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-rw-r--r--providers/common/include/internal/ciphers/cipher_aead.h49
1 files changed, 49 insertions, 0 deletions
diff --git a/providers/common/include/internal/ciphers/cipher_aead.h b/providers/common/include/internal/ciphers/cipher_aead.h
new file mode 100644
index 0000000000..a2fe87e967
--- /dev/null
+++ b/providers/common/include/internal/ciphers/cipher_aead.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/* TODO(3.0) Figure out what flags are really needed */
+#define AEAD_FLAGS (EVP_CIPH_FLAG_AEAD_CIPHER | EVP_CIPH_FLAG_DEFAULT_ASN1 \
+ | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
+ | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
+ | EVP_CIPH_CUSTOM_COPY)
+
+#define IMPLEMENT_aead_cipher(alg, lc, UCMODE, flags, kbits, blkbits, ivbits) \
+static OSSL_OP_cipher_get_params_fn alg##_##kbits##_##lc##_get_params; \
+static int alg##_##kbits##_##lc##_get_params(OSSL_PARAM params[]) \
+{ \
+ return cipher_generic_get_params(params, EVP_CIPH_##UCMODE##_MODE, \
+ flags, kbits, blkbits, ivbits); \
+} \
+static OSSL_OP_cipher_newctx_fn alg##kbits##lc##_newctx; \
+static void * alg##kbits##lc##_newctx(void *provctx) \
+{ \
+ return alg##_##lc##_newctx(provctx, kbits); \
+} \
+const OSSL_DISPATCH alg##kbits##lc##_functions[] = { \
+ { OSSL_FUNC_CIPHER_NEWCTX, (void (*)(void))alg##kbits##lc##_newctx }, \
+ { OSSL_FUNC_CIPHER_FREECTX, (void (*)(void))alg##_##lc##_freectx }, \
+ { OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void)) lc##_einit }, \
+ { OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void)) lc##_dinit }, \
+ { OSSL_FUNC_CIPHER_UPDATE, (void (*)(void)) lc##_stream_update }, \
+ { OSSL_FUNC_CIPHER_FINAL, (void (*)(void)) lc##_stream_final }, \
+ { OSSL_FUNC_CIPHER_CIPHER, (void (*)(void)) lc##_cipher }, \
+ { OSSL_FUNC_CIPHER_GET_PARAMS, \
+ (void (*)(void)) alg##_##kbits##_##lc##_get_params }, \
+ { OSSL_FUNC_CIPHER_GET_CTX_PARAMS, \
+ (void (*)(void)) lc##_get_ctx_params }, \
+ { OSSL_FUNC_CIPHER_SET_CTX_PARAMS, \
+ (void (*)(void)) lc##_set_ctx_params }, \
+ { OSSL_FUNC_CIPHER_GETTABLE_PARAMS, \
+ (void (*)(void))cipher_generic_gettable_params }, \
+ { OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS, \
+ (void (*)(void))cipher_aead_gettable_ctx_params }, \
+ { OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS, \
+ (void (*)(void))cipher_aead_settable_ctx_params }, \
+ { 0, NULL } \
+}