commit 52ed9f455ee0063958a1b18e54cab9a427fc422f
author Hyman Huang <yong.huang@smartx.com> Thu Dec 07 23:47:35 2023 +0800
committer Daniel P. Berrangé <berrange@redhat.com> Fri Feb 09 12:47:55 2024 +0000
tree c117680dc0047253a3055d0b14a5e00e90c2e9be
parent fdd51403a35a484f29c405c3d5cb0058f80bd3ba

crypto: Introduce SM4 symmetric cipher algorithm

Introduce the SM4 cipher algorithms (OSCCA GB/T 32907-2016).

SM4 (GBT.32907-2016) is a cryptographic standard issued by the
Organization of State Commercial Administration of China (OSCCA)
as an authorized cryptographic algorithms for the use within China.

Detect the SM4 cipher algorithms and enable the feature silently
if it is available.

Signed-off-by: Hyman Huang <yong.huang@smartx.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

crypto/block-luks.c

diff --git a/crypto/block-luks.c b/crypto/block-luks.c
index fb01ec3..f0813d6 100644
--- a/crypto/block-luks.c
+++ b/crypto/block-luks.c
@@ -95,12 +95,23 @@
     { 0, 0 },
 };
 
+#ifdef CONFIG_CRYPTO_SM4
+static const QCryptoBlockLUKSCipherSizeMap
+qcrypto_block_luks_cipher_size_map_sm4[] = {
+    { 16, QCRYPTO_CIPHER_ALG_SM4},
+    { 0, 0 },
+};
+#endif
+
 static const QCryptoBlockLUKSCipherNameMap
 qcrypto_block_luks_cipher_name_map[] = {
     { "aes", qcrypto_block_luks_cipher_size_map_aes },
     { "cast5", qcrypto_block_luks_cipher_size_map_cast5 },
     { "serpent", qcrypto_block_luks_cipher_size_map_serpent },
     { "twofish", qcrypto_block_luks_cipher_size_map_twofish },
+#ifdef CONFIG_CRYPTO_SM4
+    { "sm4", qcrypto_block_luks_cipher_size_map_sm4},
+#endif
 };
 
 QEMU_BUILD_BUG_ON(sizeof(struct QCryptoBlockLUKSKeySlot) != 48);