bccsp

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 Go to latest Published: Nov 1, 2017 License: Apache-2.0 Imports: 4 Imported by: 0

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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

Constants

View Source 
const (
	// ECDSA Elliptic Curve Digital Signature Algorithm (key gen, import, sign, verify),
	// at default security level.
	// Each BCCSP may or may not support default security level. If not supported than
	// an error will be returned.
	ECDSA = "ECDSA"

	// ECDSA Elliptic Curve Digital Signature Algorithm over P-256 curve
	ECDSAP256 = "ECDSAP256"

	// ECDSA Elliptic Curve Digital Signature Algorithm over P-384 curve
	ECDSAP384 = "ECDSAP384"

	// ECDSAReRand ECDSA key re-randomization
	ECDSAReRand = "ECDSA_RERAND"

	// RSA at the default security level.
	// Each BCCSP may or may not support default security level. If not supported than
	// an error will be returned.
	RSA = "RSA"
	// RSA at 1024 bit security level.
	RSA1024 = "RSA1024"
	// RSA at 2048 bit security level.
	RSA2048 = "RSA2048"
	// RSA at 3072 bit security level.
	RSA3072 = "RSA3072"
	// RSA at 4096 bit security level.
	RSA4096 = "RSA4096"

	// AES Advanced Encryption Standard at the default security level.
	// Each BCCSP may or may not support default security level. If not supported than
	// an error will be returned.
	AES = "AES"
	// AES Advanced Encryption Standard at 128 bit security level
	AES128 = "AES128"
	// AES Advanced Encryption Standard at 192 bit security level
	AES192 = "AES192"
	// AES Advanced Encryption Standard at 256 bit security level
	AES256 = "AES256"

	// HMAC keyed-hash message authentication code
	HMAC = "HMAC"
	// HMACTruncated256 HMAC truncated at 256 bits.
	HMACTruncated256 = "HMAC_TRUNCATED_256"

	// SHA Secure Hash Algorithm using default family.
	// Each BCCSP may or may not support default security level. If not supported than
	// an error will be returned.
	SHA = "SHA"

	// SHA2 is an identifier for SHA2 hash family
	SHA2 = "SHA2"
	// SHA3 is an identifier for SHA3 hash family
	SHA3 = "SHA3"

	// SHA256
	SHA256 = "SHA256"
	// SHA384
	SHA384 = "SHA384"
	// SHA3_256
	SHA3_256 = "SHA3_256"
	// SHA3_384
	SHA3_384 = "SHA3_384"

	// X509Certificate Label for X509 certificate related operation
	X509Certificate = "X509Certificate"
)

Variables

This section is empty.

Functions

This section is empty.

Types

type AES128KeyGenOpts 

type AES128KeyGenOpts struct {
	Temporary bool
}

AES128KeyGenOpts contains options for AES key generation at 128 security level

func (*AES128KeyGenOpts) Algorithm 

func (opts *AES128KeyGenOpts) Algorithm() string

Algorithm returns the key generation algorithm identifier (to be used).

func (*AES128KeyGenOpts) Ephemeral 

func (opts *AES128KeyGenOpts) Ephemeral() bool

Ephemeral returns true if the key to generate has to be ephemeral, false otherwise.

type AES192KeyGenOpts 

type AES192KeyGenOpts struct {
	Temporary bool
}

AES192KeyGenOpts contains options for AES key generation at 192 security level

func (*AES192KeyGenOpts) Algorithm 

func (opts *AES192KeyGenOpts) Algorithm() string

Algorithm returns the key generation algorithm identifier (to be used).

func (*AES192KeyGenOpts) Ephemeral 

func (opts *AES192KeyGenOpts) Ephemeral() bool

Ephemeral returns true if the key to generate has to be ephemeral, false otherwise.

type AES256ImportKeyOpts 

type AES256ImportKeyOpts struct {
	Temporary bool
}

AES256ImportKeyOpts contains options for importing AES 256 keys.

