随笔分类 -  blockchain

执行deployChaincode.sh时 fail to normalize chaincode path: fail to determine module root: exec: "go" executable file not found in $PATH
摘要：Sudo的环境变量问题 export PATH=$PATH:/usr/bin https://askubuntu.com/questions/338726/cant-execute-terminal-commands-the-command-sudo-is-available-in-usr-bin- 阅读全文
posted @ 2022-05-14 12:02 铸剑非攻 阅读(55) 评论(0) 推荐(0)
Hyperledger Fabric - empty JSON chaincode parameters must contain the following keys: 'Args' or 'Function' and 'Args'
摘要：可能换行符号异样导致无法识别后面的-c命令行，退格删除重新输入即可 阅读全文
posted @ 2022-05-14 11:52 铸剑非攻 阅读(85) 评论(0) 推荐(0)
hyperledger性能测试工具tape
摘要：1. 计算latency, transactions per second (TPS)等: https://github.com/Hyperledger-TWGC/tape/issues/146 2. ProposalResponsePayloads from Peers do not match问 阅读全文
posted @ 2022-05-11 22:21 铸剑非攻 阅读(553) 评论(0) 推荐(0)
JSON Unmarshal for xxx invalid character '{' after top-level value
摘要：reset the bytes.Buffer https://stackoverflow.com/questions/70302406/failed-unmarshal-for-xxx-invalid-character-after-top-level-value 阅读全文
posted @ 2022-05-04 23:13 铸剑非攻 阅读(342) 评论(0) 推荐(0)
Golang json invalid character looking for beginning of value
摘要：从blockchain上拿下来的数据（byte）用自定义的decodeToXXXStruct解析 和json.Unmarshal交替尝试使用 func DecodeToCostInfo(s []byte) CostInfo { p := CostInfo{} dec := gob.NewDecode 阅读全文
posted @ 2022-05-04 23:12 铸剑非攻 阅读(469) 评论(0) 推荐(0)
Golang json Unmarshal "unexpected end of JSON input"
摘要：result of a syntax error in the JSON input (likely a missing ", }, or ]). https://stackoverflow.com/questions/27994327/golang-json-unmarshal-unexpecte 阅读全文
posted @ 2022-05-04 22:22 铸剑非攻 阅读(394) 评论(0) 推荐(0)
json.unmarshal() 返回nil空值
摘要：https://stackoverflow.com/questions/28264343/json-unmarshal-return-nil 阅读全文
posted @ 2022-05-04 22:19 铸剑非攻 阅读(137) 评论(0) 推荐(0)
go string转byte array乱码
摘要： 阅读全文
posted @ 2022-05-02 23:37 铸剑非攻 阅读(80) 评论(0) 推荐(0)
Go module 导入本地包
摘要：https://zhuanlan.zhihu.com/p/109828249 阅读全文
posted @ 2022-05-02 23:36 铸剑非攻 阅读(16) 评论(0) 推荐(0)
Ubuntu安装charm-crypto
摘要：https://itcn.blog/p/1648461309475448.html 阅读全文
posted @ 2022-05-02 23:27 铸剑非攻 阅读(63) 评论(0) 推荐(0)
Ubuntu安装Openssl
摘要：sudo apt-get install openssl sudo apt-get install libssl-dev https://www.jianshu.com/p/e2f57b224c84 阅读全文
posted @ 2022-05-02 23:26 铸剑非攻 阅读(710) 评论(0) 推荐(0)
ElGamal encryption and EIGamal-based proxy re-encryption
摘要：https://asecuritysite.com/elgamal/go_elgamal https://www.youtube.com/watch?v=DRgeuJl86uY&ab_channel=BillBuchananOBE https://www.youtube.com/watch?v=Ex 阅读全文
posted @ 2022-04-29 20:56 铸剑非攻 阅读(40) 评论(0) 推荐(0)
Go struct和byte相互转换
摘要：package main import ( "bytes" "compress/gzip" "encoding/gob" "fmt" "io/ioutil" "log" "os") type Person struct { Name string Address Address} type Addr 阅读全文
posted @ 2022-04-27 23:35 铸剑非攻 阅读(542) 评论(0) 推荐(0)
Hyperledger Fabric: Error: could not assemble transaction: ProposalResponsePayloads do not match
摘要：自己这里的情况是在chaincode里用了加密，AES RSA等有随机数，每次对同一message加密结果会不一样（为了更加安全）。而hyperledger fabric里每个peer会执行一下chaincode，导致得到的结果不同，不deterministic，就导致proposal respon 阅读全文
posted @ 2022-04-27 23:23 铸剑非攻 阅读(282) 评论(0) 推荐(0)
Go错误：json unmarshal invalid character '\n' in string literal
摘要：加一个\ https://stackoverflow.com/questions/38977555/error-embedding-n-into-a-string-literal https://stackoverflow.com/questions/56522226/golang-json-unm 阅读全文
posted @ 2022-04-27 23:18 铸剑非攻 阅读(2060) 评论(0) 推荐(0)
Hyperledger Fabric chaincode GetState返回空值
摘要：可能原因： 1. struct的字段首字母没有大写。用json转换的话首字母都要大写。 2. 不同smart contract function分布在了不同文件夹。一个smart contract对应一个database，不同function要都写在同一个go文件里。 https://stackov 阅读全文
posted @ 2022-04-27 23:16 铸剑非攻 阅读(71) 评论(0) 推荐(0)
Hyperledger Fabric智能合约执行错误 error in simulation: failed to execute transaction chaincode stream terminated
摘要：Error: endorsement failure during invoke. response: status:500 message:"error in simulation: failed to execute transaction 23051bda224b17ebd368c152415 阅读全文
posted @ 2022-04-25 23:21 铸剑非攻 阅读(946) 评论(0) 推荐(0)
HyperLedger Fabric XXX command not found 比如configtxlator: command not found
摘要：原因：没有添加fabric的环境变量 方法1： 添加环境变量 export PATH=$HOME/hf/fabric-samples/bin:$PATH 测试是否添加成功：fabric-ca-client version https://www.cnblogs.com/chaichai/p/1175 阅读全文
posted @ 2021-11-02 10:59 铸剑非攻 阅读(351) 评论(0) 推荐(0)
HyperLedger Fabric 运行docker exec -it cli bash的时候 Error: No such container: cli
摘要：先运行网络（比如sudo ./byfn.sh up）再运行docker exec -it cli bash 阅读全文
posted @ 2021-11-01 19:42 铸剑非攻 阅读(422) 评论(0) 推荐(0)