crypto

package
v4.0.0-alpha1 Latest Latest
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 Go to latest Published: Mar 17, 2022 License: AGPL-3.0 Imports: 31 Imported by: 0

Documentation

Overview

Package crypto provides tools for data encryption and certificates management

Index

Constants

View Source 
const (
	AESGCMAuthTagSize = 16
	AESGCMNonceSize   = 12
)

Variables

View Source 
var (
	// ErrNotFound is the expected error if the secret isn't found in the
	// keyring.
	ErrNotFound = fmt.Errorf("secret not found in keyring")
)
View Source 
var SALT = []byte{224, 32, 00, 33, 78, 3, 25, 56, 54, 5, 54, 9, 79, 76, 189, 8}

Functions

func CreateRsaKey 

func CreateRsaKey() (*rsa.PrivateKey, error)

CreateRsaKey generates a new private key.

func DeleteKeyringPassword 

func DeleteKeyringPassword(service string, user string) error

DeleteKeyringPassword removes all key that matches "service" and "user".

func EncodePrivate 

func EncodePrivate(password []byte, key crypto.PrivateKey) ([]byte, error)

func GenerateCACertificate 

func GenerateCACertificate(t *Template) (*x509.Certificate, error)

GenerateCACertificate generates a certificate for a CA.

func GenerateServiceCertificate 

func GenerateServiceCertificate(t *Template) (*x509.Certificate, error)

GenerateServiceCertificate generates a certificate for a service.

func GetKeyringPassword 

func GetKeyringPassword(service string, user string, createIfNotExist bool) ([]byte, error)

GetKeyringPassword retrieves a password from the keyring. If no key matches "service" and "user" and if createIfNotExist flag is set, a new key is generated and returned.

func GetSignature 

func GetSignature(key *ecdsa.PrivateKey, data []byte) (string, error)

func KeyFromPassword 

func KeyFromPassword(password []byte, l int) []byte

func LoadCertificate 

func LoadCertificate(file string) (*x509.Certificate, error)

LoadCertificate loads file contenant and decodes it into a x509.Certificate.

func LoadPrivateKey 

func LoadPrivateKey(password []byte, file string) (crypto.PrivateKey, error)

LoadPrivateKey loads the encrypted private key from the passed file and decrypts it.

func Md5 

func Md5(data []byte) []byte

func NewEcdsaPrivateKey 

func NewEcdsaPrivateKey(alg string) (*ecdsa.PrivateKey, error)

func NewLegacyAESGCMMaterials 

func NewLegacyAESGCMMaterials(info *encryption.NodeInfo) *legacyReadMaterials

NewLegacyAESGCMMaterials creates an encryption materials that uses legacy material

func Open 

func Open(key []byte, nonce []byte, cipherData []byte) ([]byte, error)

func ParsePrivate 

func ParsePrivate(password []byte, bytes []byte) (crypto.PrivateKey, error)

func PublicKeyFromRsaKey 

func PublicKeyFromRsaKey(privateKey *rsa.PrivateKey) rsa.PublicKey

PublicKeyFromRsaKey extracts the public key.

func RandomBytes 

func RandomBytes(size int) ([]byte, error)

func RsaKeyFromPEM 

func RsaKeyFromPEM(pemString string) (*rsa.PrivateKey, error)

RsaKeyFromPEM parses a PEM string.

func RsaKeyFromPEMFile 

func RsaKeyFromPEMFile(filename string) (*rsa.PrivateKey, error)

RsaKeyFromPEMFile loads a PEM file and parses the private key.

func RsaKeyToPEM 

func RsaKeyToPEM(key *rsa.PrivateKey, filename ...string) (string, error)

RsaKeyToPEM encodes the private key in PEM format.

func RsaPublicKeyToPEM 

func RsaPublicKeyToPEM(pubKey rsa.PublicKey, filename ...string) (string, error)

RsaPublicKeyToPEM encodes the public key to PEM format.

func Seal 

func Seal(key []byte, data []byte) ([]byte, error)

func SealWithNonce 

func SealWithNonce(key []byte, nonce []byte, data []byte) ([]byte, error)

func SetKeyringPassword 

func SetKeyringPassword(service string, user string, password []byte) error

SetKeyringPassword base64-encodes password and stores it.

func StoreCertificate 

func StoreCertificate(cert *x509.Certificate, file string, perm os.FileMode) error

StoreCertificate encodes certificate and stores the result in file.

func StorePrivateKey 

func StorePrivateKey(key crypto.PrivateKey, password []byte, file string) error

StorePrivateKey encrypts the private key and stores it in the returned file.

func VerifySignature 

func VerifySignature(data []byte, key *ecdsa.PublicKey, signature string) bool

Types

type AESGCMEncryptionMaterials 

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

AESGCMEncryptionMaterials implements AES-GCM encryption

func NewAESGCMMaterials 

func NewAESGCMMaterials(info *encryption.NodeInfo, blockHandler BlockHandler) *AESGCMEncryptionMaterials

NewAESGCMMaterials creates an encryption materials that use AES GCM.