func (*AES256ImportKeyOpts) Algorithm 

func (opts *AES256ImportKeyOpts) Algorithm() string

Algorithm returns the key importation algorithm identifier (to be used).

func (*AES256ImportKeyOpts) Ephemeral 

func (opts *AES256ImportKeyOpts) Ephemeral() bool

Ephemeral returns true if the key generated has to be ephemeral, false otherwise.

type AES256KeyGenOpts 

type AES256KeyGenOpts struct {
	Temporary bool
}

AES256KeyGenOpts contains options for AES key generation at 256 security level

func (*AES256KeyGenOpts) Algorithm 

func (opts *AES256KeyGenOpts) Algorithm() string

Algorithm returns the key generation algorithm identifier (to be used).

func (*AES256KeyGenOpts) Ephemeral 

func (opts *AES256KeyGenOpts) Ephemeral() bool

Ephemeral returns true if the key to generate has to be ephemeral, false otherwise.

type AESCBCPKCS7ModeOpts 

type AESCBCPKCS7ModeOpts struct {
	// IV is the initialization vector to be used by the underlying cipher.
	// The length of IV must be the same as the Block's block size.
	// It is used only if different from nil.
	IV []byte
	// PRNG is an instance of a PRNG to be used by the underlying cipher.
	// It is used only if different from nil.
	PRNG io.Reader
}

AESCBCPKCS7ModeOpts contains options for AES encryption in CBC mode with PKCS7 padding. Notice that both IV and PRNG can be nil. In that case, the BCCSP implementation is supposed to sample the IV using a cryptographic secure PRNG. Notice also that either IV or PRNG can be different from nil.

type AESKeyGenOpts 

type AESKeyGenOpts struct {
	Temporary bool
}

AESKeyGenOpts contains options for AES key generation at default security level

func (*AESKeyGenOpts) Algorithm 

func (opts *AESKeyGenOpts) Algorithm() string

Algorithm returns the key generation algorithm identifier (to be used).

func (*AESKeyGenOpts) Ephemeral 

func (opts *AESKeyGenOpts) Ephemeral() bool

Ephemeral returns true if the key to generate has to be ephemeral, false otherwise.

type BCCSP 

type BCCSP interface {

	// KeyGen generates a key using opts.
	KeyGen(opts KeyGenOpts) (k Key, err error)

	// KeyDeriv derives a key from k using opts.
	// The opts argument should be appropriate for the primitive used.
	KeyDeriv(k Key, opts KeyDerivOpts) (dk Key, err error)

	// KeyImport imports a key from its raw representation using opts.
	// The opts argument should be appropriate for the primitive used.
	KeyImport(raw interface{}, opts KeyImportOpts) (k Key, err error)

	// GetKey returns the key this CSP associates to
	// the Subject Key Identifier ski.
	GetKey(ski []byte) (k Key, err error)

	// Hash hashes messages msg using options opts.
	// If opts is nil, the default hash function will be used.
	Hash(msg []byte, opts HashOpts) (hash []byte, err error)

	// GetHash returns and instance of hash.Hash using options opts.
	// If opts is nil, the default hash function will be returned.
	GetHash(opts HashOpts) (h hash.Hash, err error)

	// Sign signs digest using key k.
	// The opts argument should be appropriate for the algorithm used.
	//
	// Note that when a signature of a hash of a larger message is needed,
	// the caller is responsible for hashing the larger message and passing
	// the hash (as digest).
	Sign(k Key, digest []byte, opts SignerOpts) (signature []byte, err error)

	// Verify verifies signature against key k and digest
	// The opts argument should be appropriate for the algorithm used.
	Verify(k Key, signature, digest []byte, opts SignerOpts) (valid bool, err error)

	// Encrypt encrypts plaintext using key k.
	// The opts argument should be appropriate for the algorithm used.
	Encrypt(k Key, plaintext []byte, opts EncrypterOpts) (ciphertext []byte, err error)

