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Package hpke

Constants

const (
    AEAD_AES_128_GCM      = 0x0001
    AEAD_AES_256_GCM      = 0x0002
    AEAD_ChaCha20Poly1305 = 0x0003
)

const DHKEM_X25519_HKDF_SHA256 = 0x0020

const KDF_HKDF_SHA256 = 0x0001

Variables

var SupportedAEADs = map[uint16]struct {
    keySize   int
    nonceSize int
    aead      func([]byte) (cipher.AEAD, error)
}{

    AEAD_AES_128_GCM:      {/* contains filtered or unexported fields */},
    AEAD_AES_256_GCM:      {/* contains filtered or unexported fields */},
    AEAD_ChaCha20Poly1305: {/* contains filtered or unexported fields */},
}

var SupportedKDFs = map[uint16]func() *hkdfKDF{

    KDF_HKDF_SHA256: func() *hkdfKDF { return &hkdfKDF{crypto.SHA256} },
}

var SupportedKEMs = map[uint16]struct {
    curve   ecdh.Curve
    hash    crypto.Hash
    nSecret uint16
}{

    DHKEM_X25519_HKDF_SHA256: {ecdh.X25519(), crypto.SHA256, 32},
}

func ParseHPKEPrivateKey ¶

func ParseHPKEPrivateKey(kemID uint16, bytes []byte) (*ecdh.PrivateKey, error)

func ParseHPKEPublicKey ¶

func ParseHPKEPublicKey(kemID uint16, bytes []byte) (*ecdh.PublicKey, error)

type AEADID ¶

type AEADID uint16

type KDFID ¶

type KDFID uint16

type KemID ¶

type KemID uint16

type Recipient ¶

type Recipient struct {
    // contains filtered or unexported fields
}

func SetupRecipient ¶

func SetupRecipient(kemID, kdfID, aeadID uint16, priv *ecdh.PrivateKey, info, encPubEph []byte) (*Recipient, error)

func (*Recipient) Open ¶

func (r *Recipient) Open(aad, ciphertext []byte) ([]byte, error)

type Sender ¶

type Sender struct {
    // contains filtered or unexported fields
}

func SetupSender ¶

func SetupSender(kemID, kdfID, aeadID uint16, pub *ecdh.PublicKey, info []byte) ([]byte, *Sender, error)

func (*Sender) Seal ¶

func (s *Sender) Seal(aad, plaintext []byte) ([]byte, error)