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Package bccsp

v2.1.1+incompatible
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Published: Jun 1, 2020 | License: Apache-2.0 | Module: github.com/hyperledger/fabric

Overview

Copyright IBM Corp. All Rights Reserved.

SPDX-License-Identifier: Apache-2.0

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

Package Files

Constants

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"

	// 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"
)
const (
	// IDEMIX constant to identify Idemix related algorithms
	IDEMIX = "IDEMIX"
)

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 IdemixAttribute

type IdemixAttribute struct {
	// Type is the attribute's type
	Type IdemixAttributeType
	// Value is the attribute's value
	Value interface{}
}

type IdemixAttributeType

type IdemixAttributeType int

IdemixAttributeType represents the type of an idemix attribute

const (
	// IdemixHiddenAttribute represents an hidden attribute
	IdemixHiddenAttribute IdemixAttributeType = iota
	// IdemixStringAttribute represents a sequence of bytes
	IdemixBytesAttribute
	// IdemixIntAttribute represents an int
	IdemixIntAttribute
)

type IdemixCRISignerOpts

type IdemixCRISignerOpts struct {
	Epoch               int
	RevocationAlgorithm RevocationAlgorithm
	UnrevokedHandles    [][]byte
	// H is the hash function to be used
	H crypto.Hash
}

IdemixCRISignerOpts contains the options to generate an Idemix CRI. The CRI is supposed to be generated by the Issuing authority and can be verified publicly by using the revocation public key.

func (*IdemixCRISignerOpts) HashFunc

func (o *IdemixCRISignerOpts) HashFunc() crypto.Hash

type IdemixCredentialRequestSignerOpts

type IdemixCredentialRequestSignerOpts struct {
	// Attributes contains a list of indices of the attributes to be included in the
	// credential. The indices are with the respect to IdemixIssuerKeyGenOpts#AttributeNames.
	Attributes []int
	// IssuerPK is the public-key of the issuer
	IssuerPK Key
	// IssuerNonce is generated by the issuer and used by the client to generate the credential request.
	// Once the issuer gets the credential requests, it checks that the nonce is the same.
	IssuerNonce []byte
	// HashFun is the hash function to be used
	H crypto.Hash
}

IdemixCredentialRequestSignerOpts contains the option to create a Idemix credential request.

func (*IdemixCredentialRequestSignerOpts) HashFunc

func (o *IdemixCredentialRequestSignerOpts) HashFunc() crypto.Hash

func (*IdemixCredentialRequestSignerOpts) IssuerPublicKey

func (o *IdemixCredentialRequestSignerOpts) IssuerPublicKey() Key

IssuerPublicKey returns the issuer public key used to derive a new unlinkable pseudonym from a credential secret key

type IdemixCredentialSignerOpts

type IdemixCredentialSignerOpts struct {
	// Attributes to include in the credentials. IdemixHiddenAttribute is not allowed here
	Attributes []IdemixAttribute
	// IssuerPK is the public-key of the issuer
	IssuerPK Key
	// HashFun is the hash function to be used
	H crypto.Hash
}

IdemixCredentialSignerOpts contains the options to produce a credential starting from a credential request

func (*IdemixCredentialSignerOpts) HashFunc

func (o *IdemixCredentialSignerOpts) HashFunc() crypto.Hash

HashFunc returns an identifier for the hash function used to produce the message passed to Signer.Sign, or else zero to indicate that no hashing was done.

func (*IdemixCredentialSignerOpts) IssuerPublicKey

func (o *IdemixCredentialSignerOpts) IssuerPublicKey() Key

type IdemixIIssuerPublicKeyImporterErrorType

type IdemixIIssuerPublicKeyImporterErrorType int
const (
	IdemixIssuerPublicKeyImporterUnmarshallingError IdemixIIssuerPublicKeyImporterErrorType = iota
	IdemixIssuerPublicKeyImporterHashError
	IdemixIssuerPublicKeyImporterValidationError
	IdemixIssuerPublicKeyImporterNumAttributesError
	IdemixIssuerPublicKeyImporterAttributeNameError
)

type IdemixIssuerKeyGenOpts

type IdemixIssuerKeyGenOpts struct {
	// Temporary tells if the key is ephemeral
	Temporary bool
	// AttributeNames is a list of attributes
	AttributeNames []string
}