	// Decrypt decrypts ciphertext using key k.
	// The opts argument should be appropriate for the algorithm used.
	Decrypt(k Key, ciphertext []byte, opts DecrypterOpts) (plaintext []byte, err error)
}

BCCSP is the blockchain cryptographic service provider that offers the implementation of cryptographic standards and algorithms.

type DecrypterOpts 

type DecrypterOpts interface{}

DecrypterOpts contains options for decrypting with a CSP.

type ECDSAGoPublicKeyImportOpts 

type ECDSAGoPublicKeyImportOpts struct {
	Temporary bool
}

ECDSAGoPublicKeyImportOpts contains options for ECDSA key importation from ecdsa.PublicKey

func (*ECDSAGoPublicKeyImportOpts) Algorithm 

func (opts *ECDSAGoPublicKeyImportOpts) Algorithm() string

Algorithm returns the key importation algorithm identifier (to be used).

func (*ECDSAGoPublicKeyImportOpts) Ephemeral 

func (opts *ECDSAGoPublicKeyImportOpts) Ephemeral() bool

Ephemeral returns true if the key to generate has to be ephemeral, false otherwise.

type ECDSAKeyGenOpts 

type ECDSAKeyGenOpts struct {
	Temporary bool
}

ECDSAKeyGenOpts contains options for ECDSA key generation.

func (*ECDSAKeyGenOpts) Algorithm 

func (opts *ECDSAKeyGenOpts) Algorithm() string

Algorithm returns the key generation algorithm identifier (to be used).

func (*ECDSAKeyGenOpts) Ephemeral 

func (opts *ECDSAKeyGenOpts) Ephemeral() bool

Ephemeral returns true if the key to generate has to be ephemeral, false otherwise.

type ECDSAP256KeyGenOpts 

type ECDSAP256KeyGenOpts struct {
	Temporary bool
}

ECDSAP256KeyGenOpts contains options for ECDSA key generation with curve P-256.

func (*ECDSAP256KeyGenOpts) Algorithm 

func (opts *ECDSAP256KeyGenOpts) Algorithm() string

Algorithm returns the key generation algorithm identifier (to be used).

func (*ECDSAP256KeyGenOpts) Ephemeral 

func (opts *ECDSAP256KeyGenOpts) Ephemeral() bool

Ephemeral returns true if the key to generate has to be ephemeral, false otherwise.

type ECDSAP384KeyGenOpts 

type ECDSAP384KeyGenOpts struct {
	Temporary bool
}

ECDSAP384KeyGenOpts contains options for ECDSA key generation with curve P-384.

func (*ECDSAP384KeyGenOpts) Algorithm 

func (opts *ECDSAP384KeyGenOpts) Algorithm() string

Algorithm returns the key generation algorithm identifier (to be used).

func (*ECDSAP384KeyGenOpts) Ephemeral 

func (opts *ECDSAP384KeyGenOpts) Ephemeral() bool

Ephemeral returns true if the key to generate has to be ephemeral, false otherwise.

type ECDSAPKIXPublicKeyImportOpts 

type ECDSAPKIXPublicKeyImportOpts struct {
	Temporary bool
}

ECDSAPKIXPublicKeyImportOpts contains options for ECDSA public key importation in PKIX format

func (*ECDSAPKIXPublicKeyImportOpts) Algorithm 

func (opts *ECDSAPKIXPublicKeyImportOpts) Algorithm() string

Algorithm returns the key importation algorithm identifier (to be used).

func (*ECDSAPKIXPublicKeyImportOpts) Ephemeral 

func (opts *ECDSAPKIXPublicKeyImportOpts) Ephemeral() bool

Ephemeral returns true if the key to generate has to be ephemeral, false otherwise.

type ECDSAPrivateKeyImportOpts 

type ECDSAPrivateKeyImportOpts struct {
	Temporary bool
}

ECDSAPrivateKeyImportOpts contains options for ECDSA secret key importation in DER format or PKCS#8 format.

