abe

package
v0.0.0-...-4c215d4 Latest Latest
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 Go to latest Published: Sep 23, 2024 License: AGPL-3.0 Imports: 11 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func AuthPubsOfPolicyJson 

func AuthPubsOfPolicyJson(policy string) string

Json API for AuthPubsOfPolicy

func Decode 

func Decode(x string) string

func DecryptJson 

func DecryptJson(ctJson string, userattrsJson string) string

Json API for Decrypt

func DecryptJson1 

func DecryptJson1(ctJson string, userattrsJson string) string

Json API for Decrypt

func DecryptJson2 

func DecryptJson2(ctJson string, userattrsJson string) string

Json API for Decrypt

func Encode 

func Encode(x string) string

func EncryptJson 

func EncryptJson(secretJson string, policy string, authpubsJson string) string

Json API for Encrypt

func EncryptJson1 

func EncryptJson1(secretJson string, secretJson1 string, policy string, authpubsJson string) string

Json API for Encrypt

func JsonObjToEncStr 

func JsonObjToEncStr(x interface{}) string

func JsonObjToStr 

func JsonObjToStr(x interface{}) string

func NewRandomAuthJson 

func NewRandomAuthJson(orgJson string) string

Json API for NewRandomAuth

func NewRandomOrgJson 

func NewRandomOrgJson(curveJson string) string

Json API for NewRandomOrg

func NewRandomSecretJson 

func NewRandomSecretJson(orgJson string) string

Json API for NewRandomSecret

func NewRandomUserkeyJson 

func NewRandomUserkeyJson(user string, attr string, authprvJson string) string

Json API for NewRandomUserkey

func PolicyOfCiphertext 

func PolicyOfCiphertext(ct *Ciphertext) string

func PolicyOfCiphertextJson 

func PolicyOfCiphertextJson(ctJson string) string

Json API extracting policy from ciphertexts

func SecretHash 

func SecretHash(secret Point) string

func SelectUserAttrsJson 

func SelectUserAttrsJson(user string, policy string, userattrsJson string) string

Json API for SelectUserAttrs

Types

type AccessPolicy 

type AccessPolicy struct {
	M    [][]int          // access policy matrix
	Vars []string         // attribute list
	Row  map[string][]int // attribute -> access policy matrix rows index
}

attributes in a given policy

type AuthKeys 

type AuthKeys struct {
	AuthPub  *AuthPub `json:"-"`
	AuthPub_ string   `json:"authpub"` // public key of the authority
	AuthPrv  *AuthPrv `json:"-"`
	AuthPrv_ string   `json:"authprv"` // private key of the authority
}

authority public and private keys

func NewAuthKeysOfJsonStr 

func NewAuthKeysOfJsonStr(xJson string) (x *AuthKeys)

func NewRandomAuth 

func NewRandomAuth(org *Org) (authkeys *AuthKeys)

new random authority

func (*AuthKeys) OfJsonObj 

func (authkeys *AuthKeys) OfJsonObj() *AuthKeys

AuthKeys type from its json representation

func (*AuthKeys) ToJsonObj 

func (authkeys *AuthKeys) ToJsonObj() *AuthKeys

AuthKeys type to its json representation

type AuthPrv 

type AuthPrv struct {
	Org    *Org     `json:"-"`
	Org_   string   `json:"org"`
	Alpha  *big.Int `json:"-"`
	Alpha_ string   `json:"alpha"`
	Y      *big.Int `json:"-"`
	Y_     string   `json:"y"`
}

authority private params

func NewAuthPrvOfJsonStr 

func NewAuthPrvOfJsonStr(xJson string) (x *AuthPrv)

