Imports github.com/aws/aws-sdk-go/aws github.com/aws/aws-sdk-go/aws/credentials/stscreds github.com/aws/aws-sdk-go/aws/session github.com/aws/aws-sdk-go/service/kms golang.org/x/crypto/hkdf Standard library imports bytes crypto/aes crypto/cipher crypto/sha256 crypto/sha512 encoding/binary errors hash io log strings