func (*ECDSAPrivateKeyImportOpts) Algorithm 

func (opts *ECDSAPrivateKeyImportOpts) Algorithm() string

Algorithm returns the key importation algorithm identifier (to be used).

func (*ECDSAPrivateKeyImportOpts) Ephemeral 

func (opts *ECDSAPrivateKeyImportOpts) Ephemeral() bool

Ephemeral returns true if the key to generate has to be ephemeral, false otherwise.

type ECDSAReRandKeyOpts 

type ECDSAReRandKeyOpts struct {
	Temporary bool
	Expansion []byte
}

ECDSAReRandKeyOpts contains options for ECDSA key re-randomization.

func (*ECDSAReRandKeyOpts) Algorithm 

func (opts *ECDSAReRandKeyOpts) Algorithm() string

Algorithm returns the key derivation algorithm identifier (to be used).

func (*ECDSAReRandKeyOpts) Ephemeral 

func (opts *ECDSAReRandKeyOpts) Ephemeral() bool

Ephemeral returns true if the key to generate has to be ephemeral, false otherwise.

func (*ECDSAReRandKeyOpts) ExpansionValue 

func (opts *ECDSAReRandKeyOpts) ExpansionValue() []byte

ExpansionValue returns the re-randomization factor

type EncrypterOpts 

type EncrypterOpts interface{}

EncrypterOpts contains options for encrypting with a CSP.

type HMACDeriveKeyOpts 

type HMACDeriveKeyOpts struct {
	Temporary bool
	Arg       []byte
}

HMACDeriveKeyOpts contains options for HMAC key derivation.

func (*HMACDeriveKeyOpts) Algorithm 

func (opts *HMACDeriveKeyOpts) Algorithm() string

Algorithm returns the key derivation algorithm identifier (to be used).

func (*HMACDeriveKeyOpts) Argument 

func (opts *HMACDeriveKeyOpts) Argument() []byte

Argument returns the argument to be passed to the HMAC

func (*HMACDeriveKeyOpts) Ephemeral 

func (opts *HMACDeriveKeyOpts) Ephemeral() bool

Ephemeral returns true if the key to generate has to be ephemeral, false otherwise.

type HMACImportKeyOpts 

type HMACImportKeyOpts struct {
	Temporary bool
}

HMACImportKeyOpts contains options for importing HMAC keys.

func (*HMACImportKeyOpts) Algorithm 

func (opts *HMACImportKeyOpts) Algorithm() string

Algorithm returns the key importation algorithm identifier (to be used).

func (*HMACImportKeyOpts) Ephemeral 

func (opts *HMACImportKeyOpts) Ephemeral() bool

Ephemeral returns true if the key generated has to be ephemeral, false otherwise.

type HMACTruncated256AESDeriveKeyOpts 

type HMACTruncated256AESDeriveKeyOpts struct {
	Temporary bool
	Arg       []byte
}

HMACTruncated256AESDeriveKeyOpts contains options for HMAC truncated at 256 bits key derivation.

func (*HMACTruncated256AESDeriveKeyOpts) Algorithm 

func (opts *HMACTruncated256AESDeriveKeyOpts) Algorithm() string

Algorithm returns the key derivation algorithm identifier (to be used).

func (*HMACTruncated256AESDeriveKeyOpts) Argument 

func (opts *HMACTruncated256AESDeriveKeyOpts) Argument() []byte

Argument returns the argument to be passed to the HMAC

func (*HMACTruncated256AESDeriveKeyOpts) Ephemeral 

func (opts *HMACTruncated256AESDeriveKeyOpts) Ephemeral() bool

Ephemeral returns true if the key to generate has to be ephemeral, false otherwise.

type HashOpts 

type HashOpts interface {

	// Algorithm returns the hash algorithm identifier (to be used).
	Algorithm() string
}

HashOpts contains options for hashing with a CSP.

func GetHashOpt 

func GetHashOpt(hashFunction string) (HashOpts, error)