func (*AuthPrv) OfJsonObj 

func (authprv *AuthPrv) OfJsonObj() *AuthPrv

AuthPrv type from its json representation

func (*AuthPrv) ToJsonObj 

func (authprv *AuthPrv) ToJsonObj() *AuthPrv

AuthPrv type to its json representation

type AuthPub 

type AuthPub struct {
	Org     *Org   `json:"-"`
	Org_    string `json:"org"`
	Ealpha  Point  `json:"-"`
	Ealpha_ string `json:"ealpha"`
	G1y     Point  `json:"-"`
	G1y_    string `json:"g1y"`
}

authority public params

func NewAuthPubOfJsonStr 

func NewAuthPubOfJsonStr(xJson string) (x *AuthPub)

func (*AuthPub) OfJsonObj 

func (authpub *AuthPub) OfJsonObj() *AuthPub

AuthPub type from its json representation

func (*AuthPub) ToJsonObj 

func (authpub *AuthPub) ToJsonObj() *AuthPub

AuthPub type to its json representation

type AuthPubs 

type AuthPubs struct {
	AuthPub  map[string]*AuthPub `json:"-"`
	AuthPub_ map[string]string   `json:"authpub"` // authority -> corresponding public key
}

map of authorities public keys

func AuthPubsOfPolicy 

func AuthPubsOfPolicy(policy string) *AuthPubs

extracts authorities from a policy string

func NewAuthPubsOfJsonStr 

func NewAuthPubsOfJsonStr(xJson string) (x *AuthPubs)

func (*AuthPubs) OfJsonObj 

func (authpubs *AuthPubs) OfJsonObj() *AuthPubs

AuthPubs type from its json representation

func (*AuthPubs) ToJsonObj 

func (authpubs *AuthPubs) ToJsonObj() *AuthPubs

AuthPubs type to its json representation

type Ciphertext 

type Ciphertext struct {
	Org     *Org                  `json:"-"`
	Org_    string                `json:"org"`
	Policy  string                `json:"-"`
	Policy_ string                `json:"policy"`
	C0      Point                 `json:"-"`
	C0_     string                `json:"c0"`
	C1      Point                 `json:"-"`
	C1_     string                `json:"c0"`
	C       map[string][][]Point  `json:"-"`
	C_      map[string][][]string `json:"c"`
}

ciphertext encrypting the msg

func Encrypt 

func Encrypt(secret Point, policy string, authpubs *AuthPubs) (ct *Ciphertext)

encrypt a secret according to a given policy the function requires the public keys of the authorities mentioned in the policy

func Encrypt1 

func Encrypt1(secret Point, secret2 Point, policy string, authpubs *AuthPubs) (ct *Ciphertext)

this is a test

func NewCiphertextOfJsonStr 

func NewCiphertextOfJsonStr(xJson string) (x *Ciphertext)

func (*Ciphertext) OfJsonObj 

func (ct *Ciphertext) OfJsonObj() *Ciphertext

Ciphertext type from its json representation

func (*Ciphertext) ToJsonObj 

func (ct *Ciphertext) ToJsonObj() *Ciphertext

Ciphertext type to its json representation

type Curve 

type Curve interface {
	ToJsonObj() Curve
	OfJsonObj() Curve
	SetSeed(seed string) Curve
	InitRng() Curve
	NewPointOn(group string) Point
	NewRandomExp() *big.Int
	NewRandomSecret(n int, zerosecret bool) []*big.Int
	NewRandomPointOn(group string) Point
	UnitOnGroup(group string) Point
	HashToGroup(x string, group string) Point
	HashToPow(x string, g Point) Point
	Inv(g1 Point) Point
	Mul(g1 Point, g2 Point) Point
	Div(g1 Point, g2 Point) Point
	Pow(g1 Point, e1 *big.Int) Point
	Pow2(g1 Point, e1 *big.Int, g2 Point, e2 *big.Int) Point
	Pow3(g1 Point, e1 *big.Int, g2 Point, e2 *big.Int, g3 Point, e3 *big.Int) Point
	Pair(g1 Point, g2 Point) Point
	ProdPair(g1 []Point, g2 []Point) Point
	// contains filtered or unexported methods
}

