AES解密


JAVA

/** * 解密 * * @return */ public static byte[] decrypt(byte[] data, byte[] key) { if (key.length != 16) { throw new RuntimeException("Invalid AES key length (must be 16 bytes)"); } try { SecretKeySpec secretKey = new SecretKeySpec(key, "AES"); byte[] enCodeFormat = secretKey.getEncoded(); SecretKeySpec seckey = new SecretKeySpec(enCodeFormat, "AES"); Cipher cipher = Cipher.getInstance(AES_ALGORITHM);// 创建密码器 cipher.init(Cipher.DECRYPT_MODE, seckey);// 初始化 return cipher.doFinal(data); // 加密 } catch (Exception e) { throw new RuntimeException("decrypt fail!", e); } } public static String encryptToBase64(String data, String key) { try { byte[] valueByte = encrypt(data.getBytes(CHAR_ENCODING), key.getBytes(CHAR_ENCODING)); return com.upay.sdk.crypto.codec.Base64.encode(valueByte); } catch (UnsupportedEncodingException e) { throw new RuntimeException("encrypt fail!", e); } } public static String decryptFromBase64(String data, String key) { try { byte[] originalData = com.upay.sdk.crypto.codec.Base64.decode(data); byte[] valueByte = decrypt(originalData, key.getBytes(CHAR_ENCODING)); return new String(valueByte, CHAR_ENCODING); } catch (UnsupportedEncodingException e) { throw new RuntimeException("decrypt fail!", e); } }

PHP

/* * AES解密 * */ $date = base64_decode($data['data']); $screct_key = $decrypted; $iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128,MCRYPT_MODE_ECB),MCRYPT_RAND); $encrypt_str = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $screct_key, $date, MCRYPT_MODE_ECB, $iv); $encrypt_str = preg_replace('/[\x00-\x1F]/','', $encrypt_str); $encrypt_str = json_decode($encrypt_str,true);

C#

public static string Encrypt(string plainText, string aesKey) { byte[] keyArray = UTF8Encoding.UTF8.GetBytes(aesKey); byte[] toEncryptArray = UTF8Encoding.UTF8.GetBytes(plainText); RijndaelManaged rDel = new RijndaelManaged(); rDel.Key = keyArray; rDel.Mode = CipherMode.ECB; rDel.Padding = PaddingMode.PKCS7; ICryptoTransform cTransform = rDel.CreateEncryptor(); byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length); return Convert.ToBase64String(resultArray, 0, resultArray.Length); }

GOLang

// AES/ECB/PKCS7模式解密--签名解密方式 func AesECBDecrypt(data string, key string) (string, error) { newKey := []byte(key) dataByte,err := base64.StdEncoding.DecodeString(data) if err != nil { return "", err } block, err := aes.NewCipher(newKey) if err != nil { return "", err } ecb := NewECBDecryptEr(block) retData := make([]byte, len(dataByte)) ecb.CryptBlocks(retData, dataByte) // 解PKCS7填充 retData = PKCS7UnPadding(retData) return string(retData), nil } // PKCS7解填充/和PKCS5填充一样,只是填充字段多少的区别 func PKCS7UnPadding(encrypt []byte) []byte { length := len(encrypt) unPadding := int(encrypt[length-1]) return encrypt[:(length - unPadding)] } // ecb解密方法 type ecbDecryptEr ecb func NewECBDecryptEr(b cipher.Block) cipher.BlockMode { return (*ecbDecryptEr)(newECB(b)) } func (x *ecbDecryptEr) BlockSize() int { return x.blockSize } func (x *ecbDecryptEr) CryptBlocks(dst, src []byte) { if len(src)%x.blockSize != 0 { panic("crypto/cipher: input not full blocks") } if len(dst) < len(src) { panic("crypto/cipher: output smaller than input") } for len(src) > 0 { x.b.Decrypt(dst, src[:x.blockSize]) src = src[x.blockSize:] dst = dst[x.blockSize:] } }

Python

aes_de.decrypt(base64.decodebytes(bytes(encryptKeyjson, encoding='utf8'))).rstrip(b'\0')