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Utilizes NBitcoin for HD wallet operations (BIP32/39/44). Use when: Creating wallets, deriving keys from mnemonics, working with BIP44 derivation paths, or implementing hierarchical deterministic wallet features.
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SOC 職業分類に基づく
Sorcha feature-specific API references, domain models, and cross-cutting architectural patterns that don't belong in service-level skills. Use when: working on or extending any of the features documented below (Participant Identity, Register Invitations, Trust Hardening, Stored Data / file attachments, Validator Roster, Org Key Derivation, Platform Org Topology, Consumer Persona, System Register Genesis, Open Participants / late binding, x-review / credential id-cards, ownership-agnostic submission / derived relationship, Timebound Presentation Lifecycle, Transactional Email / welcome dispatcher, Storage Provider Audit / IStorageRegistrationLog, Atomic Distributed Cache / IAtomicDistributedCache, Validator Mempool Durability / IVerifiedTransactionQueue lease pattern). Also use when you need a concise catalogue of well-known IDs, DID shapes, or the endpoint surface for these features.
Applies multi-algorithm cryptography (ED25519, P-256, RSA-4096) using Sorcha.Cryptography. Use when: implementing signing, verification, encryption, key generation, HD wallets, or address encoding.
Implements W3C Verifiable Credentials 2.0 (SD-JWT VC profile), DID documents, and selective disclosure across Sorcha services and UI. Use when: issuing or verifying VCs, building DID documents, resolving did:sorcha, wiring credential wallet UI, implementing SD-JWT presentations, or working on feature 093 VC security fixes.
Bootstraps the Sorcha network: genesis ceremony, n1.sorcha.dev deployment, validator key import, and platform setup. Use when: Running genesis ceremony, resetting n1, deploying to n1.sorcha.dev, importing validator keys, bootstrapping the platform, starting the sorcha-dev network, or troubleshooting genesis bootstrap failures.
Configures MongoDB document storage and query operations for Sorcha's distributed ledger Use when: implementing document storage, querying collections, creating indexes, or working with Register/Transaction/Docket data
Build, sign, and ship the Sorcha mobile apps (Capacitor + fastlane on a Mac build node, driven from the Windows orchestrator). Use when triggering or debugging iOS/Android builds, running a fastlane lane, dispatching the build workflow, watching a build, registering or fixing the self-hosted runner, deriving app versions, onboarding the Mac toolchain, mapping where signing secrets live, or configuring native passkeys / Associated Domains (AASA, assetlinks, App-ID capability, relying-party / Fido2 ServerDomain, secure-origin server.url). Covers the Sorcha Wallet PWA (app.sorcha.wallet).
| name | nbitcoin |
| description | Utilizes NBitcoin for HD wallet operations (BIP32/39/44). Use when: Creating wallets, deriving keys from mnemonics, working with BIP44 derivation paths, or implementing hierarchical deterministic wallet features. |
| allowed-tools | Read, Edit, Write, Glob, Grep, Bash, mcp__context7__resolve-library-id, mcp__context7__query-docs |
NBitcoin provides HD wallet operations in Sorcha through the Sorcha.Wallet.Core project. The codebase wraps NBitcoin types in domain value objects (Mnemonic, DerivationPath) and uses them exclusively for BIP32/39/44 key derivation—NOT for transaction building. Actual signing uses Sorcha.Cryptography (ED25519, P-256, RSA-4096).
// src/Core/Sorcha.Wallet.Core/Domain/ValueObjects/Mnemonic.cs
var mnemonic = Mnemonic.Generate(12); // or 24 for higher security
// NEVER log mnemonic.Phrase - use mnemonic.ToString() which returns "Mnemonic(12 words)"
// src/Core/Sorcha.Wallet.Core/Services/Implementation/KeyManagementService.cs:62-111
var masterKey = await _keyManagement.DeriveMasterKeyAsync(mnemonic, passphrase);
var path = DerivationPath.CreateBip44(coinType: 0, account: 0, change: 0, addressIndex: 0);
var (privateKey, publicKey) = await _keyManagement.DeriveKeyAtPathAsync(masterKey, path, "ED25519");
if (Mnemonic.IsValid(userProvidedPhrase))
{
var mnemonic = new Mnemonic(userProvidedPhrase);
}
| Concept | Usage | Example |
|---|---|---|
Mnemonic | Wraps NBitcoin.Mnemonic | Mnemonic.Generate(12) |
DerivationPath | Wraps NBitcoin.KeyPath | DerivationPath.CreateBip44(0, 0, 0, 0) |
ExtKey | Extended private key | ExtKey.CreateFromSeed(masterKey) |
| System Paths | Sorcha-specific aliases | "sorcha:register-attestation" → "m/44'/0'/0'/0/100" |
| Gap Limit | BIP44: max 20 unused addresses | Enforced in WalletManager.cs:493-508 |
When: User creates a new wallet.
// 1. Generate mnemonic (NEVER store on server)
var mnemonic = Mnemonic.Generate(12);
// 2. Derive master key with optional passphrase
var masterKey = await _keyManagement.DeriveMasterKeyAsync(mnemonic, passphrase);
// 3. Derive first key at m/44'/0'/0'/0/0
var path = DerivationPath.CreateBip44(0, 0, 0, 0);
var (privateKey, publicKey) = await _keyManagement.DeriveKeyAtPathAsync(masterKey, path, algorithm);
// 4. Encrypt private key before storage
var (encryptedKey, keyId) = await _keyManagement.EncryptPrivateKeyAsync(privateKey, string.Empty);
When: Using Sorcha-specific derivation purposes.
// src/Core/Sorcha.Wallet.Core/Constants/SorchaDerivationPaths.cs
var resolvedPath = SorchaDerivationPaths.IsSystemPath(derivationPath)
? SorchaDerivationPaths.ResolvePath(derivationPath) // "sorcha:register-attestation" → "m/44'/0'/0'/0/100"
: derivationPath;
Fetch latest NBitcoin documentation with Context7.
How to use Context7:
mcp__context7__resolve-library-id to search for "nbitcoin"mcp__context7__query-docs using the resolved library IDLibrary ID: /metacosa/nbitcoin
Recommended Queries: