lib kms.js

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  "use strict";
var AWS = require('./leo-aws');
module.exports = function(configuration) {
  return {
    decryptString: function(encryptedString, done) {
      let kms = new AWS.KMS({
        endpoint: process.env.AWS_KMS_ENDPOINT || undefined,
        region: configuration.aws.region,
        credentials: configuration.credentials
      });
      kms.decrypt({
        CiphertextBlob: Buffer.from(encryptedString, 'base64')
      }, function(err, data) {
        if (err) {
          return done(err);
        } else {
          done(null, data.Plaintext.toString('ascii'));
        }
      });
    },
    encryptString: function(value, done) {
      let kms = new AWS.KMS({
        region: configuration.aws.region,
        credentials: configuration.credentials
      });
      kms.encrypt(value, function(err, data) {
        if (err) {
          return done(err);
        } else {
          done(null, data.CiphertextBlob.toString("base64"));
        }
      });
    }
  }
};