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#!/usr/bin/env python3
import crypto_aead
MAX_MESSAGE_LENGTH = 32
MAX_ADATA_LENGTH = 32
def print_bstr(output, label, buf):
print('{l} = {b}'.format(l=label, b=buf.hex().upper()), file=output)
def generate_test_vectors():
output_path = 'LWC_AEAD_KAT_{key}_{npub}.txt'.format(
key=crypto_aead.KEYBYTES*8, npub=crypto_aead.NPUBBYTES*8
)
npub = bytes(range(crypto_aead.NPUBBYTES))
key = bytes(range(crypto_aead.KEYBYTES))
with open(output_path, 'w') as output:
count = 1
for mlen in range(MAX_MESSAGE_LENGTH+1):
for adlen in range(MAX_ADATA_LENGTH+1):
print('Count = {c}'.format(c=count), file=output)
msg = bytes(range(mlen))
ad = bytes(range(adlen))
print_bstr(output, 'Key', key)
print_bstr(output, 'Nonce', npub)
print_bstr(output, 'PT', msg)
print_bstr(output, 'AD', ad)
ct = crypto_aead.encrypt(msg, ad, npub, key)
print_bstr(output, 'CT', ct)
crypto_aead.decrypt(ct, ad, npub, key)
count += 1
print(file=output)
if __name__ == '__main__':
generate_test_vectors()
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