Addition of generic NIST-DSA PKEY and ASN1 to support ML-DSA

crypto/dilithium/internal.h

@@ -0,0 +1,67 @@
+// Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0 OR ISC
+
+#ifndef AWSLC_HEADER_SIG_INTERNAL_H
+#define AWSLC_HEADER_SIG_INTERNAL_H
+
+#include <openssl/base.h>
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+// PQDSA_METHOD structure and helper functions.
+typedef struct {
+  int (*keygen)(uint8_t *public_key,
+                uint8_t *secret_key);
+
+  int (*sign)(const uint8_t *secret_key,
+              uint8_t *sig,
+              size_t *sig_len,
+              const uint8_t *message,
+              size_t message_len,
+              const uint8_t *ctx,
+              size_t ctx_len);
+
+  int (*verify)(const uint8_t *public_key,
+                const uint8_t *sig,
+                size_t sig_len,
+                const uint8_t *message,
+                size_t message_len,
+                const uint8_t *ctx,
+                size_t ctx_len);
+
+} PQDSA_METHOD;
+
+// PQDSA structure and helper functions.
+typedef struct {
+  int nid;
+  const uint8_t *oid;
+  uint8_t oid_len;
+  const char *comment;
+  size_t public_key_len;
+  size_t secret_key_len;
+  size_t signature_len;
+  size_t keygen_seed_len;
+  size_t sign_seed_len;
+  const PQDSA_METHOD *method;
+} PQDSA;
+
+// PQDSA_KEY structure and helper functions.
+struct pqdsa_key_st {
+  const PQDSA *pqdsa;
+  uint8_t *public_key;
+  uint8_t *secret_key;
+};
+
+int PQDSA_KEY_init(PQDSA_KEY *key, const PQDSA *pqdsa);
+const PQDSA * PQDSA_find_dsa_by_nid(int nid);
+const PQDSA *PQDSA_KEY_get0_dsa(PQDSA_KEY* key);
+PQDSA_KEY *PQDSA_KEY_new(void);
+void PQDSA_KEY_free(PQDSA_KEY *key);
+
+#if defined(__cplusplus)
+}  // extern C
+#endif
+
+#endif // AWSLC_HEADER_DSA_TEST_INTERNAL_H