IdemixIssuerKeyGenOpts contains the options for the Idemix Issuer key-generation. A list of attribytes may be optionally passed

func (*IdemixIssuerKeyGenOpts) Algorithm

func (*IdemixIssuerKeyGenOpts) Algorithm() string

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

func (*IdemixIssuerKeyGenOpts) Ephemeral

func (o *IdemixIssuerKeyGenOpts) Ephemeral() bool

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

type IdemixIssuerPublicKeyImportOpts

type IdemixIssuerPublicKeyImportOpts struct {
	Temporary bool
	// AttributeNames is a list of attributes to ensure the import public key has
	AttributeNames []string
}

IdemixIssuerPublicKeyImportOpts contains the options for importing of an Idemix issuer public key.

func (*IdemixIssuerPublicKeyImportOpts) Algorithm

func (*IdemixIssuerPublicKeyImportOpts) Algorithm() string

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

func (*IdemixIssuerPublicKeyImportOpts) Ephemeral

func (o *IdemixIssuerPublicKeyImportOpts) Ephemeral() bool

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

type IdemixIssuerPublicKeyImporterError

type IdemixIssuerPublicKeyImporterError struct {
	Type     IdemixIIssuerPublicKeyImporterErrorType
	ErrorMsg string
	Cause    error
}

func (*IdemixIssuerPublicKeyImporterError) Error

func (r *IdemixIssuerPublicKeyImporterError) Error() string

type IdemixNymKeyDerivationOpts

type IdemixNymKeyDerivationOpts struct {
	// Temporary tells if the key is ephemeral
	Temporary bool
	// IssuerPK is the public-key of the issuer
	IssuerPK Key
}

IdemixNymKeyDerivationOpts contains the options to create a new unlinkable pseudonym from a credential secret key with the respect to the specified issuer public key

func (*IdemixNymKeyDerivationOpts) Algorithm

func (*IdemixNymKeyDerivationOpts) Algorithm() string

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

func (*IdemixNymKeyDerivationOpts) Ephemeral

func (o *IdemixNymKeyDerivationOpts) Ephemeral() bool

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

func (*IdemixNymKeyDerivationOpts) IssuerPublicKey

func (o *IdemixNymKeyDerivationOpts) IssuerPublicKey() Key

IssuerPublicKey returns the issuer public key used to derive a new unlinkable pseudonym from a credential secret key

type IdemixNymPublicKeyImportOpts

type IdemixNymPublicKeyImportOpts struct {
	// Temporary tells if the key is ephemeral
	Temporary bool
}

IdemixNymPublicKeyImportOpts contains the options to import the public part of a pseudonym

func (*IdemixNymPublicKeyImportOpts) Algorithm

func (*IdemixNymPublicKeyImportOpts) Algorithm() string

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

func (*IdemixNymPublicKeyImportOpts) Ephemeral

func (o *IdemixNymPublicKeyImportOpts) Ephemeral() bool

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

type IdemixNymSignerOpts

type IdemixNymSignerOpts struct {
	// Nym is the pseudonym to be used
	Nym Key
	// IssuerPK is the public-key of the issuer
	IssuerPK Key
	// H is the hash function to be used
	H crypto.Hash
}

IdemixNymSignerOpts contains the options to generate an idemix pseudonym signature.

func (*IdemixNymSignerOpts) HashFunc

func (o *IdemixNymSignerOpts) HashFunc() crypto.Hash

HashFunc returns an identifier for the hash function used to produce the message passed to Signer.Sign, or else zero to indicate that no hashing was done.

