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Fix mbedtls_pk_get_bitlen() for RSA with non-byte-aligned sizes

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Add non-regression tests. Update some test functions to not assume that
byte_length == bit_length / 8.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2024-02-01 22:33:06 +01:00
parent 19f1adfc69
commit 92fb604139
6 changed files with 51 additions and 9 deletions
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2
library/pk_wrap.c
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@ -58,7 +58,7 @@ static int rsa_can_do(mbedtls_pk_type_t type)
static size_t rsa_get_bitlen(mbedtls_pk_context *pk)
{
const mbedtls_rsa_context *rsa = (const mbedtls_rsa_context *) pk->pk_ctx;
return 8 * mbedtls_rsa_get_len(rsa);
return mbedtls_rsa_get_bitlen(rsa);
}
#if defined(MBEDTLS_USE_PSA_CRYPTO)