o ˷e@sdZddlmZddlmZddlmZddlmZddl m Z ddl Z ddl Z ddl mZdd lmZd Zd Zd Zd Ze ZddZGdddejZGdddejejZdS)zPure-Python RSA cryptography implementation. Uses the ``rsa``, ``pyasn1`` and ``pyasn1_modules`` packages to parse PEM files storing PKCS#1 or PKCS#8 keys as well as certificates. There is no support for p12 files. )absolute_import)decoder)pem) Certificate)PrivateKeyInfoN)_helpers)base)@ s-----BEGIN CERTIFICATE-----)z-----BEGIN RSA PRIVATE KEY-----z-----END RSA PRIVATE KEY-----)z-----BEGIN PRIVATE KEY-----z-----END PRIVATE KEY-----cCsbt|}t}tjd|dD]}|||d}tddtjt|D}||qt |S)zConverts an iterable of 1s and 0s to bytes. Combines the list 8 at a time, treating each group of 8 bits as a single byte. Args: bit_list (Sequence): Sequence of 1s and 0s. Returns: bytes: The decoded bytes. rr css|] \}}||VqdSN).0valdigitrrT/var/www/ideatree/venv/lib/python3.10/site-packages/google/auth/crypt/_python_rsa.py 9sz%_bit_list_to_bytes..) len bytearraysixmovesxrangesumzip_POW2appendbytes)bit_listnum_bits byte_valsstart curr_bitschar_valrrr_bit_list_to_bytes)s  r(c@s8eZdZdZddZeejddZ e ddZ dS) RSAVerifierzVerifies RSA cryptographic signatures using public keys. Args: public_key (rsa.key.PublicKey): The public key used to verify signatures. cCs ||_dSr)_pubkey)self public_keyrrr__init__Fs zRSAVerifier.__init__c Cs<t|}z tj|||jWSttjjfyYdSw)NF)rto_bytesrsapkcs1verifyr* ValueErrorVerificationError)r+message signaturerrrr1Is zRSAVerifier.verifyc Cst|}t|v}|rs  r)c@sTeZdZdZd ddZeeej ddZ eej ddZ e d d d Z dS) RSASignera?Signs messages with an RSA private key. Args: private_key (rsa.key.PrivateKey): The private key to sign with. key_id (str): Optional key ID used to identify this private key. This can be useful to associate the private key with its associated public key or certificate. NcCs||_||_dSr)_key_key_id)r+ private_keykey_idrrrr-|s zRSASigner.__init__cCs|jSr)rW)r+rrrrYszRSASigner.key_idcCst|}tj||jdS)NzSHA-256)rr.r/r0signrV)r+r4rrrrZs zRSASigner.signc Cst|}tt|tt\}}|dkrtj j j |dd}n+|dkrFt j |td\}}|dkr5td||d}tj j j |dd}ntd |||d S) aConstruct an Signer instance from a private key in PEM format. Args: key (str): Private key in PEM format. key_id (str): An optional key id used to identify the private key. Returns: google.auth.crypt.Signer: The constructed signer. Raises: ValueError: If the key cannot be parsed as PKCS#1 or PKCS#8 in PEM format. rr>)formatrr7r9r: privateKeyzNo key could be detected.)rY)r from_bytesrreadPemBlocksFromFilerStringIO _PKCS1_MARKER _PKCS8_MARKERr/key PrivateKeyrDrrB _PKCS8_SPECr2getComponentByNameasOctets) rErbrY marker_idrKrXkey_inforIprivate_key_inforrrrMs     zRSASigner.from_stringr)rNrOrPrQr-propertyrrRrSignerrYrZrTrMrrrrrUrs     rU)rQ __future__rpyasn1.codec.derrpyasn1_modulesrpyasn1_modules.rfc2459rpyasn1_modules.rfc5208rr/r google.authrgoogle.auth.cryptrrr@r`rardr(rSr)rkFromServiceAccountMixinrUrrrrs$       4