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Implement PK Opaque RSA decrypt

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Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
This commit is contained in:
Neil Armstrong 2022-04-22 15:02:27 +02:00
parent 068a13d909
commit 1082818003
1 changed files with 31 additions and 1 deletions
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32
library/pk_wrap.c
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@ -1602,6 +1602,32 @@ const mbedtls_pk_info_t mbedtls_pk_ecdsa_opaque_info = {
NULL, /* debug - could be done later, or even left NULL */ NULL, /* debug - could be done later, or even left NULL */
}; };
#if defined(MBEDTLS_RSA_C)
static int pk_opaque_rsa_decrypt( void *ctx,
const unsigned char *input, size_t ilen,
unsigned char *output, size_t *olen, size_t osize,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
const mbedtls_svc_key_id_t *key = (const mbedtls_svc_key_id_t *) ctx;
psa_status_t status;
/* PSA has its own RNG */
(void) f_rng;
(void) p_rng;
status = psa_asymmetric_decrypt( *key, PSA_ALG_RSA_PKCS1V15_CRYPT,
input, ilen,
NULL, 0,
output, osize, olen );
if( status != PSA_SUCCESS )
{
return( mbedtls_pk_error_from_psa_rsa( status ) );
}
return 0;
}
#endif
const mbedtls_pk_info_t mbedtls_pk_rsa_opaque_info = { const mbedtls_pk_info_t mbedtls_pk_rsa_opaque_info = {
MBEDTLS_PK_OPAQUE, MBEDTLS_PK_OPAQUE,
"Opaque", "Opaque",
@ -1613,7 +1639,11 @@ const mbedtls_pk_info_t mbedtls_pk_rsa_opaque_info = {
NULL, /* restartable verify - not relevant */ NULL, /* restartable verify - not relevant */
NULL, /* restartable sign - not relevant */ NULL, /* restartable sign - not relevant */
#endif #endif
NULL, /* decrypt - will be done later */ #if defined(MBEDTLS_RSA_C)
pk_opaque_rsa_decrypt,
#else
NULL, /* decrypt */
#endif /* MBEDTLS_RSA_C */
NULL, /* encrypt - will be done later */ NULL, /* encrypt - will be done later */
NULL, /* check_pair - could be done later or left NULL */ NULL, /* check_pair - could be done later or left NULL */
pk_opaque_alloc_wrap, pk_opaque_alloc_wrap,