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bpo-29324 update test_socket AEAD test for kernel 4.9 and up #133

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Feb 16, 2017
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bpo-29324 update test_socket AEAD test for kernel 4.9 and up #133

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15 changes: 7 additions & 8 deletions Lib/test/test_socket.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5487,7 +5487,7 @@ def test_aes_cbc(self):
self.assertEqual(len(dec), msglen * multiplier)
self.assertEqual(dec, msg * multiplier)

@support.requires_linux_version(4, 3) # see test_aes_cbc
@support.requires_linux_version(4, 9) # see issue29324
def test_aead_aes_gcm(self):
key = bytes.fromhex('c939cc13397c1d37de6ae0e1cb7c423c')
iv = bytes.fromhex('b3d8cc017cbb89b39e0f67e2')
Expand All @@ -5510,16 +5510,15 @@ def test_aead_aes_gcm(self):
op.sendmsg_afalg(op=socket.ALG_OP_ENCRYPT, iv=iv,
assoclen=assoclen, flags=socket.MSG_MORE)
op.sendall(assoc, socket.MSG_MORE)
op.sendall(plain, socket.MSG_MORE)
op.sendall(b'\x00' * taglen)
op.sendall(plain)
res = op.recv(assoclen + len(plain) + taglen)
self.assertEqual(expected_ct, res[assoclen:-taglen])
self.assertEqual(expected_tag, res[-taglen:])

# now with msg
op, _ = algo.accept()
with op:
msg = assoc + plain + b'\x00' * taglen
msg = assoc + plain
op.sendmsg_afalg([msg], op=socket.ALG_OP_ENCRYPT, iv=iv,
assoclen=assoclen)
res = op.recv(assoclen + len(plain) + taglen)
Expand All @@ -5530,15 +5529,15 @@ def test_aead_aes_gcm(self):
pack_uint32 = struct.Struct('I').pack
op, _ = algo.accept()
with op:
msg = assoc + plain + b'\x00' * taglen
msg = assoc + plain
op.sendmsg(
[msg],
([socket.SOL_ALG, socket.ALG_SET_OP, pack_uint32(socket.ALG_OP_ENCRYPT)],
[socket.SOL_ALG, socket.ALG_SET_IV, pack_uint32(len(iv)) + iv],
[socket.SOL_ALG, socket.ALG_SET_AEAD_ASSOCLEN, pack_uint32(assoclen)],
)
)
res = op.recv(len(msg))
res = op.recv(len(msg) + taglen)
self.assertEqual(expected_ct, res[assoclen:-taglen])
self.assertEqual(expected_tag, res[-taglen:])

Expand All @@ -5548,8 +5547,8 @@ def test_aead_aes_gcm(self):
msg = assoc + expected_ct + expected_tag
op.sendmsg_afalg([msg], op=socket.ALG_OP_DECRYPT, iv=iv,
assoclen=assoclen)
res = op.recv(len(msg))
self.assertEqual(plain, res[assoclen:-taglen])
res = op.recv(len(msg) - taglen)
self.assertEqual(plain, res[assoclen:])

@support.requires_linux_version(4, 3) # see test_aes_cbc
def test_drbg_pr_sha256(self):
Expand Down