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-rw-r--r--sc25519.h76
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diff --git a/sc25519.h b/sc25519.h
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+/* $OpenBSD: */
+
+/* Public Domain, from supercop-20130419/crypto_sign/ed25519/ref/sc25519.h */
+
+#ifndef SC25519_H
+#define SC25519_H
+
+#include "crypto_api.h"
+
+#define sc25519 crypto_sign_ed25519_ref_sc25519
+#define shortsc25519 crypto_sign_ed25519_ref_shortsc25519
+#define sc25519_from32bytes crypto_sign_ed25519_ref_sc25519_from32bytes
+#define shortsc25519_from16bytes crypto_sign_ed25519_ref_shortsc25519_from16bytes
+#define sc25519_from64bytes crypto_sign_ed25519_ref_sc25519_from64bytes
+#define sc25519_from_shortsc crypto_sign_ed25519_ref_sc25519_from_shortsc
+#define sc25519_to32bytes crypto_sign_ed25519_ref_sc25519_to32bytes
+#define sc25519_iszero_vartime crypto_sign_ed25519_ref_sc25519_iszero_vartime
+#define sc25519_isshort_vartime crypto_sign_ed25519_ref_sc25519_isshort_vartime
+#define sc25519_lt_vartime crypto_sign_ed25519_ref_sc25519_lt_vartime
+#define sc25519_add crypto_sign_ed25519_ref_sc25519_add
+#define sc25519_sub_nored crypto_sign_ed25519_ref_sc25519_sub_nored
+#define sc25519_mul crypto_sign_ed25519_ref_sc25519_mul
+#define sc25519_mul_shortsc crypto_sign_ed25519_ref_sc25519_mul_shortsc
+#define sc25519_window3 crypto_sign_ed25519_ref_sc25519_window3
+#define sc25519_window5 crypto_sign_ed25519_ref_sc25519_window5
+#define sc25519_2interleave2 crypto_sign_ed25519_ref_sc25519_2interleave2
+
+typedef struct
+{
+ crypto_uint32 v[32];
+}
+sc25519;
+
+typedef struct
+{
+ crypto_uint32 v[16];
+}
+shortsc25519;
+
+void sc25519_from32bytes(sc25519 *r, const unsigned char x[32]);
+
+void shortsc25519_from16bytes(shortsc25519 *r, const unsigned char x[16]);
+
+void sc25519_from64bytes(sc25519 *r, const unsigned char x[64]);
+
+void sc25519_from_shortsc(sc25519 *r, const shortsc25519 *x);
+
+void sc25519_to32bytes(unsigned char r[32], const sc25519 *x);
+
+int sc25519_iszero_vartime(const sc25519 *x);
+
+int sc25519_isshort_vartime(const sc25519 *x);
+
+int sc25519_lt_vartime(const sc25519 *x, const sc25519 *y);
+
+void sc25519_add(sc25519 *r, const sc25519 *x, const sc25519 *y);
+
+void sc25519_sub_nored(sc25519 *r, const sc25519 *x, const sc25519 *y);
+
+void sc25519_mul(sc25519 *r, const sc25519 *x, const sc25519 *y);
+
+void sc25519_mul_shortsc(sc25519 *r, const sc25519 *x, const shortsc25519 *y);
+
+/* Convert s into a representation of the form \sum_{i=0}^{84}r[i]2^3
+ * with r[i] in {-4,...,3}
+ */
+void sc25519_window3(signed char r[85], const sc25519 *s);
+
+/* Convert s into a representation of the form \sum_{i=0}^{50}r[i]2^5
+ * with r[i] in {-16,...,15}
+ */
+void sc25519_window5(signed char r[51], const sc25519 *s);
+
+void sc25519_2interleave2(unsigned char r[127], const sc25519 *s1, const sc25519 *s2);
+
+#endif