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encryption.go
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encryption.go
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package rsa
import (
"errors"
"crypto/rsa"
"crypto/rand"
"github.com/deatil/go-cryptobin/tool"
)
// 公钥加密
func (this Rsa) Encrypt() Rsa {
if this.publicKey == nil {
err := errors.New("Rsa: publicKey error.")
return this.AppendError(err)
}
paredData, err := pubKeyByte(this.publicKey, this.data, true)
if err != nil {
return this.AppendError(err)
}
this.paredData = paredData
return this
}
// 私钥解密
func (this Rsa) Decrypt() Rsa {
if this.privateKey == nil {
err := errors.New("Rsa: privateKey error.")
return this.AppendError(err)
}
paredData, err := priKeyByte(this.privateKey, this.data, false)
if err != nil {
return this.AppendError(err)
}
this.paredData = paredData
return this
}
// ====================
// 私钥加密
func (this Rsa) PriKeyEncrypt() Rsa {
if this.privateKey == nil {
err := errors.New("Rsa: privateKey error.")
return this.AppendError(err)
}
paredData, err := priKeyByte(this.privateKey, this.data, true)
if err != nil {
return this.AppendError(err)
}
this.paredData = paredData
return this
}
// 公钥解密
func (this Rsa) PubKeyDecrypt() Rsa {
if this.publicKey == nil {
err := errors.New("Rsa: publicKey error.")
return this.AppendError(err)
}
paredData, err := pubKeyByte(this.publicKey, this.data, false)
if err != nil {
return this.AppendError(err)
}
this.paredData = paredData
return this
}
// ====================
// OAEP公钥加密
func (this Rsa) EncryptOAEP(typ ...string) Rsa {
if this.publicKey == nil {
err := errors.New("Rsa: publicKey error.")
return this.AppendError(err)
}
hashType := "SHA1"
if len(typ) > 0 {
hashType = typ[0]
}
newHash, err := tool.GetHash(hashType)
if err != nil {
return this.AppendError(err)
}
paredData, err := rsa.EncryptOAEP(newHash(), rand.Reader, this.publicKey, this.data, nil)
if err != nil {
return this.AppendError(err)
}
this.paredData = paredData
return this
}
// OAEP私钥解密
func (this Rsa) DecryptOAEP(typ ...string) Rsa {
if this.privateKey == nil {
err := errors.New("Rsa: privateKey error.")
return this.AppendError(err)
}
hashType := "SHA1"
if len(typ) > 0 {
hashType = typ[0]
}
newHash, err := tool.GetHash(hashType)
if err != nil {
return this.AppendError(err)
}
paredData, err := rsa.DecryptOAEP(newHash(), rand.Reader, this.privateKey, this.data, nil)
if err != nil {
return this.AppendError(err)
}
this.paredData = paredData
return this
}