def __init__(self, sk_bytes):
if not isinstance(sk_bytes, type("")):
raise TypeError("must be bytes, not %s" % type(sk_bytes))
if len(sk_bytes) != 32:
raise ValueError("must be exactly 32 bytes")
vk_bytes, sk_and_vk = _ed25519.publickey(sk_bytes)
assert sk_and_vk[:32] == sk_bytes
assert vk_bytes == sk_and_vk[32:]
self.vk_bytes = vk_bytes
self.sk_and_vk = sk_and_vk
def __init__(self, sk_s, prefix="", encoding=None):
assert isinstance(sk_s, type("")) # string, really bytes
sk_s = remove_prefix(sk_s, prefix)
if encoding is not None:
sk_s = from_ascii(sk_s, encoding=encoding)
if len(sk_s) == 32:
# create from seed
vk_s, sk_s = _ed25519.publickey(sk_s)
else:
if len(sk_s) != 32+32:
raise ValueError("SigningKey takes 32-byte seed or 64-byte string")
self.sk_s = sk_s # seed+pubkey
self.vk_s = sk_s[32:] # just pubkey
