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-rwxr-xr-xnist/package-python.sh7
-rwxr-xr-xtest/python/genkat_aead.py24
2 files changed, 21 insertions, 10 deletions
diff --git a/nist/package-python.sh b/nist/package-python.sh
index 4813dc7..88c4ef1 100755
--- a/nist/package-python.sh
+++ b/nist/package-python.sh
@@ -5,7 +5,7 @@ set -eu
NIST_DIR=$(dirname $0)
ROOT=${NIST_DIR}/..
ADD_PYTHON=${ROOT}/src/add_python
-CRYPTO_AEAD=${ROOT}/crypto_aead
+PYTHON_RESOURCES=${ROOT}/test/python/
add-variant ()
@@ -15,7 +15,7 @@ add-variant ()
local -A names=([1]=lilliputaei [2]=lilliputaeii)
- variant_dir=${CRYPTO_AEAD}/${names[${mode}]}${keylen}v1
+ variant_dir=crypto_aead/${names[${mode}]}${keylen}v1
cp -r ${ADD_PYTHON} ${variant_dir}
@@ -23,6 +23,9 @@ add-variant ()
MODE = ${mode}
KEYBYTES = $((keylen/8))
EOF
+
+ cp ${PYTHON_RESOURCES}/{crypto_aead.py,genkat_aead.py} \
+ ${variant_dir}/add_python
}
diff --git a/test/python/genkat_aead.py b/test/python/genkat_aead.py
index 01bed6f..5e953c4 100755
--- a/test/python/genkat_aead.py
+++ b/test/python/genkat_aead.py
@@ -3,8 +3,13 @@
import crypto_aead
+class DecryptionError(Exception):
+ def __init__(self):
+ super().__init__('crypto_aead_decrypt did not recover the plaintext')
+
+
MAX_MESSAGE_LENGTH = 32
-MAX_ADATA_LENGTH = 32
+MAX_ASSOCIATED_DATA_LENGTH = 32
def print_bstr(output, label, buf):
@@ -12,23 +17,25 @@ def print_bstr(output, label, buf):
def generate_test_vectors():
- output_path = 'LWC_AEAD_KAT_{key}_{npub}.txt'.format(
+ count = 1
+ filename = '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:
+ with open(filename, '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)
+ for adlen in range(MAX_ASSOCIATED_DATA_LENGTH+1):
msg = bytes(range(mlen))
ad = bytes(range(adlen))
+ print('Count = {c}'.format(c=count), file=output)
+ count += 1
+
print_bstr(output, 'Key', key)
print_bstr(output, 'Nonce', npub)
print_bstr(output, 'PT', msg)
@@ -38,9 +45,10 @@ def generate_test_vectors():
print_bstr(output, 'CT', ct)
- crypto_aead.decrypt(ct, ad, npub, key)
+ msg2 = crypto_aead.decrypt(ct, ad, npub, key)
- count += 1
+ if msg != msg2:
+ raise DecryptionError()
print(file=output)