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Bug Fix: mbedtls_ecdsa_verify_restartable fails with ECDSA_SIGN_ALT

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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
parent 91a618375a
commit 405ec94ea2
1 changed files with 18 additions and 13 deletions
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31
library/ecdsa.c
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@ -234,6 +234,24 @@ cleanup:
} }
#endif /* ECDSA_DETERMINISTIC || !ECDSA_SIGN_ALT || !ECDSA_VERIFY_ALT */ #endif /* ECDSA_DETERMINISTIC || !ECDSA_SIGN_ALT || !ECDSA_VERIFY_ALT */
#if !defined(MBEDTLS_ECDSA_SIGN_ALT) || \
!defined(MBEDTLS_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;
}
}
#endif /* !ECDSA_SIGN_ALT || !ECDSA_VERIFY_ALT */
#if !defined(MBEDTLS_ECDSA_SIGN_ALT) #if !defined(MBEDTLS_ECDSA_SIGN_ALT)
/* /*
* Compute ECDSA signature of a hashed message (SEC1 4.1.3) * Compute ECDSA signature of a hashed message (SEC1 4.1.3)
@ -373,19 +391,6 @@ cleanup:
return ret; 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 * Compute ECDSA signature of a hashed message
*/ */