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int blake2s_init(void **state,
const uint8_t *key,
size_t key_size,
size_t digest_size);
int blake2s_destroy(void *state);
int blake2s_update(void *state,
const uint8_t *buf,
size_t len);
int blake2s_digest(const void *state,
uint8_t digest[32]);
int blake2s_copy(const void *src, void *dst);
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S ) BLAKE2s_Hasha A BLAKE2s hash object.
Do not instantiate directly. Use the :func:`new` function.
:ivar oid: ASN.1 Object ID
:vartype oid: string
:ivar block_size: the size in bytes of the internal message block,
input to the compression function
:vartype block_size: integer
:ivar digest_size: the size in bytes of the resulting hash
:vartype digest_size: integer
c || _ || _ d| _ |dv r|sdt | z | _ t }t | t | t t | t | }|rt d|z t | t j | _ |r| | d S d S )NF) r z1.3.6.1.4.1.1722.12.2.2.z$Error %d while instantiating BLAKE2s) digest_size_update_after_digest _digest_donestroidr _raw_blake2s_lib blake2s_init
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N Cf LMM M"599;;#3#CE E KK c | j r| j st d t | j t | t t | }|rt d|z | S )zContinue hashing of a message by consuming the next chunk of data.
Args:
data (byte string/byte array/memoryview): The next chunk of the message being hashed.
z8You can only call 'digest' or 'hexdigest' on this objectz#Error %d while hashing BLAKE2s data) r r TypeErrorr blake2s_updater! r r
r r r )r# r$ r) s r* r" zBLAKE2s_Hash.updatef s XT%> X VWW W!00 1B1B1<T1B1B19#d))1D1DF F M BV KLL L r, c t d }t | j | }|rt d|z d| _ t | d| j S )zReturn the **binary** (non-printable) digest of the message that has been hashed so far.
:return: The hash digest, computed over the data processed so far.
Binary form.
:rtype: byte string
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r blake2s_digestr! r r r r r )r# bfrr) s r* digestzBLAKE2s_Hash.digestx sx #2&&!00 1B1B146 6 P E NOO O c""#4D$4#455r, c ~ d d t | D S )zReturn the **printable** digest of the message that has been hashed so far.
:return: The hash digest, computed over the data processed so far.
Hexadecimal encoded.
:rtype: string
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<listcomp>z*BLAKE2s_Hash.hexdigest.<locals>.<listcomp> s# GGGQa(GGGr, )jointupler3 )r# s r* hexdigestzBLAKE2s_Hash.hexdigest s5 wwGG%
2F2FGGGHHHr, c t d }t d|| }t d|| }| | k rt d dS )ag Verify that a given **binary** MAC (computed by another party)
is valid.
Args:
mac_tag (byte string/byte array/memoryview): the expected MAC of the message.
Raises:
ValueError: if the MAC does not match. It means that the message
has been tampered with or that the MAC key is incorrect.
r ) digest_bitsr% r$ zMAC check failedN)r newr3 r )r# mac_tagsecretmac1mac2s r* verifyzBLAKE2s_Hash.verify ss ""%%sW===sT[[]]CCC ;;==DKKMM ) ) /00 0 * )r, c d | t t | dS )an Verify that a given **printable** MAC (computed by another party)
is valid.
Args:
hex_mac_tag (string): the expected MAC of the message, as a hexadecimal string.
Raises:
ValueError: if the MAC does not match. It means that the message
has been tampered with or that the MAC key is incorrect.
N)rE r r )r# hex_mac_tags r* hexverifyzBLAKE2s_Hash.hexverify s,
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| j |d< t di |S )zQReturn a new instance of a BLAKE2s hash object.
See :func:`new`.
r& r? )r r@ )r# kwargss r* r@ zBLAKE2s_Hash.new s6
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__module__ __qualname____doc__
block_sizer+ r" r3 r< rE rH r@ rJ r, r* r r : s J 4 $6 6 6&I I I1 1 1* 5 5 5 r, r c Z | dd }| dd }| dd }| dd }d||fvrt d d||fk rd }| d
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k rn n|d z rt d |d z }| dd }t | d k rt d | r t dt | z t |||| S )a Create a new hash object.
Args:
data (byte string/byte array/memoryview):
Optional. The very first chunk of the message to hash.
It is equivalent to an early call to :meth:`BLAKE2s_Hash.update`.
digest_bytes (integer):
Optional. The size of the digest, in bytes (1 to 32). Default is 32.
digest_bits (integer):
Optional and alternative to ``digest_bytes``.
The size of the digest, in bits (8 to 256, in steps of 8).
Default is 256.
key (byte string):
Optional. The key to use to compute the MAC (1 to 64 bytes).
If not specified, no key will be used.
update_after_digest (boolean):
Optional. By default, a hash object cannot be updated anymore after
the digest is computed. When this flag is ``True``, such check
is no longer enforced.
Returns:
A :class:`BLAKE2s_Hash` hash object
r$ Nr' Fr& r? z*Only one digest parameter must be provided)NNr z!'digest_bytes' not in range 1..32 z2'digest_bits' not in range 8..256, with steps of 8r% r, z"BLAKE2s key cannot exceed 32 byteszUnknown parameters: )popr. r r r r )rK r$ r' r& r? r% s r* r@ r@ su 2 ::fd # #D **%:EBB::nd33L**]D11K L+...DEEE k222 \''''R'''' @AA A ( [''''C'''''[1_' / 0 0
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