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implement source passphrases#269

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redshiftzero wants to merge 3 commits into
mainfrom
source-passphrase
Open

implement source passphrases#269
redshiftzero wants to merge 3 commits into
mainfrom
source-passphrase

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Closes #82
Closes #192

As advertised in the spec change in #240

@redshiftzero redshiftzero requested review from a team as code owners May 28, 2026 16:10
// derivation requires wide (64 byte) input. We currently use X25519,
// which takes a 32 byte seed, so we derive 32 bytes for now.
//
// TODO: Switch to 64 bytes when migrating the fetch key to ristretto255.

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this will be closed after #188

@redshiftzero redshiftzero moved this to Ready For Review in SecureDrop May 28, 2026
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specify KDF and PBKDF for use with source key derivation source passphrases with checksums

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