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Use OpenSSL to generate RSA keys

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Install OpenSSL

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Linux（Ubuntu）

sudo apt-get install openssl

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Windows

Donwload from Official website Downloadsarrow-up-right

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macOS

brew reinstall openssl

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Generation of RSA key pair

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Linux / macOS

openssl genrsa -out pay_rsa_private_key.pem 1024
openssl pkcs8 -topk8 -inform PEM -in pay_rsa_private_key.pem  -outform PEM -nocrypt
openssl rsa -in pay_rsa_private_key.pem -pubout -out  pay_rsa_public_key.pem

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Windows in CMD

C:\OpenSSL-Win32\bin>openssl.exe
OpenSSL> genrsa -out pay_rsa_private_key.pem 1024
OpenSSL> pkcs8 -topk8 -inform PEM -in pay_rsa_private_key.pem  -outform PEM -nocrypt
OpenSSL> rsa -in pay_rsa_private_key.pem -pubout -out  pay_rsa_public_key.pem
OpenSSL> exit

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Method

The RSA key pair generation will result in two files: pay_rsa_private_key.pem (private key) and pay_rsa_public_key.pem (public key) in the current directory. The former is to be kept secure by the merchant for signing critical interfaces, while the latter's uncommented content should be uploaded via the interface. EchoooPay's backend portal will then verify the interface using the provided public key.

PKCS8 Formatted Annotated Private Key File

Public Key

Information for the Uploaded Public Key File

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