idemix

package
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 Go to latest Published: Jan 21, 2019 License: Apache-2.0 Imports: 13 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var FieldBytes = int(FP256BN.MODBYTES)

FieldBytes是组顺序的字节长度

View Source 
var GenG1 = FP256BN.NewECPbigs(
	FP256BN.NewBIGints(FP256BN.CURVE_Gx),
	FP256BN.NewBIGints(FP256BN.CURVE_Gy))

geng1是g1组的生成器

View Source 
var GenG2 = FP256BN.NewECP2fp2s(
	FP256BN.NewFP2bigs(FP256BN.NewBIGints(FP256BN.CURVE_Pxa), FP256BN.NewBIGints(FP256BN.CURVE_Pxb)),
	FP256BN.NewFP2bigs(FP256BN.NewBIGints(FP256BN.CURVE_Pya), FP256BN.NewBIGints(FP256BN.CURVE_Pyb)))

geng2是g2组的生成器

View Source 
var GenGT = FP256BN.Fexp(FP256BN.Ate(GenG2, GenG1))

gengt是gt组的生成器

View Source 
var GroupOrder = FP256BN.NewBIGints(FP256BN.CURVE_Order)

GroupOrder是组的顺序

View Source 
var ProofBytes = map[RevocationAlgorithm]int{
	ALG_NO_REVOCATION: 0,
}

Functions

func BigToBytes 

func BigToBytes(big *FP256BN.BIG) []byte

bigtobytes接受一个*amcl.big并返回一个[]字节的表示形式

func Ecp2FromProto 

func Ecp2FromProto(p *ECP2) *FP256BN.ECP2

ecp2fromproto将proto结构*ecp2转换为*amcl.ecp2

func EcpFromProto 

func EcpFromProto(p *ECP) *FP256BN.ECP

ecpfromproto将proto结构*ecp转换为*amcl.ecp

func EcpToBytes 

func EcpToBytes(E *FP256BN.ECP) []byte

func GenerateLongTermRevocationKey 

func GenerateLongTermRevocationKey() (*ecdsa.PrivateKey, error)

GenerateLongterRevocationKey生成用于吊销的长期签名密钥

func GetRand 

func GetRand() (*amcl.RAND, error)

getrand返回一个新的带有新种子的amcl.rand

func HashModOrder 

func HashModOrder(data []byte) *FP256BN.BIG

hashmodorder将数据散列为0，…，grouporder-1

func MakeNym 

func MakeNym(sk *FP256BN.BIG, IPk *IssuerPublicKey, rng *amcl.RAND) (*FP256BN.ECP, *FP256BN.BIG)

makenym创建一个新的不可链接的笔名

func Modadd 

func Modadd(a, b, m *FP256BN.BIG) *FP256BN.BIG

modadd接受输入bigs A、B、M，并返回A+B模M

func Modsub 

func Modsub(a, b, m *FP256BN.BIG) *FP256BN.BIG

modsub接受输入bigs a、b、m并返回a-b模m

func RandModOrder 

func RandModOrder(rng *amcl.RAND) *FP256BN.BIG

randmodorder返回0，…，grouporder-1中的随机元素

func VerifyEpochPK 

func VerifyEpochPK(pk *ecdsa.PublicKey, epochPK *ECP2, epochPkSig []byte, epoch int, alg RevocationAlgorithm) error

verifyepochpk验证某个时期的吊销pk是否有效， 通过检查它是否使用长期吊销密钥签名。 注意，即使我们不使用撤销（即alg=alg_no_撤销），我们也需要 验证签名以确保颁发者确实签署了没有吊销的签名 在这个时代使用。

func WBBKeyGen 

func WBBKeyGen(rng *amcl.RAND) (*FP256BN.BIG, *FP256BN.ECP2)

