RSAUtils

Path

com.roma.apic.livedata.common.v1.RSAUtils

Description

This class is used to provide the RSA encryption and decryption methods.

Example

Use the following Java code to generate a public key and a private key:

import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.util.Base64;

public class Main {

    public static void main(String[] args) {
        try {
            KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
            keyPairGenerator.initialize(1024);
            KeyPair keyPair = keyPairGenerator.generateKeyPair();
            PublicKey publicKey = keyPair.getPublic();
            System.out.println("publicKey:" + new String(Base64.getEncoder().encode(publicKey.getEncoded())));

            PrivateKey privateKey = keyPair.getPrivate();
            System.out.println("privateKey:" + new String(Base64.getEncoder().encode(privateKey.getEncoded())));
        } catch (Exception e) {
            e.printStackTrace();
            return;
        }
    }
}

Add the public key and private key to the following code:

importClass(com.roma.apic.livedata.common.v1.RSAUtils);
importClass(com.roma.apic.livedata.common.v1.Base64Utils);

function execute(data) {
    var publicKeyString = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDd4CRRppmYVlFl3dX4iVGN+2Twy5gLeEPRbvhOko/xFipGF7XV0weTp4wCakgdnm+DR4gBBrQtfAuKwYIBPIr+C1FI5sKYA3NxazDWUcXR3xlPM5D0DWjacjcMjnaj2v21WZxGpwHZHQ9TLd4OBBq3fva1r/cE8s1Lji5QeFiklwIDAQAB";

    var privateKeyString = "**********";

    var publicKey = RSAUtils.getPublicKey(publicKeyString)
    var privateKey = RSAUtils.getPrivateKey(privateKeyString)

    var origin = "hello rsa"
    var encrypted = RSAUtils.encrypt(Base64Utils.encode(origin), publicKey)

    var decrypted = RSAUtils.decrypt(encrypted, privateKey)
    return decrypted
}

Constructor Details

public RSAUtils()

Constructs an RSAUtils class without parameters.

Method List

Method Details

• public static byte[] decodeBase64(String base64)

  Decode a Base64 character string to binary data.

  Input Parameter

  base64 indicates the data encoded using Base64.

  Returns

  Data decoded by using Base64

• public static byte[] decrypt(java.security.PrivateKey privateKey, byte[] encryptData)

  Decrypt data using the RSA algorithm.

  Input Parameter

  • privateKey indicates a private key.
  • encryptData indicates the data to be decrypted.

  Returns

  Decrypted data.

• public static String decrypt(String source, java.security.interfaces.RSAPrivateKey privateKey)

  Decrypt data using the RSA algorithm.

  Input Parameter

  • source indicates the Base64 code of the data to be decrypted.
  • privateKey indicates a private key.

  Returns

  Decrypted data.

• public static String decrypt(String source, java.security.interfaces.RSAPrivateKey privateKey, Map<String,String>config)

  Decrypt data using the RSA algorithm.

  Input Parameter

  • source indicates the Base64 code of the data to be decrypted.
  • privateKey indicates a private key.
  • config indicates the decryption configuration. The options are as follows:

    transformation: specifies the decryption algorithm/mode/padding, for example, RSA/ECB/OAEPPadding. For details, see the parameter description.

  Returns

  Decrypted data.

• public static String decrypt(byte[] source, java.security.interfaces.RSAPrivateKey privateKey)

  Decrypt data using the RSA algorithm.

  Input Parameter

  • source indicates data to be decrypted.
  • privateKey indicates a private key.

  Returns

  Decrypted data.

• public static String decrypt(byte[] source, java.security.interfaces.RSAPrivateKey privateKey, Map<String,String>config)

  Decrypt data using the RSA algorithm.

  Input Parameter

  • source indicates data to be decrypted.
  • privateKey indicates a private key.
  • config indicates the decryption configuration. The options are as follows:

    transformation: specifies the decryption algorithm/mode/padding, for example, RSA/ECB/OAEPPadding. For details, see the parameter description.

  Returns

  Decrypted data.

• public static String encodeBase64(byte[] bytes)

  Encode binary data to a Base64 character string.

  Input Parameter

  bytes indicates data to be encoded.

  Returns

  Base64 encoding.

• public static byte[] encrypt(java.security.PublicKey publicKey, byte[] source)

  Encrypt data using the RSA algorithm.

  Input Parameter

  • publicKey indicates a public key.
  • source indicates the content to be encrypted.

  Returns

  Encrypted data content.

• public static String encrypt(String source, java.security.PublicKey publicKey)

  Encrypt data using the RSA algorithm.

  Input Parameter

  • source indicates the Base64 code of the data to be encrypted.
  • publicKey indicates a public key.

  Returns

  Base64 code of the encrypted data content.

• public static String encrypt(String source, java.security.PublicKey publicKey, Map<String, String> config)

  Encrypt data using the RSA algorithm.

  Input Parameter

  • source indicates the Base64 code of the data to be encrypted.
  • publicKey indicates a public key.
  • config indicates the encryption option. The options are as follows:

    transformation: specifies the encryption algorithm/mode/padding, for example, RSA/ECB/OAEPPadding. For details, see the parameter description.

• public static String encrypt(byte[] source, java.security.PublicKey publicKey)

  Encrypt data using the RSA algorithm.

  Input Parameter

  • source indicates the content to be encrypted.
  • publicKey indicates a public key.

  Returns

  Base64 code of the encrypted data content.

• public static String encrypt(byte[] source, java.security.PublicKey publicKey, Map<String, String> config)

  Encrypt data using the RSA algorithm.

  Input Parameter

  • source indicates the content to be encrypted.
  • publicKey indicates a public key.
  • config indicates the encryption option. The options are as follows:

    transformation: specifies the encryption algorithm/mode/padding, for example, RSA/ECB/OAEPPadding. For details, see the parameter description.

  Returns

  Base64 code of the encrypted data content.

• public static java.security.interfaces.RSAPrivateKey getPrivateKey(byte[] privateKeyByte)

  Create an RSA private key by using the private key of the x509 format.

  Input Parameter

  privateKeyByte indicates the private key encoded in x509 format

  Returns

  Private key.

• public static java.security.interfaces.RSAPrivateKey getPrivateKey(String privateKeyByte)

  Create an RSA private key by using the private key of the x509 format.

  Input Parameter

  privateKeyByte indicates the private key encoded in x509 format

  Returns

  Private key.

• public static java.security.interfaces.RSAPrivateKey getPrivateKey(String modulus, String exponent)

  Create an RSA private key by using the modulus and exponent.

  Input Parameter

  • modulus indicates the modulus required for generating a private key.
  • exponent indicates the exponent required for generating a private key.

  Returns

  RSA private key.

• public static java.security.interfaces.RSAPublicKey getPublicKey(byte[] publicKeyByte)

  Create an RSA public key by using a public key encoded in x509 format.

  Input Parameter

  publicKeyByte indicates the public key encoded in x509 format.

  Returns

  Public key.

• public static java.security.PublicKey getPublicKey(String modulus, String exponent)

  Create an RSA public key by using the modulus and exponent.

  Input Parameter

  • modulus indicates the modulus required for generating a public key.
  • exponent indicates the exponent required for generating a public key.

  Returns

  RSA public key.