Latest update.

include/crypto/ecx.h

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+/*
+ * Copyright 2020 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
+ */
+
+/* Internal EC functions for other submodules: not for application use */
+
+#ifndef OSSL_CRYPTO_ECX_H
+# define OSSL_CRYPTO_ECX_H
+# include <openssl/opensslconf.h>
+
+# ifndef OPENSSL_NO_EC
+
+#  include <openssl/e_os2.h>
+#  include <openssl/crypto.h>
+#  include "internal/refcount.h"
+
+#  define X25519_KEYLEN        32
+#  define X448_KEYLEN          56
+#  define ED25519_KEYLEN       32
+#  define ED448_KEYLEN         57
+
+#  define MAX_KEYLEN  ED448_KEYLEN
+
+#  define X25519_BITS          253
+#  define X25519_SECURITY_BITS 128
+
+#  define ED25519_SIGSIZE      64
+
+#  define X448_BITS            448
+#  define ED448_BITS           456
+#  define X448_SECURITY_BITS   224
+
+#  define ED448_SIGSIZE        114
+
+struct ecx_key_st {
+    unsigned int haspubkey:1;
+    unsigned char pubkey[MAX_KEYLEN];
+    unsigned char *privkey;
+    size_t keylen;
+    CRYPTO_REF_COUNT references;
+    CRYPTO_RWLOCK *lock;
+};
+
+typedef struct ecx_key_st ECX_KEY;
+
+ECX_KEY *ecx_key_new(size_t keylen, int haspubkey);
+unsigned char *ecx_key_allocate_privkey(ECX_KEY *key);
+void ecx_key_free(ECX_KEY *key);
+int ecx_key_up_ref(ECX_KEY *key);
+
+int X25519(uint8_t out_shared_key[32], const uint8_t private_key[32],
+           const uint8_t peer_public_value[32]);
+void X25519_public_from_private(uint8_t out_public_value[32],
+                                const uint8_t private_key[32]);
+
+int X448(uint8_t out_shared_key[56], const uint8_t private_key[56],
+         const uint8_t peer_public_value[56]);
+void X448_public_from_private(uint8_t out_public_value[56],
+                              const uint8_t private_key[56]);
+
+int s390x_x25519_mul(unsigned char u_dst[32],
+                     const unsigned char u_src[32],
+                     const unsigned char d_src[32]);
+int s390x_x448_mul(unsigned char u_dst[56],
+                   const unsigned char u_src[56],
+                   const unsigned char d_src[56]);
+
+# endif /* OPENSSL_NO_EC */
+#endif