pitrou commented on code in PR #43413:
URL: https://github.com/apache/arrow/pull/43413#discussion_r1722944331
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cpp/src/parquet/encryption/encryption_internal.cc:
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@@ -758,9 +795,14 @@ void QuickUpdatePageAad(int32_t new_page_ordinal,
std::string* AAD) {
std::memcpy(AAD->data() + AAD->length() - 2, page_ordinal_bytes.data(), 2);
}
-void RandBytes(unsigned char* buf, int num) {
+void RandBytes(unsigned char* buf, size_t num) {
+ if (num > static_cast<size_t>(std::numeric_limits<int>::max())) {
Review Comment:
Note we could easily call `RAND_bytes` in a loop, but we don't have a use
case for generating cryptographic random data that large anyway.
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