From 99144ee58b783fc814817cafdd7a971f46eef2aa Mon Sep 17 00:00:00 2001
From: Bill Phipps <bill@wolfssl.com>
Date: Tue, 8 Apr 2025 15:38:49 -0400
Subject: [PATCH] Update Curve448 size to 256 and add uses in Ed

---
 tests/api/test_curve448.c    | 2 +-
 tests/api/test_ed25519.c     | 6 +++---
 wolfssl/wolfcrypt/curve448.h | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/tests/api/test_curve448.c b/tests/api/test_curve448.c
index 0ae3736a8..584b76525 100644
--- a/tests/api/test_curve448.c
+++ b/tests/api/test_curve448.c
@@ -347,7 +347,7 @@ int test_wc_Curve448PrivateKeyToDer(void)
     EXPECT_DECLS;
 #if defined(HAVE_CURVE448) && defined(HAVE_CURVE448_KEY_EXPORT) && \
     (defined(WOLFSSL_CERT_GEN) || defined(WOLFSSL_KEY_GEN))
-    byte      output[ONEK_BUF];
+    byte      output[CURVE448_BUFSIZE];
     curve448_key curve448PrivKey;
     WC_RNG    rng;
     word32    inLen;
diff --git a/tests/api/test_ed25519.c b/tests/api/test_ed25519.c
index 884d4e1ed..acd9f3b0e 100644
--- a/tests/api/test_ed25519.c
+++ b/tests/api/test_ed25519.c
@@ -481,7 +481,7 @@ int test_wc_Ed25519PublicKeyToDer(void)
 #if defined(HAVE_ED25519) && defined(HAVE_ED25519_KEY_EXPORT) && \
     (defined(WOLFSSL_CERT_GEN) || defined(WOLFSSL_KEY_GEN))
     ed25519_key key;
-    byte        derBuf[1024];
+    byte        derBuf[CURVE25519_BUFSIZE];
 
     XMEMSET(&key, 0, sizeof(ed25519_key));
 
@@ -523,7 +523,7 @@ int test_wc_Ed25519KeyToDer(void)
     EXPECT_DECLS;
 #if defined(HAVE_ED25519) && defined(HAVE_ED25519_KEY_EXPORT) && \
     (defined(WOLFSSL_CERT_GEN) || defined(WOLFSSL_KEY_GEN))
-    byte        output[ONEK_BUF];
+    byte        output[CURVE25519_BUFSIZE];
     ed25519_key ed25519Key;
     WC_RNG      rng;
     word32      inLen;
@@ -563,7 +563,7 @@ int test_wc_Ed25519PrivateKeyToDer(void)
     EXPECT_DECLS;
 #if defined(HAVE_ED25519) && defined(HAVE_ED25519_KEY_EXPORT) && \
     (defined(WOLFSSL_CERT_GEN) || defined(WOLFSSL_KEY_GEN))
-    byte        output[ONEK_BUF];
+    byte        output[CURVE25519_BUFSIZE];
     ed25519_key ed25519PrivKey;
     WC_RNG      rng;
     word32      inLen;
diff --git a/wolfssl/wolfcrypt/curve448.h b/wolfssl/wolfcrypt/curve448.h
index d5043a2c1..a7ddd454b 100644
--- a/wolfssl/wolfcrypt/curve448.h
+++ b/wolfssl/wolfcrypt/curve448.h
@@ -44,7 +44,7 @@
 #define CURVE448_PUB_KEY_SIZE    56
 
 enum {
-    CURVE448_BUFSIZE = 128,  /* for DER exported keys temp buffer */
+    CURVE448_BUFSIZE = 256,  /* for DER exported keys temp buffer */
 
     WOLF_ENUM_DUMMY_LAST_ELEMENT(CURVE448)
 };