curve interface

func NewCurveOfJsonStr 

func NewCurveOfJsonStr(xJson string) (x Curve)

type Org 

type Org struct {
	Crv  Curve  `json:"-"`
	Crv_ string `json:"crv"`
	G1   Point  `json:"-"`
	G1_  string `json:"g1"`
	G2   Point  `json:"-"`
	G2_  string `json:"g2"`
	E    Point  `json:"-"`
	E_   string `json:"e"`
}

organization

func GetOrgFromAuthPubs 

func GetOrgFromAuthPubs(authpubs *AuthPubs) *Org

func NewOrgOfJsonStr 

func NewOrgOfJsonStr(xJson string) (x *Org)

func NewRandomOrg 

func NewRandomOrg(curve Curve) (org *Org)

new random organization

func (*Org) OfJsonObj 

func (org *Org) OfJsonObj() *Org

Org type from its json representation

func (*Org) ToJsonObj 

func (org *Org) ToJsonObj() *Org

Org type to its json representation

type Point 

type Point interface {
	ToJsonObj() Point
	OfJsonObj(curve Curve) Point
	GetP() string
	GetGroup() string
	// contains filtered or unexported methods
}

point interface

func Decrypt 

func Decrypt(ct *Ciphertext, userattrs *UserAttrs) (secret Point)

decrypt a ciphertext the function requires the list of user attributes to use and the corresponding collection of userkey

func Decrypt1 

func Decrypt1(ct *Ciphertext, userattrs *UserAttrs) (secret Point)

func Decrypt2 

func Decrypt2(ct *Ciphertext, userattrs *UserAttrs) (secret Point)

func NewPointOfJsonStr 

func NewPointOfJsonStr(xJson string) (x Point)

func NewRandomSecret 

func NewRandomSecret(org *Org) (secret Point)

new random secret

type UserAttrs 

type UserAttrs struct {
	User     string              `json:"user"`  // user
	Coeff    map[string][]int    `json:"coeff"` // attribute -> its coefficients
	Coeff2   map[string][]int    `json:"coeff"` // attribute -> its coefficients
	Userkey  map[string]*Userkey `json:"-"`
	Userkey_ map[string]string   `json:"userkey"` // attribute -> corresponding userkey
}

map of user attributes

func NewRandomUserkey 

func NewRandomUserkey(user string, attr string, authprv *AuthPrv) (userattrs *UserAttrs)

new random userkey

func NewUserAttrsOfJsonStr 

func NewUserAttrsOfJsonStr(xJson string) (x *UserAttrs)

func (*UserAttrs) Add 

func (userattrs0 *UserAttrs) Add(userattrs1 *UserAttrs) *UserAttrs

merge 2 UserAttrs

func (*UserAttrs) OfJsonObj 

func (userattrs *UserAttrs) OfJsonObj() *UserAttrs

UserAttrs type from its json representation

func (*UserAttrs) SelectUserAttrs 

func (userattrs *UserAttrs) SelectUserAttrs(user string, policy string) *UserAttrs

select user attrs relevant for a given policy string

func (*UserAttrs) ToJsonObj 

func (userattrs *UserAttrs) ToJsonObj() *UserAttrs

UserAttrs type to its json representation

type Userkey 

type Userkey struct {
	Org  *Org   `json:"-"`
	Org_ string `json:"org"`
	K    Point  `json:"-"`
	K_   string `json:"k"`
	KP   Point  `json:"-"`
	KP_  string `json:"kp"`
}

user key

func NewUserkeyOfJsonStr 

func NewUserkeyOfJsonStr(xJson string) (x *Userkey)

func (*Userkey) OfJsonObj 

func (userkey *Userkey) OfJsonObj() *Userkey

Userkey type from its json representation

func (*Userkey) ToJsonObj 

func (userkey *Userkey) ToJsonObj() *Userkey

Userkey type to its json representation

Source Files

View all Source files

Directories

Path Synopsis
miracl
core
core/BLS12381
core/BN254
core/BN462

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