Neil Armstrong
72c2f76c43
Assume MAC key length is always exactly the output size in PSA version of mbedtls_ct_hmac()
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Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2022-03-18 11:09:36 +01:00
Neil Armstrong
36cc13b340
Use PSA defines for buffers in PSA version of mbedtls_ct_hmac()
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Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2022-03-18 11:09:20 +01:00
Neil Armstrong
ae57cfd3e7
Use psa_ssl_status_to_mbedtls in PSA version of mbedtls_ct_hmac()
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Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2022-03-18 10:00:10 +01:00
Neil Armstrong
28d9c631b8
Fix comments in PSA version of mbedtls_ct_hmac()
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Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2022-03-18 10:00:10 +01:00
Neil Armstrong
6958bd0206
Clean aux_out in PSA version of mbedtls_ct_hmac()
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Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2022-03-02 15:37:11 +01:00
Neil Armstrong
2968d306e4
Implement mbedtls_ct_hmac() using PSA hash API
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Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2022-02-25 15:16:50 +01:00
Tautvydas Žilys
40fc7da101
Cap the workaround for mbedtls_mpi_safe_cond_assign on MSVC/ARM64 to MSVC versions prior to 17.1.
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Signed-off-by: Tautvydas Žilys <tautvydas.zilys@gmail.com>
2022-01-31 13:34:01 -08:00
Tautvydas Žilys
60165d7708
Don't inline mbedtls_mpi_safe_cond_assign on MSVC/ARM64 to avoid a compiler bug.
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Signed-off-by: Tautvydas Žilys <tautvydas.zilys@gmail.com>
2022-01-26 15:44:10 -08:00
Gabor Mezei
a09697527b
Add documentation for the functions
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Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
2021-11-26 17:25:14 +01:00
Gabor Mezei
14d5fac11d
Unify function parameters
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Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
2021-11-26 17:23:26 +01:00
Gabor Mezei
c0d8dda60d
Make mbedtls_ct_uchar_mask_of_range function static
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Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
2021-11-26 17:20:36 +01:00
Gabor Mezei
358829abc9
Move mbedtls_ct_base64_dec_value function to the constant-time module
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Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
2021-11-26 17:14:52 +01:00
Gabor Mezei
9a4074aa1e
Move mbedtls_ct_base64_enc_char function to the constant-time module
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Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
2021-11-26 17:14:21 +01:00
Gabor Mezei
28d611559e
Move mbedtls_ct_uchar_mask_of_range function to the constant-time module
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Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
2021-11-26 17:09:38 +01:00
Gabor Mezei
642eeb2879
Fix documentation and comments
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Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
2021-11-03 16:13:32 +01:00
Gabor Mezei
22c9a6fccc
Rename internal header constant_time.h to constant_time_internal.h
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Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
2021-10-20 12:15:20 +02:00
Gabor Mezei
90437e3762
Rename constant-time functions to have mbedtls_ct prefix
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Rename functions to better suite with the module name.
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
2021-10-20 11:59:27 +02:00
Gabor Mezei
6a426c9f9f
Bind functions' availability for config options
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Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
2021-10-20 11:17:43 +02:00
Gabor Mezei
765862c4f3
Move mbedtls_cf_memcmp to a new public header
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Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
2021-10-19 12:22:25 +02:00
Gabor Mezei
e212379810
Bind functions' availability for config options
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Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
2021-10-18 19:38:02 +02:00
Gabor Mezei
949455892f
Remove unused function
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Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
2021-10-18 17:02:29 +02:00
Gabor Mezei
a2d0f90c5a
Make functions static
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These functions are only used as an auxiliary function for constant-time functions.
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
2021-10-18 16:56:50 +02:00
Gabor Mezei
a316fc8eb0
Update documentation and comments
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Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
2021-10-18 16:39:13 +02:00
Gabor Mezei
63bbba5c13
Rename and reorder function parameters
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Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
2021-10-18 16:39:13 +02:00
Gabor Mezei
7013f62ee5
Use condition for not sensitive data
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Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
2021-10-18 16:39:13 +02:00
Gabor Mezei
eab90bcc36
Move implementation specific comment
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This comment is about how the functions are implemented, not about their
public interface, so it doesn't belong in the header file.
