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https://github.com/saymrwulf/swisspost-evoting-go-poc.git
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saymrwulf
dbf00153f8
Setup now generates each voter's return-code card by collecting shares from all four CCs over the bus (the GenEncLongCodeShares exchange) and distributes cards and the mapping table over CONFIDENTIAL channels. - codes.go: deriveReturnCodeKey is the SINGLE key-derivation function used by a CC both when contributing to card assembly and (later) at vote-time extraction — structurally preventing the setup/extraction derivation mismatch (F1). Each CC computes its choice/confirm shares from its private return-code secret; only the shares (validated as G_q members on decode) cross the bus. - RunCards assembles cards, registers mapping-table entries, and delivers cards to voters + the mapping table to the server via sendConfidential (X25519 ECDH session key + AES-256-GCM, then Ed25519-signed) — exercising the secure channel in the ceremony, not just in tests. - returncodes: MappingTable Export/ImportMappingTable for transport. Test confirms every voter receives its card confidentially with the right code count and the server receives the full mapping table + public election keys. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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| elgamal | ||
| hash | ||
| kdf | ||
| math | ||
| mixnet | ||
| party | ||
| protocol | ||
| returncodes | ||
| serialize | ||
| symmetric | ||
| transport | ||
| transportsec | ||
| verify | ||
| zkp | ||