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-rw-r--r--crypto/cipher-nettle.c146
1 files changed, 111 insertions, 35 deletions
diff --git a/crypto/cipher-nettle.c b/crypto/cipher-nettle.c
index 3c982e483a..70909fb7fe 100644
--- a/crypto/cipher-nettle.c
+++ b/crypto/cipher-nettle.c
@@ -29,83 +29,147 @@
#include <nettle/serpent.h>
#include <nettle/twofish.h>
-#if CONFIG_NETTLE_VERSION_MAJOR < 3
-typedef nettle_crypt_func nettle_cipher_func;
+typedef void (*QCryptoCipherNettleFuncWrapper)(const void *ctx,
+ size_t length,
+ uint8_t *dst,
+ const uint8_t *src);
+#if CONFIG_NETTLE_VERSION_MAJOR < 3
+typedef nettle_crypt_func * QCryptoCipherNettleFuncNative;
typedef void * cipher_ctx_t;
typedef unsigned cipher_length_t;
+
+#define cast5_set_key cast128_set_key
#else
+typedef nettle_cipher_func * QCryptoCipherNettleFuncNative;
typedef const void * cipher_ctx_t;
typedef size_t cipher_length_t;
#endif
-static nettle_cipher_func aes_encrypt_wrapper;
-static nettle_cipher_func aes_decrypt_wrapper;
-static nettle_cipher_func des_encrypt_wrapper;
-static nettle_cipher_func des_decrypt_wrapper;
-
typedef struct QCryptoNettleAES {
struct aes_ctx enc;
struct aes_ctx dec;
} QCryptoNettleAES;
-static void aes_encrypt_wrapper(cipher_ctx_t ctx, cipher_length_t length,
+static void aes_encrypt_native(cipher_ctx_t ctx, cipher_length_t length,
+ uint8_t *dst, const uint8_t *src)
+{
+ const QCryptoNettleAES *aesctx = ctx;
+ aes_encrypt(&aesctx->enc, length, dst, src);
+}
+
+static void aes_decrypt_native(cipher_ctx_t ctx, cipher_length_t length,
+ uint8_t *dst, const uint8_t *src)
+{
+ const QCryptoNettleAES *aesctx = ctx;
+ aes_decrypt(&aesctx->dec, length, dst, src);
+}
+
+static void des_encrypt_native(cipher_ctx_t ctx, cipher_length_t length,
+ uint8_t *dst, const uint8_t *src)
+{
+ des_encrypt(ctx, length, dst, src);
+}
+
+static void des_decrypt_native(cipher_ctx_t ctx, cipher_length_t length,
+ uint8_t *dst, const uint8_t *src)
+{
+ des_decrypt(ctx, length, dst, src);
+}
+
+static void cast128_encrypt_native(cipher_ctx_t ctx, cipher_length_t length,
+ uint8_t *dst, const uint8_t *src)
+{
+ cast128_encrypt(ctx, length, dst, src);
+}
+
+static void cast128_decrypt_native(cipher_ctx_t ctx, cipher_length_t length,
+ uint8_t *dst, const uint8_t *src)
+{
+ cast128_decrypt(ctx, length, dst, src);
+}
+
+static void serpent_encrypt_native(cipher_ctx_t ctx, cipher_length_t length,
+ uint8_t *dst, const uint8_t *src)
+{
+ serpent_encrypt(ctx, length, dst, src);
+}
+
+static void serpent_decrypt_native(cipher_ctx_t ctx, cipher_length_t length,
+ uint8_t *dst, const uint8_t *src)
+{
+ serpent_decrypt(ctx, length, dst, src);
+}
+
+static void twofish_encrypt_native(cipher_ctx_t ctx, cipher_length_t length,
+ uint8_t *dst, const uint8_t *src)
+{
+ twofish_encrypt(ctx, length, dst, src);
+}
+
+static void twofish_decrypt_native(cipher_ctx_t ctx, cipher_length_t length,
+ uint8_t *dst, const uint8_t *src)
+{
+ twofish_decrypt(ctx, length, dst, src);
+}
+
+static void aes_encrypt_wrapper(const void *ctx, size_t length,
uint8_t *dst, const uint8_t *src)
{