wbbkeygen创建了一个新的弱Boneh-Boyen签名密钥对（http://ia.cr/2004/171）

func WBBSign 

func WBBSign(sk *FP256BN.BIG, m *FP256BN.BIG) *FP256BN.ECP

wbbsign使用密钥sk在消息m上放置一个弱的boneh-boyen签名

func WBBVerify 

func WBBVerify(pk *FP256BN.ECP2, sig *FP256BN.ECP, m *FP256BN.BIG) error

wbbverify用公钥pk验证消息m上的弱Boneh Boyen签名sig

Types

type CredRequest 

type CredRequest struct {
	Nym                  *ECP     `protobuf:"bytes,1,opt,name=nym,proto3" json:"nym,omitempty"`
	IssuerNonce          []byte   `protobuf:"bytes,2,opt,name=issuer_nonce,json=issuerNonce,proto3" json:"issuer_nonce,omitempty"`
	ProofC               []byte   `protobuf:"bytes,3,opt,name=proof_c,json=proofC,proto3" json:"proof_c,omitempty"`
	ProofS               []byte   `protobuf:"bytes,4,opt,name=proof_s,json=proofS,proto3" json:"proof_s,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

CredRequest指定一个凭据请求对象，该对象由 Nym-一个假名，它是对用户秘密的承诺。 颁发者提供的随机非颁发者提供的非颁发者 证明，证明 Nym内的用户秘密

func NewCredRequest 

func NewCredRequest(sk *FP256BN.BIG, IssuerNonce []byte, ipk *IssuerPublicKey, rng *amcl.RAND) *CredRequest

NewCredRequest创建新的凭证请求，这是交互式凭证颁发协议的第一条消息 （从用户到颁发者）

func (*CredRequest) Check 

func (m *CredRequest) Check(ipk *IssuerPublicKey) error

通过密码检查验证凭证请求

func (*CredRequest) Descriptor 

func (*CredRequest) Descriptor() ([]byte, []int)

func (*CredRequest) GetIssuerNonce 

func (m *CredRequest) GetIssuerNonce() []byte

func (*CredRequest) GetNym 

func (m *CredRequest) GetNym() *ECP

func (*CredRequest) GetProofC 

func (m *CredRequest) GetProofC() []byte

func (*CredRequest) GetProofS 

func (m *CredRequest) GetProofS() []byte

func (*CredRequest) ProtoMessage 

func (*CredRequest) ProtoMessage()

func (*CredRequest) Reset 

func (m *CredRequest) Reset()

func (*CredRequest) String 

func (m *CredRequest) String() string

func (*CredRequest) XXX_DiscardUnknown 

func (m *CredRequest) XXX_DiscardUnknown()

func (*CredRequest) XXX_Marshal 

func (m *CredRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*CredRequest) XXX_Merge 

func (dst *CredRequest) XXX_Merge(src proto.Message)

func (*CredRequest) XXX_Size 

func (m *CredRequest) XXX_Size() int

func (*CredRequest) XXX_Unmarshal 

func (m *CredRequest) XXX_Unmarshal(b []byte) error

type Credential 

type Credential struct {
	A                    *ECP     `protobuf:"bytes,1,opt,name=a,proto3" json:"a,omitempty"`
	B                    *ECP     `protobuf:"bytes,2,opt,name=b,proto3" json:"b,omitempty"`
	E                    []byte   `protobuf:"bytes,3,opt,name=e,proto3" json:"e,omitempty"`
	S                    []byte   `protobuf:"bytes,4,opt,name=s,proto3" json:"s,omitempty"`
	Attrs                [][]byte `protobuf:"bytes,5,rep,name=attrs,proto3" json:"attrs,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

Credential指定一个由 A、B、E、S—签名值 attrs-属性值

func NewCredential 

func NewCredential(key *IssuerKey, m *CredRequest, attrs []*FP256BN.BIG, rng *amcl.RAND) (*Credential, error)

NewCredential颁发新的凭据，这是交互式颁发协议的最后一步 在此步骤中，所有属性值都由颁发者添加，然后与承诺一起签名 来自凭据请求的用户密钥

func (*Credential) Descriptor 

func (*Credential) Descriptor() ([]byte, []int)

func (*Credential) GetA 

func (m *Credential) GetA() *ECP

func (*Credential) GetAttrs 

func (m *Credential) GetAttrs() [][]byte

func (*Credential) GetB 

func (m *Credential) GetB() *ECP

func (*Credential) GetE 

func (m *Credential) GetE() []byte

func (*Credential) GetS 

func (m *Credential) GetS() []byte

func (*Credential) ProtoMessage 

func (*Credential) ProtoMessage()

func (*Credential) Reset 

func (m *Credential) Reset()

