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`Scheme.DeriveKeyPair` panics if the length of the seed is different from `Scheme.SeedSize`. However, this is too strict: there are use-cases for passing a seed larger than the hash size, for instance…
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- Program: dnsdist
- Issue type: Feature request
### Short description
Oblivious DOH is looking more like it will be implemented in various operating systems and browsers. The proxy is outsid…
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Hi folks! Thanks for a really useful implementation.
I recently wrote a [brief specification](https://datatracker.ietf.org/doc/draft-wahby-cfrg-hpke-kem-secp256k1/01/) for HPKE using DHKEM over sec…
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MACs are currently computed using HKDF extract. That works, but only because all HPKE ciphersuites use HKDF as their key derivation function and MLS hard-codes HMAC as the MAC to use. The crypto provi…
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Full-featured collectors, which hold an authentication credential for divviup-api, may want to fetch a list of DAP tasks filtered by HPKE config/collector credential identifier. This would allow them …
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# Description
### What is this talk about? Give us as many details as possible.
Level: **Beginner**
Payjoin is a simple, flexible, and powerful protocol for a sender and receiver to collaborat…
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As an extension to the t_cose library I have added support for encryption to COSE with the HPKE-based key exchange. You can find the code here: https://github.com/laurencelundblade/t_cose/pull/46
T…
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The spec for HPKE states that the private key size (Nsk) for DHKEM(P-521, HKDF-SHA512) is 66 bytes:
https://datatracker.ietf.org/doc/html/rfc9180#name-key-encapsulation-mechanism
The private key '…
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It needs to be computed consistently by both sender and receiver.
If related protected header parameters are present, it must be computed and used.
If no relevant protected header parameters are p…
OR13 updated
7 months ago
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From clang-tidy:
```
/home/tzn/.cache/bazel/_bazel_tzn/dab993785bc8bd52220ddfe5340ed840/sandbox/linux-sandbox/5480/execroot/oak/cc/crypto/hpke/sender_context.h:33:7: error: class 'SenderContext' d…