Merge tag 'libcrypto-updates-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux

Pull crypto library updates from Eric Biggers:
 "This is the main crypto library pull request for 6.19. It includes:

   - Add SHA-3 support to lib/crypto/, including support for both the
     hash functions and the extendable-output functions. Reimplement the
     existing SHA-3 crypto_shash support on top of the library.

     This is motivated mainly by the upcoming support for the ML-DSA
     signature algorithm, which needs the SHAKE128 and SHAKE256
     functions. But even on its own it's a useful cleanup.

     This also fixes the longstanding issue where the
     architecture-optimized SHA-3 code was disabled by default.

   - Add BLAKE2b support to lib/crypto/, and reimplement the existing
     BLAKE2b crypto_shash support on top of the library.

     This is motivated mainly by btrfs, which supports BLAKE2b
     checksums. With this change, all btrfs checksum algorithms now have
     library APIs. btrfs is planned to start just using the library
     directly.

     This refactor also improves consistency between the BLAKE2b code
     and BLAKE2s code. And as usual, it also fixes the issue where the
     architecture-optimized BLAKE2b code was disabled by default.

   - Add POLYVAL support to lib/crypto/, replacing the existing POLYVAL
     support in crypto_shash. Reimplement HCTR2 on top of the library.

     This simplifies the code and improves HCTR2 performance. As usual,
     it also makes the architecture-optimized code be enabled by
     default. The generic implementation of POLYVAL is greatly improved
     as well.

   - Clean up the BLAKE2s code

   - Add FIPS self-tests for SHA-1, SHA-2, and SHA-3"

* tag 'libcrypto-updates-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux: (37 commits)
  fscrypt: Drop obsolete recommendation to enable optimized POLYVAL
  crypto: polyval - Remove the polyval crypto_shash
  crypto: hctr2 - Convert to use POLYVAL library
  lib/crypto: x86/polyval: Migrate optimized code into library
  lib/crypto: arm64/polyval: Migrate optimized code into library
  lib/crypto: polyval: Add POLYVAL library
  crypto: polyval - Rename conflicting functions
  lib/crypto: x86/blake2s: Use vpternlogd for 3-input XORs
  lib/crypto: x86/blake2s: Avoid writing back unchanged 'f' value
  lib/crypto: x86/blake2s: Improve readability
  lib/crypto: x86/blake2s: Use local labels for data
  lib/crypto: x86/blake2s: Drop check for nblocks == 0
  lib/crypto: x86/blake2s: Fix 32-bit arg treated as 64-bit
  lib/crypto: arm, arm64: Drop filenames from file comments
  lib/crypto: arm/blake2s: Fix some comments
  crypto: s390/sha3 - Remove superseded SHA-3 code
  crypto: sha3 - Reimplement using library API
  crypto: jitterentropy - Use default sha3 implementation
  lib/crypto: s390/sha3: Add optimized one-shot SHA-3 digest functions
  lib/crypto: sha3: Support arch overrides of one-shot digest functions
  ...

1 files changed, 19 insertions, 20 deletions

diff --git a/lib/crypto/tests/blake2s_kunit.c b/lib/crypto/tests/blake2s_kunit.c
index 057c40132246..6832d9aa7b82 100644
--- a/lib/crypto/tests/blake2s_kunit.c
+++ b/lib/crypto/tests/blake2s_kunit.c
@@ -14,12 +14,12 @@
 static void blake2s_default(const u8 *data, size_t len,
 			    u8 out[BLAKE2S_HASH_SIZE])
 {
-	blake2s(out, data, NULL, BLAKE2S_HASH_SIZE, len, 0);
+	blake2s(NULL, 0, data, len, out, BLAKE2S_HASH_SIZE);
 }
 
-static void blake2s_init_default(struct blake2s_state *state)
+static void blake2s_init_default(struct blake2s_ctx *ctx)
 {
-	blake2s_init(state, BLAKE2S_HASH_SIZE);
+	blake2s_init(ctx, BLAKE2S_HASH_SIZE);
 }
 
