Function rsa_long_encrypt

apps/common/utils/rsa_util.py:100–124

超长文本加密 :param message: 需要加密的字符串 :param public_key 公钥 :param length: 1024bit的证书用100, 2048bit的证书用 200 :return: 加密后的数据

(message, public_key: str | None = None, length=200)

def rsa_long_encrypt(message, public_key: str | None = None, length=200):
    """
    超长文本加密

    :param message:         需要加密的字符串
    :param public_key   公钥
    :param length:      1024bit的证书用100, 2048bit的证书用 200
    :return: 加密后的数据
    """
    if public_key is None:
        public_key = get_key_pair().get('key')

    cipher = _get_encrypt_cipher(public_key)

    if len(message) <= length:
        result = base64.b64encode(cipher.encrypt(message.encode('utf-8')))
    else:
        rsa_text = []
        for i in range(0, len(message), length):
            cont = message[i:i + length]
            rsa_text.append(cipher.encrypt(cont.encode('utf-8')))
        cipher_text = b''.join(rsa_text)
        result = base64.b64encode(cipher_text)

    return result.decode()


@lru_cache(maxsize=2)