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It's unclear to me why sha2 is used here: https://github.com/mozilla/rust-ece/blob/master/src/crypto_backends/openssl.rs#L20.
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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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Both the hash function (e.g., BLAKE2b) and the KDF (e.g., HKDF) in use are things that should be defined as part of the parameters of the cryptosystem. That way we can always be sure what is the corre…
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In current-development-phase.md, there are the following missing dependencies with an unlinked TODO comment:
- [x] cryptographic hash function
- [ ] CSPRNG
- [x] AEAD (See also #27, #70)
- [x] H…
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The "Derive Bits" operation of the HKDF algorithm specifies a step that computes the `extractKey` variable, but this variable is never used.
https://w3c.github.io/webcrypto/#hkdf-operations
![Bi…
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Hi,
# What
I am trying to modify the encrypt, decrypt and keygen modules to support SECP256K1 and AES-GCM 256, but the decryption fails.
# Why
Since most of the publicly available implementati…
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### Answers checklist.
- [X] I have read the documentation [ESP-IDF Programming Guide](https://docs.espressif.com/projects/esp-idf/en/latest/) and the issue is not addressed there.
- [X] I have updat…
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Background: https://github.com/namecoin/electrum-nmc/issues/237
Namecoin wallets (Namecoin Core and Electrum-NMC) currently use a random salt for name registrations. While this is relatively easy …
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I'm pretty confident in the code so far, but obviously, as a cryptographic library it needs more eyeballs.
Two notable pieces of code that could be a concern:
- [HKDF usage](https://github.com/narfbg…
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Hi.
I'm trying to add support for ESNIExtension in tlslite-ng. I'm getting the information here: https://tools.ietf.org/html/draft-ietf-tls-esni-02
At the moment I can get the information of the dns…