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linux/crypto/ecc.c

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crypto: ecdh - Add ECDH software support * Implement ECDH under kpp API * Provide ECC software support for curve P-192 and P-256. * Add kpp test for ECDH with data generated by OpenSSL Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-22 17:49:15 +01:00
crypto: ecdh - add privkey generation support Add support for generating ecc private keys. Generation of ecc private keys is helpful in a user-space to kernel ecdh offload because the keys are not revealed to user-space. Private key generation is also helpful to implement forward secrecy. If the user provides a NULL ecc private key, the kernel will generate it and further use it for ecdh. Move ecdh's object files below drbg's. drbg must be present in the kernel at the time of calling. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Reviewed-by: Stephan Müller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-05-30 17:52:48 +03:00
crypto: ecdh - Add ECDH software support * Implement ECDH under kpp API * Provide ECC software support for curve P-192 and P-256. * Add kpp test for ECDH with data generated by OpenSSL Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-22 17:49:15 +01:00
crypto: ecc - remove unnecessary casts ecc software implementation works with chunks of u64 data. There were some unnecessary casts to u8 and then back to u64 for the ecc keys. This patch removes the unnecessary casts. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-05-25 10:18:05 +03:00
crypto: ecdh - Add ECDH software support * Implement ECDH under kpp API * Provide ECC software support for curve P-192 and P-256. * Add kpp test for ECDH with data generated by OpenSSL Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-22 17:49:15 +01:00
crypto: ecc - remove unnecessary casts ecc software implementation works with chunks of u64 data. There were some unnecessary casts to u8 and then back to u64 for the ecc keys. This patch removes the unnecessary casts. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-05-25 10:18:05 +03:00
crypto: ecdh - Add ECDH software support * Implement ECDH under kpp API * Provide ECC software support for curve P-192 and P-256. * Add kpp test for ECDH with data generated by OpenSSL Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-22 17:49:15 +01:00
crypto: ecc - remove unnecessary casts ecc software implementation works with chunks of u64 data. There were some unnecessary casts to u8 and then back to u64 for the ecc keys. This patch removes the unnecessary casts. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-05-25 10:18:05 +03:00
crypto: ecdh - Add ECDH software support * Implement ECDH under kpp API * Provide ECC software support for curve P-192 and P-256. * Add kpp test for ECDH with data generated by OpenSSL Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-22 17:49:15 +01:00
crypto: ecdh - add privkey generation support Add support for generating ecc private keys. Generation of ecc private keys is helpful in a user-space to kernel ecdh offload because the keys are not revealed to user-space. Private key generation is also helpful to implement forward secrecy. If the user provides a NULL ecc private key, the kernel will generate it and further use it for ecdh. Move ecdh's object files below drbg's. drbg must be present in the kernel at the time of calling. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Reviewed-by: Stephan Müller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-05-30 17:52:48 +03:00
crypto: ecc - Fix NULL pointer deref. on no default_rng If crypto_get_default_rng returns an error, the function ecc_gen_privkey should return an error. Instead, it currently tries to use the default_rng nevertheless, thus creating a kernel panic with a NULL pointer dereference. Returning the error directly, as was supposedly intended when looking at the code, fixes this. Signed-off-by: Pierre Ducroquet <pinaraf@pinaraf.info> Reviewed-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-12 15:24:32 +01:00
crypto: ecdh - add privkey generation support Add support for generating ecc private keys. Generation of ecc private keys is helpful in a user-space to kernel ecdh offload because the keys are not revealed to user-space. Private key generation is also helpful to implement forward secrecy. If the user provides a NULL ecc private key, the kernel will generate it and further use it for ecdh. Move ecdh's object files below drbg's. drbg must be present in the kernel at the time of calling. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Reviewed-by: Stephan Müller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-05-30 17:52:48 +03:00
crypto: ecc - rename ecdh_make_pub_key() Rename ecdh_make_pub_key() to ecc_make_pub_key(). ecdh_make_pub_key() is not dh specific and the reference to dh is wrong. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-05-30 15:37:56 +03:00
crypto: ecdh - Add ECDH software support * Implement ECDH under kpp API * Provide ECC software support for curve P-192 and P-256. * Add kpp test for ECDH with data generated by OpenSSL Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-22 17:49:15 +01:00
crypto: ecc - remove unnecessary casts ecc software implementation works with chunks of u64 data. There were some unnecessary casts to u8 and then back to u64 for the ecc keys. This patch removes the unnecessary casts. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-05-25 10:18:05 +03:00
crypto: ecdh - Add ECDH software support * Implement ECDH under kpp API * Provide ECC software support for curve P-192 and P-256. * Add kpp test for ECDH with data generated by OpenSSL Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-22 17:49:15 +01:00
