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AES算法。

使用方式：

import "github.com/gogf/gf/v2/crypto/gaes"

接口文档：

https://pkg.go.dev/github.com/gogf/gf/v2/crypto/gaes


温馨提示：

如果待解密数据经过其它编码，则要先解码再解密，如base64.decode

反过来也一样

如果希望加密完的数据编码，则将结果编码即可，如base64.encode

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4 Comments

  1. 黄昌淮

    ```go

    func main() {
    // g.Server().Run()



    key := []byte("1234567890123456")
    res, _ := gaes.Encrypt([]byte("shit"), key)
    fmt.Println(string(res)) //直接转换它是这样的：�8P@�qJ?n��T�Z�

    //使用encoding/hex对它进行处理下感觉会更好些
    res2 := hex.EncodeToString(res)
    fmt.Println(res2) //a63850409c714a3f6ec2ef5415ec5adf

    res3, _ := hex.DecodeString(res2)
    fmt.Println(res3) //[166 56 80 64 156 113 74 63 110 194 239 84 21 236 90 223]

    }

    ```

    1. 海亮

      原始函数是不会做这种额外处理的（保证一致性），都是按自己需求再做处理，你做hex，其它人可能做base64。

      1. 黄昌淮

        嗯嗯，多谢提醒，因为是新手有很多不懂的地方，所以就发出来抛砖引玉来了，哈哈(big grin)

  2. jiftle

    你给的aes很鸡肋，没有处理补齐问题。 分享一段代码，供参考

    package crypto

import (
	"crypto/aes"
	"crypto/cipher"
	"errors"
	//"fmt"
)

func AES_Encrypt_ECB(plain, key []byte) ([]byte, error) {
	bytCipher := make([]byte, 0)

	//fmt.Printf("plain len= %v\n", len(plain))
	cipher, err := aes.NewCipher(key)
	if err != nil {
		return nil, err
	}

	blockSize := cipher.BlockSize()
	if len(plain)%blockSize != 0 {
		return nil, errors.New("data isn't block size count!")
	}

	//fmt.Printf("blockSize: %v\n", blockSize)
	cipherLen := len(plain)
	bytCipher = make([]byte, cipherLen)
	for i := 0; i < cipherLen; i += blockSize {
		//fmt.Printf("bytCipher[%d:%d], bytPlain[%d:%d]\n", i, i+blockSize, i, i+blockSize)
		cipher.Encrypt(bytCipher[i:i+blockSize], plain[i:i+blockSize])
	}

	return bytCipher, nil
}

func AES_Decrypt_ECB(bytCipher, key []byte) ([]byte, error) {
	bytPlain := make([]byte, 0)

	cipher, err := aes.NewCipher(key)
	if err != nil {
		return nil, err
	}

	blockSize := cipher.BlockSize()
	if len(bytCipher)%blockSize != 0 {
		return nil, errors.New("data isn't block size interger count!")
	}

	cipherLen := len(bytCipher)
	bytPlain = make([]byte, cipherLen)
	for i := 0; i < cipherLen; i += blockSize {
		cipher.Decrypt(bytPlain[i:i+blockSize], bytCipher[i:i+blockSize])
	}

	return bytPlain, nil
}

// ================== CBC ========================

func AES_Encrypt_CBC(plantText, key []byte) ([]byte, error) {
	block, err := aes.NewCipher(key) 
	if err != nil {
		return nil, err
	}
	plantText = Padding_PKCS7(plantText, block.BlockSize())

	blockModel := cipher.NewCBCEncrypter(block, key)

	ciphertext := make([]byte, len(plantText))

	blockModel.CryptBlocks(ciphertext, plantText)
	return ciphertext, nil
}

func AES_Decrypt_CBC(ciphertext, key []byte) ([]byte, error) {
	keyBytes := []byte(key)
	block, err := aes.NewCipher(keyBytes) //选择加密算法
	if err != nil {
		return nil, err
	}

	length := len(ciphertext)
	if length%block.BlockSize() != 0 {
		return nil, errors.New("data invalid")
	}

	blockModel := cipher.NewCBCDecrypter(block, keyBytes)
	plantText := make([]byte, len(ciphertext))
	blockModel.CryptBlocks(plantText, ciphertext)
	plantText = UnPadding_PKCS7(plantText, block.BlockSize())
	return plantText, nil
}