func (*Credential) String 

func (m *Credential) String() string

func (*Credential) Ver 

func (cred *Credential) Ver(sk *FP256BN.BIG, ipk *IssuerPublicKey) error

Ver通过验证签名以加密方式验证凭证 属性值和用户密钥

func (*Credential) XXX_DiscardUnknown 

func (m *Credential) XXX_DiscardUnknown()

func (*Credential) XXX_Marshal 

func (m *Credential) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*Credential) XXX_Merge 

func (dst *Credential) XXX_Merge(src proto.Message)

func (*Credential) XXX_Size 

func (m *Credential) XXX_Size() int

func (*Credential) XXX_Unmarshal 

func (m *Credential) XXX_Unmarshal(b []byte) error

type CredentialRevocationInformation 

type CredentialRevocationInformation struct {
	//epoch包含此CRI有效的epoch（时间窗口）
	Epoch int64 `protobuf:"varint,1,opt,name=epoch,proto3" json:"epoch,omitempty"`
	//epoch_pk是吊销机构在这个时期使用的公钥。
	EpochPk *ECP2 `protobuf:"bytes,2,opt,name=epoch_pk,json=epochPk,proto3" json:"epoch_pk,omitempty"`
	//epoch_pk_sig是epoch pk上的签名，在吊销机构的长期密钥下有效。
	EpochPkSig []byte `protobuf:"bytes,3,opt,name=epoch_pk_sig,json=epochPkSig,proto3" json:"epoch_pk_sig,omitempty"`
	//revocation表示使用哪种撤销算法
	RevocationAlg int32 `protobuf:"varint,4,opt,name=revocation_alg,json=revocationAlg,proto3" json:"revocation_alg,omitempty"`
	//吊销数据包含特定于所用吊销算法的数据
	RevocationData       []byte   `protobuf:"bytes,5,opt,name=revocation_data,json=revocationData,proto3" json:"revocation_data,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

func CreateCRI 

func CreateCRI(key *ecdsa.PrivateKey, unrevokedHandles []*FP256BN.BIG, epoch int, alg RevocationAlgorithm, rng *amcl.RAND) (*CredentialRevocationInformation, error)

createcri创建特定时间段（epoch）的凭证吊销信息。 用户可以使用CRI来证明他们没有被撤销。 注意，当不使用撤销（即alg=alg_no_撤销）时，不使用输入的未撤销数据， 由此产生的CRI可以被任何签名者使用。

func (*CredentialRevocationInformation) Descriptor 

func (*CredentialRevocationInformation) Descriptor() ([]byte, []int)

func (*CredentialRevocationInformation) GetEpoch 

func (m *CredentialRevocationInformation) GetEpoch() int64

func (*CredentialRevocationInformation) GetEpochPk 

func (m *CredentialRevocationInformation) GetEpochPk() *ECP2

func (*CredentialRevocationInformation) GetEpochPkSig 

func (m *CredentialRevocationInformation) GetEpochPkSig() []byte

func (*CredentialRevocationInformation) GetRevocationAlg 

func (m *CredentialRevocationInformation) GetRevocationAlg() int32

func (*CredentialRevocationInformation) GetRevocationData 

func (m *CredentialRevocationInformation) GetRevocationData() []byte

func (*CredentialRevocationInformation) ProtoMessage 

func (*CredentialRevocationInformation) ProtoMessage()

func (*CredentialRevocationInformation) Reset 

func (m *CredentialRevocationInformation) Reset()

func (*CredentialRevocationInformation) String 

func (m *CredentialRevocationInformation) String() string

func (*CredentialRevocationInformation) XXX_DiscardUnknown 

func (m *CredentialRevocationInformation) XXX_DiscardUnknown()

func (*CredentialRevocationInformation) XXX_Marshal 

func (m *CredentialRevocationInformation) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*CredentialRevocationInformation) XXX_Merge 

func (dst *CredentialRevocationInformation) XXX_Merge(src proto.Message)

func (*CredentialRevocationInformation) XXX_Size 

func (m *CredentialRevocationInformation) XXX_Size() int

func (*CredentialRevocationInformation) XXX_Unmarshal 

func (m *CredentialRevocationInformation) XXX_Unmarshal(b []byte) error

type ECP 

type ECP struct {
	X                    []byte   `protobuf:"bytes,1,opt,name=x,proto3" json:"x,omitempty"`
	Y                    []byte   `protobuf:"bytes,2,opt,name=y,proto3" json:"y,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

