Imports github.com/aws/aws-sdk-go/aws github.com/aws/aws-sdk-go/service/dynamodb github.com/aws/aws-sdk-go/service/dynamodb/dynamodbiface github.com/aws/aws-sdk-go/service/kms github.com/aws/aws-sdk-go/service/kms/kmsiface Standard library imports crypto/hmac crypto/sha256 crypto/cipher bufio bytes crypto/aes encoding/base64 encoding/hex encoding/json fmt io/ioutil os strconv strings time