utils

Documentation

Overview

Copyright IBM Corp. 2016 All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Index

• func AEStoEncryptedPEM(raw []byte, pwd []byte) ([]byte, error)
• func AEStoPEM(raw []byte) []byte
• func Clone(src []byte) []byte
• func DERToPrivateKey(der []byte) (key interface{}, err error)
• func DERToPublicKey(raw []byte) (pub interface{}, err error)
• func DERToSM2Certificate(asn1Data []byte) (*sm2.Certificate, error)
• func DERToX509Certificate(asn1Data []byte) (*x509.Certificate, error)
• func DirEmpty(path string) (bool, error)
• func DirExists(path string) (bool, error)
• func DirMissingOrEmpty(path string) (bool, error)
• func ErrToString(err error) string
• func GetCurveHalfOrdersAt(c elliptic.Curve) *big.Int
• func IsLowS(k *ecdsa.PublicKey, s *big.Int) (bool, error)
• func MarshalECDSASignature(r, s *big.Int) ([]byte, error)
• func PEMtoAES(raw []byte, pwd []byte) ([]byte, error)
• func PEMtoPrivateKey(raw []byte, pwd []byte) (interface{}, error)
• func PEMtoPublicKey(raw []byte, pwd []byte) (interface{}, error)
• func PrivateKeyToDER(privateKey *ecdsa.PrivateKey) ([]byte, error)
• func PrivateKeyToEncryptedPEM(privateKey interface{}, pwd []byte) ([]byte, error)
• func PrivateKeyToPEM(privateKey interface{}, pwd []byte) ([]byte, error)
• func PublicKeyToDER(publicKey interface{}) ([]byte, error)
• func PublicKeyToEncryptedPEM(publicKey interface{}, pwd []byte) ([]byte, error)
• func PublicKeyToPEM(publicKey interface{}, pwd []byte) ([]byte, error)
• func SignatureToLowS(k *ecdsa.PublicKey, signature []byte) ([]byte, error)
• func ToLowS(k *ecdsa.PublicKey, s *big.Int) (*big.Int, bool, error)
• func UnmarshalECDSASignature(raw []byte) (*big.Int, *big.Int, error)
• type ECDSASignature

Functions

func AEStoEncryptedPEM

func AEStoEncryptedPEM(raw []byte, pwd []byte) ([]byte, error)

AEStoEncryptedPEM encapsulates an AES key in the encrypted PEM format

func AEStoPEM

func AEStoPEM(raw []byte) []byte

AEStoPEM encapsulates an AES key in the PEM format

func Clone

func Clone(src []byte) []byte

Clone clones the passed slice

func DERToPrivateKey

func DERToPrivateKey(der []byte) (key interface{}, err error)

DERToPrivateKey unmarshals a der to private key

func DERToPublicKey

func DERToPublicKey(raw []byte) (pub interface{}, err error)

DERToPublicKey unmarshals a der to public key

func DERToSM2Certificate

func DERToSM2Certificate(asn1Data []byte) (*sm2.Certificate, error)

DERToSM2Certificate converts der to sm2

func DERToX509Certificate

func DERToX509Certificate(asn1Data []byte) (*x509.Certificate, error)

DERToX509Certificate converts der to x509

func DirEmpty

func DirEmpty(path string) (bool, error)

DirEmpty checks if a directory is empty

func DirExists

func DirExists(path string) (bool, error)

DirExists checks if a directory exists

func DirMissingOrEmpty

func DirMissingOrEmpty(path string) (bool, error)

DirMissingOrEmpty checks is a directory is missing or empty

func ErrToString

func ErrToString(err error) string

ErrToString converts and error to a string. If the error is nil, it returns the string "<clean>"

func GetCurveHalfOrdersAt

func GetCurveHalfOrdersAt(c elliptic.Curve) *big.Int

func IsLowS

func IsLowS(k *ecdsa.PublicKey, s *big.Int) (bool, error)

IsLow checks that s is a low-S

func MarshalECDSASignature

func MarshalECDSASignature(r, s *big.Int) ([]byte, error)

func PEMtoAES

func PEMtoAES(raw []byte, pwd []byte) ([]byte, error)

PEMtoAES extracts from the PEM an AES key

func PEMtoPrivateKey

func PEMtoPrivateKey(raw []byte, pwd []byte) (interface{}, error)

PEMtoPrivateKey unmarshals a pem to private key

func PEMtoPublicKey

func PEMtoPublicKey(raw []byte, pwd []byte) (interface{}, error)

PEMtoPublicKey unmarshals a pem to public key

func PrivateKeyToDER

func PrivateKeyToDER(privateKey *ecdsa.PrivateKey) ([]byte, error)

PrivateKeyToDER marshals a private key to der

func PrivateKeyToEncryptedPEM

func PrivateKeyToEncryptedPEM(privateKey interface{}, pwd []byte) ([]byte, error)

PrivateKeyToEncryptedPEM converts a private key to an encrypted PEM

func PrivateKeyToPEM

func PrivateKeyToPEM(privateKey interface{}, pwd []byte) ([]byte, error)

PrivateKeyToPEM converts the private key to PEM format. EC private keys are converted to PKCS#8 format. RSA private keys are converted to PKCS#1 format.

func PublicKeyToDER

func PublicKeyToDER(publicKey interface{}) ([]byte, error)

PublicKeyToDER marshals a public key to the der format

func PublicKeyToEncryptedPEM

func PublicKeyToEncryptedPEM(publicKey interface{}, pwd []byte) ([]byte, error)

PublicKeyToEncryptedPEM converts a public key to encrypted pem

func PublicKeyToPEM

func PublicKeyToPEM(publicKey interface{}, pwd []byte) ([]byte, error)

PublicKeyToPEM marshals a public key to the pem format

func SignatureToLowS

func SignatureToLowS(k *ecdsa.PublicKey, signature []byte) ([]byte, error)

func ToLowS

func ToLowS(k *ecdsa.PublicKey, s *big.Int) (*big.Int, bool, error)

func UnmarshalECDSASignature

func UnmarshalECDSASignature(raw []byte) (*big.Int, *big.Int, error)

Types

type ECDSASignature

type ECDSASignature struct {
	R, S *big.Int
}