It applies to everything in constant_time.c so moved there.
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
2021-10-18 16:39:13 +02:00
Gabor Mezei
1e64261da5
Make mbedtls_cf_size_mask_lt function static
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The mbedtls_cf_size_mask_lt is solely used as an auxiliary function
for mbedtls_cf_size_mask_ge.
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
2021-10-18 16:39:13 +02:00
gabor-mezei-arm
5b3a32d883
Fix missing includes
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Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-29 10:53:55 +02:00
gabor-mezei-arm
90d96cc741
Add documentation for the functions
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Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 17:07:51 +02:00
gabor-mezei-arm
b11a56e34c
Unify equality checker functions return value
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The equality checker functions always return 0 or 1 value,
thus the type of return value can be the same dispite of the
size of the parameters.
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:42:19 +02:00
gabor-mezei-arm
9cb55698aa
Propagate usage of mask generation functions
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Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:42:19 +02:00
gabor-mezei-arm
396438c57b
Unify mask generation functions
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Generate all-bits 0 or all bits 1 mask from a value instead of from a bit.
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:42:19 +02:00
gabor-mezei-arm
87ac5bef97
Unify function parameters
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Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:42:16 +02:00
gabor-mezei-arm
4602564d7a
Unify memcmp functions
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Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:33:47 +02:00
gabor-mezei-arm
2dcd7686ce
Typo: Unify indentation of function parameters
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Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:33:44 +02:00
gabor-mezei-arm
fdb71183f8
Move mbedtls_cf_rsaes_pkcs1_v15_unpadding function to the constant-time module
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Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:28:45 +02:00
gabor-mezei-arm
65cefdbfcb
Create mbedtls_cf_size_if function
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Add a constant-time function with size_t parameter for choosing
between two integer values, like the ?: ternary operator.
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:28:44 +02:00
gabor-mezei-arm
c29a3da599
Move mbedtls_mpi_lt_mpi_ct function to the constant-time module
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Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:28:44 +02:00
gabor-mezei-arm
5c97621215
Move mbedtls_mpi_safe_cond_swap function to the constant-time module
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Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:28:44 +02:00
gabor-mezei-arm
40a4925128
Move mbedtls_mpi_safe_cond_assign function to the constant-time module
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Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:28:44 +02:00
gabor-mezei-arm
1349ffde84
Move mbedtls_cf_hmac function to the constant-time module
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Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:28:44 +02:00
gabor-mezei-arm
0e7f71e1a9
Move mbedtls_cf_memcpy_offset function to the constant-time module
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Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:28:44 +02:00
gabor-mezei-arm
dee0fd33f1
Move mbedtls_cf_memcpy_if_eq function to the constant-time module
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Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:28:43 +02:00
gabor-mezei-arm
394aeaaefb
Move mbedtls_cf_mem_move_to_left function to the constant-time module
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Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:28:41 +02:00
gabor-mezei-arm
be8d98b0be
Move mbedtls_cf_mpi_uint_cond_assign function to the constant-time module
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Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:23:57 +02:00
gabor-mezei-arm
d3230d533c
Move mbedtls_cf_cond_select_sign function to the constant-time module
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Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:21:10 +02:00
gabor-mezei-arm
b2dbf2c113
Move mbedtls_cf_uint_if function to the constant-time module
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Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:21:10 +02:00
gabor-mezei-arm
3f90fd540a
Move mbedtls_cf_mpi_uint_lt function to the constant-time module
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Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:21:10 +02:00
gabor-mezei-arm
5a85442604
Move mbedtls_cf_size_gt function to the constant-time module
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Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:21:09 +02:00
gabor-mezei-arm
8d1d5fd204
Move mbedtls_cf_size_bool_eq function to the constant-time module
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There were multiple functions called mbedtls_cf_size_bool_eq. They had exactly
the same behavior, so move the one in bignum.c and remove the other.
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-09-28 16:20:07 +02:00