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Add unit tests for fix_negative

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Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine
2021-04-03 21:47:53 +02:00
parent 80ba850e27
commit 618be2ec41
4 changed files with 182 additions and 2 deletions
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14
library/ecp_invasive.h
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@ -31,6 +31,20 @@
#if defined(MBEDTLS_TEST_HOOKS) && defined(MBEDTLS_ECP_C)
#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) || \
defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) || \
defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
/* Preconditions:
* - bits is a multiple of 64 or is 224
* - c is -1 or -2
* - 0 <= N < 2^bits
* - N has room for bits+64 bits
*
* Set N to c * 2^bits + N.
*/
void mbedtls_ecp_fix_negative( mbedtls_mpi *N, signed char c, size_t bits );
#endif
#endif /* MBEDTLS_TEST_HOOKS && MBEDTLS_ECP_C */
#endif /* MBEDTLS_ECP_INVASIVE_H */