Google Pay Decryptor Tool

Tired of looking for information about cryptography and decrypting google pay token in Golang? Then this library will definitely make your work easier. I can’t say that the solution is ideal, so I accept any suggestions and will be glad to contributors.

Getting Started

Library was written in base of Tink library, which is official from Google.

Prerequisites

Install by one step

go get -v github.com/m1crogravity/google-pay-decryptor

Types

There are two main types in library:

1. Token - encrypted payload from GooglePay

var input types.Token

2. Decrypted - decrypted payload

var output types.Decrypted

Demo

1. Load root signing keys, private key and merchantID as recipientId while launching app

decrypt.Init(rootKeys, recipientId, privateKey)

Keys will be initialized and stored to environment variables.

If you want to renew keys, just restart app.

2. Decrypt payload

decryptor, err = decrypt.NewGooglePayDecryptor()
if err != nil {
    return types.Decrypted{}, err
}

output, err = decrypt.Decrypt(input) // input is payload in types.Token
if err != nil {
    return types.Decrypted{}, err
}

Running the tests

To run tests

go test -v ./...

To see coverage of tests

go test -cover -coverprofile=c.out

To visualize coverage by tests

go tool cover -html=c.out -o coverage.html

Contributing

Please read CONTRIBUTING.md for details on our code of conduct, and the process for submitting pull requests to us.

Versioning

We use SemVer for versioning. For the versions available, see the tags on this repository.

Authors

• Zhuman Rakhat - Initial work - Google Pay Decryptor

See also the list of contributors who participated in this project.

License

This project is licensed under the MIT License - see the LICENSE.md file for details

Acknowledgments

• If you find an error, feel free to open an issue and we will figure it out
• Let's make the world easier and improve the design and implementations in Go