Source code for bigframes.operations.googlesql.aead

# Copyright 2026 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# DO NOT MODIFY THIS FILE DIRECTLY.
# This file was generated from: scripts/data/sql-functions/aead.yaml
# by the script: scripts/generate_bigframes_bigquery.py

from __future__ import annotations

import datetime
import decimal
from typing import Any, Literal, Optional, TypeVar, Union

import bigframes.core.col
import bigframes.core.expression as ex
import bigframes.core.googlesql
import bigframes.core.sentinels as sentinels
import bigframes.operations as ops
import bigframes.series as series
from bigframes import dtypes
from bigframes.operations import googlesql

_DECRYPT_BYTES_OP = googlesql.GoogleSqlScalarOp(
    "AEAD.DECRYPT_BYTES",
    args=(googlesql.ArgSpec(), googlesql.ArgSpec(), googlesql.ArgSpec()),
    signature=lambda *args: dtypes.BYTES_DTYPE,
)
_DECRYPT_STRING_OP = googlesql.GoogleSqlScalarOp(
    "AEAD.DECRYPT_STRING",
    args=(googlesql.ArgSpec(), googlesql.ArgSpec(), googlesql.ArgSpec()),
    signature=lambda *args: dtypes.STRING_DTYPE,
)
_ENCRYPT_OP = googlesql.GoogleSqlScalarOp(
    "AEAD.ENCRYPT",
    args=(googlesql.ArgSpec(), googlesql.ArgSpec(), googlesql.ArgSpec()),
    signature=lambda *args: dtypes.BYTES_DTYPE,
)




def decrypt_bytes(
    keyset: Union[
        series.Series,
        bigframes.core.col.Expression,
        Union[Literal[sentinels.Sentinel.ARGUMENT_DEFAULT], bytes, dict],
    ],
    ciphertext: Union[
        series.Series,
        bigframes.core.col.Expression,
        Union[Literal[sentinels.Sentinel.ARGUMENT_DEFAULT], bytes],
    ],
    additional_data: Union[
        series.Series,
        bigframes.core.col.Expression,
        Union[Literal[sentinels.Sentinel.ARGUMENT_DEFAULT], bytes],
    ],
) -> Union[series.Series, bigframes.core.col.Expression]:
    """Uses the matching key from keyset to decrypt ciphertext and verifies the integrity of the data using additional_data. Returns an error if decryption or verification fails."""
    return bigframes.core.googlesql.apply_googlesql_scalar_op(
        _DECRYPT_BYTES_OP,
        keyset,
        ciphertext,
        additional_data,
    )





def decrypt_string(
    keyset: Union[
        series.Series,
        bigframes.core.col.Expression,
        Union[Literal[sentinels.Sentinel.ARGUMENT_DEFAULT], bytes, dict],
    ],
    ciphertext: Union[
        series.Series,
        bigframes.core.col.Expression,
        Union[Literal[sentinels.Sentinel.ARGUMENT_DEFAULT], bytes],
    ],
    additional_data: Union[
        series.Series,
        bigframes.core.col.Expression,
        Union[Literal[sentinels.Sentinel.ARGUMENT_DEFAULT], str],
    ],
) -> Union[series.Series, bigframes.core.col.Expression]:
    """Like AEAD.DECRYPT_BYTES, but where additional_data is of type STRING."""
    return bigframes.core.googlesql.apply_googlesql_scalar_op(
        _DECRYPT_STRING_OP,
        keyset,
        ciphertext,
        additional_data,
    )





def encrypt(
    keyset: Union[
        series.Series,
        bigframes.core.col.Expression,
        Union[Literal[sentinels.Sentinel.ARGUMENT_DEFAULT], bytes, dict],
    ],
    plaintext: Union[
        series.Series,
        bigframes.core.col.Expression,
        Union[Literal[sentinels.Sentinel.ARGUMENT_DEFAULT], bytes, str],
    ],
    additional_data: Union[
        series.Series,
        bigframes.core.col.Expression,
        Union[Literal[sentinels.Sentinel.ARGUMENT_DEFAULT], bytes, str],
    ],
) -> Union[series.Series, bigframes.core.col.Expression]:
    """Encrypts plaintext using the primary cryptographic key in keyset. The algorithm of the primary key must be AEAD_AES_GCM_256. Binds the ciphertext to the context defined by additional_data. Returns NULL if any input is NULL."""
    return bigframes.core.googlesql.apply_googlesql_scalar_op(
        _ENCRYPT_OP,
        keyset,
        plaintext,
        additional_data,
    )