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zcash-test-vectors
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Add FF1 test vectors matching @str4d's Rust implementation. 

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
This commit is contained in:
Daira Hopwood 2018-08-03 14:03:51 +01:00
parent d7228cc68f
commit 8a6331e0a6
1 changed files with 17 additions and 4 deletions
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21
ff1.py
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@ -74,12 +74,25 @@ def ff1_aes256_decrypt(key, tweak, x):
return A + B
def test_ff1():
tweak = b''
key = unhexlify("2B7E151628AED2A6ABF7158809CF4F3CEF4359D8D580AA4F7F036D6F04FC6A94")
x = [0, 1]*44
# Test vectors consistent with the Java implementation at
# <https://git.code.sf.net/p/format-preserving-encryption/code>.
key = unhexlify("2B7E151628AED2A6ABF7158809CF4F3CEF4359D8D580AA4F7F036D6F04FC6A94")
tweak = b''
x = [0]*88
ct = ff1_aes256_encrypt(key, tweak, x)
assert ''.join(map(str, ct)) == "0000100100110101011101111111110011000001101100111110011101110101011010100100010011001111", ct
pt = ff1_aes256_decrypt(key, tweak, ct)
assert pt == x, (ct, pt)
x = list(map(int, "0000100100110101011101111111110011000001101100111110011101110101011010100100010011001111"))
ct = ff1_aes256_encrypt(key, tweak, x)
assert ''.join(map(str, ct)) == "1101101011010001100011110000010011001111110110011101010110100001111001000101011111011000", ct
pt = ff1_aes256_decrypt(key, tweak, ct)
assert pt == x, (ct, pt)
x = [0, 1]*44
ct = ff1_aes256_encrypt(key, tweak, x)
assert ''.join(map(str, ct)) == "0000111101000001111011010111011111110001100101000000001101101110100010010111001100100110", ct
pt = ff1_aes256_decrypt(key, tweak, ct)