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blockchain - Hypelerdger Indy Node - 种子价值

问题描述

我正在使用 indy-sdk 和步骤 3 中的演练演示（https://github.com/hyperledger/indy-sdk/blob/master/docs/getting-started/indy-walkthrough.md#step-3-getting -the-ownership-for-stewards-verinym ) Steward 集的种子值等于“0000000000000000000000000Steward1”。

如果我更改它（或将其留空），我会收到错误消息。此外，在 /tmp/indy/poo1.txn 中没有关于此特定值的信息。

我的问题是我们怎么知道这是正确的值以及我们如何获得它？

标签： blockchainhyperledgerhyperledger-indy

解决方案

为什么它不起作用

000000000000000000000000Steward1是种子（给定默认密钥派生方法）生成 DID Th7MpTaRZVRYnPiabds81Y。您可以使用indy-cli（命令行工具）验证自己

indy> wallet create test key=123
Wallet "test" has been created

indy> wallet open test key=123
Wallet "test" has been opened

wallet(test):indy> did new seed=000000000000000000000000Steward1
Did "Th7MpTaRZVRYnPiabds81Y" has been created with "~7TYfekw4GUagBnBVCqPjiC" verkey

在您使用的网络中，DID 的所有者VsKV7grR1BUE29mG2Fm2kX（即知道其相关私钥或种子的人）具有steward授予对分类帐执行各种操作的权限的角色。因此，如果您修改种子，它将生成不同的 DID，这些 DID 不需要执行本教程中进一步使用的操作（例如在分类帐上写入数据）所需的权限。

从哪里来000000000000000000000000Steward1_

根据您所说的，我认为您正在使用来自 indy-sdk 存储库的预构建 docker 映像，其中运行indy-node实例池，遵循其中的一些说明。 所以简单的答案是配置 for000000000000000000000000Steward1是预先烘焙的。查看用于构建 indy-pool 映像的dockerfile 。注意这些行

RUN awk '{if (index($1, "NETWORK_NAME") != 0) {print("NETWORK_NAME = \"sandbox\"")} else print($0)}' /etc/indy/indy_config.py> /tmp/indy_config.py
RUN mv /tmp/indy_config.py /etc/indy/indy_config.py

让我们看看这些文件中有什么

docker exec indylocalhost cat '/etc/indy/indy_config.py'
# Current network

# Disable stdout logging
enableStdOutLogging = False

# Directory to store ledger.
LEDGER_DIR = '/var/lib/indy'

# Directory to store logs.
LOG_DIR = '/var/log/indy'

# Directory to store keys.
KEYS_DIR = '/var/lib/indy'

# Directory to store genesis transactions files.
GENESIS_DIR = '/var/lib/indy'

# Directory to store backups.
BACKUP_DIR = '/var/lib/indy/backup'

# Directory to store plugins.
PLUGINS_DIR = '/var/lib/indy/plugins'

# Directory to store node info.
NODE_INFO_DIR = '/var/lib/indy'
NETWORK_NAME = 'sandbox'%

这个

# Directory to store genesis transactions files.
GENESIS_DIR = '/var/lib/indy'

看起来像我们正在寻找的东西。让我们看看那里有什么

docker exec indylocalhost ls '/var/lib/indy/sandbox'
data
domain_transactions_genesis
keys
node1_additional_info.json
node1_info.json
node1_version_info.json
node2_additional_info.json
node2_info.json
node2_version_info.json
node3_additional_info.json
node3_info.json
node3_version_info.json
node4_additional_info.json
node4_info.json
node4_version_info.json
pool_transactions_genesis

