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Merge pull request #4641 from anhu/priv_key_check

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Actually do a private/public key check for FALCON.
This commit is contained in:
David Garske
2021-12-10 06:53:35 -08:00
committed by GitHub
parent b921161309 6b5fa9d0ae
commit 65a0b71994
3 changed files with 9 additions and 10 deletions
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7
wolfcrypt/src/asn.c
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@@ -6231,9 +6231,7 @@ int wc_CheckPrivateKey(const byte* privKey, word32 privKeySz,
keyIdx = 0;
if ((ret = wc_falcon_import_public(pubKey, pubKeySz,
key_pair)) == 0) {
/* public and private extracted successfully no check if is
* a pair and also do sanity checks on key. wc_ecc_check_key
* checks that private * base generator equals pubkey */
/* Public and private extracted successfully. Sanity check. */
if ((ret = wc_falcon_check_key(key_pair)) == 0)
ret = 1;
}
@@ -28203,8 +28201,7 @@ int wc_Falcon_PrivateKeyDecode(const byte* input, word32* inOutIdx,
pubKey, &pubKeyLen, keytype);
if (ret == 0) {
if (pubKeyLen == 0) {
ret = wc_falcon_import_private_only(privKey, privKeyLen,
key);
ret = wc_falcon_import_private_only(input, inSz, key);
}
else {
ret = wc_falcon_import_private_key(privKey, privKeyLen,

10
wolfcrypt/src/falcon.c
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@@ -588,10 +588,12 @@ int wc_falcon_export_key(falcon_key* key, byte* priv, word32 *privSz,
*/
int wc_falcon_check_key(falcon_key* key)
{
/* Might want to try to sign and verify a random message here. */
int ret = 0;
(void)key;
return ret;
if (key == NULL) {
return BAD_FUNC_ARG;
}
/* Assume everything is fine. */
return 0;
}
/* Returns the size of a falcon private key.

2
wolfssl/wolfcrypt/falcon.h
View File

@@ -51,7 +51,7 @@
#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_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_PUB_KEY_SIZE FALCON_LEVEL5_PUB_KEY_SIZE
#define FALCON_MAX_PRV_KEY_SIZE FALCON_LEVEL5_PRV_KEY_SIZE