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Merge pull request #606 from padelsbach/fix-ecc-verify 

Minor fixes in ecc-verify example
pull/611/head
Emma Stensland 2026-07-21 16:37:18 -06:00 committed by GitHub
parent 478701b8b8 8eebbe0600
commit dc6a012c30
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GPG Key ID: B5690EEEBB952194
1 changed files with 15 additions and 1 deletions
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16
ecc/ecc-verify.c
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@ -25,6 +25,9 @@
#include <wolfssl/wolfcrypt/random.h> #include <wolfssl/wolfcrypt/random.h>
#include <wolfssl/wolfcrypt/ecc.h> #include <wolfssl/wolfcrypt/ecc.h>
#include <wolfssl/wolfcrypt/asn_public.h> #include <wolfssl/wolfcrypt/asn_public.h>
#include <wolfssl/wolfcrypt/error-crypt.h>
#include <stdio.h>
#if defined(WOLFSSL_CUSTOM_CURVES) && defined(HAVE_ECC_KOBLITZ) #if defined(WOLFSSL_CUSTOM_CURVES) && defined(HAVE_ECC_KOBLITZ)
@ -45,12 +48,18 @@ int hash_firmware_verify(const byte* fwAddr, word32 fwLen, const byte* sigBuf, w
0x1c, 0x8a, 0x80, 0x0d, 0x79, 0x57, 0xe6, 0x6e, 0x3d, 0x73, 0x4a, 0xf1, 0xe1, 0xd2, 0x6f, 0x2b, 0x1c, 0x8a, 0x80, 0x0d, 0x79, 0x57, 0xe6, 0x6e, 0x3d, 0x73, 0x4a, 0xf1, 0xe1, 0xd2, 0x6f, 0x2b,
0x51, 0xd0, 0xa8, 0x89, 0xa0, 0x58, 0xff, 0xbd 0x51, 0xd0, 0xa8, 0x89, 0xa0, 0x58, 0xff, 0xbd
}; };
int pos, verify; int pos, verify = 0;
ret = wc_InitSha256(&sha); ret = wc_InitSha256(&sha);
if (ret != 0) if (ret != 0)
return ret; return ret;
ret = wc_ecc_init(&eccKey);
if (ret != 0) {
wc_Sha256Free(&sha);
return ret;
}
pos = 0; pos = 0;
while (fwLen > 0) { while (fwLen > 0) {
word32 len = fwLen; word32 len = fwLen;
@ -83,7 +92,12 @@ int hash_firmware_verify(const byte* fwAddr, word32 fwLen, const byte* sigBuf, w
if (ret < 0) if (ret < 0)
goto exit; goto exit;
/* a good return code only means the check ran, not that it passed */
if (verify != 1)
ret = SIG_VERIFY_E;
exit: exit:
wc_ecc_free(&eccKey);
wc_Sha256Free(&sha); wc_Sha256Free(&sha);
return ret; return ret;