GetHashOpt returns the HashOpts corresponding to the passed hash function

type Key 

type Key interface {

	// Bytes converts this key to its byte representation,
	// if this operation is allowed.
	Bytes() ([]byte, error)

	// SKI returns the subject key identifier of this key.
	SKI() []byte

	// Symmetric returns true if this key is a symmetric key,
	// false is this key is asymmetric
	Symmetric() bool

	// Private returns true if this key is a private key,
	// false otherwise.
	Private() bool

	// PublicKey returns the corresponding public key part of an asymmetric public/private key pair.
	// This method returns an error in symmetric key schemes.
	PublicKey() (Key, error)
}

Key represents a cryptographic key

type KeyDerivOpts 

type KeyDerivOpts interface {

	// Algorithm returns the key derivation algorithm identifier (to be used).
	Algorithm() string

	// Ephemeral returns true if the key to derived has to be ephemeral,
	// false otherwise.
	Ephemeral() bool
}

KeyDerivOpts contains options for key-derivation with a CSP.

type KeyGenOpts 

type KeyGenOpts interface {

	// Algorithm returns the key generation algorithm identifier (to be used).
	Algorithm() string

	// Ephemeral returns true if the key to generate has to be ephemeral,
	// false otherwise.
	Ephemeral() bool
}

KeyGenOpts contains options for key-generation with a CSP.

type KeyImportOpts 

type KeyImportOpts interface {

	// Algorithm returns the key importation algorithm identifier (to be used).
	Algorithm() string

	// Ephemeral returns true if the key generated has to be ephemeral,
	// false otherwise.
	Ephemeral() bool
}

KeyImportOpts contains options for importing the raw material of a key with a CSP.

type KeyStore 

type KeyStore interface {

	// ReadOnly returns true if this KeyStore is read only, false otherwise.
	// If ReadOnly is true then StoreKey will fail.
	ReadOnly() bool

	// GetKey returns a key object whose SKI is the one passed.
	GetKey(ski []byte) (k Key, err error)

	// StoreKey stores the key k in this KeyStore.
	// If this KeyStore is read only then the method will fail.
	StoreKey(k Key) (err error)
}

KeyStore represents a storage system for cryptographic keys. It allows to store and retrieve bccsp.Key objects. The KeyStore can be read only, in that case StoreKey will return an error.

type RSA1024KeyGenOpts 

type RSA1024KeyGenOpts struct {
	Temporary bool
}

RSA1024KeyGenOpts contains options for RSA key generation at 1024 security.

func (*RSA1024KeyGenOpts) Algorithm 

func (opts *RSA1024KeyGenOpts) Algorithm() string

Algorithm returns the key generation algorithm identifier (to be used).

func (*RSA1024KeyGenOpts) Ephemeral 

func (opts *RSA1024KeyGenOpts) Ephemeral() bool

Ephemeral returns true if the key to generate has to be ephemeral, false otherwise.

type RSA2048KeyGenOpts 

type RSA2048KeyGenOpts struct {
	Temporary bool
}

RSA2048KeyGenOpts contains options for RSA key generation at 2048 security.

func (*RSA2048KeyGenOpts) Algorithm 

func (opts *RSA2048KeyGenOpts) Algorithm() string

Algorithm returns the key generation algorithm identifier (to be used).

func (*RSA2048KeyGenOpts) Ephemeral 

func (opts *RSA2048KeyGenOpts) Ephemeral() bool

Ephemeral returns true if the key to generate has to be ephemeral, false otherwise.

type RSA3072KeyGenOpts 

type RSA3072KeyGenOpts struct {
	Temporary bool
}

RSA3072KeyGenOpts contains options for RSA key generation at 3072 security.

func (*RSA3072KeyGenOpts) Algorithm 

func (opts *RSA3072KeyGenOpts) Algorithm() string

Algorithm returns the key generation algorithm identifier (to be used).

func (*RSA3072KeyGenOpts) Ephemeral 

func (opts *RSA3072KeyGenOpts) Ephemeral() bool

Ephemeral returns true if the key to generate has to be ephemeral, false otherwise.

