-decaf_error_t decaf_ed448_verify_prehash (
- const uint8_t signature[DECAF_EDDSA_448_SIGNATURE_BYTES],
- const uint8_t pubkey[DECAF_EDDSA_448_PUBLIC_BYTES],
- const decaf_ed448_prehash_ctx_t hash,
- const uint8_t *context,
- uint8_t context_len
-) {
- decaf_error_t ret;
-
- uint8_t hash_output[EDDSA_PREHASH_BYTES];
- {
- decaf_ed448_prehash_ctx_t hash_too;
- memcpy(hash_too,hash,sizeof(hash_too));
- hash_final(hash_too,hash_output,sizeof(hash_output));
- hash_destroy(hash_too);
- }
-
- ret = decaf_ed448_verify(signature,pubkey,hash_output,sizeof(hash_output),1,context,context_len);
-
- return ret;
+int ED448_sign(uint8_t *out_sig, const uint8_t *message, size_t message_len,
+ const uint8_t public_key[57], const uint8_t private_key[57],
+ const uint8_t *context, size_t context_len)
+{
+
+ return c448_ed448_sign(out_sig, private_key, public_key, message,
+ message_len, 0, context, context_len)
+ == C448_SUCCESS;
+}
+
+int ED448_verify(const uint8_t *message, size_t message_len,
+ const uint8_t signature[114], const uint8_t public_key[57],
+ const uint8_t *context, size_t context_len)
+{
+ return c448_ed448_verify(signature, public_key, message, message_len, 0,
+ context, (uint8_t)context_len) == C448_SUCCESS;
+}
+
+int ED448ph_sign(uint8_t *out_sig, const uint8_t hash[64],
+ const uint8_t public_key[57], const uint8_t private_key[57],
+ const uint8_t *context, size_t context_len)
+{
+ return c448_ed448_sign_prehash(out_sig, private_key, public_key, hash,
+ context, context_len) == C448_SUCCESS;
+
+}
+
+int ED448ph_verify(const uint8_t hash[64], const uint8_t signature[114],
+ const uint8_t public_key[57], const uint8_t *context,
+ size_t context_len)
+{
+ return c448_ed448_verify_prehash(signature, public_key, hash, context,
+ (uint8_t)context_len) == C448_SUCCESS;
+}
+
+int ED448_public_from_private(uint8_t out_public_key[57],
+ const uint8_t private_key[57])
+{
+ return c448_ed448_derive_public_key(out_public_key, private_key)
+ == C448_SUCCESS;