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# Initial test script using py11. About 2/3 testing PKCS #11, 1/3
# doodles figuring out what else py11 should be automating for us.
from cryptech.py11 import *
from struct import pack, unpack
from binascii import hexlify, unhexlify
def show_token(i, t, strip = True):
print("Token in slot #%d:" % i)
fw = max(len(fn) for fn, ft in t.__class__._fields_)
for fn, ft in t.__class__._fields_:
fv = getattr(t, fn)
fn = "%-*s :" % (fw, fn)
if isinstance(fv, CK_VERSION):
print(" ", fn, "%d.%d" % (fv.major, fv.minor))
elif isinstance(fv, int):
print(" ", fn, fv)
else:
print(" ", fn, repr(str(fv).rstrip(" ") if strip else str(fv)))
def genkeypair_templates(name = "foo", **kwargs):
label_id = ((CKA_LABEL, name), (CKA_ID, name))
return (
# Public template
label_id + tuple(kwargs.items()) +
((CKA_VERIFY, True),
(CKA_ENCRYPT, False),
(CKA_WRAP, False),
(CKA_TOKEN, False)),
# Private template
label_id +
((CKA_SIGN, True),
(CKA_DECRYPT, False),
(CKA_UNWRAP, False),
(CKA_SENSITIVE, True),
(CKA_TOKEN, False),
(CKA_PRIVATE, True),
(CKA_EXTRACTABLE, False)))
def show_keys(session, key_class, *attributes):
p11.C_FindObjectsInit(session, {CKA_CLASS: key_class})
for o in p11.C_FindObjects(session):
a = p11.C_GetAttributeValue(session, o, attributes + (CKA_CLASS, CKA_KEY_TYPE, CKA_LABEL, CKA_ID, CKA_TOKEN,
CKA_PRIVATE, CKA_LOCAL, CKA_KEY_GEN_MECHANISM))
w = max(len(p11.adb.attribute_name(k)) for k in a)
print("Object:", o)
for k, v in a.items():
print(" %*s (0x%08x): %r" % (w, p11.adb.attribute_name(k), k, v))
p11.C_FindObjectsFinal(session)
def build_ecpoint(x, y):
h = (max(x.bit_length(), y.bit_length()) + 15) / 16
d = b"\04" + unhexlify("%0*x%0*x" % (h, x, h, y))
if len(d) < 128:
h = b"%c%c" % (0x04, len(d))
else:
n = len(d).bit_length()
h = (b"%c%c" % (0x04, (n + 7) / 8)) + unhexlify("%0*x" % ((n + 15) / 16, len(d)))
return h + d
ec_curve_oid_p256 = b"\x06\x08\x2a\x86\x48\xce\x3d\x03\x01\x07"
ec_curve_oid_p384 = b"\x06\x05\x2b\x81\x04\x00\x22"
ec_curve_oid_p521 = b"\x06\x05\x2b\x81\x04\x00\x23"
p11 = PKCS11("./libcryptech-pkcs11.so")
if False:
print("Not using MUTEXes at all")
p11.C_Initialize()
elif False:
print("Using OS MUTEXes")
p11.C_Initialize(CKF_OS_LOCKING_OK)
else:
print("Using our own pseudo-MUTEXes")
from cryptech.py11.mutex import MutexDB
mdb = MutexDB()
p11.C_Initialize(0, mdb.create, mdb.destroy, mdb.lock, mdb.unlock)
slots = p11.C_GetSlotList()
print()
print("Listing slots and tokens")
for i in slots:
show_token(i, p11.C_GetTokenInfo(i))
slot = slots[0]
print()
print("Generating some random data")
session = p11.C_OpenSession(slot)
random = p11.C_GenerateRandom(session, 33)
print(len(random), hexlify(random).decode("ascii"))
print()
print("Logging in")
p11.C_Login(session, CKU_USER, "fnord")
if False:
print()
print("Generating RSA keypair")
rsa_templates = genkeypair_templates("RSA", CKA_MODULUS_BITS = 1024)
rsa_keypair = p11.C_GenerateKeyPair(session, CKM_RSA_PKCS_KEY_PAIR_GEN, rsa_templates[0], rsa_templates[1])
print(rsa_keypair)
print()
print("Generating EC P256 keypair")
ec_templates = genkeypair_templates("EC-P256", CKA_EC_PARAMS = ec_curve_oid_p256)
ec_p256_keypair = p11.C_GenerateKeyPair(session, CKM_EC_KEY_PAIR_GEN, ec_templates[0], ec_templates[1])
print(ec_p256_keypair)
print()
print("Generating EC P384 keypair")
ec_templates = genkeypair_templates("EC-P384", CKA_EC_PARAMS = ec_curve_oid_p384)
ec_p384_keypair = p11.C_GenerateKeyPair(session, CKM_EC_KEY_PAIR_GEN, ec_templates[0], ec_templates[1])
print(ec_p384_keypair)
print()
print("Generating EC P521 keypair")
ec_templates = genkeypair_templates("EC-P521", CKA_EC_PARAMS = ec_curve_oid_p521)
ec_p521_keypair = p11.C_GenerateKeyPair(session, CKM_EC_KEY_PAIR_GEN, ec_templates[0], ec_templates[1])
print(ec_p521_keypair)
print()
print("Listing keys")
show_keys(session, CKO_PUBLIC_KEY, CKA_VERIFY, CKA_ENCRYPT, CKA_WRAP)
show_keys(session, CKO_PRIVATE_KEY, CKA_SIGN, CKA_DECRYPT, CKA_UNWRAP)
hamster = "Your mother was a hamster"
print()
print("Testing P-256 signature")
p11.C_SignInit(session, CKM_ECDSA_SHA256, ec_p256_keypair[1])
sig_p256 = p11.C_Sign(session, hamster)
print("Signature:", hexlify(sig_p256).decode("ascii"))
print()
print("Testing P256 verification")
p11.C_VerifyInit(session, CKM_ECDSA_SHA256, ec_p256_keypair[0])
p11.C_Verify(session, hamster, sig_p256)
print("OK") # Verification failure throws an exception
print()
print("Testing C_CreateObject()")
handle = p11.C_CreateObject(session, dict(
CKA_CLASS = CKO_PUBLIC_KEY,
CKA_KEY_TYPE = CKK_EC,
CKA_LABEL = "EC-P-256 test case from \"Suite B Implementer's Guide to FIPS 186-3\"",
CKA_ID = "TC-P-256",
CKA_VERIFY = True,
CKA_ENCRYPT = False,
CKA_WRAP = False,
CKA_TOKEN = False,
CKA_EC_POINT = build_ecpoint(0x8101ece47464a6ead70cf69a6e2bd3d88691a3262d22cba4f7635eaff26680a8,
0xd8a12ba61d599235f67d9cb4d58f1783d3ca43e78f0a5abaa624079936c0c3a9),
CKA_EC_PARAMS = ec_curve_oid_p256))
print(handle)
print()
print("Verifying canned signature with public key installed via C_CreateObject()")
p11.C_VerifyInit(session, CKM_ECDSA, handle)
p11.C_Verify(session,
unhexlify("7c3e883ddc8bd688f96eac5e9324222c8f30f9d6bb59e9c5f020bd39ba2b8377"),
unhexlify("7214bc9647160bbd39ff2f80533f5dc6ddd70ddf86bb815661e805d5d4e6f27c") +
unhexlify("7d1ff961980f961bdaa3233b6209f4013317d3e3f9e1493592dbeaa1af2bc367"))
print("OK")
p11.C_CloseAllSessions(slot)
p11.C_Finalize()
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