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types/key: add IsZero methods

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Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick 2020-02-28 11:12:02 -08:00
parent 3878f0a67a
commit a6c695ba6b
1 changed files with 6 additions and 0 deletions
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6
types/key/key.go
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@ -10,6 +10,9 @@
// Private represents a curve25519 private key. // Private represents a curve25519 private key.
type Private [32]byte type Private [32]byte
// Private reports whether p is the zero value.
func (p Private) IsZero() bool { return p == Private{} }
// B32 returns k as the *[32]byte type that's used by the // B32 returns k as the *[32]byte type that's used by the
// golang.org/x/crypto packages. This allocates; it might // golang.org/x/crypto packages. This allocates; it might
// not be appropriate for performance-sensitive paths. // not be appropriate for performance-sensitive paths.
@ -18,6 +21,9 @@ func (k Private) B32() *[32]byte { return (*[32]byte)(&k) }
// Public represents a curve25519 public key. // Public represents a curve25519 public key.
type Public [32]byte type Public [32]byte
// Public reports whether p is the zero value.
func (p Public) IsZero() bool { return p == Public{} }
// B32 returns k as the *[32]byte type that's used by the // B32 returns k as the *[32]byte type that's used by the
// golang.org/x/crypto packages. This allocates; it might // golang.org/x/crypto packages. This allocates; it might
// not be appropriate for performance-sensitive paths. // not be appropriate for performance-sensitive paths.