x509.py 文件源码

def _decode_invalidity_date(backend, inv_date):
    generalized_time = backend._ffi.cast(
        "ASN1_GENERALIZEDTIME *", inv_date
    )
    generalized_time = backend._ffi.gc(
        generalized_time, backend._lib.ASN1_GENERALIZEDTIME_free
    )
    time = backend._ffi.string(
        backend._lib.ASN1_STRING_data(
            backend._ffi.cast("ASN1_STRING *", generalized_time)
        )
    ).decode("ascii")
    return datetime.datetime.strptime(time, "%Y%m%d%H%M%SZ")