ECP是由其坐标指定的椭圆曲线点。 ECP对应于第一组（g1）的一个元素。

func EcpToProto 

func EcpToProto(p *FP256BN.ECP) *ECP

ecptoproto将a*amcl.ecp转换为proto结构*ecp

func (*ECP) Descriptor 

func (*ECP) Descriptor() ([]byte, []int)

func (*ECP) GetX 

func (m *ECP) GetX() []byte

func (*ECP) GetY 

func (m *ECP) GetY() []byte

func (*ECP) ProtoMessage 

func (*ECP) ProtoMessage()

func (*ECP) Reset 

func (m *ECP) Reset()

func (*ECP) String 

func (m *ECP) String() string

func (*ECP) XXX_DiscardUnknown 

func (m *ECP) XXX_DiscardUnknown()

func (*ECP) XXX_Marshal 

func (m *ECP) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*ECP) XXX_Merge 

func (dst *ECP) XXX_Merge(src proto.Message)

func (*ECP) XXX_Size 

func (m *ECP) XXX_Size() int

func (*ECP) XXX_Unmarshal 

func (m *ECP) XXX_Unmarshal(b []byte) error

type ECP2 

type ECP2 struct {
	Xa                   []byte   `protobuf:"bytes,1,opt,name=xa,proto3" json:"xa,omitempty"`
	Xb                   []byte   `protobuf:"bytes,2,opt,name=xb,proto3" json:"xb,omitempty"`
	Ya                   []byte   `protobuf:"bytes,3,opt,name=ya,proto3" json:"ya,omitempty"`
	Yb                   []byte   `protobuf:"bytes,4,opt,name=yb,proto3" json:"yb,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

ECP2是由其坐标指定的椭圆曲线点。 ECP2对应于第二组（G2）的一个元素。

func Ecp2ToProto 

func Ecp2ToProto(p *FP256BN.ECP2) *ECP2

ecp2toproto将a*amcl.ecp2转换为proto结构*ecp2

func (*ECP2) Descriptor 

func (*ECP2) Descriptor() ([]byte, []int)

func (*ECP2) GetXa 

func (m *ECP2) GetXa() []byte

func (*ECP2) GetXb 

func (m *ECP2) GetXb() []byte

func (*ECP2) GetYa 

func (m *ECP2) GetYa() []byte

func (*ECP2) GetYb 

func (m *ECP2) GetYb() []byte

func (*ECP2) ProtoMessage 

func (*ECP2) ProtoMessage()

func (*ECP2) Reset 

func (m *ECP2) Reset()

func (*ECP2) String 

func (m *ECP2) String() string

func (*ECP2) XXX_DiscardUnknown 

func (m *ECP2) XXX_DiscardUnknown()

func (*ECP2) XXX_Marshal 

func (m *ECP2) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*ECP2) XXX_Merge 

func (dst *ECP2) XXX_Merge(src proto.Message)

func (*ECP2) XXX_Size 

func (m *ECP2) XXX_Size() int

func (*ECP2) XXX_Unmarshal 

func (m *ECP2) XXX_Unmarshal(b []byte) error

type IssuerKey 

type IssuerKey struct {
	Isk                  []byte           `protobuf:"bytes,1,opt,name=isk,proto3" json:"isk,omitempty"`
	Ipk                  *IssuerPublicKey `protobuf:"bytes,2,opt,name=ipk,proto3" json:"ipk,omitempty"`
	XXX_NoUnkeyedLiteral struct{}         `json:"-"`
	XXX_unrecognized     []byte           `json:"-"`
	XXX_sizecache        int32            `json:"-"`
}

issuer key指定一个由 isk-颁发者密钥和 IssuerPublickey-颁发者公钥

func NewIssuerKey 

func NewIssuerKey(AttributeNames []string, rng *amcl.RAND) (*IssuerKey, error)

