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34 lines
935 B
Go
34 lines
935 B
Go
package cryptokit
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import (
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"bytes"
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"crypto/aes"
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"crypto/cipher"
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"encoding/base64"
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"github.com/mizuki1412/go-core-kit/class/exception"
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)
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// Encrypt 实现 AES-CBC 加密（返回 Base64 编码结果）
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func Encrypt(plainText string) string {
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key := "1234567890123456"
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iv := "1234567890123456"
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block, err := aes.NewCipher([]byte(key))
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if err != nil {
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panic(exception.New(err.Error()))
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}
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// PKCS7 填充
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paddedText := pkcs7Padding([]byte(plainText), block.BlockSize())
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// CBC 模式加密
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blockMode := cipher.NewCBCEncrypter(block, []byte(iv))
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ciphertext := make([]byte, len(paddedText))
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blockMode.CryptBlocks(ciphertext, paddedText)
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// Base64 编码
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return base64.StdEncoding.EncodeToString(ciphertext)
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}
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func pkcs7Padding(ciphertext []byte, blockSize int) []byte {
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padding := blockSize - len(ciphertext)%blockSize
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padtext := bytes.Repeat([]byte{byte(padding)}, padding)
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return append(ciphertext, padtext...)
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}
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