package mlkem

import "crypto/mlkem"

Package mlkem implements the quantum-resistant key encapsulation method ML-KEM (formerly known as Kyber), as specified in NIST FIPS 203.

Index

Constants 

const (
	// CiphertextSize1024 is the size of a ciphertext produced by the 1024-bit
	// variant of ML-KEM.
	CiphertextSize1024 = 1568

	// EncapsulationKeySize1024 is the size of an encapsulation key for the
	// 1024-bit variant of ML-KEM.
	EncapsulationKeySize1024 = 1568
)
const (
	// SharedKeySize is the size of a shared key produced by ML-KEM.
	SharedKeySize = 32

	// SeedSize is the size of a seed used to generate a decapsulation key.
	SeedSize = 64

	// CiphertextSize768 is the size of a ciphertext produced by the 768-bit
	// variant of ML-KEM.
	CiphertextSize768 = 1088

	// EncapsulationKeySize768 is the size of an encapsulation key for the
	// 768-bit variant of ML-KEM.
	EncapsulationKeySize768 = 1184
)

Types

type DecapsulationKey1024 

type DecapsulationKey1024 struct {
	// contains filtered or unexported fields
}

DecapsulationKey1024 is the secret key used to decapsulate a shared key from a ciphertext. It includes various precomputed values.

func GenerateKey1024 

func GenerateKey1024() (*DecapsulationKey1024, error)

GenerateKey1024 generates a new decapsulation key, drawing random bytes from crypto/rand. The decapsulation key must be kept secret.

func NewDecapsulationKey1024 

func NewDecapsulationKey1024(seed []byte) (*DecapsulationKey1024, error)

NewDecapsulationKey1024 parses a decapsulation key from a 64-byte seed in the "d || z" form. The seed must be uniformly random.

func (*DecapsulationKey1024) Bytes 

func (dk *DecapsulationKey1024) Bytes() []byte

Bytes returns the decapsulation key as a 64-byte seed in the "d || z" form.

The decapsulation key must be kept secret.

func (*DecapsulationKey1024) Decapsulate 

func (dk *DecapsulationKey1024) Decapsulate(ciphertext []byte) (sharedKey []byte, err error)

Decapsulate generates a shared key from a ciphertext and a decapsulation key. If the ciphertext is not valid, Decapsulate returns an error.

The shared key must be kept secret.

func (*DecapsulationKey1024) EncapsulationKey 

func (dk *DecapsulationKey1024) EncapsulationKey() *EncapsulationKey1024

EncapsulationKey returns the public encapsulation key necessary to produce ciphertexts.

type DecapsulationKey768 

type DecapsulationKey768 struct {
	// contains filtered or unexported fields
}

DecapsulationKey768 is the secret key used to decapsulate a shared key from a ciphertext. It includes various precomputed values.

func GenerateKey768 

func GenerateKey768() (*DecapsulationKey768, error)

GenerateKey768 generates a new decapsulation key, drawing random bytes from crypto/rand. The decapsulation key must be kept secret.

func NewDecapsulationKey768 

func NewDecapsulationKey768(seed []byte) (*DecapsulationKey768, error)

NewDecapsulationKey768 parses a decapsulation key from a 64-byte seed in the "d || z" form. The seed must be uniformly random.

func (*DecapsulationKey768) Bytes 

func (dk *DecapsulationKey768) Bytes() []byte

Bytes returns the decapsulation key as a 64-byte seed in the "d || z" form.

The decapsulation key must be kept secret.

func (*DecapsulationKey768) Decapsulate 

func (dk *DecapsulationKey768) Decapsulate(ciphertext []byte) (sharedKey []byte, err error)

Decapsulate generates a shared key from a ciphertext and a decapsulation key. If the ciphertext is not valid, Decapsulate returns an error.

The shared key must be kept secret.

func (*DecapsulationKey768) EncapsulationKey 

func (dk *DecapsulationKey768) EncapsulationKey() *EncapsulationKey768

EncapsulationKey returns the public encapsulation key necessary to produce ciphertexts.

type EncapsulationKey1024 

type EncapsulationKey1024 struct {
	// contains filtered or unexported fields
}

An EncapsulationKey1024 is the public key used to produce ciphertexts to be decapsulated by the corresponding DecapsulationKey1024.

func NewEncapsulationKey1024 

func NewEncapsulationKey1024(encapsulationKey []byte) (*EncapsulationKey1024, error)

NewEncapsulationKey1024 parses an encapsulation key from its encoded form. If the encapsulation key is not valid, NewEncapsulationKey1024 returns an error.

func (*EncapsulationKey1024) Bytes 

func (ek *EncapsulationKey1024) Bytes() []byte

Bytes returns the encapsulation key as a byte slice.

func (*EncapsulationKey1024) Encapsulate 

func (ek *EncapsulationKey1024) Encapsulate() (sharedKey, ciphertext []byte)

Encapsulate generates a shared key and an associated ciphertext from an encapsulation key, drawing random bytes from crypto/rand.

The shared key must be kept secret.

type EncapsulationKey768 

type EncapsulationKey768 struct {
	// contains filtered or unexported fields
}

An EncapsulationKey768 is the public key used to produce ciphertexts to be decapsulated by the corresponding DecapsulationKey768.

func NewEncapsulationKey768 

func NewEncapsulationKey768(encapsulationKey []byte) (*EncapsulationKey768, error)

NewEncapsulationKey768 parses an encapsulation key from its encoded form. If the encapsulation key is not valid, NewEncapsulationKey768 returns an error.

func (*EncapsulationKey768) Bytes 

func (ek *EncapsulationKey768) Bytes() []byte

Bytes returns the encapsulation key as a byte slice.

func (*EncapsulationKey768) Encapsulate 

func (ek *EncapsulationKey768) Encapsulate() (sharedKey, ciphertext []byte)

Encapsulate generates a shared key and an associated ciphertext from an encapsulation key, drawing random bytes from crypto/rand.

The shared key must be kept secret.

Source Files

mlkem1024.go mlkem768.go

Version
v1.24.0-rc.2
Published
Jan 13, 2025
Platform
windows/amd64
Imports
1 packages
Last checked
2 minutes ago –

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