alibabacloud_oss_v2.crypto package

Submodules

alibabacloud_oss_v2.crypto.aes_ctr module

class alibabacloud_oss_v2.crypto.aes_ctr.FileLikeEncryptor(reader: Any, cipher_data: CipherData, offset: int)[source]

Bases: object

File Like Encryptor

read(n: int = -1) → AnyStr[source]
Parameters:

n (int, optional) – _description_. Defaults to -1.

Returns:

_description_

Return type:

AnyStr

seek(offset: int, whence: int = 0) → int[source]
Parameters:

  • offset (int) – _description_

  • whence (int, optional) – _description_. Defaults to 0.

Returns:

_description_

Return type:

int

tell() → int[source]
class alibabacloud_oss_v2.crypto.aes_ctr.IterableEncryptor(iterable: Iterable, cipher_data: CipherData, counter: int)[source]

Bases: object

Iterable Encryptor

class alibabacloud_oss_v2.crypto.aes_ctr.IteratorEncryptor(iterator: Iterator, cipher_data: CipherData, counter: int)[source]

Bases: object

Iterator Encryptor

class alibabacloud_oss_v2.crypto.aes_ctr.StreamBodyDecryptor(stream: StreamBody, cipher_data: CipherData, counter: int)[source]

Bases: StreamBody

Stream Body Decryptor

close() → None[source]

close the stream

property content: bytes

Content of the stream, in bytes.

Return type:

bytes

Returns:

The stream’s content in bytes.

property is_closed: bool

Whether the stream has been closed yet.

Return type:

bool

Returns:

Whether the stream has been closed yet.

property is_stream_consumed: bool

Whether the stream has been consumed.

Return type:

bool

Returns:

Whether the stream has been consumed.

iter_bytes(**kwargs: Any) → Iterator[bytes][source]

Iterates over the stream’s bytes. Will decompress in the process.

Returns:

An iterator of bytes from the stream

Return type:

Iterator[str]

read() → bytes[source]

Read the stream’s bytes.

Returns:

The read in bytes

Return type:

bytes

alibabacloud_oss_v2.crypto.aes_ctr_cipher module

class alibabacloud_oss_v2.crypto.aes_ctr_cipher.AESCtrCipherBuilder(master_cipher: MasterCipher)[source]

Bases: ContentCipherBuilder

AES Ctr Cipher Builder

Parameters:

ContentCipherBuilder (_type_) – _description_

content_cipher() → ContentCipher[source]

content cipher

content_cipher_from_env(env: Envelope, **kwargs) → ContentCipher[source]

content cipher from env

get_mat_desc() → str[source]

get mat desc

alibabacloud_oss_v2.crypto.cipher module

class alibabacloud_oss_v2.crypto.cipher.Cipher[source]

Bases: Encrypter, Decrypter

class alibabacloud_oss_v2.crypto.cipher.Decrypter[source]

Bases: ABC

Decrypter is interface with only decrypt method

abstract decrypt(reader: Any) → Any[source]
class alibabacloud_oss_v2.crypto.cipher.Encrypter[source]

Bases: ABC

Encrypter is interface with only encrypt method

abstract encrypt(reader: Any) → Any[source]

alibabacloud_oss_v2.crypto.master_rsa_cipher module

class alibabacloud_oss_v2.crypto.master_rsa_cipher.MasterRsaCipher(mat_desc: Dict | None = None, public_key: str | None = None, private_key: str | None = None)[source]

Bases: MasterCipher

MasterRsaCipher implements rsa master key interface

decrypt(data: bytes) → bytes[source]

decrypt data

encrypt(data: bytes) → bytes[source]

encrypt data

get_mat_desc() → str[source]

get mat desc

get_wrap_algorithm() → str[source]

get wrap algorithm

alibabacloud_oss_v2.crypto.types module

class alibabacloud_oss_v2.crypto.types.CipherData(iv: bytes = None, key: bytes = None, encrypted_iv: bytes = None, encrypted_key: bytes = None, mat_desc: str = None, wrap_algorithm: str = None, cek_algorithm: str = None)[source]

Bases: object

CipherData is secret key information.

clone() → CipherData[source]
Returns:

_description_

Return type:

CipherData

random_key_iv()[source]

random key iv

class alibabacloud_oss_v2.crypto.types.ContentCipher[source]

Bases: ABC

Base abstract base class to encrypt or decrpt object’s data

abstract clone(**kwargs) → ContentCipher[source]
abstract decrypt_content(data: Any) → Any[source]

decrypt content

abstract encrypt_content(data: Any) → Any[source]

encrypt content

abstract get_align_len() → int[source]

get align len

abstract get_cipher_data() → CipherData[source]

get cipher data

abstract get_encrypted_len(plain_text_len: int) → int[source]

get encrypted len

class alibabacloud_oss_v2.crypto.types.ContentCipherBuilder[source]

Bases: ABC

Base abstract base class to create ContentCipher

abstract content_cipher() → ContentCipher[source]

content cipher

abstract content_cipher_from_env(env: Envelope, **kwargs) → ContentCipher[source]

content cipher from env

abstract get_mat_desc() → str[source]

get mat desc

class alibabacloud_oss_v2.crypto.types.Envelope(iv: bytes | None = None, cipher_key: bytes | None = None, mat_desc: str | None = None, wrap_algorithm: str | None = None, cek_algorithm: str | None = None, unencrypted_md5: str | None = None, unencrypted_content_length: str | None = None)[source]

Bases: object

Envelope is stored in object’s meta

is_valid() → bool[source]

is valid

Returns:

_description_

Return type:

bool

random_key_iv()[source]

random key iv

class alibabacloud_oss_v2.crypto.types.MasterCipher[source]

Bases: ABC

Base abstract base class to encrypt or decrpt CipherData

abstract decrypt(data: bytes) → bytes[source]

decrypt data

abstract encrypt(data: bytes) → bytes[source]

encrypt data

abstract get_mat_desc() → str[source]

get mat desc

abstract get_wrap_algorithm() → str[source]

get wrap algorithm

Module contents