NewIssuerKey创建一个新的具有属性名称数组的Issuer密钥对 将包含在此颁发者认证的凭据中（凭据规范） 参见http://eprint.iacr.org/2016/663.pdf第4.3，供参考。

func (*IssuerKey) Descriptor 

func (*IssuerKey) Descriptor() ([]byte, []int)

func (*IssuerKey) GetIpk 

func (m *IssuerKey) GetIpk() *IssuerPublicKey

func (*IssuerKey) GetIsk 

func (m *IssuerKey) GetIsk() []byte

func (*IssuerKey) ProtoMessage 

func (*IssuerKey) ProtoMessage()

func (*IssuerKey) Reset 

func (m *IssuerKey) Reset()

func (*IssuerKey) String 

func (m *IssuerKey) String() string

func (*IssuerKey) XXX_DiscardUnknown 

func (m *IssuerKey) XXX_DiscardUnknown()

func (*IssuerKey) XXX_Marshal 

func (m *IssuerKey) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*IssuerKey) XXX_Merge 

func (dst *IssuerKey) XXX_Merge(src proto.Message)

func (*IssuerKey) XXX_Size 

func (m *IssuerKey) XXX_Size() int

func (*IssuerKey) XXX_Unmarshal 

func (m *IssuerKey) XXX_Unmarshal(b []byte) error

type IssuerPublicKey 

type IssuerPublicKey struct {
	AttributeNames       []string `protobuf:"bytes,1,rep,name=attribute_names,json=attributeNames,proto3" json:"attribute_names,omitempty"`
	HSk                  *ECP     `protobuf:"bytes,2,opt,name=h_sk,json=hSk,proto3" json:"h_sk,omitempty"`
	HRand                *ECP     `protobuf:"bytes,3,opt,name=h_rand,json=hRand,proto3" json:"h_rand,omitempty"`
	HAttrs               []*ECP   `protobuf:"bytes,4,rep,name=h_attrs,json=hAttrs,proto3" json:"h_attrs,omitempty"`
	W                    *ECP2    `protobuf:"bytes,5,opt,name=w,proto3" json:"w,omitempty"`
	BarG1                *ECP     `protobuf:"bytes,6,opt,name=bar_g1,json=barG1,proto3" json:"bar_g1,omitempty"`
	BarG2                *ECP     `protobuf:"bytes,7,opt,name=bar_g2,json=barG2,proto3" json:"bar_g2,omitempty"`
	ProofC               []byte   `protobuf:"bytes,8,opt,name=proof_c,json=proofC,proto3" json:"proof_c,omitempty"`
	ProofS               []byte   `protobuf:"bytes,9,opt,name=proof_s,json=proofS,proto3" json:"proof_s,omitempty"`
	Hash                 []byte   `protobuf:"bytes,10,opt,name=hash,proto3" json:"hash,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

IssuerPublickey指定由以下内容组成的颁发者公钥 属性名称-由颁发者颁发的凭证的属性名称列表 h_sk、h_rand、h_attrs、w、bar_g1、bar_g2-与签名键、随机性和属性相对应的组元素 proof_c，proof_s组成一个零知识的密钥知识证明 哈希是附加到它的公钥的哈希

func (*IssuerPublicKey) Check 

func (IPk *IssuerPublicKey) Check() error

检查此颁发者公钥是否有效，即 所有组件都存在，并且一个zk证明可以验证

func (*IssuerPublicKey) Descriptor 

func (*IssuerPublicKey) Descriptor() ([]byte, []int)

func (*IssuerPublicKey) GetAttributeNames 

func (m *IssuerPublicKey) GetAttributeNames() []string

func (*IssuerPublicKey) GetBarG1 

func (m *IssuerPublicKey) GetBarG1() *ECP

func (*IssuerPublicKey) GetBarG2 

func (m *IssuerPublicKey) GetBarG2() *ECP

func (*IssuerPublicKey) GetHAttrs 

func (m *IssuerPublicKey) GetHAttrs() []*ECP

func (*IssuerPublicKey) GetHRand 

func (m *IssuerPublicKey) GetHRand() *ECP

func (*IssuerPublicKey) GetHSk 

func (m *IssuerPublicKey) GetHSk() *ECP

func (*IssuerPublicKey) GetHash 

func (m *IssuerPublicKey) GetHash() []byte

func (*IssuerPublicKey) GetProofC 

func (m *IssuerPublicKey) GetProofC() []byte

func (*IssuerPublicKey) GetProofS 

func (m *IssuerPublicKey) GetProofS() []byte

func (*IssuerPublicKey) GetW 

func (m *IssuerPublicKey) GetW() *ECP2

func (*IssuerPublicKey) ProtoMessage 

func (*IssuerPublicKey) ProtoMessage()

