35 lines
839 B
Go
35 lines
839 B
Go
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package Sm4
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import (
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"crypto/cipher"
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sm4 "github.com/tjfoc/gmsm/sm4"
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)
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func EncryptSM4(plainText string, key string) ([]byte, error) {
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block, err := sm4.NewCipher([]byte(key))
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if err != nil {
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return nil, err
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}
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ciphertext := make([]byte, len(plainText))
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iv := []byte("UISwD9fW6cFh9SNS") // 使用16字节的初始化向量
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mode := cipher.NewCBCEncrypter(block, iv)
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mode.CryptBlocks(ciphertext, []byte(plainText))
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return ciphertext, nil
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}
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func DecryptSM4(ciphertext string, key string) ([]byte, error) {
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block, err := sm4.NewCipher([]byte(key))
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if err != nil {
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return nil, err
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}
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plaintext := make([]byte, len(ciphertext))
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iv := []byte("UISwD9fW6cFh9SNS") // 使用与加密相同的初始化向量
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mode := cipher.NewCBCDecrypter(block, iv)
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mode.CryptBlocks(plaintext, []byte(ciphertext))
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return plaintext, nil
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}
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