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Move to base32 check strings instead

This commit is contained in:
Juhani Krekelä 2019-12-11 00:58:41 +02:00
parent 86c97b4ac0
commit 4bc207967d
1 changed files with 4 additions and 4 deletions
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kishib.py
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@ -111,7 +111,7 @@ def auth_hash(client_pubkey, server_pubkey):
combined_hash = sha512(client_pubkey_hash + server_pubkey_hash)
truncated_hash = combined_hash[:32]
hash_check = sha512(truncated_hash)[:4]
hash_check = sha512(truncated_hash)[:5]
return truncated_hash + hash_check
def chunk(sliceable, length):
@ -119,9 +119,9 @@ def chunk(sliceable, length):
yield sliceable[i:i + length]
def format_hash(hash_bytes):
hash_base64 = base64.b64encode(hash_bytes).decode()
chunked_base64 = chunk(hash_base64, 4)
return '-'.join(chunked_base64)
hash_base32 = base64.b32encode(hash_bytes).decode().lower().replace('=', '')
chunked_base32 = chunk(hash_base32, 5)
return '-'.join(chunked_base32)
def verify(client_pubkey, server_pubkey):
own_hash = auth_hash(client_pubkey, server_pubkey)