com.braintreegateway.encryption.Braintree Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of encryption Show documentation

Client side encryption for Braintree integrations on Android.

There is a newer version: 2.1.0

package com.braintreegateway.encryption;

public class Braintree {
    private final String publicKey;

    public Braintree(String publicKey) {
        this.publicKey = publicKey;
    }

    public String getPublicKey() {
        return publicKey;
    }

    public String encrypt(String payload) throws BraintreeEncryptionException {
        byte[] aesKey = Random.secureRandomBytes(Aes.KEY_LENGTH);
        byte[] aesIV = Random.secureRandomBytes(Aes.IV_LENGTH);
        String encryptedPayload = Aes.encrypt(payload, aesKey, aesIV);
        String encryptedAesKey = Rsa.encrypt(aesKey, publicKey);
        return getPrefix() + encryptedAesKey + "$" + encryptedPayload;
    }

    private String getPrefix() {
        return "$bt3|android_" + BuildConfig.VERSION_NAME.replace(".", "_") + "$";
    }
}