 /*
@@ -27,7 +27,7 @@ static void blake2s_init_default(struct blake2s_state *state)
  * with a key length of 0 and a hash length of BLAKE2S_HASH_SIZE.
  */
 #define HASH blake2s_default
-#define HASH_CTX blake2s_state
+#define HASH_CTX blake2s_ctx
 #define HASH_SIZE BLAKE2S_HASH_SIZE
 #define HASH_INIT blake2s_init_default
 #define HASH_UPDATE blake2s_update
@@ -44,19 +44,19 @@ static void test_blake2s_all_key_and_hash_lens(struct kunit *test)
 	u8 *data = &test_buf[0];
 	u8 *key = data + data_len;
 	u8 *hash = key + BLAKE2S_KEY_SIZE;
-	struct blake2s_state main_state;
+	struct blake2s_ctx main_ctx;
 	u8 main_hash[BLAKE2S_HASH_SIZE];
 
 	rand_bytes_seeded_from_len(data, data_len);
-	blake2s_init(&main_state, BLAKE2S_HASH_SIZE);
+	blake2s_init(&main_ctx, BLAKE2S_HASH_SIZE);
 	for (int key_len = 0; key_len <= BLAKE2S_KEY_SIZE; key_len++) {
 		rand_bytes_seeded_from_len(key, key_len);
 		for (int out_len = 1; out_len <= BLAKE2S_HASH_SIZE; out_len++) {
-			blake2s(hash, data, key, out_len, data_len, key_len);
-			blake2s_update(&main_state, hash, out_len);
+			blake2s(key, key_len, data, data_len, hash, out_len);
+			blake2s_update(&main_ctx, hash, out_len);
 		}
 	}
-	blake2s_final(&main_state, main_hash);
+	blake2s_final(&main_ctx, main_hash);
 	KUNIT_ASSERT_MEMEQ(test, main_hash, blake2s_keyed_testvec_consolidated,
 			   BLAKE2S_HASH_SIZE);
 }
@@ -75,21 +75,20 @@ static void test_blake2s_with_guarded_key_buf(struct kunit *test)
 		u8 *guarded_key = &test_buf[TEST_BUF_LEN - key_len];
 		u8 hash1[BLAKE2S_HASH_SIZE];
 		u8 hash2[BLAKE2S_HASH_SIZE];
-		struct blake2s_state state;
+		struct blake2s_ctx ctx;
 
 		rand_bytes(key, key_len);
 		memcpy(guarded_key, key, key_len);
 
-		blake2s(hash1, test_buf, key,
-			BLAKE2S_HASH_SIZE, data_len, key_len);
-		blake2s(hash2, test_buf, guarded_key,
-			BLAKE2S_HASH_SIZE, data_len, key_len);
+		blake2s(key, key_len, test_buf, data_len,
+			hash1, BLAKE2S_HASH_SIZE);
+		blake2s(guarded_key, key_len, test_buf, data_len,
+			hash2, BLAKE2S_HASH_SIZE);
 		KUNIT_ASSERT_MEMEQ(test, hash1, hash2, BLAKE2S_HASH_SIZE);
 
-		blake2s_init_key(&state, BLAKE2S_HASH_SIZE,
-				 guarded_key, key_len);
-		blake2s_update(&state, test_buf, data_len);
-		blake2s_final(&state, hash2);
+		blake2s_init_key(&ctx, BLAKE2S_HASH_SIZE, guarded_key, key_len);
+		blake2s_update(&ctx, test_buf, data_len);
+		blake2s_final(&ctx, hash2);
 		KUNIT_ASSERT_MEMEQ(test, hash1, hash2, BLAKE2S_HASH_SIZE);
 	}
 }
@@ -107,8 +106,8 @@ static void test_blake2s_with_guarded_out_buf(struct kunit *test)
 		u8 hash[BLAKE2S_HASH_SIZE];
 		u8 *guarded_hash = &test_buf[TEST_BUF_LEN - out_len];
 
-		blake2s(hash, test_buf, NULL, out_len, data_len, 0);
-		blake2s(guarded_hash, test_buf, NULL, out_len, data_len, 0);
+		blake2s(NULL, 0, test_buf, data_len, hash, out_len);
+		blake2s(NULL, 0, test_buf, data_len, guarded_hash, out_len);
 		KUNIT_ASSERT_MEMEQ(test, hash, guarded_hash, out_len);
 	}
 }