Base58?

[tkbx]

Where can I find a Python function to convert bytes to base58 for addresses and wallet import format private keys?



The wiki only has what appears to be some kind of pseudocode.

[flatfly]

I have some really tight code for this on my home PC. Will try to remember to post it this when I get a chance this weekend - that is, if nobody beats me to it.   There are literally dozens of implementations around.
If you can't wait, you can try digging through the Electrum and Armory repos.

[deepceleron]

http://we.lovebitco.in/paperwal.py

Has two functions o_b58():with bitcoin address checksum and b58encode():non checksum. You can use it as an import library. Since it makes a bitcoin address, everything library-wise that you need to make a paper wallet is obviously included.

https://bitcointalk.org/index.php?topic=361092.0

[tkbx]

http://we.lovebitco.in/paperwal.py

Has two functions o_b58():with bitcoin address checksum and b58encode():non checksum. You can use it as an import library. Since it makes a bitcoin address, everything library-wise that you need to make a paper wallet is obviously included.

https://bitcointalk.org/index.php?topic=361092.0

Perfect, thanks

Just in case anyone finds this question by googling and wants the solution:

Code:

def b58encode(v):
	""" gavin bitcointool - encode v, which is a string of bytes, to base58.
	"""
	_b58chars = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
	_b58base = len(_b58chars)

	#(c style int->base256)
	long_value = 0L
	for (i, c) in enumerate(v[::-1]):
		long_value += (256**i) * ord(c)
	result = ''
	while long_value >= _b58base:
		div, mod = divmod(long_value, _b58base)
		result = _b58chars[mod] + result
		long_value = div
	result = _b58chars[long_value] + result
	zeropad = 0
	for c in v:
		if c == '\x00':
			zeropad += 1
		else:
			break
	return '1'*zeropad + result

[jadescorpio]

Why do you need to convert bytes to base58 for addresses and wallet import format private keys? How can it be useful?

[KawalGrover]

Why do you need to convert bytes to base58 for addresses and wallet import format private keys? How can it be useful?

From the bitcoin wiki:

// Why base-58 instead of standard base-64 encoding?
// - Don't want 0OIl characters that look the same in some fonts and
//      could be used to create visually identical looking account numbers.
// - A string with non-alphanumeric characters is not as easily accepted as an account number.
// - E-mail usually won't line-break if there's no punctuation to break at.
// - Doubleclicking selects the whole number as one word if it's all alphanumeric.