mac

package

v1.3.0-rc1 Latest Latest Go to latest Published: Jul 1, 2019 License: Apache-2.0 Imports: 6 Imported by: 0

Details

Package mac provides subtle implementations of the Mac primitive.

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func ValidateHMACParams(hash string, keySize uint32, tagSize uint32) error

ValidateHMACParams validates parameters of HMAC constructor.

type HMAC struct {
	HashFunc func() hash.Hash
	Key      []byte
	TagSize  uint32
}

HMAC implementation of interface tink.MAC

func NewHMAC(hashAlg string, key []byte, tagSize uint32) (*HMAC, error)

NewHMAC creates a new instance of HMAC with the specified key and tag size.

func (h *HMAC) ComputeMAC(data []byte) ([]byte, error)

ComputeMAC computes message authentication code (MAC) for the given data.

func (h *HMAC) VerifyMAC(mac []byte, data []byte) error

VerifyMAC verifies whether the given MAC is a correct authentication code (MAC) the given data.