func (*IssuerPublicKey) Reset 

func (m *IssuerPublicKey) Reset()

func (*IssuerPublicKey) SetHash 

func (IPk *IssuerPublicKey) SetHash() error

sethash附加序列化公钥的哈希

func (*IssuerPublicKey) String 

func (m *IssuerPublicKey) String() string

func (*IssuerPublicKey) XXX_DiscardUnknown 

func (m *IssuerPublicKey) XXX_DiscardUnknown()

func (*IssuerPublicKey) XXX_Marshal 

func (m *IssuerPublicKey) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*IssuerPublicKey) XXX_Merge 

func (dst *IssuerPublicKey) XXX_Merge(src proto.Message)

func (*IssuerPublicKey) XXX_Size 

func (m *IssuerPublicKey) XXX_Size() int

func (*IssuerPublicKey) XXX_Unmarshal 

func (m *IssuerPublicKey) XXX_Unmarshal(b []byte) error

type NonRevocationProof 

type NonRevocationProof struct {
	RevocationAlg        int32    `protobuf:"varint,1,opt,name=revocation_alg,json=revocationAlg,proto3" json:"revocation_alg,omitempty"`
	NonRevocationProof   []byte   `protobuf:"bytes,2,opt,name=non_revocation_proof,json=nonRevocationProof,proto3" json:"non_revocation_proof,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

非吊销证明包含凭证未被吊销的证明

func (*NonRevocationProof) Descriptor 

func (*NonRevocationProof) Descriptor() ([]byte, []int)

func (*NonRevocationProof) GetNonRevocationProof 

func (m *NonRevocationProof) GetNonRevocationProof() []byte

func (*NonRevocationProof) GetRevocationAlg 

func (m *NonRevocationProof) GetRevocationAlg() int32

func (*NonRevocationProof) ProtoMessage 

func (*NonRevocationProof) ProtoMessage()

func (*NonRevocationProof) Reset 

func (m *NonRevocationProof) Reset()

func (*NonRevocationProof) String 

func (m *NonRevocationProof) String() string

func (*NonRevocationProof) XXX_DiscardUnknown 

func (m *NonRevocationProof) XXX_DiscardUnknown()

func (*NonRevocationProof) XXX_Marshal 

func (m *NonRevocationProof) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*NonRevocationProof) XXX_Merge 

func (dst *NonRevocationProof) XXX_Merge(src proto.Message)

func (*NonRevocationProof) XXX_Size 

func (m *NonRevocationProof) XXX_Size() int

func (*NonRevocationProof) XXX_Unmarshal 

func (m *NonRevocationProof) XXX_Unmarshal(b []byte) error

type NymSignature 

type NymSignature struct {
	//证明是菲亚特·沙米尔对ZKP的挑战
	ProofC []byte `protobuf:"bytes,1,opt,name=proof_c,json=proofC,proto3" json:"proof_c,omitempty"`
	//proof_s_sk是用户密钥的s值证明知识
	ProofSSk []byte `protobuf:"bytes,2,opt,name=proof_s_sk,json=proofSSk,proto3" json:"proof_s_sk,omitempty"`
	//证明化名是证明化名秘密的S值。
	ProofSRNym []byte `protobuf:"bytes,3,opt,name=proof_s_r_nym,json=proofSRNym,proto3" json:"proof_s_r_nym,omitempty"`
	//nonce是用于签名的新nonce
	Nonce                []byte   `protobuf:"bytes,4,opt,name=nonce,proto3" json:"nonce,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

NymSignature指定对消息签名的签名对象 关于笔名。它不同于标准的idemix.signature，事实上 标准签名对象还证明了该笔名是基于 CA（发行人），而NymSignature仅证明该假名的所有者 在邮件上签名

func NewNymSignature 

func NewNymSignature(sk *FP256BN.BIG, Nym *FP256BN.ECP, RNym *FP256BN.BIG, ipk *IssuerPublicKey, msg []byte, rng *amcl.RAND) (*NymSignature, error)

