espressif/mbedtls
1
0
Fork 0
mirror of https://github.com/espressif/mbedtls.git synced 2025-05-09 11:21:21 +08:00
Code Issues Packages Projects Releases Wiki Activity

Bug Fix: mbedtls_ecdsa_verify_restartable fails with ECDSA_SIGN_ALT

Browse Source 
When ECDSA_SIGN_ALT but not ECDSA_VERIFY_ALT, mbedtls_ecdsa_can_do was not being defined causing mbedtls_ecdsa_verify_restartable to always fail

Signed-off-by: JonathanWitthoeft <jonw@gridconnect.com>
This commit is contained in:
JonathanWitthoeft 2023-04-26 10:24:12 -05:00 committed by Mahavir Jain
parent 2ca00d2e19
commit 06ee052ec0
No known key found for this signature in database
GPG Key ID: 99324EF4A00734E0
2 changed files with 16 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
ChangeLog.d/mbedtls_ecdsa_can_do-unconditional-define.txt Normal file
View File

@ -0,0 +1,3 @@
Bugfix
* Fix an error when MBEDTLS_ECDSA_SIGN_ALT is defined but not
MBEDTLS_ECDSA_VERIFY_ALT, causing ecdsa verify to fail. Fixes #7498.

26
library/ecdsa.c
View File

@ -234,6 +234,19 @@ cleanup:
}
#endif /* ECDSA_DETERMINISTIC || !ECDSA_SIGN_ALT || !ECDSA_VERIFY_ALT */
int mbedtls_ecdsa_can_do(mbedtls_ecp_group_id gid)
{
switch (gid) {
#ifdef MBEDTLS_ECP_DP_CURVE25519_ENABLED
case MBEDTLS_ECP_DP_CURVE25519: return 0;
#endif
#ifdef MBEDTLS_ECP_DP_CURVE448_ENABLED
case MBEDTLS_ECP_DP_CURVE448: return 0;
#endif
default: return 1;
}
}
#if !defined(MBEDTLS_ECDSA_SIGN_ALT)
/*
* Compute ECDSA signature of a hashed message (SEC1 4.1.3)
@ -373,19 +386,6 @@ cleanup:
return ret;
}
int mbedtls_ecdsa_can_do(mbedtls_ecp_group_id gid)
{
switch (gid) {
#ifdef MBEDTLS_ECP_DP_CURVE25519_ENABLED
case MBEDTLS_ECP_DP_CURVE25519: return 0;
#endif
#ifdef MBEDTLS_ECP_DP_CURVE448_ENABLED
case MBEDTLS_ECP_DP_CURVE448: return 0;
#endif
default: return 1;
}
}
/*
* Compute ECDSA signature of a hashed message
*/