def test_TestSHA256Hex():
h = skycoin.cipher_SHA256()
_, b = skycoin.SKY_cipher_RandByte(32)
skycoin.SKY_cipher_SHA256_Set(h, b)
_, s = skycoin.SKY_cipher_SHA256_Hex(h)
h2 = skycoin.cipher_SHA256()
err = skycoin.SKY_cipher_SHA256FromHex(s, h2)
assert err == skycoin.SKY_OK
assert h == h2
_, s2 = skycoin.SKY_cipher_SHA256_Hex(h2)
assert s2 == s
def test_TestSHA256KnownValue():
vals = []
values = struct_test()
values.inputs = b"skycoin"
values.outputs = b"5a42c0643bdb465d90bf673b99c14f5fa02db71513249d904573d2b8b63d353d"
vals.append(values)
values.inputs = b"hello world"
values.outputs = b"b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9"
vals.append(values)
values.inputs = b"hello world asd awd awd awdapodawpokawpod "
values.outputs = b"99d71f95cafe05ea2dddebc35b6083bd5af0e44850c9dc5139b4476c99950be4"
for v in vals:
b = v.inputs
h = skycoin.cipher_SHA256()
err = skycoin.SKY_cipher_SumSHA256(b, h)
assert err == skycoin.SKY_OK
_, h = skycoin.SKY_cipher_SHA256_Hex(h)
assert h == v.outputs
def test_TestSHA256FromHex():
# Invalid hex hash
h = skycoin.cipher_SHA256()
err = skycoin.SKY_cipher_SHA256FromHex(b"cawcad", h)
assert err == skycoin.SKY_ERROR
# Truncated hex hash
_, b = skycoin.SKY_cipher_RandByte(128)
h = skycoin.cipher_SHA256()
skycoin.SKY_cipher_SumSHA256(b, h)
h_bytes = h.toStr()
h1 = skycoin.cipher_SHA256()
err = skycoin.SKY_cipher_SHA256FromHex(h_bytes[:int(len(h_bytes) / 2)], h1)
assert err == skycoin.SKY_ERROR
# Valid hex hash
h2 = skycoin.cipher_SHA256()
err, b = skycoin.SKY_cipher_SHA256_Hex(h)
err = skycoin.SKY_cipher_SHA256FromHex(b, h2)
assert h == h2
assert err == skycoin.SKY_OK