v1` is currently defined. + It may appear only once. + + Unknown schemes found in a descriptor must be completely ignored: + future schemes might have a different format (in the parts of the + Item after the "scheme"; this could even include an Object); and + future schemes might allow repetition, and might appear in any order. + Introduced in tor-0.4.8.1-alpha. - type: The type of PoW system used. We call the one specified here "v1". + scheme: The PoW system used. We call the one specified here "v1". seed-b64: A random seed that should be used as the input to the PoW hash function. Should be 32 random bytes encoded in base64 |