crypto: ecc - remove unnecessary casts ecc software implementation works with chunks of u64 data. There were some unnecessary casts to u8 and then back to u64 for the ecc keys. This patch removes the unnecessary casts. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-05-25 10:18:05 +03:00
crypto: ecdh - Add ECDH software support * Implement ECDH under kpp API * Provide ECC software support for curve P-192 and P-256. * Add kpp test for ECDH with data generated by OpenSSL Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-22 17:49:15 +01:00
crypto: ecdh - make ecdh_shared_secret unique There is another ecdh_shared_secret in net/bluetooth/ecc.c Fixes: 3c4b23901a0c ("crypto: ecdh - Add ECDH software support") Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-24 16:20:22 +10:00
crypto: ecc - remove unnecessary casts ecc software implementation works with chunks of u64 data. There were some unnecessary casts to u8 and then back to u64 for the ecc keys. This patch removes the unnecessary casts. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-05-25 10:18:05 +03:00
crypto: ecdh - Add ECDH software support * Implement ECDH under kpp API * Provide ECC software support for curve P-192 and P-256. * Add kpp test for ECDH with data generated by OpenSSL Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-22 17:49:15 +01:00
crypto: ecc - Remove stack VLA usage On the quest to remove all VLAs from the kernel[1], this switches to a pair of kmalloc regions instead of using the stack. This also moves the get_random_bytes() after all allocations (and drops the needless "nbytes" variable). [1] https://lkml.org/lkml/2018/3/7/621 Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-03-08 13:57:02 -08:00
crypto: ecdh - Add ECDH software support * Implement ECDH under kpp API * Provide ECC software support for curve P-192 and P-256. * Add kpp test for ECDH with data generated by OpenSSL Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-22 17:49:15 +01:00
crypto: ecc - Remove stack VLA usage On the quest to remove all VLAs from the kernel[1], this switches to a pair of kmalloc regions instead of using the stack. This also moves the get_random_bytes() after all allocations (and drops the needless "nbytes" variable). [1] https://lkml.org/lkml/2018/3/7/621 Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-03-08 13:57:02 -08:00
crypto: ecdh - Add ECDH software support * Implement ECDH under kpp API * Provide ECC software support for curve P-192 and P-256. * Add kpp test for ECDH with data generated by OpenSSL Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-22 17:49:15 +01:00
crypto: ecc - Remove stack VLA usage On the quest to remove all VLAs from the kernel[1], this switches to a pair of kmalloc regions instead of using the stack. This also moves the get_random_bytes() after all allocations (and drops the needless "nbytes" variable). [1] https://lkml.org/lkml/2018/3/7/621 Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-03-08 13:57:02 -08:00
crypto: ecdh - Add ECDH software support * Implement ECDH under kpp API * Provide ECC software support for curve P-192 and P-256. * Add kpp test for ECDH with data generated by OpenSSL Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-22 17:49:15 +01:00
crypto: ecc - Remove stack VLA usage On the quest to remove all VLAs from the kernel[1], this switches to a pair of kmalloc regions instead of using the stack. This also moves the get_random_bytes() after all allocations (and drops the needless "nbytes" variable). [1] https://lkml.org/lkml/2018/3/7/621 Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-03-08 13:57:02 -08:00
crypto: ecdh - Add ECDH software support * Implement ECDH under kpp API * Provide ECC software support for curve P-192 and P-256. * Add kpp test for ECDH with data generated by OpenSSL Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-22 17:49:15 +01:00
crypto: ecc - Remove stack VLA usage On the quest to remove all VLAs from the kernel[1], this switches to a pair of kmalloc regions instead of using the stack. This also moves the get_random_bytes() after all allocations (and drops the needless "nbytes" variable). [1] https://lkml.org/lkml/2018/3/7/621 Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-03-08 13:57:02 -08:00
crypto: ecc - remove unnecessary casts ecc software implementation works with chunks of u64 data. There were some unnecessary casts to u8 and then back to u64 for the ecc keys. This patch removes the unnecessary casts. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-05-25 10:18:05 +03:00
crypto: ecdh - Add ECDH software support * Implement ECDH under kpp API * Provide ECC software support for curve P-192 and P-256. * Add kpp test for ECDH with data generated by OpenSSL Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-22 17:49:15 +01:00
crypto: ecc - remove unnecessary casts ecc software implementation works with chunks of u64 data. There were some unnecessary casts to u8 and then back to u64 for the ecc keys. This patch removes the unnecessary casts. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-05-25 10:18:05 +03:00
crypto: ecdh - Add ECDH software support * Implement ECDH under kpp API * Provide ECC software support for curve P-192 and P-256. * Add kpp test for ECDH with data generated by OpenSSL Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-22 17:49:15 +01:00
crypto: ecc - Remove stack VLA usage On the quest to remove all VLAs from the kernel[1], this switches to a pair of kmalloc regions instead of using the stack. This also moves the get_random_bytes() after all allocations (and drops the needless "nbytes" variable). [1] https://lkml.org/lkml/2018/3/7/621 Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-03-08 13:57:02 -08:00
crypto: ecdh - Add ECDH software support * Implement ECDH under kpp API * Provide ECC software support for curve P-192 and P-256. * Add kpp test for ECDH with data generated by OpenSSL Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-22 17:49:15 +01:00