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M487: Fix crypto h/w port #15289

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merged 2 commits into from
May 30, 2022
Merged

M487: Fix crypto h/w port #15289

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3adb735
M487: Fix typo with DES H/W port
ccli8 May 24, 2022
b402c97
M487: Fix ECP P + P operation
ccli8 May 24, 2022
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2 changes: 1 addition & 1 deletion connectivity/drivers/mbedtls/TARGET_NUVOTON/TARGET_M480/des/des_alt.c
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Original file line number Diff line number Diff line change
Expand Up @@ -375,7 +375,7 @@ static int mbedtls_des_docrypt(uint16_t keyopt, uint8_t key[3][MBEDTLS_DES_KEY_S
* 1. BE for byte sequence in word
* 2. BE for word sequence in double-word
*/
TDES_Open(CRPT
TDES_Open(CRPT,
0, // Channel number (0~4)
enc, // 0: decode, 1: encode
(tdes_opmode & CRPT_TDES_CTL_TMODE_Msk) ? 1 : 0, // 0: DES, 1: TDES
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5 changes: 5 additions & 0 deletions connectivity/drivers/mbedtls/TARGET_NUVOTON/TARGET_M480/ecp/ecp_internal_alt.c
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Expand Up @@ -502,6 +502,11 @@ NU_STATIC int internal_run_eccop(const mbedtls_ecp_group *grp,
return MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED;
}

/* NOTE: Engine doesn't support P + Q when P and Q are the same. Workaround by 2*P */
if (mbedtls_ecp_point_cmp(P, Q) == 0) {
return internal_run_eccop(grp, R, NULL, P, NULL, NULL, ECCOP_POINT_DOUBLE);
}

int ret;
bool ecc_done;

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