mbedtls: Specify key length with TF-M

Patater · Patater · commit 0cf680593c79 · 2020-07-22T17:03:51.000+01:00
When using TF-M, be sure to specify the length of the key. Fixes: 0961f31 ("Make PSA util compatible with Mbed Crypto 3.0.1")
diff --git a/features/mbedtls/inc/mbedtls/psa_util.h b/features/mbedtls/inc/mbedtls/psa_util.h
@@ -452,6 +452,7 @@ static inline psa_key_type_t mbedtls_psa_parse_tls_ecc_group(
     uint16_t tls_ecc_grp_reg_id, size_t *bits )
 {
 #if TARGET_TFM
+    *bits = PSA_ECC_CURVE_BITS( tls_ecc_grp_reg_id );
     return( (psa_ecc_curve_t) tls_ecc_grp_reg_id );
 #else
     const mbedtls_ecp_curve_info *curve_info =

Original file line number	Diff line number	Diff line change
`@@ -452,6 +452,7 @@ static inline psa_key_type_t mbedtls_psa_parse_tls_ecc_group(`
`452`	`452`	`uint16_t tls_ecc_grp_reg_id, size_t *bits )`
`453`	`453`	`{`
`454`	`454`	`#if TARGET_TFM`
	`455`	`+ *bits = PSA_ECC_CURVE_BITS( tls_ecc_grp_reg_id );`
`455`	`456`	`return( (psa_ecc_curve_t) tls_ecc_grp_reg_id );`
`456`	`457`	`#else`
`457`	`458`	`const mbedtls_ecp_curve_info *curve_info =`