he (ddlmZddlmZdZdZy)) long_to_bytes)EccKeyc|j|jz}|jr tdt |j |j }|S)NzInvalid ECDH point)pointQdis_point_at_infinity ValueErrorrx size_in_bytes)key_privkey_pubpointPzs ]/var/www/html/retail-simulation-api/retail/lib/python3.12/site-packages/Crypto/Protocol/DH.py _compute_ecdhrsJ ^^hjj (F ""$-..fhh 4 4 67A Hc |jdd}|jdd}|jdd}|jdd}|jdd}| tdd}d}d}d } || ||dd }|d z }|| ||dd }|d z }|| ||dd }|d z }|| ||dd }|d z }||zd ks |dk(s|dk(r tdd} d} |r|r t||} |r1|r/t|t|k7r tdt||} n!|r|r t||} n|r|r t||} | | z} || S)aPerform a Diffie-Hellman key agreement. Keywords: kdf (callable): A key derivation function that accepts ``bytes`` as input and returns ``bytes``. static_priv (EccKey): The local static private key. Optional. static_pub (EccKey): The static public key that belongs to the peer. Optional. eph_priv (EccKey): The local ephemeral private key, generated for this session. Optional. eph_pub (EccKey): The ephemeral public key, received from the peer for this session. Optional. At least two keys must be passed, of which one is a private key and one a public key. Returns (bytes): The derived secret key material. static_privN static_pubeph_priveph_pubkdfz'kdf' is mandatoryrct|tstd|z|r|jstd|z||j}|S||jk7rtd|z|S)Nz'%s' must be an ECC keyz'%s' must be a private ECC keyz('%s' is defined on an incompatible curve) isinstancer TypeError has_privatecurve)rkeynameprivates r check_curvez"key_agreement..check_curve2ss#v&5<= = 3??,a E7Iu=Q Y!#zQ)q.BCC B Bz ; 3G  Z 0 0AB B 8W - j 8Z 0 [ ; 0 RA q6MrN)Crypto.Util.numberrCrypto.PublicKey.ECCrrr,rrr0s,' Wr