From 625a97a07b2e77da75c53eb7e8d8c8579f7c529c Mon Sep 17 00:00:00 2001
From: Brian Smith <brian@briansmith.org>
Date: Sun, 19 Jan 2025 13:11:58 -0800
Subject: [PATCH] rsa: Make modulus length limit independent of internal
 limits.

Even if we make arithmetic's limits larger, we don't want to change
rsa's limits.
---
 src/rsa.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/rsa.rs b/src/rsa.rs
index 53e5ff9ffd..0380d1d8a2 100644
--- a/src/rsa.rs
+++ b/src/rsa.rs
@@ -23,13 +23,13 @@ use crate::{
     arithmetic::bigint,
     bits, error,
     io::{self, der},
-    limb,
 };
 
 pub(crate) mod padding;
 
 // Maximum RSA modulus size supported for signature verification (in bytes).
-const PUBLIC_KEY_PUBLIC_MODULUS_MAX_LEN: usize = bigint::MODULUS_MAX_LIMBS * limb::LIMB_BYTES;
+const PUBLIC_KEY_PUBLIC_MODULUS_MAX_LEN: usize =
+    bits::BitLength::from_bits(8192).as_usize_bytes_rounded_up();
 
 // Keep in sync with the documentation comment for `KeyPair`.
 const PRIVATE_KEY_PUBLIC_MODULUS_MAX_BITS: bits::BitLength = bits::BitLength::from_bits(4096);