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add more test vectors for aes #7838

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Apr 6, 2023
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44 changes: 44 additions & 0 deletions tests/circuitpython/aes.py
Original file line number Diff line number Diff line change
Expand Up @@ -97,3 +97,47 @@
cipher.decrypt_into(cyphertext[i : i + 16], output)
print(str(hexlify(output), ""))
print()

print("truncated-CTR-1")
## Truncated CTR test case
plaintext = unhexlify("6bc1bee22e409f96e93d7e117393172a" "ae2d")

key = unhexlify("2b7e151628aed2a6abf7158809cf4f3c")
counter = unhexlify("f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff")
cyphertext = bytearray(len(plaintext))
cipher = aesio.AES(key, aesio.MODE_CTR, IV=counter)
for i in range(0, len(plaintext), 16):
output = memoryview(cyphertext)[i : i + 16]
cipher.encrypt_into(plaintext[i : i + 16], output)
print(str(hexlify(output), ""))
print()

plaintext = bytearray(len(plaintext))
cipher = aesio.AES(key, aesio.MODE_CTR, IV=counter)
for i in range(0, len(plaintext), 16):
output = memoryview(plaintext)[i : i + 16]
cipher.decrypt_into(cyphertext[i : i + 16], output)
print(str(hexlify(output), ""))
print()

print("truncated-CTR-2")
## Truncated CTR test case #2
plaintext = unhexlify("6bc1bee22e409f96e93d7e117393172a" "ae")

key = unhexlify("2b7e151628aed2a6abf7158809cf4f3c")
counter = unhexlify("f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff")
cyphertext = bytearray(len(plaintext))
cipher = aesio.AES(key, aesio.MODE_CTR, IV=counter)
cipher.encrypt_into(plaintext, cyphertext)
for i in range(0, len(plaintext), 16):
output = memoryview(cyphertext)[i : i + 16]
print(str(hexlify(output), ""))
print()

plaintext = bytearray(len(plaintext))
cipher = aesio.AES(key, aesio.MODE_CTR, IV=counter)
cipher.decrypt_into(cyphertext, plaintext)
for i in range(0, len(plaintext), 16):
output = memoryview(plaintext)[i : i + 16]
print(str(hexlify(output), ""))
print()
14 changes: 14 additions & 0 deletions tests/circuitpython/aes.py.exp
Original file line number Diff line number Diff line change
Expand Up @@ -34,3 +34,17 @@ ae2d8a571e03ac9c9eb76fac45af8e51
30c81c46a35ce411e5fbc1191a0a52ef
f69f2445df4f9b17ad2b417be66c3710

truncated-CTR-1
874d6191b620e3261bef6864990db6ce
9806

6bc1bee22e409f96e93d7e117393172a
ae2d

truncated-CTR-2
874d6191b620e3261bef6864990db6ce
98

6bc1bee22e409f96e93d7e117393172a
ae