package rsa

import "fmt"

type UnableToGenerateKeyPairError struct {
	err error
}

func (e *UnableToGenerateKeyPairError) Error() string {
	return fmt.Sprintf("未能生成密钥对, %s", e.err)
}

type AbsentPrivateKeyError struct{}

func (e *AbsentPrivateKeyError) Error() string {
	return "缺少私钥"
}

type AbsentPublicKeyError struct{}

func (e *AbsentPublicKeyError) Error() string {
	return "缺少公钥"
}

type EncryptionError struct {
	err error
}

func (e *EncryptionError) Error() string {
	return fmt.Sprintf("加密失败, %s", e.err)
}

type DecryptionError struct {
	err error
}

func (e *DecryptionError) Error() string {
	return fmt.Sprintf("解密失败, %s", e.err)
}

type KeyNotFoundError struct{}

func (e *KeyNotFoundError) Error() string {
	return "找不到密钥"
}

type InvalidSignMethodError struct{}

func (e *InvalidSignMethodError) Error() string {
	return "无效的签名方法"
}

type SignError struct {
	err error
}

func (e *SignError) Error() string {
	return fmt.Sprintf("签名失败, %s", e.err)
}

type VerifyError struct {
	err error
}

func (e *VerifyError) Error() string {
	return fmt.Sprintf("验证失败, %s", e.err)
}