type RSA4096KeyGenOpts 

type RSA4096KeyGenOpts struct {
	Temporary bool
}

RSA4096KeyGenOpts contains options for RSA key generation at 4096 security.

func (*RSA4096KeyGenOpts) Algorithm 

func (opts *RSA4096KeyGenOpts) Algorithm() string

Algorithm returns the key generation algorithm identifier (to be used).

func (*RSA4096KeyGenOpts) Ephemeral 

func (opts *RSA4096KeyGenOpts) Ephemeral() bool

Ephemeral returns true if the key to generate has to be ephemeral, false otherwise.

type RSAGoPublicKeyImportOpts 

type RSAGoPublicKeyImportOpts struct {
	Temporary bool
}

ECDSAGoPublicKeyImportOpts contains options for RSA key importation from rsa.PublicKey

func (*RSAGoPublicKeyImportOpts) Algorithm 

func (opts *RSAGoPublicKeyImportOpts) Algorithm() string

Algorithm returns the key importation algorithm identifier (to be used).

func (*RSAGoPublicKeyImportOpts) Ephemeral 

func (opts *RSAGoPublicKeyImportOpts) Ephemeral() bool

Ephemeral returns true if the key to generate has to be ephemeral, false otherwise.

type RSAKeyGenOpts 

type RSAKeyGenOpts struct {
	Temporary bool
}

RSAKeyGenOpts contains options for RSA key generation.

func (*RSAKeyGenOpts) Algorithm 

func (opts *RSAKeyGenOpts) Algorithm() string

Algorithm returns the key generation algorithm identifier (to be used).

func (*RSAKeyGenOpts) Ephemeral 

func (opts *RSAKeyGenOpts) Ephemeral() bool

Ephemeral returns true if the key to generate has to be ephemeral, false otherwise.

type SHA256Opts 

type SHA256Opts struct {
}

SHA256Opts contains options relating to SHA-256.

func (*SHA256Opts) Algorithm 

func (opts *SHA256Opts) Algorithm() string

Algorithm returns the hash algorithm identifier (to be used).

type SHA384Opts 

type SHA384Opts struct {
}

SHA384Opts contains options relating to SHA-384.

func (*SHA384Opts) Algorithm 

func (opts *SHA384Opts) Algorithm() string

Algorithm returns the hash algorithm identifier (to be used).

type SHA3_256Opts 

type SHA3_256Opts struct {
}

SHA3_256Opts contains options relating to SHA3-256.

func (*SHA3_256Opts) Algorithm 

func (opts *SHA3_256Opts) Algorithm() string

Algorithm returns the hash algorithm identifier (to be used).

type SHA3_384Opts 

type SHA3_384Opts struct {
}

SHA3_384Opts contains options relating to SHA3-384.

func (*SHA3_384Opts) Algorithm 

func (opts *SHA3_384Opts) Algorithm() string

Algorithm returns the hash algorithm identifier (to be used).

type SHAOpts 

type SHAOpts struct {
}

SHAOpts contains options for computing SHA.

func (*SHAOpts) Algorithm 

func (opts *SHAOpts) Algorithm() string

Algorithm returns the hash algorithm identifier (to be used).

type SignerOpts 

type SignerOpts interface {
	crypto.SignerOpts
}

SignerOpts contains options for signing with a CSP.

type X509PublicKeyImportOpts 

type X509PublicKeyImportOpts struct {
	Temporary bool
}

X509PublicKeyImportOpts contains options for importing public keys from an x509 certificate

func (*X509PublicKeyImportOpts) Algorithm 

func (opts *X509PublicKeyImportOpts) Algorithm() string

Algorithm returns the key importation algorithm identifier (to be used).

func (*X509PublicKeyImportOpts) Ephemeral 

func (opts *X509PublicKeyImportOpts) Ephemeral() bool

Ephemeral returns true if the key to generate has to be ephemeral, false otherwise.

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