29 lines
862 B
Go
29 lines
862 B
Go
package protocol
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// ChangeCipherSpec protocol exists to signal transitions in
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// ciphering strategies. The protocol consists of a single message,
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// which is encrypted and compressed under the current (not the pending)
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// connection state. The message consists of a single byte of value 1.
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// https://tools.ietf.org/html/rfc5246#section-7.1
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type ChangeCipherSpec struct {
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}
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// ContentType returns the ContentType of this content
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func (c ChangeCipherSpec) ContentType() ContentType {
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return ContentTypeChangeCipherSpec
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}
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// Marshal encodes the ChangeCipherSpec to binary
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func (c *ChangeCipherSpec) Marshal() ([]byte, error) {
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return []byte{0x01}, nil
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}
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// Unmarshal populates the ChangeCipherSpec from binary
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func (c *ChangeCipherSpec) Unmarshal(data []byte) error {
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if len(data) == 1 && data[0] == 0x01 {
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return nil
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}
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return errInvalidCipherSpec
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}
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