decode_asn1.py 文件源码

def _decode_x509_name(backend, x509_name):
    count = backend._lib.X509_NAME_entry_count(x509_name)
    attributes = []
    prev_set_id = -1
    for x in range(count):
        entry = backend._lib.X509_NAME_get_entry(x509_name, x)
        attribute = _decode_x509_name_entry(backend, entry)
        set_id = backend._lib.Cryptography_X509_NAME_ENTRY_set(entry)
        if set_id != prev_set_id:
            attributes.append(set([attribute]))
        else:
            # is in the same RDN a previous entry
            attributes[-1].add(attribute)
        prev_set_id = set_id

    return x509.Name(x509.RelativeDistinguishedName(rdn) for rdn in attributes)