chore: code clean-up

nostr/client/cbc.py

@@ -1,41 +0,0 @@
-
-from Cryptodome import Random
-from Cryptodome.Cipher import AES
-
-plain_text = "This is the text to encrypts"
-
-# encrypted = "7mH9jq3K9xNfWqIyu9gNpUz8qBvGwsrDJ+ACExdV1DvGgY8q39dkxVKeXD7LWCDrPnoD/ZFHJMRMis8v9lwHfNgJut8EVTMuJJi8oTgJevOBXl+E+bJPwej9hY3k20rgCQistNRtGHUzdWyOv7S1tg==".encode()
-# iv = "GzDzqOVShWu3Pl2313FBpQ==".encode()
-
-key = bytes.fromhex("3aa925cb69eb613e2928f8a18279c78b1dca04541dfd064df2eda66b59880795")
-
-BLOCK_SIZE = 16
-
-class AESCipher(object):
-    """This class is compatible with crypto.createCipheriv('aes-256-cbc')
-
-    """
-    def __init__(self, key=None):
-        self.key = key
-
-    def pad(self, data):
-        length = BLOCK_SIZE - (len(data) % BLOCK_SIZE)
-        return data + (chr(length) * length).encode()
-
-    def unpad(self, data):
-        return data[: -(data[-1] if type(data[-1]) == int else ord(data[-1]))]
-
-    def encrypt(self, plain_text):
-        cipher = AES.new(self.key, AES.MODE_CBC)
-        b = plain_text.encode("UTF-8")
-        return cipher.iv, cipher.encrypt(self.pad(b))
-
-    def decrypt(self, iv, enc_text):
-        cipher = AES.new(self.key, AES.MODE_CBC, iv=iv)
-        return self.unpad(cipher.decrypt(enc_text).decode("UTF-8"))
-        
-if __name__ == "__main__":
-    aes = AESCipher(key=key)
-    iv, enc_text = aes.encrypt(plain_text)
-    dec_text = aes.decrypt(iv, enc_text)
-    print(dec_text)

nostr/pow.py

@@ -1,56 +0,0 @@
-import time
-
-from .event import Event
-from .key import PrivateKey
-
-
-def zero_bits(b: int) -> int:
-    n = 0
-
-    if b == 0:
-        return 8
-
-    while b >> 1:
-        b = b >> 1
-        n += 1
-
-    return 7 - n
-
-def count_leading_zero_bits(hex_str: str) -> int:
-    total = 0
-    for i in range(0, len(hex_str) - 2, 2):
-        bits = zero_bits(int(hex_str[i:i+2], 16))
-        total += bits
-
-        if bits != 8:
-            break
-
-    return total
-
-def mine_event(content: str, difficulty: int, public_key: str, kind: int, tags: list=[]) -> Event:
-    all_tags = [["nonce", "1", str(difficulty)]]
-    all_tags.extend(tags)
-
-    created_at = int(time.time())
-    event_id = Event.compute_id(public_key, created_at, kind, all_tags, content)
-    num_leading_zero_bits = count_leading_zero_bits(event_id)
-
-    attempts = 1
-    while num_leading_zero_bits < difficulty:
-        attempts += 1
-        all_tags[0][1] = str(attempts)
-        created_at = int(time.time())
-        event_id = Event.compute_id(public_key, created_at, kind, all_tags, content)
-        num_leading_zero_bits = count_leading_zero_bits(event_id)
-
-    return Event(public_key, content, created_at, kind, all_tags, event_id)
-
-def mine_key(difficulty: int) -> PrivateKey:
-    sk = PrivateKey()
-    num_leading_zero_bits = count_leading_zero_bits(sk.public_key.hex())
-
-    while num_leading_zero_bits < difficulty:
-        sk = PrivateKey()
-        num_leading_zero_bits = count_leading_zero_bits(sk.public_key.hex())
-
-    return sk