Imports github.com/aws/aws-sdk-go/aws code.cloudfoundry.org/bytefmt github.com/aws/aws-sdk-go/aws/credentials github.com/aws/aws-sdk-go/aws/session github.com/aws/aws-sdk-go/service/s3 Standard library imports crypto/md5 bytes crypto/hmac crypto/sha1 crypto/tls encoding/base64 flag fmt io io/ioutil log math/rand net net/http os sort strings sync sync/atomic time