Imports github.com/aws/aws-sdk-go/aws github.com/aws/aws-sdk-go/aws/credentials github.com/aws/aws-sdk-go/aws/session github.com/aws/aws-sdk-go/service/s3/s3manager github.com/aws/aws-sdk-go/service/s3 Standard library imports crypto/cipher crypto/aes crypto/rand encoding/hex io