AES encryption in typescript decryption in Go

Question

I'm trying to encrypt data in typescript and take the encryption output the pass it to the decryption function in Go but the output in Go does not match the input in typescript so what is the problem?

This is my typescript code:

import * as CryptoJS from 'crypto-js';
var key = CryptoJS.enc.Utf8.parse('7061737323313233');
var iv = CryptoJS.enc.Utf8.parse('7061737323313233');
var encrypted = CryptoJS.AES.encrypt(CryptoJS.enc.Utf8.parse("Im new in aes encryption"), key,
    {
        keySize: 128 / 8,
        iv: iv,
        mode: CryptoJS.mode.CBC,
        padding: CryptoJS.pad.Pkcs7
    });

var decrypted = CryptoJS.AES.decrypt(encrypted, key, {
    keySize: 128 / 8,
    iv: iv,
    mode: CryptoJS.mode.CBC,
    padding: CryptoJS.pad.Pkcs7
});

console.log('Encrypted :' + encrypted);
console.log('Key :' + encrypted.key);
console.log('Salt :' + encrypted.salt);
console.log('iv :' + encrypted.iv);
console.log('Decrypted : ' + decrypted);
console.log('utf8 = ' + decrypted.toString(CryptoJS.enc.Utf8));

This is my Go code:

func main() {
    d2, _ := Decrypt("VMlk9qzp2BKZi5wZjlzst2iwEre0uD/VHVc6xm2bhXY=", "37303631373337333233333133323333")
    fmt.Println(d2)
}
// Decrypt decrypts cipher text string into plain text string
func Decrypt(encrypted string, CIPHER_KEY string) (string, error) {
    key := []byte(CIPHER_KEY)
    cipherText, _ := base64.StdEncoding.DecodeString(encrypted) ////hex.DecodeString(encrypted)

    block, err := aes.NewCipher(key)
    if err != nil {
        panic(err)
    }

    if len(cipherText) < aes.BlockSize {
        panic("cipherText too short")
    }
    iv := cipherText[:aes.BlockSize]

    cipherText = cipherText[aes.BlockSize:]
    if len(cipherText)%aes.BlockSize != 0 {
        panic("cipherText is not a multiple of the block size")
    }
    mode := cipher.NewCBCDecrypter(block, iv)
    mode.CryptBlocks(cipherText, cipherText)

    cipherText, _ = pkcs7.Pad(cipherText, aes.BlockSize)
    return fmt.Sprintf("%s", cipherText), nil
}

Answer 1

1. Please use the same key "7061737323313233".
2. Use the same iv.
3. Dec the full text.

func main() {

    d2, err := Decrypt("VMlk9qzp2BKZi5wZjlzst2iwEre0uD/VHVc6xm2bhXY=", "7061737323313233")
    if err != nil {
        log.Println(err)
        return
    }
    fmt.Println(d2)

}

// Decrypt decrypts cipher text string into plain text string
func Decrypt(encrypted string, CIPHER_KEY string) (string, error) {
    key := []byte(CIPHER_KEY)
    cipherText, _ := base64.StdEncoding.DecodeString(encrypted) ////hex.DecodeString(encrypted)

    block, err := aes.NewCipher(key)
    if err != nil {
        panic(err)
    }

    if len(cipherText) < aes.BlockSize {
        panic("cipherText too short")
    }
    // iv := cipherText[:aes.BlockSize]
    iv := []byte("7061737323313233")

    cipherText = cipherText[:]
    if len(cipherText)%aes.BlockSize != 0 {
        panic("cipherText is not a multiple of the block size")
    }

    // cipherText, _ = Pad(cipherText, aes.BlockSize)

    mode := cipher.NewCBCDecrypter(block, iv)
    mode.CryptBlocks(cipherText, cipherText)

    return fmt.Sprintf("%s", cipherText), nil
}