func (*AESGCMEncryptionMaterials) CalculateOutputSize 

func (m *AESGCMEncryptionMaterials) CalculateOutputSize(plainSize int64, user string) int64

func (*AESGCMEncryptionMaterials) Close 

func (m *AESGCMEncryptionMaterials) Close() error

func (*AESGCMEncryptionMaterials) Read 

func (m *AESGCMEncryptionMaterials) Read(b []byte) (int, error)

func (*AESGCMEncryptionMaterials) SetPlainRange 

func (m *AESGCMEncryptionMaterials) SetPlainRange(offset, length int64)

func (*AESGCMEncryptionMaterials) SetupDecryptMode 

func (m *AESGCMEncryptionMaterials) SetupDecryptMode(workingKey []byte, stream io.Reader) error

func (*AESGCMEncryptionMaterials) SetupEncryptMode 

func (m *AESGCMEncryptionMaterials) SetupEncryptMode(workingKey []byte, stream io.Reader) error

type BlockHandler 

type BlockHandler interface {
	SendKey(key *encryption.NodeKey) error
	SendBlock(block *encryption.Block) error
	Close() error
}

type EncryptedBlock 

type EncryptedBlock struct {
	Header     *EncryptedBlockHeader
	HeaderSize uint32
	Payload    []byte
}

EncryptedBlock describes block

func (*EncryptedBlock) GetPayloadLength 

func (b *EncryptedBlock) GetPayloadLength() uint32

func (*EncryptedBlock) Read 

func (b *EncryptedBlock) Read(reader io.Reader) (int, error)

func (*EncryptedBlock) SetPayload 

func (b *EncryptedBlock) SetPayload(payload []byte) error

func (*EncryptedBlock) Write 

func (b *EncryptedBlock) Write(writer io.Writer) (int, error)

type EncryptedBlockHeader 

type EncryptedBlockHeader struct {
	Options *Options
	Nonce   []byte
	// contains filtered or unexported fields
}

EncryptedBlockHeader describes headers

func (*EncryptedBlockHeader) GetDataLength 

func (h *EncryptedBlockHeader) GetDataLength() uint32

func (*EncryptedBlockHeader) Read 

func (h *EncryptedBlockHeader) Read(reader io.Reader) (int, error)

func (*EncryptedBlockHeader) String 

func (h *EncryptedBlockHeader) String() string

func (*EncryptedBlockHeader) Write 

func (h *EncryptedBlockHeader) Write(writer io.Writer) (int, error)

type EncryptedBlockHeaderOption 

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

EncryptedBlockHeaderOption describes header

func (*EncryptedBlockHeaderOption) GetID 

func (op *EncryptedBlockHeaderOption) GetID() uint8

func (*EncryptedBlockHeaderOption) GetValue 

func (op *EncryptedBlockHeaderOption) GetValue() []byte

func (*EncryptedBlockHeaderOption) HasValue 

func (op *EncryptedBlockHeaderOption) HasValue() bool

func (*EncryptedBlockHeaderOption) IsTheLast 

func (op *EncryptedBlockHeaderOption) IsTheLast() bool

func (*EncryptedBlockHeaderOption) Read 

func (op *EncryptedBlockHeaderOption) Read(reader io.Reader) (int, error)

func (*EncryptedBlockHeaderOption) SetId 

func (op *EncryptedBlockHeaderOption) SetId(id uint8) error

func (*EncryptedBlockHeaderOption) SetIsTheLast 

func (op *EncryptedBlockHeaderOption) SetIsTheLast(last bool)

func (*EncryptedBlockHeaderOption) SetValue 

func (op *EncryptedBlockHeaderOption) SetValue(value []byte) error

func (*EncryptedBlockHeaderOption) Write 

func (op *EncryptedBlockHeaderOption) Write(writer io.Writer) (int, error)

type Keyring 

type Keyring interface {
	Get(string, string) (string, error)
	Set(string, string, string) error
	Delete(string, string) error
}

func NewAutoKeyring 

func NewAutoKeyring(base Keyring) Keyring

func NewConfigKeyring 

func NewConfigKeyring(store config.Store, opt ...KeyringOption) Keyring

NewConfigKeyring places the keyring in a config store

func NewStdKeyring 

func NewStdKeyring() Keyring

NewStdKeyring places the keyring in a config store

type KeyringOption 

type KeyringOption func(*KeyringOptions)

func WithAutoCreate 

func WithAutoCreate(b bool) KeyringOption

type KeyringOptions 

type KeyringOptions struct {
	Auto bool
}

type Options 

type Options struct {
	Position int16
	PartId   int16
	Key      []byte
	UserId   string
}

Options EncryptedBlockHeaderOptions

func (*Options) Read 

func (opts *Options) Read(reader io.Reader) (int, error)

func (*Options) Write 

func (opts *Options) Write(writer io.Writer) (int, error)

type Template 

type Template struct {
	Name              string
	Domains           []string
	IPs               []net.IP
	Expiry            time.Duration
	PublicKey         crypto.PublicKey
	SignerPrivateKey  crypto.PrivateKey
	SignerCertificate *x509.Certificate
}

Template specs for generating a certificate.

Source Files

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Directories

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