NewSignature创建新的Idemix假名签名

func (*NymSignature) Descriptor 

func (*NymSignature) Descriptor() ([]byte, []int)

func (*NymSignature) GetNonce 

func (m *NymSignature) GetNonce() []byte

func (*NymSignature) GetProofC 

func (m *NymSignature) GetProofC() []byte

func (*NymSignature) GetProofSRNym 

func (m *NymSignature) GetProofSRNym() []byte

func (*NymSignature) GetProofSSk 

func (m *NymSignature) GetProofSSk() []byte

func (*NymSignature) ProtoMessage 

func (*NymSignature) ProtoMessage()

func (*NymSignature) Reset 

func (m *NymSignature) Reset()

func (*NymSignature) String 

func (m *NymSignature) String() string

func (*NymSignature) Ver 

func (sig *NymSignature) Ver(nym *FP256BN.ECP, ipk *IssuerPublicKey, msg []byte) error

验证IDemix NymSignature

func (*NymSignature) XXX_DiscardUnknown 

func (m *NymSignature) XXX_DiscardUnknown()

func (*NymSignature) XXX_Marshal 

func (m *NymSignature) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*NymSignature) XXX_Merge 

func (dst *NymSignature) XXX_Merge(src proto.Message)

func (*NymSignature) XXX_Size 

func (m *NymSignature) XXX_Size() int

func (*NymSignature) XXX_Unmarshal 

func (m *NymSignature) XXX_Unmarshal(b []byte) error

type RevocationAlgorithm 

type RevocationAlgorithm int32
const (
	ALG_NO_REVOCATION RevocationAlgorithm = iota
)

type Signature 

type Signature struct {
	APrime               *ECP                `protobuf:"bytes,1,opt,name=a_prime,json=aPrime,proto3" json:"a_prime,omitempty"`
	ABar                 *ECP                `protobuf:"bytes,2,opt,name=a_bar,json=aBar,proto3" json:"a_bar,omitempty"`
	BPrime               *ECP                `protobuf:"bytes,3,opt,name=b_prime,json=bPrime,proto3" json:"b_prime,omitempty"`
	ProofC               []byte              `protobuf:"bytes,4,opt,name=proof_c,json=proofC,proto3" json:"proof_c,omitempty"`
	ProofSSk             []byte              `protobuf:"bytes,5,opt,name=proof_s_sk,json=proofSSk,proto3" json:"proof_s_sk,omitempty"`
	ProofSE              []byte              `protobuf:"bytes,6,opt,name=proof_s_e,json=proofSE,proto3" json:"proof_s_e,omitempty"`
	ProofSR2             []byte              `protobuf:"bytes,7,opt,name=proof_s_r2,json=proofSR2,proto3" json:"proof_s_r2,omitempty"`
	ProofSR3             []byte              `protobuf:"bytes,8,opt,name=proof_s_r3,json=proofSR3,proto3" json:"proof_s_r3,omitempty"`
	ProofSSPrime         []byte              `protobuf:"bytes,9,opt,name=proof_s_s_prime,json=proofSSPrime,proto3" json:"proof_s_s_prime,omitempty"`
	ProofSAttrs          [][]byte            `protobuf:"bytes,10,rep,name=proof_s_attrs,json=proofSAttrs,proto3" json:"proof_s_attrs,omitempty"`
	Nonce                []byte              `protobuf:"bytes,11,opt,name=nonce,proto3" json:"nonce,omitempty"`
	Nym                  *ECP                `protobuf:"bytes,12,opt,name=nym,proto3" json:"nym,omitempty"`
	ProofSRNym           []byte              `protobuf:"bytes,13,opt,name=proof_s_r_nym,json=proofSRNym,proto3" json:"proof_s_r_nym,omitempty"`
	RevocationEpochPk    *ECP2               `protobuf:"bytes,14,opt,name=revocation_epoch_pk,json=revocationEpochPk,proto3" json:"revocation_epoch_pk,omitempty"`
	RevocationPkSig      []byte              `protobuf:"bytes,15,opt,name=revocation_pk_sig,json=revocationPkSig,proto3" json:"revocation_pk_sig,omitempty"`
	Epoch                int64               `protobuf:"varint,16,opt,name=epoch,proto3" json:"epoch,omitempty"`
	NonRevocationProof   *NonRevocationProof `protobuf:"bytes,17,opt,name=non_revocation_proof,json=nonRevocationProof,proto3" json:"non_revocation_proof,omitempty"`
	XXX_NoUnkeyedLiteral struct{}            `json:"-"`
	XXX_unrecognized     []byte              `json:"-"`
	XXX_sizecache        int32               `json:"-"`
}

