base48 bitcoin convert

Initialisation -------------- Before you can use libbase58 for base58check, you must provide a SHA256 function. The required function signature is: bool my_sha256(void *digest, const void *data, size_t datasz) Si

可将32位长度的uuid缩减为长度为22位长度的唯一ID(The 32 bit length UUID can be reduced to a unique ID with length of 22 bits)