o gJ@s<ddlmZddlZddlZddlmZddlmZej j Z ej j Z ej jZej jZej jZej jZe dZej jZej jZej jZej jZej jZ ej j!Z"ej j#Z$ej j%Z&ej j'Z(ej j)Z*de$Z+de&Z,e(e*ej-j.fde/de0d e0d e/d e/d ej-j1d e0fddZ2e$e&fde0d e/d e/d e0fddZ3de0de0d e4fddZ5dS))castN) exceptions)ensuresizepasswordsaltopslimitmemlimitencoderreturnc Cszttdtjdtt|tkdtt|ftjdtj ||\}}}|d} | tjj ||t t d|||| |dS)al Derive a ``size`` bytes long key from a caller-supplied ``password`` and ``salt`` pair using the scryptsalsa208sha256 memory-hard construct. the enclosing module provides the constants - :py:const:`.OPSLIMIT_INTERACTIVE` - :py:const:`.MEMLIMIT_INTERACTIVE` - :py:const:`.OPSLIMIT_SENSITIVE` - :py:const:`.MEMLIMIT_SENSITIVE` - :py:const:`.OPSLIMIT_MODERATE` - :py:const:`.MEMLIMIT_MODERATE` as a guidance for correct settings respectively for the interactive login and the long term key protecting sensitive data use cases. :param size: derived key size, must be between :py:const:`.BYTES_MIN` and :py:const:`.BYTES_MAX` :type size: int :param password: password used to seed the key derivation procedure; it length must be between :py:const:`.PASSWD_MIN` and :py:const:`.PASSWD_MAX` :type password: bytes :param salt: **RANDOM** salt used in the key derivation procedure; its length must be exactly :py:const:`.SALTBYTES` :type salt: bytes :param opslimit: the time component (operation count) of the key derivation procedure's computational cost; it must be between :py:const:`.OPSLIMIT_MIN` and :py:const:`.OPSLIMIT_MAX` :type opslimit: int :param memlimit: the memory occupation component of the key derivation procedure's computational cost; it must be between :py:const:`.MEMLIMIT_MIN` and :py:const:`.MEMLIMIT_MAX` :type memlimit: int :rtype: bytes :raises nacl.exceptions.UnavailableError: If called when using a minimal build of libsodium. .. versionadded:: 1.2 Not available in minimal buildraisingz.The salt must be exactly %s, not %s bytes longi)maxmemdklen)r AVAILABLEexcUnavailableErrorlen SALTBYTES ValueErrornaclbindings nacl_bindings_pick_scrypt_paramsencode%crypto_pwhash_scryptsalsa208sha256_llrint) rrr r r r n_log2rprr#=/usr/local/lib/python3.10/dist-packages/nacl/pwhash/scrypt.pykdf;s69    r%cCs ttdtjdtj|||S)a$ Hashes a password with a random salt, using the memory-hard scryptsalsa208sha256 construct and returning an ascii string that has all the needed info to check against a future password The default settings for opslimit and memlimit are those deemed correct for the interactive user login case. :param bytes password: :param int opslimit: :param int memlimit: :rtype: bytes :raises nacl.exceptions.UnavailableError: If called when using a minimal build of libsodium. .. versionadded:: 1.2 rr)rrrrrr&crypto_pwhash_scryptsalsa208sha256_str)rr r r#r#r$strsr' password_hashcCs>ttdtjdtt|tkdtjjtj dtj ||S)aW Takes the output of scryptsalsa208sha256 and compares it against a user provided password to see if they are the same :param password_hash: bytes :param password: bytes :rtype: boolean :raises nacl.exceptions.UnavailableError: If called when using a minimal build of libsodium. .. versionadded:: 1.2 rrz/The password hash must be exactly %s bytes long) rrrrr PWHASH_SIZErr+crypto_pwhash_scryptsalsa208sha256_STRBYTESr-crypto_pwhash_scryptsalsa208sha256_str_verify)r(rr#r#r$verifys  r,)6typingr nacl.bindingsr nacl.encodingrrnacl.exceptionsrrr*_strbytes_plus_one&has_crypto_pwhash_scryptsalsa208sha256r,crypto_pwhash_scryptsalsa208sha256_STRPREFIX STRPREFIX,crypto_pwhash_scryptsalsa208sha256_SALTBYTESr-crypto_pwhash_scryptsalsa208sha256_PASSWD_MIN PASSWD_MIN-crypto_pwhash_scryptsalsa208sha256_PASSWD_MAX PASSWD_MAXr),crypto_pwhash_scryptsalsa208sha256_BYTES_MIN BYTES_MIN,crypto_pwhash_scryptsalsa208sha256_BYTES_MAX BYTES_MAX/crypto_pwhash_scryptsalsa208sha256_MEMLIMIT_MIN MEMLIMIT_MIN/crypto_pwhash_scryptsalsa208sha256_MEMLIMIT_MAX MEMLIMIT_MAX/crypto_pwhash_scryptsalsa208sha256_OPSLIMIT_MIN OPSLIMIT_MIN/crypto_pwhash_scryptsalsa208sha256_OPSLIMIT_MAX OPSLIMIT_MAX7crypto_pwhash_scryptsalsa208sha256_OPSLIMIT_INTERACTIVEOPSLIMIT_INTERACTIVE7crypto_pwhash_scryptsalsa208sha256_MEMLIMIT_INTERACTIVEMEMLIMIT_INTERACTIVE5crypto_pwhash_scryptsalsa208sha256_OPSLIMIT_SENSITIVEOPSLIMIT_SENSITIVE5crypto_pwhash_scryptsalsa208sha256_MEMLIMIT_SENSITIVEMEMLIMIT_SENSITIVEOPSLIMIT_MODERATEMEMLIMIT_MODERATEencoding RawEncoderrbytesEncoderr%r'boolr,r#r#r#r$st    ] !