const QCryptoNettleAES *aesctx = ctx;
aes_encrypt(&aesctx->enc, length, dst, src);
}
-static void aes_decrypt_wrapper(cipher_ctx_t ctx, cipher_length_t length,
+static void aes_decrypt_wrapper(const void *ctx, size_t length,
uint8_t *dst, const uint8_t *src)
{
const QCryptoNettleAES *aesctx = ctx;
aes_decrypt(&aesctx->dec, length, dst, src);
}
-static void des_encrypt_wrapper(cipher_ctx_t ctx, cipher_length_t length,
+static void des_encrypt_wrapper(const void *ctx, size_t length,
uint8_t *dst, const uint8_t *src)
{
des_encrypt(ctx, length, dst, src);
}
-static void des_decrypt_wrapper(cipher_ctx_t ctx, cipher_length_t length,
+static void des_decrypt_wrapper(const void *ctx, size_t length,
uint8_t *dst, const uint8_t *src)
{
des_decrypt(ctx, length, dst, src);
}
-static void cast128_encrypt_wrapper(cipher_ctx_t ctx, cipher_length_t length,
+static void cast128_encrypt_wrapper(const void *ctx, size_t length,
uint8_t *dst, const uint8_t *src)
{
cast128_encrypt(ctx, length, dst, src);
}
-static void cast128_decrypt_wrapper(cipher_ctx_t ctx, cipher_length_t length,
+static void cast128_decrypt_wrapper(const void *ctx, size_t length,
uint8_t *dst, const uint8_t *src)
{
cast128_decrypt(ctx, length, dst, src);
}
-static void serpent_encrypt_wrapper(cipher_ctx_t ctx, cipher_length_t length,
+static void serpent_encrypt_wrapper(const void *ctx, size_t length,
uint8_t *dst, const uint8_t *src)
{
serpent_encrypt(ctx, length, dst, src);
}
-static void serpent_decrypt_wrapper(cipher_ctx_t ctx, cipher_length_t length,
+static void serpent_decrypt_wrapper(const void *ctx, size_t length,
uint8_t *dst, const uint8_t *src)
{
serpent_decrypt(ctx, length, dst, src);
}
-static void twofish_encrypt_wrapper(cipher_ctx_t ctx, cipher_length_t length,
+static void twofish_encrypt_wrapper(const void *ctx, size_t length,
uint8_t *dst, const uint8_t *src)
{
twofish_encrypt(ctx, length, dst, src);
}
-static void twofish_decrypt_wrapper(cipher_ctx_t ctx, cipher_length_t length,
+static void twofish_decrypt_wrapper(const void *ctx, size_t length,
uint8_t *dst, const uint8_t *src)
{
twofish_decrypt(ctx, length, dst, src);
@@ -118,8 +182,10 @@ struct QCryptoCipherNettle {
/* Second cipher context for XTS mode only */
void *ctx_tweak;
/* Cipher callbacks for both contexts */
- nettle_cipher_func *alg_encrypt;
- nettle_cipher_func *alg_decrypt;
+ QCryptoCipherNettleFuncNative alg_encrypt_native;
+ QCryptoCipherNettleFuncNative alg_decrypt_native;
+ QCryptoCipherNettleFuncWrapper alg_encrypt_wrapper;
+ QCryptoCipherNettleFuncWrapper alg_decrypt_wrapper;
uint8_t *iv;
size_t blocksize;
@@ -182,8 +248,10 @@ QCryptoCipher *qcrypto_cipher_new(QCryptoCipherAlgorithm alg,
des_set_key(ctx->ctx, rfbkey);
g_free(rfbkey);
- ctx->alg_encrypt = des_encrypt_wrapper;
- ctx->alg_decrypt = des_decrypt_wrapper;
+ ctx->alg_encrypt_native = des_encrypt_native;
+ ctx->alg_decrypt_native = des_decrypt_native;
+ ctx->alg_encrypt_wrapper = des_encrypt_wrapper;
+ ctx->alg_decrypt_wrapper = des_decrypt_wrapper;
ctx->blocksize = DES_BLOCK_SIZE;
break;
@@ -213,8 +281,10 @@ QCryptoCipher *qcrypto_cipher_new(QCryptoCipherAlgorithm alg,
