README
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sm2rsign
Ring Signature Schemes Based on SM2 Digital Signature Algorithm
本实验性实现基于SM2数字签名算法的环签名方案，参考资料：
- 基于SM2数字签名算法的环签名方案
- 基于SM2密码算法的环签名方案的研究与设计，这篇文章错漏之处比较多，并且也没说明对参与者（非签名者）产生r的方法纯粹是为了靠sm2签名算法，还是有其它考虑。
其实这两个方案除了签名参与者的随机数生成方式不同，其它没有区别。本实验性实现暂未考虑环签名的ASN.1编码。
不管是环签名还是可链接环签名，L={P1, P2, ..., Pn}的公钥顺序至关重要，直接影响签名、验签结果。如何处理成员公钥列表的变化呢？
Documentation
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Index ¶
- func Linkable(signature1, signature2 []*big.Int) bool
- func SM2ParticipantRandInt(rand io.Reader, pub *ecdsa.PublicKey, msg []byte) (*big.Int, error)
- func Sign(rand io.Reader, participantRandInt ParticipantRandInt, priv *sm2.PrivateKey, ...) ([]*big.Int, error)
- func SimpleParticipantRandInt(rand io.Reader, pub *ecdsa.PublicKey, msg []byte) (*big.Int, error)
- func Verify(pubs []*ecdsa.PublicKey, msg []byte, signature []*big.Int) bool
- type BaseLinkableSigner
- type BaseLinkableVerfier
- type LinkableSignerVariant1
- type LinkableSignerVariant2
- type LinkableVerfierVariant1
- type LinkableVerfierVariant2
- type ParticipantRandInt
- type RingSigner
- type RingVerifier
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func SM2ParticipantRandInt ¶
https://www.wangan.com/p/7fyg8kdf13655a55 完全采用了sm2签名随机数r的生成方式，只是这里我们使用的默认uid
func Sign ¶
Types ¶
type BaseLinkableSigner ¶
type BaseLinkableSigner struct {
BaseLinkableVerfier
// contains filtered or unexported fields
}
func NewBaseLinkableSigner ¶
func NewBaseLinkableSigner(privateKey *sm2.PrivateKey, pubs []*ecdsa.PublicKey) *BaseLinkableSigner
func (*BaseLinkableSigner) Sign ¶
func (signer *BaseLinkableSigner) Sign(rand io.Reader, participantRandInt ParticipantRandInt, msg []byte) ([]*big.Int, error)
type BaseLinkableVerfier ¶
type BaseLinkableVerfier struct {
// contains filtered or unexported fields
}
func NewBaseLinkableVerfier ¶
func NewBaseLinkableVerfier(pubs []*ecdsa.PublicKey) *BaseLinkableVerfier
type LinkableSignerVariant1 ¶
type LinkableSignerVariant1 struct {
LinkableVerfierVariant1
// contains filtered or unexported fields
}
func NewLinkableSignerVariant1 ¶
func NewLinkableSignerVariant1(privateKey *sm2.PrivateKey, pubs []*ecdsa.PublicKey) *LinkableSignerVariant1
func NewLinkableSignerVariant2 ¶
func NewLinkableSignerVariant2(privateKey *sm2.PrivateKey, pubs []*ecdsa.PublicKey) *LinkableSignerVariant1
func (*LinkableSignerVariant1) Sign ¶
func (signer *LinkableSignerVariant1) Sign(rand io.Reader, participantRandInt ParticipantRandInt, msg []byte) ([]*big.Int, error)
type LinkableSignerVariant2 ¶
type LinkableSignerVariant2 struct {
LinkableVerfierVariant2
// contains filtered or unexported fields
}
func (*LinkableSignerVariant2) Sign ¶
func (signer *LinkableSignerVariant2) Sign(rand io.Reader, participantRandInt ParticipantRandInt, msg []byte) ([]*big.Int, error)
type LinkableVerfierVariant1 ¶
type LinkableVerfierVariant1 struct {
// contains filtered or unexported fields
}
func NewLinkableVerfierVariant1 ¶
func NewLinkableVerfierVariant1(pubs []*ecdsa.PublicKey) *LinkableVerfierVariant1
func NewLinkableVerfierVariant2 ¶
func NewLinkableVerfierVariant2(pubs []*ecdsa.PublicKey) *LinkableVerfierVariant1
type LinkableVerfierVariant2 ¶
type LinkableVerfierVariant2 struct {
// contains filtered or unexported fields
}
type ParticipantRandInt ¶
type RingSigner ¶
Source Files
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