签名指定一个签名对象，该对象由 一个主、一个条、一个主、证明随机凭证签名值 一个零知识的凭证 以及相应的用户秘密和属性值 nonce-用于签名的新nonce 新的笔名（对用户秘密的承诺）

func NewSignature 

func NewSignature(cred *Credential, sk *FP256BN.BIG, Nym *FP256BN.ECP, RNym *FP256BN.BIG, ipk *IssuerPublicKey, Disclosure []byte, msg []byte, rhIndex int, cri *CredentialRevocationInformation, rng *amcl.RAND) (*Signature, error)

NewSignature创建新的Idemix签名（Schnorr类型签名） []字节的公开控制公开哪些属性： 如果disclosure[i]=0，则属性i保持隐藏，否则将被公开。 我们要求撤销处理保持未公开（即披露[Rhindex]=0）。 我们使用http://eprint.iacr.org/2016/663.pdf，sec.提供的零知识证明。4.5证明对BBS+签名的了解

func (*Signature) Descriptor 

func (*Signature) Descriptor() ([]byte, []int)

func (*Signature) GetABar 

func (m *Signature) GetABar() *ECP

func (*Signature) GetAPrime 

func (m *Signature) GetAPrime() *ECP

func (*Signature) GetBPrime 

func (m *Signature) GetBPrime() *ECP

func (*Signature) GetEpoch 

func (m *Signature) GetEpoch() int64

func (*Signature) GetNonRevocationProof 

func (m *Signature) GetNonRevocationProof() *NonRevocationProof

func (*Signature) GetNonce 

func (m *Signature) GetNonce() []byte

func (*Signature) GetNym 

func (m *Signature) GetNym() *ECP

func (*Signature) GetProofC 

func (m *Signature) GetProofC() []byte

func (*Signature) GetProofSAttrs 

func (m *Signature) GetProofSAttrs() [][]byte

func (*Signature) GetProofSE 

func (m *Signature) GetProofSE() []byte

func (*Signature) GetProofSR2 

func (m *Signature) GetProofSR2() []byte

func (*Signature) GetProofSR3 

func (m *Signature) GetProofSR3() []byte

func (*Signature) GetProofSRNym 

func (m *Signature) GetProofSRNym() []byte

func (*Signature) GetProofSSPrime 

func (m *Signature) GetProofSSPrime() []byte

func (*Signature) GetProofSSk 

func (m *Signature) GetProofSSk() []byte

func (*Signature) GetRevocationEpochPk 

func (m *Signature) GetRevocationEpochPk() *ECP2

func (*Signature) GetRevocationPkSig 

func (m *Signature) GetRevocationPkSig() []byte

func (*Signature) ProtoMessage 

func (*Signature) ProtoMessage()

func (*Signature) Reset 

func (m *Signature) Reset()

func (*Signature) String 

func (m *Signature) String() string

func (*Signature) Ver 

func (sig *Signature) Ver(Disclosure []byte, ipk *IssuerPublicKey, msg []byte, attributeValues []*FP256BN.BIG, rhIndex int, revPk *ecdsa.PublicKey, epoch int) error

Ver验证IDemix签名 披露控制其期望披露的属性 attributeValues包含所需的属性值。 此函数将检查如果属性i被公开，则第i个属性等于属性值[i]。

func (*Signature) XXX_DiscardUnknown 

func (m *Signature) XXX_DiscardUnknown()

func (*Signature) XXX_Marshal 

func (m *Signature) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*Signature) XXX_Merge 

func (dst *Signature) XXX_Merge(src proto.Message)

func (*Signature) XXX_Size 

func (m *Signature) XXX_Size() int

func (*Signature) XXX_Unmarshal 

func (m *Signature) XXX_Unmarshal(b []byte) error

Source Files

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