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fix typo

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This commit is contained in:
Hideki Miyazaki
2026-04-10 06:15:11 +09:00
parent 0e14849c31
commit e04fe0c347
2 changed files with 7 additions and 4 deletions
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doc/dox_comments/header_files/signature.h
+5 -2
View File
@@ -15,10 +15,13 @@
WC_SIGNATURE_TYPE_RSA / WC_SIGNATURE_TYPE_RSA_W_ENC.
The caller is responsible for ensuring the pointer refers to the correct
type; this function cannot verify the actual runtime type of the object.
\param key_len If key is non-NULL, key_len Must be exactly sizeof(ecc_key)
\param key_len If key is non-NULL, key_len must be exactly sizeof(ecc_key)
or sizeof(RsaKey) matching the sig_type. Passing any other value
causes the function to return BAD_FUNC_ARG without dereferencing key.
The conventional idiom is to pass sizeof(*key) at the call site.
Always pass the size of the concrete key type at the call site: if you
have a typed pointer (e.g., ecc_key* k), use sizeof(*k); otherwise use
sizeof(ecc_key) or sizeof(RsaKey) directly. Do not use sizeof(*key)
on the const void* parameter itself, as dereferencing void is invalid.
_Example_
\code
wolfcrypt/src/signature.c
+2 -2
View File
@@ -98,7 +98,7 @@ int wc_SignatureGetSize(enum wc_SignatureType sig_type,
* the const void* API cannot verify the actual runtime
* type of the pointed-to object.
* Callers must pass a valid ecc_key* cast to const void*. */
if (key_len == sizeof(ecc_key)) {
if ((size_t)key_len == sizeof(ecc_key)) {
#if defined(HAVE_SELFTEST) || (defined(HAVE_FIPS) && FIPS_VERSION3_LT(5,0,0))
sig_len = wc_ecc_sig_size((ecc_key*)(wc_ptr_t)key);
#else
@@ -119,7 +119,7 @@ int wc_SignatureGetSize(enum wc_SignatureType sig_type,
/* Verify that key_len matches exactly sizeof(RsaKey).
* Same caveat as the ECC case above: size equality is necessary
* but not sufficient; the caller must pass a valid RsaKey*. */
if (key_len == sizeof(RsaKey)) {
if ((size_t)key_len == sizeof(RsaKey)) {
#if defined(HAVE_SELFTEST) || (defined(HAVE_FIPS) && FIPS_VERSION3_LT(5,0,0))
sig_len = wc_RsaEncryptSize((RsaKey*)(wc_ptr_t)key);
#else