type IdemixRevocationKeyGenOpts

type IdemixRevocationKeyGenOpts struct {
	// Temporary tells if the key is ephemeral
	Temporary bool
}

IdemixRevocationKeyGenOpts contains the options for the Idemix revocation key-generation.

func (*IdemixRevocationKeyGenOpts) Algorithm

func (*IdemixRevocationKeyGenOpts) Algorithm() string

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

func (*IdemixRevocationKeyGenOpts) Ephemeral

func (o *IdemixRevocationKeyGenOpts) Ephemeral() bool

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

type IdemixRevocationPublicKeyImportOpts

type IdemixRevocationPublicKeyImportOpts struct {
	Temporary bool
}

IdemixRevocationPublicKeyImportOpts contains the options for importing of an Idemix revocation public key.

func (*IdemixRevocationPublicKeyImportOpts) Algorithm

func (*IdemixRevocationPublicKeyImportOpts) Algorithm() string

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

func (*IdemixRevocationPublicKeyImportOpts) Ephemeral

func (o *IdemixRevocationPublicKeyImportOpts) Ephemeral() bool

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

type IdemixSignerOpts

type IdemixSignerOpts struct {
	// Nym is the pseudonym to be used
	Nym Key
	// IssuerPK is the public-key of the issuer
	IssuerPK Key
	// Credential is the byte representation of the credential signed by the issuer
	Credential []byte
	// Attributes specifies which attribute should be disclosed and which not.
	// If Attributes[i].Type = IdemixHiddenAttribute
	// then the i-th credential attribute should not be disclosed, otherwise the i-th
	// credential attribute will be disclosed.
	// At verification time, if the i-th attribute is disclosed (Attributes[i].Type != IdemixHiddenAttribute),
	// then Attributes[i].Value must be set accordingly.
	Attributes []IdemixAttribute
	// RhIndex is the index of attribute containing the revocation handler.
	// Notice that this attributed cannot be discloused
	RhIndex int
	// CRI contains the credential revocation information
	CRI []byte
	// Epoch is the revocation epoch the signature should be produced against
	Epoch int
	// RevocationPublicKey is the revocation public key
	RevocationPublicKey Key
	// H is the hash function to be used
	H crypto.Hash
}

IdemixSignerOpts contains the options to generate an Idemix signature

func (*IdemixSignerOpts) HashFunc

func (o *IdemixSignerOpts) HashFunc() crypto.Hash

type IdemixUserSecretKeyGenOpts

type IdemixUserSecretKeyGenOpts struct {
	Temporary bool
}

IdemixUserSecretKeyGenOpts contains the options for the generation of an Idemix credential secret key.

func (*IdemixUserSecretKeyGenOpts) Algorithm

func (*IdemixUserSecretKeyGenOpts) Algorithm() string

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

func (*IdemixUserSecretKeyGenOpts) Ephemeral

func (o *IdemixUserSecretKeyGenOpts) Ephemeral() bool

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

type IdemixUserSecretKeyImportOpts

type IdemixUserSecretKeyImportOpts struct {
	Temporary bool
}

IdemixUserSecretKeyImportOpts contains the options for importing of an Idemix credential secret key.

func (*IdemixUserSecretKeyImportOpts) Algorithm

func (*IdemixUserSecretKeyImportOpts) Algorithm() string

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

func (*IdemixUserSecretKeyImportOpts) Ephemeral

func (o *IdemixUserSecretKeyImportOpts) Ephemeral() bool

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

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 RevocationAlgorithm

type RevocationAlgorithm int32

RevocationAlgorithm identifies the revocation algorithm

const (
	// AlgNoRevocation means no revocation support
	AlgNoRevocation RevocationAlgorithm = iota
)

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.

Documentation was rendered with GOOS=linux and GOARCH=amd64.

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