crypto

package

v0.4.1 Latest Latest Go to latest Published: Sep 3, 2023 License: Apache-2.0 Imports: 6 Imported by: 0

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Valid go.mod file
Redistributable license
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Stable version
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Repository

github.com/webmeshproj/webmesh

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Documentation ¶

Overview ¶

Package crypto contains cryptographic utilities.

Index ¶

Constants
Variables
func IsValidDefaultPSK(s string) bool
func IsValidPSK(s string, length int) bool
func IsValidPSKBytes(b []byte, length int) bool
func Sign(data []byte, psk PSK) ([]byte, error)
func Verify(data, signature []byte, psk PSK) error
type PSK
type Signer

Constants ¶

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const DefaultPSKLength = 32

DefaultPSKLength is the default length of a PSK.

Variables ¶

View Source

var ErrInvalidSignature = fmt.Errorf("invalid signature")

ErrInvalidSignature is returned when a signature is invalid.

View Source

var ValidPSKChars = []byte("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789")

ValidPSKChars is the set of valid characters for a PSK.

Functions ¶

func IsValidDefaultPSK ¶ added in v0.4.1

func IsValidDefaultPSK(s string) bool

IsValidDefaultPSK returns true if the given string is a valid PSK.

func IsValidPSK ¶ added in v0.4.1

func IsValidPSK(s string, length int) bool

IsValidPSK returns true if the given string is a valid PSK.

func IsValidPSKBytes ¶ added in v0.4.1

func IsValidPSKBytes(b []byte, length int) bool

IsValidPSKBytes returns true if the given byte slice is a valid PSK.

func Sign ¶ added in v0.4.1

func Sign(data []byte, psk PSK) ([]byte, error)

Sign signs the given data using the given PSK.

func Verify ¶ added in v0.4.1

func Verify(data, signature []byte, psk PSK) error

Verify verifies the given signature against the given data using the given PSK.

Types ¶

type PSK ¶

type PSK []byte

PSK is a pre-shared key.

func GeneratePSK ¶

func GeneratePSK() (PSK, error)

GeneratePSK generates a PSK.

func GeneratePSKWithLength ¶

func GeneratePSKWithLength(length int) (PSK, error)

GeneratePSKWithLength generates a PSK with a given length.

func MustGeneratePSK ¶

func MustGeneratePSK() PSK

MustGeneratePSK generates a PSK and panics on error.

func (PSK) DeterministicSign ¶ added in v0.4.1

func (p PSK) DeterministicSign(data []byte) ([]byte, error)

DeterministicSign creates a signature of the given data using this PSK.

func (PSK) DeterministicSignatureSize ¶ added in v0.4.1

func (p PSK) DeterministicSignatureSize() int

func (PSK) DeterministicVerify ¶ added in v0.4.1

func (p PSK) DeterministicVerify(data, signature []byte) error

DeterministicVerify verifies the given signature against the given data using this PSK.

func (PSK) IsValid ¶ added in v0.4.1

func (p PSK) IsValid() bool

func (PSK) Sign ¶ added in v0.4.1

func (p PSK) Sign(data []byte) ([]byte, error)

Sign creates a signature of the given data using this PSK.

func (PSK) SignatureSize ¶ added in v0.4.1

func (p PSK) SignatureSize() int

func (PSK) String ¶

func (p PSK) String() string

func (PSK) Verify ¶ added in v0.4.1

func (p PSK) Verify(data, signature []byte) error

Verify verifies the given signature against the given data using this PSK.

type Signer ¶ added in v0.4.1

type Signer interface {
	// Sign signs the given data.
	Sign(data []byte) ([]byte, error)
	// Verify verifies the given signature against the given data.
	Verify(data, signature []byte) error
	// SignatureSize returns the size of the signature.
	SignatureSize() int
}

Signer is a type that can sign data.

Source Files ¶

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