Annotation of src/usr.bin/ssh/sc25519.h, Revision 1.3
1.3 ! markus 1: /* $OpenBSD: sc25519.h,v 1.2 2013/12/07 00:26:37 djm Exp $ */
1.1 markus 2:
1.3 ! markus 3: /*
! 4: * Public Domain, Authors: Daniel J. Bernstein, Niels Duif, Tanja Lange,
! 5: * Peter Schwabe, Bo-Yin Yang.
! 6: * Copied from supercop-20130419/crypto_sign/ed25519/ref/sc25519.h
! 7: */
1.1 markus 8:
9: #ifndef SC25519_H
10: #define SC25519_H
11:
12: #include "crypto_api.h"
13:
14: #define sc25519 crypto_sign_ed25519_ref_sc25519
15: #define shortsc25519 crypto_sign_ed25519_ref_shortsc25519
16: #define sc25519_from32bytes crypto_sign_ed25519_ref_sc25519_from32bytes
17: #define shortsc25519_from16bytes crypto_sign_ed25519_ref_shortsc25519_from16bytes
18: #define sc25519_from64bytes crypto_sign_ed25519_ref_sc25519_from64bytes
19: #define sc25519_from_shortsc crypto_sign_ed25519_ref_sc25519_from_shortsc
20: #define sc25519_to32bytes crypto_sign_ed25519_ref_sc25519_to32bytes
21: #define sc25519_iszero_vartime crypto_sign_ed25519_ref_sc25519_iszero_vartime
22: #define sc25519_isshort_vartime crypto_sign_ed25519_ref_sc25519_isshort_vartime
23: #define sc25519_lt_vartime crypto_sign_ed25519_ref_sc25519_lt_vartime
24: #define sc25519_add crypto_sign_ed25519_ref_sc25519_add
25: #define sc25519_sub_nored crypto_sign_ed25519_ref_sc25519_sub_nored
26: #define sc25519_mul crypto_sign_ed25519_ref_sc25519_mul
27: #define sc25519_mul_shortsc crypto_sign_ed25519_ref_sc25519_mul_shortsc
28: #define sc25519_window3 crypto_sign_ed25519_ref_sc25519_window3
29: #define sc25519_window5 crypto_sign_ed25519_ref_sc25519_window5
30: #define sc25519_2interleave2 crypto_sign_ed25519_ref_sc25519_2interleave2
31:
32: typedef struct
33: {
34: crypto_uint32 v[32];
35: }
36: sc25519;
37:
38: typedef struct
39: {
40: crypto_uint32 v[16];
41: }
42: shortsc25519;
43:
44: void sc25519_from32bytes(sc25519 *r, const unsigned char x[32]);
45:
46: void shortsc25519_from16bytes(shortsc25519 *r, const unsigned char x[16]);
47:
48: void sc25519_from64bytes(sc25519 *r, const unsigned char x[64]);
49:
50: void sc25519_from_shortsc(sc25519 *r, const shortsc25519 *x);
51:
52: void sc25519_to32bytes(unsigned char r[32], const sc25519 *x);
53:
54: int sc25519_iszero_vartime(const sc25519 *x);
55:
56: int sc25519_isshort_vartime(const sc25519 *x);
57:
58: int sc25519_lt_vartime(const sc25519 *x, const sc25519 *y);
59:
60: void sc25519_add(sc25519 *r, const sc25519 *x, const sc25519 *y);
61:
62: void sc25519_sub_nored(sc25519 *r, const sc25519 *x, const sc25519 *y);
63:
64: void sc25519_mul(sc25519 *r, const sc25519 *x, const sc25519 *y);
65:
66: void sc25519_mul_shortsc(sc25519 *r, const sc25519 *x, const shortsc25519 *y);
67:
68: /* Convert s into a representation of the form \sum_{i=0}^{84}r[i]2^3
69: * with r[i] in {-4,...,3}
70: */
71: void sc25519_window3(signed char r[85], const sc25519 *s);
72:
73: /* Convert s into a representation of the form \sum_{i=0}^{50}r[i]2^5
74: * with r[i] in {-16,...,15}
75: */
76: void sc25519_window5(signed char r[51], const sc25519 *s);
77:
78: void sc25519_2interleave2(unsigned char r[127], const sc25519 *s1, const sc25519 *s2);
79:
80: #endif