ltc: allow usage of rand_bn functions for ECC builds

To be able to backport [1] we have to enable the "rand_bn" functions.

Link: [1] https://github.com/libtom/libtomcrypt/commit/f0a51bbdbd50e03a439

ltc: allow usage of rand_bn functions for ECC builds

To be able to backport [1] we have to enable the "rand_bn" functions.

Link: [1] https://github.com/libtom/libtomcrypt/commit/f0a51bbdbd50e03a43914c9ee912c451b6ad82e5

Signed-off-by: Joakim Bech <joakim.bech@linaro.org>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>

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core: crypto: libtomcrypt: fix LTC_CLEAN_STACK bug

LTC_CLEAN_STACK uses burn_stack() API that uses a recursive call which
leads to approx. double the size of stack cleaned than expected on ARM64,
be

core: crypto: libtomcrypt: fix LTC_CLEAN_STACK bug

LTC_CLEAN_STACK uses burn_stack() API that uses a recursive call which
leads to approx. double the size of stack cleaned than expected on ARM64,
because it consumes stack space in 32-byte chunks and assumes only buf
is pushed onto the stack while ignoring any other data such as lr, fp,
etc.. This causes stack overflow corrupting canaries in case we perform
a SHA512 hash operation which utilizes maximum stack as compared to other
libtomcrypt APIs. So get rid of this recursive call via using variable
length array to clean stack.

Also, convert zeromem() API as a wrapper to call memzero_explicit().

Fixes: ad565116a0d7 ("core: crypto: libtomcrypt: enable LTC_CLEAN_STACK")
Suggested-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>

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core: add system wide mempool_default

Adds system wide mempool_default for temporary large memory allocations.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Etienne Carriere

core: add system wide mempool_default

Adds system wide mempool_default for temporary large memory allocations.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: crypto: libtomcrypt: enable LTC_CLEAN_STACK

Enables LTC_CLEAN_STACK so that LibTomCrypt will wipe key material and
other sensitive data once no longer used.

Signed-off-by: Jerome Forissier <j

core: crypto: libtomcrypt: enable LTC_CLEAN_STACK

Enables LTC_CLEAN_STACK so that LibTomCrypt will wipe key material and
other sensitive data once no longer used.

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Suggested-by: Bastien Simondi <bsimondi@netflix.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Joakim Bech <joakim.bech@linaro.org>

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core: remove flags argument from tee_pager_alloc()

Removes the flags argument from tee_pager_alloc() since it's only used
with TEE_MATTR_LOCKED. The exception is the bignum pool, but since it
still

core: remove flags argument from tee_pager_alloc()

Removes the flags argument from tee_pager_alloc() since it's only used
with TEE_MATTR_LOCKED. The exception is the bignum pool, but since it
still releases all locked pages each time the pool becomes unused it's
efficient usage of memory.

Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: ltc: fix preallocation of MPI bignums

Fixes the preallocation to make room for the actual content also in
crypto_bignum_allocate() by calling mbedtls_mpi_grow().

Acked-by: Etienne Carriere <e

core: ltc: fix preallocation of MPI bignums

Fixes the preallocation to make room for the actual content also in
crypto_bignum_allocate() by calling mbedtls_mpi_grow().

Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: ltc: add tomcrypt_init() when not crypto lib

Adds tomcrypt_init() which is only available when LTC isn't configured
as the crypto lib. tomcrypt_init() performs the same initialization as
crypt

core: ltc: add tomcrypt_init() when not crypto lib

Adds tomcrypt_init() which is only available when LTC isn't configured
as the crypto lib. tomcrypt_init() performs the same initialization as
crypto_init() does when LTC is configured as the crypto lib.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: tomcrypt.c: conditionally init for aciphers

Adds #if defined(_CFG_CORE_LTC_ACIPHER) around code only needed if LTC
is configured for asymmetric ciphers (RSA, DSA, DH or ECC).

Acked-by: Jerome

core: tomcrypt.c: conditionally init for aciphers

Adds #if defined(_CFG_CORE_LTC_ACIPHER) around code only needed if LTC
is configured for asymmetric ciphers (RSA, DSA, DH or ECC).

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: LTC use only _CFG_CORE_LTC_ variables

LTC is only taking _CFG_CORE_LTC_ prefixed variables into account for
configuration.

_CFG_CORE_LTC_ prefixed variables are assigned based on CFG_CRYPTO_

core: LTC use only _CFG_CORE_LTC_ variables

LTC is only taking _CFG_CORE_LTC_ prefixed variables into account for
configuration.

_CFG_CORE_LTC_ prefixed variables are assigned based on CFG_CRYPTO_ and
other variables for unchanged LTC configuration.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: ltc: tomcrypt.c: remove unused includes

Removes #include of files not needed any longer.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander

core: ltc: tomcrypt.c: remove unused includes

Removes #include of files not needed any longer.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: ltc: rename prng_mpa to prng_crypto

Changes the name of the registered prng descriptor from "prng_mpa" to
"prng_crypto" to better reflect the source of the prng.

