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ext-info handling for server-sig-algs

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only client side is handled
This commit is contained in:
Matt Johnston
2020-05-19 00:31:41 +08:00
parent 972d723484
commit 5acee497bf
16 changed files with 255 additions and 90 deletions
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4
fuzzer-verify.c
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@@ -29,7 +29,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
sign_key *key = new_sign_key();
enum signkey_type keytype = DROPBEAR_SIGNKEY_ANY;
if (buf_get_pub_key(fuzz.input, key, &keytype) == DROPBEAR_SUCCESS) {
enum signature_type sigtype = (enum signature_type)keytype;
enum signature_type sigtype;
if (keytype == DROPBEAR_SIGNKEY_RSA) {
/* Flip a coin to decide rsa signature type */
int flag = buf_getbyte(fuzz_input);
@@ -38,6 +38,8 @@ int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
} else {
sigtype = DROPBEAR_SIGNATURE_RSA_SHA1;
}
} else {
sigtype = signature_type_from_signkey(keytype);
}
if (buf_verify(fuzz.input, key, sigtype, verifydata) == DROPBEAR_SUCCESS) {
/* The fuzzer is capable of generating keys with a signature to match.