/opt/imunify360/venv/lib/python3.11/site-packages/Crypto/Signature/__pycache__
Edit: /opt/imunify360/venv/lib/python3.11/site-packages/Crypto/Signature/__pycache__/DSS.cpython-311.pyc (18245B)
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long_to_bytes)Integer)HMAC)EccKey)DsaKey DssSigSchemenewc 6 e Zd ZdZd Zd Zd Zd Zd Zd Z dS ) r zkA (EC)DSA signature object.
Do not instantiate directly.
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c || _ || _ || _ | j | _ | j dz
dz dz | _ dS )zCreate a new Digital Signature Standard (DSS) object.
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|| } j dk r"d fd|D }n!t | }|S )a Compute the DSA/ECDSA signature of a message.
Args:
msg_hash (hash object):
The hash that was carried out over the message.
The object belongs to the :mod:`Crypto.Hash` package.
Under mode ``'fips-186-3'``, the hash must be a FIPS
approved secure hash (SHA-2 or SHA-3).
:return: The signature as ``bytes``
:raise ValueError: if the hash algorithm is incompatible to the (EC)DSA key
:raise TypeError: if the (EC)DSA key has no private half
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r c | | st d | j dk rVt | d| j z k rt d d |d| j || j d fD \ }}n t |d }n$# t t f$ r t d w xY wt | dk s| st d
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|||f }|st d dS )a Check if a certain (EC)DSA signature is authentic.
Args:
msg_hash (hash object):
The hash that was carried out over the message.
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Under mode ``'fips-186-3'``, the hash must be a FIPS
approved secure hash (SHA-2 or SHA-3).
signature (``bytes``):
The signature that needs to be validated.
:raise ValueError: if the signature is not authentic
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< < < ' ' ' B B BB B B+ + +Z* * * * *r c < e Zd Z fdZd Zd Zd Zd Zd Z xZ S )DeterministicDsaSigSchemec j t t | ||| || _ d S N)superrQ r _private_key)r r r r private_key __class__s r r z"DeterministicDsaSigScheme.__init__ s4
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z }|S )zSee 2.3.2 in RFC6979r )r r3 r r rA )r bstrrJ q_lenb_lens r _bits2intz#DeterministicDsaSigScheme._bits2int sR #D)) ((**D A
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r c X d|cxk r | j k sn J t || j S )zSee 2.3.3 in RFC6979r )r r r )r int_mod_qs r _int2octetsz%DeterministicDsaSigScheme._int2octets s> 9****t{****** Y(9:::r c | | }|| j k r|}n
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