From fc9c57f54fd28685f7df79e53078e1dc9e44f964 Mon Sep 17 00:00:00 2001
From: Gary Lin <glin@suse.com>
Date: Mon, 25 Aug 2025 16:00:17 +0800
Subject: [PATCH 3/4] libgcrypt/kdf: Remove unsupported KDFs

Clean up _gcry_kdf_*() to remove unsupported KDFs.

Signed-off-by: Gary Lin <glin@suse.com>
---
 grub-core/lib/libgcrypt-grub/cipher/kdf.c | 119 ----------------------
 1 file changed, 119 deletions(-)

diff --git a/grub-core/lib/libgcrypt-grub/cipher/kdf.c b/grub-core/lib/libgcrypt-grub/cipher/kdf.c
index 6e0351d8a..c51a70eff 100644
--- a/grub-core/lib/libgcrypt-grub/cipher/kdf.c
+++ b/grub-core/lib/libgcrypt-grub/cipher/kdf.c
@@ -821,64 +821,6 @@ _gcry_kdf_open (gcry_kdf_hd_t *hd, int algo, int subalgo,
                           key, keylen, ad, adlen);
       break;
 
-    case GCRY_KDF_BALLOON:
-      if (!inputlen || !saltlen || keylen || adlen)
-        ec = GPG_ERR_INV_VALUE;
-      else
-        {
-          (void)key;
-          (void)ad;
-          ec = balloon_open (hd, subalgo, param, paramlen,
-                             input, inputlen, salt, saltlen);
-        }
-      break;
-
-    case GCRY_KDF_ONESTEP_KDF:
-      if (!inputlen || !paramlen || !adlen)
-        ec = GPG_ERR_INV_VALUE;
-      else
-        {
-          (void)salt;
-          (void)key;
-          ec = onestep_kdf_open (hd, subalgo, param, paramlen,
-                                 input, inputlen, ad, adlen);
-        }
-      break;
-
-    case GCRY_KDF_ONESTEP_KDF_MAC:
-      if (!inputlen || !paramlen || !keylen || !adlen)
-        ec = GPG_ERR_INV_VALUE;
-      else
-        {
-          (void)salt;
-          ec = onestep_kdf_mac_open (hd, subalgo, param, paramlen,
-                                     input, inputlen, key, keylen, ad, adlen);
-        }
-      break;
-
-    case GCRY_KDF_HKDF:
-      if (!inputlen || !paramlen)
-        ec = GPG_ERR_INV_VALUE;
-      else
-        {
-          (void)salt;
-          ec = hkdf_open (hd, subalgo, param, paramlen,
-                          input, inputlen, key, keylen, ad, adlen);
-        }
-      break;
-
-    case GCRY_KDF_X963_KDF:
-      if (!inputlen || !paramlen)
-        ec = GPG_ERR_INV_VALUE;
-      else
-        {
-          (void)salt;
-          (void)key;
-          ec = x963_kdf_open (hd, subalgo, param, paramlen,
-                              input, inputlen, ad, adlen);
-        }
-      break;
-
     default:
       ec = GPG_ERR_UNKNOWN_ALGORITHM;
       break;
@@ -898,26 +840,6 @@ _gcry_kdf_compute (gcry_kdf_hd_t h, const struct gcry_kdf_thread_ops *ops)
       ec = argon2_compute ((argon2_ctx_t)(void *)h, ops);
       break;
 
-    case GCRY_KDF_BALLOON:
-      ec = balloon_compute_all ((balloon_ctx_t)(void *)h, ops);
-      break;
-
-    case GCRY_KDF_ONESTEP_KDF:
-      ec = onestep_kdf_compute ((onestep_kdf_ctx_t)(void *)h, ops);
-      break;
-
-    case GCRY_KDF_ONESTEP_KDF_MAC:
-      ec = onestep_kdf_mac_compute ((onestep_kdf_mac_ctx_t)(void *)h, ops);
-      break;
-
-    case GCRY_KDF_HKDF:
-      ec = hkdf_compute ((hkdf_ctx_t)(void *)h, ops);
-      break;
-
-    case GCRY_KDF_X963_KDF:
-      ec = x963_kdf_compute ((x963_kdf_ctx_t)(void *)h, ops);
-      break;
-
     default:
       ec = GPG_ERR_UNKNOWN_ALGORITHM;
       break;
@@ -938,27 +860,6 @@ _gcry_kdf_final (gcry_kdf_hd_t h, size_t resultlen, void *result)
       ec = argon2_final ((argon2_ctx_t)(void *)h, resultlen, result);
       break;
 
-    case GCRY_KDF_BALLOON:
-      ec = balloon_final ((balloon_ctx_t)(void *)h, resultlen, result);
-      break;
-
-    case GCRY_KDF_ONESTEP_KDF:
-      ec = onestep_kdf_final ((onestep_kdf_ctx_t)(void *)h, resultlen, result);
-      break;
-
-    case GCRY_KDF_ONESTEP_KDF_MAC:
-      ec = onestep_kdf_mac_final ((onestep_kdf_mac_ctx_t)(void *)h,
-                                  resultlen, result);
-      break;
-
-    case GCRY_KDF_HKDF:
-      ec = hkdf_final ((hkdf_ctx_t)(void *)h, resultlen, result);
-      break;
-
-    case GCRY_KDF_X963_KDF:
-      ec = x963_kdf_final ((x963_kdf_ctx_t)(void *)h, resultlen, result);
-      break;
-
     default:
       ec = GPG_ERR_UNKNOWN_ALGORITHM;
       break;
@@ -976,26 +877,6 @@ _gcry_kdf_close (gcry_kdf_hd_t h)
       argon2_close ((argon2_ctx_t)(void *)h);
       break;
 
-    case GCRY_KDF_BALLOON:
-      balloon_close ((balloon_ctx_t)(void *)h);
-      break;
-
-    case GCRY_KDF_ONESTEP_KDF:
-      onestep_kdf_close ((onestep_kdf_ctx_t)(void *)h);
-      break;
-
-    case GCRY_KDF_ONESTEP_KDF_MAC:
-      onestep_kdf_mac_close ((onestep_kdf_mac_ctx_t)(void *)h);
-      break;
-
-    case GCRY_KDF_HKDF:
-      hkdf_close ((hkdf_ctx_t)(void *)h);
-      break;
-
-    case GCRY_KDF_X963_KDF:
-      x963_kdf_close ((x963_kdf_ctx_t)(void *)h);
-      break;
-
     default:
       break;
     }
-- 
2.51.0