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https://github.com/planetmint/planetmint.git
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d971709a79
* * **Changed** adjusted to zenroom calling convention of PRP #13 (breaking change) * **Changed** zenroom test cases to comply to the new calling convention * **Fixed** zenroom signing bug (call of wrong function) * **Changed** using cryptoconditions 0.10.0 * **Deprecated** usage of ripde160md as a address generation algorithm, isn't available from python 3.9.14 on, skipping these tests from now on. * **Changed** script/ouptut tag to be of type array or object for schema v3.0 and v2.0 * **Changed** added 'script' handling to the common/transactions.py class * **Fixed** data input handling to the transaction fullfillment methods Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com> * connected the version string in the banner of 'planetmint start' to the planetmint/version.py variables. Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com> * added input validation to the transaction script parsing and passing Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com> * added backend support for the scripts Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com> * adjusted tests to the new zenroom calling convention Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com> * blackified the code Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com> * increased version to 1.1.0 Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com> * fixed docs building issues of dependency inheritance Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com> Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com>
100 lines
2.8 KiB
Python
100 lines
2.8 KiB
Python
# Copyright © 2020 Interplanetary Database Association e.V.,
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# Planetmint and IPDB software contributors.
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# SPDX-License-Identifier: (Apache-2.0 AND CC-BY-4.0)
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# Code is Apache-2.0 and docs are CC-BY-4.0
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import base64
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import hashlib
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import json
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from binascii import hexlify
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try:
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from hashlib import sha3_256
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except ImportError:
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from sha3 import sha3_256
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def encode_transaction(value):
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"""Encode a transaction (dict) to Base64."""
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return base64.b64encode(json.dumps(value).encode("utf8")).decode("utf8")
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def decode_transaction(raw):
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"""Decode a transaction from bytes to a dict."""
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return json.loads(raw.decode("utf8"))
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def decode_transaction_base64(value):
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"""Decode a transaction from Base64."""
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return json.loads(base64.b64decode(value.encode("utf8")).decode("utf8"))
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def calculate_hash(key_list):
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if not key_list:
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return ""
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full_hash = sha3_256()
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for key in key_list:
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full_hash.update(key.encode("utf8"))
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return full_hash.hexdigest()
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def merkleroot(hashes):
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"""Computes the merkle root for a given list.
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Args:
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hashes (:obj:`list` of :obj:`bytes`): The leaves of the tree.
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Returns:
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str: Merkle root in hexadecimal form.
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"""
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# XXX TEMPORARY -- MUST REVIEW and possibly CHANGE
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# The idea here is that the UTXO SET would be empty and this function
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# would be invoked to compute the merkle root, and since there is nothing,
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# i.e. an empty list, then the hash of the empty string is returned.
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# This seems too easy but maybe that is good enough? TO REVIEW!
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if not hashes:
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return sha3_256(b"").hexdigest()
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# XXX END TEMPORARY -- MUST REVIEW ...
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if len(hashes) == 1:
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return hexlify(hashes[0]).decode()
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if len(hashes) % 2 == 1:
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hashes.append(hashes[-1])
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parent_hashes = [sha3_256(hashes[i] + hashes[i + 1]).digest() for i in range(0, len(hashes) - 1, 2)]
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return merkleroot(parent_hashes)
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# ripemd160 is only available below python 3.9.13
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@DeprecationWarning
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def public_key64_to_address(base64_public_key):
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"""Note this only compatible with Tendermint 0.19.x"""
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ed25519_public_key = public_key_from_base64(base64_public_key)
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encoded_public_key = amino_encoded_public_key(ed25519_public_key)
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return hashlib.new("ripemd160", encoded_public_key).hexdigest().upper()
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def public_key_from_base64(base64_public_key):
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return key_from_base64(base64_public_key)
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def key_from_base64(base64_key):
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return base64.b64decode(base64_key).hex().upper()
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def public_key_to_base64(ed25519_public_key):
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return key_to_base64(ed25519_public_key)
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def key_to_base64(ed25519_key):
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ed25519_key = bytes.fromhex(ed25519_key)
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return base64.b64encode(ed25519_key).decode("utf-8")
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def amino_encoded_public_key(ed25519_public_key):
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return bytes.fromhex("1624DE6220{}".format(ed25519_public_key))
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