在区块链中，创世文件通常是您最初用来启动网络的文件，并且可能会用一些数据填充网络。在 hyperledger-indy 的情况下，有 4 个“子账本”，其中包含不同类型的交易：domain、pool、config、audit。domain子分类帐是包含诸如DIDs、凭证模式或凭证定义之类的东西的分类帐。我们正在寻找一个 DID，所以让我们看一下文件域 genesis 文件。

docker exec indylocalhost cat '/var/lib/indy/sandbox/domain_transactions_genesis'
{"reqSignature":{},"txn":{"data":{"dest":"V4SGRU86Z58d6TV7PBUe6f","role":"0","verkey":"~CoRER63DVYnWZtK8uAzNbx"},"metadata":{},"type":"1"},"txnMetadata":{"seqNo":1},"ver":"1"}
{"reqSignature":{},"txn":{"data":{"dest":"Th7MpTaRZVRYnPiabds81Y","role":"2","verkey":"~7TYfekw4GUagBnBVCqPjiC"},"metadata":{"from":"V4SGRU86Z58d6TV7PBUe6f"},"type":"1"},"txnMetadata":{"seqNo":2},"ver":"1"}
{"reqSignature":{},"txn":{"data":{"dest":"EbP4aYNeTHL6q385GuVpRV","role":"2","verkey":"~RHGNtfvkgPEUQzQNtNxLNu"},"metadata":{"from":"V4SGRU86Z58d6TV7PBUe6f"},"type":"1"},"txnMetadata":{"seqNo":3},"ver":"1"}
{"reqSignature":{},"txn":{"data":{"dest":"4cU41vWW82ArfxJxHkzXPG","role":"2","verkey":"~EMoPA6HrpiExVihsVfxD3H"},"metadata":{"from":"V4SGRU86Z58d6TV7PBUe6f"},"type":"1"},"txnMetadata":{"seqNo":4},"ver":"1"}
{"reqSignature":{},"txn":{"data":{"dest":"TWwCRQRZ2ZHMJFn9TzLp7W","role":"2","verkey":"~UhP7K35SAXbix1kCQV4Upx"},"metadata":{"from":"V4SGRU86Z58d6TV7PBUe6f"},"type":"1"},"txnMetadata":{"seqNo":5},"ver":"1"}
{"reqSignature":{},"txn":{"data":{"dest":"7JhapNNMLnwkbiC2ZmPZSE","verkey":"~LgpYPrzkB6awcHMTPZ9TVn"},"metadata":{"from":"V4SGRU86Z58d6TV7PBUe6f"},"type":"1"},"txnMetadata":{"seqNo":6},"ver":"1"}
{"reqSignature":{},"txn":{"data":{"dest":"MEPecrczs4Wh6FA12u519D","verkey":"~A4rMgHYboWYS1DXibCgo9W"},"metadata":{"from":"V4SGRU86Z58d6TV7PBUe6f"},"type":"1"},"txnMetadata":{"seqNo":7},"ver":"1"}
{"reqSignature":{},"txn":{"data":{"dest":"EAPtwgevBpzP8hkj9sxuzy","verkey":"~gmzSzu3feXC6g2djF7ar4"},"metadata":{"from":"V4SGRU86Z58d6TV7PBUe6f"},"type":"1"},"txnMetadata":{"seqNo":8},"ver":"1"}
{"reqSignature":{},"txn":{"data":{"dest":"LuL1HK1sDruwkfm68jrVfD","verkey":"~Nyv9BKUJuvjgMbfbwk8CFD"},"metadata":{"from":"V4SGRU86Z58d6TV7PBUe6f"},"type":"1"},"txnMetadata":{"seqNo":9},"ver":"1"}
{"reqSignature":{},"txn":{"data":{"dest":"462p8mtcX6jpa9ky565YEL","verkey":"~LCgq4hnSvMvB8nKd9vgsTD"},"metadata":{"from":"V4SGRU86Z58d6TV7PBUe6f"},"type":"1"},"txnMetadata":{"seqNo":10},"ver":"1"}

你可以看到 DIDTh7MpTaRZVRYnPiabds81Y是使用 verkey 硬编码在这个分类帐上的~7TYfekw4GUagBnBVCqPjiC，这与我们从 seed 生成的内容相匹配000000000000000000000000Steward1。您还可以看到它被赋予了角色"2"。如果你深入挖掘，你可以找到indy-plenum共识算法。indy 使用的项目，角色 ID2为steward role。

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