Imports github.com/journeymidnight/aws-sdk-go/aws github.com/journeymidnight/aws-sdk-go/aws/credentials github.com/journeymidnight/aws-sdk-go/aws/session github.com/journeymidnight/aws-sdk-go/service/s3 github.com/journeymidnight/yig/api/datatype Standard library imports bytes crypto/aes crypto/cipher crypto/md5 encoding/base64 encoding/hex errors io io/ioutil net/http os time