Support for writing ed25519 public/private components to disk.

This refactors the "== type:tag ==" code from crypto_curve25519.c

1 files changed, 12 insertions, 0 deletions

diff --git a/src/common/crypto_curve25519.h b/src/common/crypto_curve25519.h
index fece2feb19..404f99c18e 100644
--- a/src/common/crypto_curve25519.h
+++ b/src/common/crypto_curve25519.h
@@ -72,5 +72,17 @@ int curve25519_public_from_base64(curve25519_public_key_t *pkey,
 int curve25519_public_to_base64(char *output,
                                 const curve25519_public_key_t *pkey);
 
+int crypto_write_tagged_contents_to_file(const char *fname,
+                                         const char *typestring,
+                                         const char *tag,
+                                         const uint8_t *data,
+                                         size_t datalen);
+
+ssize_t crypto_read_tagged_contents_from_file(const char *fname,
+                                              const char *typestring,
+                                              char **tag_out,
+                                              uint8_t *data_out,
+                                              ssize_t data_out_len);
+
 #endif