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aes sample code
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| var aesjs = require('aes-js') | |
| var key = Buffer.from('abcdef1234fedcba') | |
| var iv = aesjs.utils.utf8.toBytes(key) | |
| var text = '1111222233334444' | |
| var textBytes = aesjs.utils.utf8.toBytes(text) | |
| // pkcs5 is a subset of pkcs7 | |
| var padded = aesjs.padding.pkcs7.pad(textBytes) | |
| var aesCbc = new aesjs.ModeOfOperation.cbc(iv, iv) | |
| var encryptedBytes = aesCbc.encrypt(padded); | |
| console.log(Buffer.from(encryptedBytes).toString('base64')) |
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| package main | |
| import ( | |
| "bytes" | |
| "crypto/aes" | |
| "crypto/cipher" | |
| "encoding/base64" | |
| "fmt" | |
| "net/url" | |
| ) | |
| var Key = []byte("abcdef1234fedcba") | |
| func main() { | |
| src := "1111222233334444" | |
| encrypted := AESEncrypt(src, Key) | |
| fmt.Println(url.QueryEscape(base64.StdEncoding.EncodeToString(encrypted))) | |
| decrypted := AESDecrypt(encrypted, Key) | |
| fmt.Println(string(decrypted)) | |
| } | |
| func AESEncrypt(src string, key []byte) []byte { | |
| block, err := aes.NewCipher(key) | |
| if err != nil { | |
| fmt.Println("key error1", err) | |
| } | |
| if src == "" { | |
| fmt.Println("plain content empty") | |
| } | |
| ecb := cipher.NewCBCEncrypter(block, Key) | |
| content := []byte(src) | |
| content = PKCS5Padding(content, block.BlockSize()) | |
| crypted := make([]byte, len(content)) | |
| ecb.CryptBlocks(crypted, content) | |
| return crypted | |
| } | |
| func AESDecrypt(crypt []byte, key []byte) []byte { | |
| block, err := aes.NewCipher(key) | |
| if err != nil { | |
| fmt.Println("key error1", err) | |
| } | |
| if len(crypt) == 0 { | |
| fmt.Println("plain content empty") | |
| } | |
| ecb := cipher.NewCBCDecrypter(block, Key) | |
| decrypted := make([]byte, len(crypt)) | |
| ecb.CryptBlocks(decrypted, crypt) | |
| return PKCS5Trimming(decrypted) | |
| } | |
| func PKCS5Padding(ciphertext []byte, blockSize int) []byte { | |
| padding := blockSize - len(ciphertext)%blockSize | |
| padtext := bytes.Repeat([]byte{byte(padding)}, padding) | |
| return append(ciphertext, padtext...) | |
| } | |
| func PKCS5Trimming(encrypt []byte) []byte { | |
| padding := encrypt[len(encrypt)-1] | |
| return encrypt[:len(encrypt)-int(padding)] | |
| } |
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