2011年3月14日 · Lower base = more digits to represent the same number. In this case, base64 is 5/6 the size of base32, because base32 gets you log2(32)=5 bits per character, while base64 gets you log2(64)=6 bits per character.

This is a really old question, but I happened to stumble on it wanting the same thing for OTP tokens. It turns out that there is base 32 functionality built into the OTP.NET package on NuGet: Base32Encoding.ToBytes("(your base 32 string here)") The reverse is also possible: Base32Encoding.ToString(new byte[] { /* your bytes here */ })

2016年10月30日 · I'm looking to reduce the number of digits (whilst adding a checksum) using a base 32 scheme. I'm most in favour of z-base-32 (over the RFC4648 implementation) because of some of the design goals (e.g. handwriting) and choice of alphabet (lower-case, permuted to favour characters that are easier to read, write, speak, and remember). However, I ...

2009年8月26日 · I would like to convert numbers between different bases, such as hexadecimal and decimal. Example: How do you convert hexadecimal 8F to decimal?

The routines take care of switching between base 10 and base x automatically and the value you set is preserved in the base you set it in, so no accuracy is lost (until conversion that is, but even then precision loss should be very minimal since this routine uses Double and Long where ever possible). I can't command on the speed of this routine.

2021年7月4日 · Now, representing the number 12345 in base 32 this way (using symbols 0-9 and A-V) will give you C1P since C has the value 13, 1 has the value 1 and P has the value 25, and 13 * 32^2 + 1 * 32^1 + 25 * 32^0 equals 12345. This is just a way to write a number using 32 distinct symbols instead of 10, I wouldn't call it an "encoding" as such.

2019年1月19日 · Base32 encoding in python 2.7 works like this: $ python Python 2.7.10 (default, Oct 6 2017, 22:29:07) [GCC 4.2.1 Compatible Apple LLVM 9.0.0 (clang-900.0.31)] on darwin Type "help", "copyright", "

Just 26 uppercase A-Z letters and 6 numbers(2-7) = 32 chars. So confusion with lowercase I "i" lowercase L "l" uppercase I "I" and number "1" is reduced. Similarly confusion of Letter "B" with the number "8", and number "0" with Letter "O" are also reduced.

2021年12月17日 · A base32 encodes every 5 bits of input bytes into base32 character, go base32 use The RFC 4648 Base 32 alphabet (A-Z, 2-7). When decode a string to bytes, each base32 character input will be mapped to a 5 bit index then recompose to bytes.

2015年2月20日 · @anztenney - Much of the code assumes base 32 - thus the name of the class. I would recommend using something else for base 30. I would probably transform your alphabet to simple base 30 as BigInteger expects it and use BigInteger to parse it. Perhaps new BigInteger(String, int) –