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package packet
import (
"io"
)
// Padding type represents a Padding Packet (Tag 21).
// The padding type is represented by the length of its padding.
// see https://datatracker.ietf.org/doc/html/draft-ietf-openpgp-crypto-refresh#name-padding-packet-tag-21
type Padding int
// parse just ignores the padding content.
func (pad Padding) parse(reader io.Reader) error {
_, err := io.CopyN(io.Discard, reader, int64(pad))
return err
}
// SerializePadding writes the padding to writer.
func (pad Padding) SerializePadding(writer io.Writer, rand io.Reader) error {
err := serializeHeader(writer, packetPadding, int(pad))
if err != nil {
return err
}
_, err = io.CopyN(writer, rand, int64(pad))
return err
}
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