[mod] #176: Get rid of base58 code

silkaj/crypto_tools.py

@@ -82,60 +82,3 @@ def gen_checksum(pubkey):
     pubkey_byte = base58.b58decode(pubkey)
     hash = hashlib.sha256(hashlib.sha256(pubkey_byte).digest()).digest()
     return base58.b58encode(hash)[:3].decode("utf-8")
-
-
-b58_digits = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"
-
-
-def b58_encode(b):
-
-    # Convert big-endian bytes to integer
-    n = int("0x0" + encoding.HexEncoder.encode(b).decode("utf8"), 16)
-
-    # Divide that integer into base58
-    res = []
-    while n > 0:
-        n, r = divmod(n, 58)
-        res.append(b58_digits[r])
-    res = "".join(res[::-1])
-
-    # Encode leading zeros as base58 zeros
-    czero = 0
-    pad = 0
-    for c in b:
-        if c == czero:
-            pad += 1
-        else:
-            break
-    return b58_digits[0] * pad + res
-
-
-def b58_decode(s):
-    if not s:
-        return b""
-
-    # Convert the string to an integer
-    n = 0
-    for c in s:
-        n *= 58
-        if c not in b58_digits:
-            raise InvalidBase58Error(
-                "Character %r is not a " + "valid base58 character" % c
-            )
-        digit = b58_digits.index(c)
-        n += digit
-
-    # Convert the integer to bytes
-    h = "%x" % n
-    if len(h) % 2:
-        h = "0" + h
-    res = encoding.HexEncoder.decode(h.encode("utf8"))
-
-    # Add padding back.
-    pad = 0
-    for c in s[:-1]:
-        if c == b58_digits[0]:
-            pad += 1
-        else:
-            break
-    return b"\x00" * pad + res