Are transactions stored in real time?
A: Unlike traditional transactional databases, transactions are asynchronous in blockchains. Up to 25,000 notary transactions can be made every second.
Is it synchronous with relational databases?
A: It subscribes to block notifications and pulls notifications on demand from the blockchain. Or it uses the business view system.
Are public and private keys legally recognized?
A: The certificate is a legally-recognized certificate that Alipay uses to access a third party.
What method is used to protect data privacy?
A: To protect notary data privacy, data is encrypted and only authorized users can decrypt data.
The client has been initialized successfully but can not comminicate with the blockchain, I also found the error log below, may I ask why is this happening?
connect to /220.127.116.11:8080 success!
old is not null, async resend subscribe events
A: Usually this happens because of mistakes in the client configurations, please make sure you use the right private key file, password and certificate file.
How can I create private keys and certificate requests in Windows?
A: In Windows, use the OpenSSL tool to create private keys and certificate requests.
We recommend that you go to https://slproweb.com/products/Win32OpenSSL.html and download OpenSSL ver1.0.2o instead of OpenSSL ver1.1.0, which has a known bug when extracting private keys.
The following are two backup links:
1) 1) OpenSSL (32-bit): http://baas-public.oss-cn-shanghai.aliyuncs.com/Win32OpenSSL-1_0_2o.exe
2) OpenSSL (64-bit): http://baas-public.oss-cn-shanghai.aliyuncs.com/Win64OpenSSL-1_0_2o.exe
Use OpenSSL to create private keys and certificate requests by:In cmd, go to the path of Openssl.exe:
Configure the OpenSSL configuration file under the current path.
Generate private keys and corresponding certificate requests under the current path
openssl req -newkey rsa:2048 -keyout key_pkcs10.pem -out csr.pem
When running this command, you will be prompted to enter the following information:
Country name (2-letter code): Enter a two-letter ISO country code. For China, enter CN.
State or province name (full name): Enter a province, for example, Shanghai.
Locality name (for example, city): Enter a city, for example, Shanghai.
Organization name (for example, company): Enter an organization, for example, Pinyin of a company name.
Organizational unit name (for example, section): For example, IT Dept.
Common name (for example, your website domain name): Enter an identity used for SSL encryption.
Email address: email address (optional)
Challenge password: (optional)
Optional company name: (optional)
Convert private keys from pkcs10 to pkcs8
openssl pkcs8 -in key_pkcs10.pem -inform PEM -out pkcs8.pem -outform PEM -topk8
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