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Actually do a private/public key check for FALCON.

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This commit is contained in:
Anthony Hu
2021-12-08 18:04:11 -05:00
parent dac0c21989
commit 7022eb6f89
3 changed files with 17 additions and 5 deletions
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3
wolfcrypt/src/asn.c
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@ -28158,8 +28158,7 @@ int wc_Falcon_PrivateKeyDecode(const byte* input, word32* inOutIdx,
pubKey, &pubKeyLen, keytype); pubKey, &pubKeyLen, keytype);
if (ret == 0) { if (ret == 0) {
if (pubKeyLen == 0) { if (pubKeyLen == 0) {
ret = wc_falcon_import_private_only(privKey, privKeyLen, ret = wc_falcon_import_private_only(input, inSz, key);
key);
} }
else { else {
ret = wc_falcon_import_private_key(privKey, privKeyLen, ret = wc_falcon_import_private_key(privKey, privKeyLen,

17
wolfcrypt/src/falcon.c
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@ -588,9 +588,22 @@ int wc_falcon_export_key(falcon_key* key, byte* priv, word32 *privSz,
*/ */
int wc_falcon_check_key(falcon_key* key) int wc_falcon_check_key(falcon_key* key)
{ {
/* Might want to try to sign and verify a random message here. */ /* Sign and verify a message. */
int ret = 0; int ret = 0;
(void)key; int res = 0;
byte msg[] = "The wolfSSL team is here to make you ready for quantum computers!!";
word32 msglen = sizeof(msg);
byte sig[FALCON_MAX_SIG_SIZE];
word32 siglen = sizeof(sig);
ret = wc_falcon_sign_msg(msg, msglen, sig, &siglen, key);
if (ret == 0) {
ret = wc_falcon_verify_msg(sig, siglen, msg, msglen, &res, key);
if ((ret != 0) || (res != 1)) {
ret = SIG_VERIFY_E;
}
}
return ret; return ret;
} }

2
wolfssl/wolfcrypt/falcon.h
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@ -51,7 +51,7 @@
#define FALCON_LEVEL5_PUB_KEY_SIZE OQS_SIG_falcon_1024_length_public_key #define FALCON_LEVEL5_PUB_KEY_SIZE OQS_SIG_falcon_1024_length_public_key
#define FALCON_LEVEL5_PRV_KEY_SIZE (FALCON_LEVEL5_PUB_KEY_SIZE+FALCON_LEVEL5_KEY_SIZE) #define FALCON_LEVEL5_PRV_KEY_SIZE (FALCON_LEVEL5_PUB_KEY_SIZE+FALCON_LEVEL5_KEY_SIZE)
#define FALCON_MAX_KEY_SIZE FALCON_LEVEL5_KEY_SIZE #define FALCON_MAX_KEY_SIZE FALCON_LEVEL5_PRV_KEY_SIZE
#define FALCON_MAX_SIG_SIZE FALCON_LEVEL5_SIG_SIZE #define FALCON_MAX_SIG_SIZE FALCON_LEVEL5_SIG_SIZE
#define FALCON_MAX_PUB_KEY_SIZE FALCON_LEVEL5_PUB_KEY_SIZE #define FALCON_MAX_PUB_KEY_SIZE FALCON_LEVEL5_PUB_KEY_SIZE
#define FALCON_MAX_PRV_KEY_SIZE FALCON_LEVEL5_PRV_KEY_SIZE #define FALCON_MAX_PRV_KEY_SIZE FALCON_LEVEL5_PRV_KEY_SIZE