1 files changed, 2 insertions, 33 deletions
diff --git a/libs/libaxolotl/src/curve25519/ed25519/additions/curve_sigs.h b/libs/libaxolotl/src/curve25519/ed25519/additions/curve_sigs.h
index b3dbad0155..a2d819aef0 100644
--- a/libs/libaxolotl/src/curve25519/ed25519/additions/curve_sigs.h
+++ b/libs/libaxolotl/src/curve25519/ed25519/additions/curve_sigs.h
@@ -2,47 +2,16 @@
 #ifndef __CURVE_SIGS_H__
 #define __CURVE_SIGS_H__
 
-void curve25519_keygen(unsigned char* curve25519_pubkey_out, /* 32 bytes */
-                       const unsigned char* curve25519_privkey_in); /* 32 bytes */
-
 /* returns 0 on success */
 int curve25519_sign(unsigned char* signature_out, /* 64 bytes */
                      const unsigned char* curve25519_privkey, /* 32 bytes */
-                     const unsigned char* msg, const unsigned long msg_len,
+                     const unsigned char* msg, const unsigned long msg_len, /* <= 256 bytes */
                      const unsigned char* random); /* 64 bytes */
 
 /* returns 0 on success */
 int curve25519_verify(const unsigned char* signature, /* 64 bytes */
                       const unsigned char* curve25519_pubkey, /* 32 bytes */
-                      const unsigned char* msg, const unsigned long msg_len);
-
-/* helper function - modified version of crypto_sign() to use 
-   explicit private key.  In particular:
-
-   sk     : private key
-   pk     : public key
-   msg    : message
-   prefix : 0xFE || [0xFF]*31
-   random : 64 bytes random
-   q      : main subgroup order
-
-   The prefix is chosen to distinguish the two SHA512 uses below, since
-   prefix is an invalid encoding for R (it would encode a "field element"
-   of 2^255 - 2).  0xFF*32 is set aside for use in ECDH protocols, which
-   is why the first byte here ix 0xFE.
+                      const unsigned char* msg, const unsigned long msg_len); /* <= 256 bytes */
 
-   sig_nonce = SHA512(prefix || sk ||  msg || random) % q
-   R = g^sig_nonce
-   M = SHA512(R || pk || m)
-   S = sig_nonce + (m * sk)
-   signature = (R || S)
- */
-int crypto_sign_modified(
-  unsigned char *sm,
-  const unsigned char *m,unsigned long long mlen,
-  const unsigned char *sk, /* Curve/Ed25519 private key */
-  const unsigned char *pk, /* Ed25519 public key */
-  const unsigned char *random /* 64 bytes random to hash into nonce */
-  );
 
 #endif