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| author | Paul Kehrer <paul.l.kehrer@gmail.com> | 2014-04-08 09:17:02 -0500 |
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| committer | Paul Kehrer <paul.l.kehrer@gmail.com> | 2014-04-08 11:38:10 -0500 |
| commit | 6d8f9b0273e2edfbbf5fedc5dbc5c2c427a3e3e9 (patch) | |
| tree | d360ef25b99c7c88a399a1017420a058c83c7cb3 /docs/development/custom-vectors/seed/verify_seed.py | |
| parent | fb201e9f21c19d2e31020012fafdeb85083d36c4 (diff) | |
| download | cryptography-6d8f9b0273e2edfbbf5fedc5dbc5c2c427a3e3e9.tar.gz cryptography-6d8f9b0273e2edfbbf5fedc5dbc5c2c427a3e3e9.tar.bz2 cryptography-6d8f9b0273e2edfbbf5fedc5dbc5c2c427a3e3e9.zip | |
add SEED CFB/OFB bespoke vectors and documentation
Diffstat (limited to 'docs/development/custom-vectors/seed/verify_seed.py')
| -rw-r--r-- | docs/development/custom-vectors/seed/verify_seed.py | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/docs/development/custom-vectors/seed/verify_seed.py b/docs/development/custom-vectors/seed/verify_seed.py new file mode 100644 index 00000000..e626428c --- /dev/null +++ b/docs/development/custom-vectors/seed/verify_seed.py @@ -0,0 +1,35 @@ +import binascii + +import botan + +from tests.utils import load_nist_vectors + + +def encrypt(mode, key, iv, plaintext): + encryptor = botan.Cipher("SEED/{0}/NoPadding".format(mode), "encrypt", + binascii.unhexlify(key)) + + cipher_text = encryptor.cipher(binascii.unhexlify(plaintext), + binascii.unhexlify(iv)) + return binascii.hexlify(cipher_text) + + +def verify_vectors(mode, filename): + with open(filename, "r") as f: + vector_file = f.read().splitlines() + + vectors = load_nist_vectors(vector_file) + for vector in vectors: + ct = encrypt( + mode, + vector["key"], + vector["iv"], + vector["plaintext"] + ) + assert ct == vector["ciphertext"] + + +ofb_path = "vectors/cryptography_vectors/ciphers/SEED/seed-ofb.txt" +verify_vectors("OFB", ofb_path) +cfb_path = "vectors/cryptography_vectors/ciphers/SEED/seed-cfb.txt" +verify_vectors("CFB", cfb_path) |