feat(sdk-core): extract isMpcV2Keycard and signEddsaMpcV2RecoveryTx into shared utils - #9449
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Ticket: WCI-1276 Add EddsaSigningMaterial discriminated union, isMpcV2Keycard, and signEddsaMpcV2RecoveryTx to eddsaMPCv2.ts. Replace duplicated inline implementations in abstract-substrate and sdk-coin-sol with these shared helpers. sjcl fallback retained for optional bitgo parameter. Export all new symbols from sdk-core package root. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Ticket: WCI-1276 Replace inline isMpcV2Keycard and addRecoverySignature MPCv2 block in sdk-coin-ton with shared helpers from sdk-core. Removes TonSigningMaterial local type in favour of EddsaSigningMaterial. Drop-in — no behaviour change, no test modifications. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
EddsaSigningMaterialdiscriminated union (v1 | v2) toeddsaMPCv2.tsisMpcV2Keycard(userKey, walletPassphrase, bitgo?)— detects v1 (JSON/SJCL) vs v2 (CBOR) keycard, returns typed signing material; sjcl fallback retained for optionalbitgosignEddsaMpcV2RecoveryTx(params)— full MPCv2 recovery signing: decrypt key shares → validatecommonKeyChain→ MPS DSGsdk-corepackage rootabstract-substrateandsdk-coin-solwith the shared helpers — drop-in, no behaviour change, no test modificationsContext
WCI-1276 —
isMpcV2KeycardandsignEddsaMpcV2RecoveryTxwere duplicated inline across coin modules (Substrate/DOT/POLYX, SOL). This PR extracts them intosdk-coreand replaces all call sites.This branch is based on
feat/abstract-substrate/WCI-1239and should be merged after that branch lands.Modules changed
@bitgo/sdk-core@bitgo/abstract-substrateisMpcV2Keycardto shared helper; removes localSubstrateSigningMaterialtype@bitgo/sdk-coin-solisMpcv2SigningMaterialand MPCv2 signing block to shared helpersTest plan
yarn testinmodules/sdk-core— 18 passingyarn buildinmodules/abstract-substrate— cleanyarn testinmodules/sdk-coin-sol— 482 passing (3 pre-existing env-var failures unrelated to this PR)🤖 Generated with Claude Code