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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 py11 import *
from struct import pack, unpack
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, long)):
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.iteritems()) +
((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.iteritems():
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 = chr(0x04) + ("%0*x%0*x" % (h, x, h, y)).decode("hex")
if len(d) < 128:
h = "%c%c" % (0x04, len(d))
else:
n = len(d).bit_length()
h = ("%c%c" % (0x04, (n + 7) / 8)) + ("%0*x" % ((n + 15) / 16, len(d))).decode("hex")
return h + d
ec_curve_oid_p256 = "".join(chr(i) for i in (0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07))
ec_curve_oid_p384 = "".join(chr(i) for i in (0x06, 0x05, 0x2b, 0x81, 0x04, 0x00, 0x22))
ec_curve_oid_p521 = "".join(chr(i) for i in (0x06, 0x05, 0x2b, 0x81, 0x04, 0x00, 0x23))
p11 = PKCS11("./libpkcs11.so")
if False:
print "Not using MUTEXes at all"
p11.C_Initialize()
elif True:
print "Using OS MUTEXes"
p11.C_Initialize(CKF_OS_LOCKING_OK)
else:
print "Using our own pseudo-MUTEXes"
# This class probably belongs in the library.
class Mutexes(object):
format = "=L"
length = len(pack(format, 0))
def __init__(self, verbose = True, flags = 0):
self.init_args = (flags, self.create, self.destroy, self.lock, self.unlock)
self.next_mutex = 0
self.mutexes = {}
self.verbose = verbose
def find(self):
if len(self.mutexes) > 0xFFFFFFFF:
raise RuntimeError
while self.next_mutex in self.mutexes:
self.next_mutex = (self.next_mutex + 1) & 0xFFFFFFFF
def encode(self, n):
return (CK_BYTE * self.length)(*pack(self.format, n))
def decode(self, m):
return unpack(self.format, m[:self.length])[0]
def create(self, mm):
self.find()
if self.verbose:
print "Creating mutex", self.next_mutex
m = self.encode(self.next_mutex)
self.mutexes[self.next_mutex] = [False, m]
mm[0] = m
return CKR_OK
def destroy(self, m):
mutex = self.decode(m)
if self.verbose:
print "Destroying mutex", mutex
del self.mutexes[mutex]
return CKR_OK
def lock(self, m):
mutex = self.decode(m)
if self.verbose:
print "Locking mutex", mutex
self.mutexes[mutex][0] = True
return CKR_OK
def unlock(self, m):
mutex = self.decode(m)
if self.verbose:
print "Unlocking mutex", mutex
self.mutexes[mutex][0] = False
return CKR_OK
mutexes = Mutexes()
p11.C_Initialize(*mutexes.init_args)
# Dun with MUTEX insanit and C_Initialize() call
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), "".join("%02x" % ord(i) for i in random)
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:", sig_p256.encode("hex")
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,
"7c3e883ddc8bd688f96eac5e9324222c8f30f9d6bb59e9c5f020bd39ba2b8377".decode("hex"),
"7214bc9647160bbd39ff2f80533f5dc6ddd70ddf86bb815661e805d5d4e6f27c".decode("hex") +
"7d1ff961980f961bdaa3233b6209f4013317d3e3f9e1493592dbeaa1af2bc367".decode("hex"))
print "OK"
p11.C_CloseAllSessions(slot)
p11.C_Finalize()
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