Pyshamir

Description

Python port of Shamir key Split and Combine methods from Hashicorp Vault.

Installation

pip install pyshamir 

Usage

Split & Combine

from pyshamir import split, combine
import secrets

# generate a random secret, here secret is a 32 bytes
secret = secrets.token_bytes(32)

# set the number of shares; i.e. the number of parts to split the secret into
num_of_shares = 5

# threshold is minimum number of keys required to get back the secret
threshold = 3

# split to get a list of bytearrays which can be combined later to get back the secret
parts = split(secret, num_of_shares, threshold)

# Now, the parts be combined to get back the secret
recomb_secret = combine(parts)

References

1. Shamir Secret Sharing | Wikipedia
2. Go Implementation | HashiCorp Vault