nkey, key);
}
- ctx->alg_encrypt = aes_encrypt_wrapper;
- ctx->alg_decrypt = aes_decrypt_wrapper;
+ ctx->alg_encrypt_native = aes_encrypt_native;
+ ctx->alg_decrypt_native = aes_decrypt_native;
+ ctx->alg_encrypt_wrapper = aes_encrypt_wrapper;
+ ctx->alg_decrypt_wrapper = aes_decrypt_wrapper;
ctx->blocksize = AES_BLOCK_SIZE;
break;
@@ -232,8 +302,10 @@ QCryptoCipher *qcrypto_cipher_new(QCryptoCipherAlgorithm alg,
cast5_set_key(ctx->ctx, nkey, key);
}
- ctx->alg_encrypt = cast128_encrypt_wrapper;
- ctx->alg_decrypt = cast128_decrypt_wrapper;
+ ctx->alg_encrypt_native = cast128_encrypt_native;
+ ctx->alg_decrypt_native = cast128_decrypt_native;
+ ctx->alg_encrypt_wrapper = cast128_encrypt_wrapper;
+ ctx->alg_decrypt_wrapper = cast128_decrypt_wrapper;
ctx->blocksize = CAST128_BLOCK_SIZE;
break;
@@ -253,8 +325,10 @@ QCryptoCipher *qcrypto_cipher_new(QCryptoCipherAlgorithm alg,
serpent_set_key(ctx->ctx, nkey, key);
}
- ctx->alg_encrypt = serpent_encrypt_wrapper;
- ctx->alg_decrypt = serpent_decrypt_wrapper;
+ ctx->alg_encrypt_native = serpent_encrypt_native;
+ ctx->alg_decrypt_native = serpent_decrypt_native;
+ ctx->alg_encrypt_wrapper = serpent_encrypt_wrapper;
+ ctx->alg_decrypt_wrapper = serpent_decrypt_wrapper;
ctx->blocksize = SERPENT_BLOCK_SIZE;
break;
@@ -274,8 +348,10 @@ QCryptoCipher *qcrypto_cipher_new(QCryptoCipherAlgorithm alg,
twofish_set_key(ctx->ctx, nkey, key);
}
- ctx->alg_encrypt = twofish_encrypt_wrapper;
- ctx->alg_decrypt = twofish_decrypt_wrapper;
+ ctx->alg_encrypt_native = twofish_encrypt_native;
+ ctx->alg_decrypt_native = twofish_decrypt_native;
+ ctx->alg_encrypt_wrapper = twofish_encrypt_wrapper;
+ ctx->alg_decrypt_wrapper = twofish_decrypt_wrapper;
ctx->blocksize = TWOFISH_BLOCK_SIZE;
break;
@@ -330,18 +406,18 @@ int qcrypto_cipher_encrypt(QCryptoCipher *cipher,
switch (cipher->mode) {
case QCRYPTO_CIPHER_MODE_ECB:
- ctx->alg_encrypt(ctx->ctx, len, out, in);
+ ctx->alg_encrypt_wrapper(ctx->ctx, len, out, in);
break;
case QCRYPTO_CIPHER_MODE_CBC:
- cbc_encrypt(ctx->ctx, ctx->alg_encrypt,
+ cbc_encrypt(ctx->ctx, ctx->alg_encrypt_native,
ctx->blocksize, ctx->iv,
len, out, in);
break;
case QCRYPTO_CIPHER_MODE_XTS:
xts_encrypt(ctx->ctx, ctx->ctx_tweak,
- ctx->alg_encrypt, ctx->alg_encrypt,
+ ctx->alg_encrypt_wrapper, ctx->alg_encrypt_wrapper,
ctx->iv, len, out, in);
break;
@@ -370,11 +446,11 @@ int qcrypto_cipher_decrypt(QCryptoCipher *cipher,
switch (cipher->mode) {
case QCRYPTO_CIPHER_MODE_ECB:
- ctx->alg_decrypt(ctx->ctx, len, out, in);
+ ctx->alg_decrypt_wrapper(ctx->ctx, len, out, in);
break;
case QCRYPTO_CIPHER_MODE_CBC:
- cbc_decrypt(ctx->ctx, ctx->alg_decrypt,
+ cbc_decrypt(ctx->ctx, ctx->alg_decrypt_native,
ctx->blocksize, ctx->iv,
len, out, in);
break;
@@ -386,7 +462,7 @@ int qcrypto_cipher_decrypt(QCryptoCipher *cipher,
return -1;
}
xts_decrypt(ctx->ctx, ctx->ctx_tweak,
- ctx->alg_encrypt, ctx->alg_decrypt,
+ ctx->alg_encrypt_wrapper, ctx->alg_decrypt_wrapper,
ctx->iv, len, out, in);
break;
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-24 02:15:11 +0000