Acked-by: Jerome Forissier <j

core: ltc: rename prng_mpa to prng_crypto

Changes the name of the registered prng descriptor from "prng_mpa" to
"prng_crypto" to better reflect the source of the prng.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: ltc: move remaining external files from src

Moves the remaining external source files from tomcrypt src directory.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens

core: ltc: move remaining external files from src

Moves the remaining external source files from tomcrypt src directory.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: ltc: move remaining exported aes functions

Moves remaining exported aes functions to aes.c

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wikland

core: ltc: move remaining exported aes functions

Moves remaining exported aes functions to aes.c

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: ltc: move remaining exported hash functions

Moves remaining exported hash functions to hash.c

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wikl

core: ltc: move remaining exported hash functions

Moves remaining exported hash functions to hash.c

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: ltc: move dh wrappers to separate file

Moves the DH wrappers in tee_ltc_provider.c to its own file, dh.c.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklande

core: ltc: move dh wrappers to separate file

Moves the DH wrappers in tee_ltc_provider.c to its own file, dh.c.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: ltc: move rsa wrappers to separate file

Moves the RSA wrappers in tee_ltc_provider.c to its own file, rsa.c.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wikla

core: ltc: move rsa wrappers to separate file

Moves the RSA wrappers in tee_ltc_provider.c to its own file, rsa.c.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: ltc: move ecc wrappers to separate file

Moves the ECC wrappers in tee_ltc_provider.c to its own file, ecc.c.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wikla

core: ltc: move ecc wrappers to separate file

Moves the ECC wrappers in tee_ltc_provider.c to its own file, ecc.c.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: ltc: move dsa wrappers to separate file

Moves the DSA wrappers in tee_ltc_provider.c to its own file, dsa.c.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wikla

core: ltc: move dsa wrappers to separate file

Moves the DSA wrappers in tee_ltc_provider.c to its own file, dsa.c.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: ltc: dsa_import() use inlen instead of MAX_RSA_SIZE

Upstream has changed dsa_import() to use inlen instead of MAX_RSA_SIZE.
This is needed when compiling LTC with DSA but without RSA support.

core: ltc: dsa_import() use inlen instead of MAX_RSA_SIZE

Upstream has changed dsa_import() to use inlen instead of MAX_RSA_SIZE.
This is needed when compiling LTC with DSA but without RSA support.

Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: add encrypt key length in AES encrypt API

Adds size of expanded AES encryption key to crypto_aes_expand_enc_key()
and crypto_aes_enc_block() to make the functions more safe to call.

Reviewed-

core: add encrypt key length in AES encrypt API

Adds size of expanded AES encryption key to crypto_aes_expand_enc_key()
and crypto_aes_enc_block() to make the functions more safe to call.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Summer Qin <summer.qin@arm.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: crypto: move AES-CTS wrappers from libtomcrypt/ to crypto/

Moves the AES-CTS implementation from LTC wrapper to core/crypto.

The AES-CTS implementation can be overridden in a crypto library b

core: crypto: move AES-CTS wrappers from libtomcrypt/ to crypto/

Moves the AES-CTS implementation from LTC wrapper to core/crypto.

The AES-CTS implementation can be overridden in a crypto library by
setting CFG_CRYPTO_CTS_FROM_CRYPTOLIB:=y

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: crypto: introduce struct crypto_authenc_ops

Uses struct crypto_authenc_ops pointer in crypto context for authenc
ciphers (AES-GCM and AES-CCM) as a glue layer instead of a switch(algo)
in each

core: crypto: introduce struct crypto_authenc_ops

Uses struct crypto_authenc_ops pointer in crypto context for authenc
ciphers (AES-GCM and AES-CCM) as a glue layer instead of a switch(algo)
in each cryto_authenc_*() function.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: crypto: introduce struct crypto_cipher_ops

Uses struct crypto_cipher_ops pointer in crypto context for ciphers as a
glue layer instead of a switch(algo) in each crypto_cipher_*() function.

Re

core: crypto: introduce struct crypto_cipher_ops

Uses struct crypto_cipher_ops pointer in crypto context for ciphers as a
glue layer instead of a switch(algo) in each crypto_cipher_*() function.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: crypto: introduce struct crypto_mac_ops

Uses struct crypto_mac_ops pointer in crypto context for MACs as a
glue layer instead of a switch(algo) in each crypto_mac_*() function.

Moves CBC-MAC

core: crypto: introduce struct crypto_mac_ops

Uses struct crypto_mac_ops pointer in crypto context for MACs as a
glue layer instead of a switch(algo) in each crypto_mac_*() function.

Moves CBC-MAC implementation from LTC wrapper to core/crypto.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: crypto: introduce struct crypto_hash_ops

Uses struct crypto_hash_ops pointer in crypto context for hashes as a
glue layer instead of a switch(algo) in each crypto_hash_*() function.

Reviewed-

core: crypto: introduce struct crypto_hash_ops

Uses struct crypto_hash_ops pointer in crypto context for hashes as a
glue layer instead of a switch(algo) in each crypto_hash_*() function.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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