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80 lines
2.8 KiB
80 lines
2.8 KiB
/* $OpenBSD: sc25519.h,v 1.3 2013/12/09 11:03:45 markus Exp $ */ |
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/* |
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* Public Domain, Authors: Daniel J. Bernstein, Niels Duif, Tanja Lange, |
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* Peter Schwabe, Bo-Yin Yang. |
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* Copied from supercop-20130419/crypto_sign/ed25519/ref/sc25519.h |
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*/ |
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#ifndef SC25519_H |
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#define SC25519_H |
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#include "crypto_api.h" |
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#define sc25519 crypto_sign_ed25519_ref_sc25519 |
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#define shortsc25519 crypto_sign_ed25519_ref_shortsc25519 |
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#define sc25519_from32bytes crypto_sign_ed25519_ref_sc25519_from32bytes |
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#define shortsc25519_from16bytes crypto_sign_ed25519_ref_shortsc25519_from16bytes |
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#define sc25519_from64bytes crypto_sign_ed25519_ref_sc25519_from64bytes |
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#define sc25519_from_shortsc crypto_sign_ed25519_ref_sc25519_from_shortsc |
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#define sc25519_to32bytes crypto_sign_ed25519_ref_sc25519_to32bytes |
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#define sc25519_iszero_vartime crypto_sign_ed25519_ref_sc25519_iszero_vartime |
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#define sc25519_isshort_vartime crypto_sign_ed25519_ref_sc25519_isshort_vartime |
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#define sc25519_lt_vartime crypto_sign_ed25519_ref_sc25519_lt_vartime |
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#define sc25519_add crypto_sign_ed25519_ref_sc25519_add |
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#define sc25519_sub_nored crypto_sign_ed25519_ref_sc25519_sub_nored |
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#define sc25519_mul crypto_sign_ed25519_ref_sc25519_mul |
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#define sc25519_mul_shortsc crypto_sign_ed25519_ref_sc25519_mul_shortsc |
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#define sc25519_window3 crypto_sign_ed25519_ref_sc25519_window3 |
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#define sc25519_window5 crypto_sign_ed25519_ref_sc25519_window5 |
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#define sc25519_2interleave2 crypto_sign_ed25519_ref_sc25519_2interleave2 |
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typedef struct |
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{ |
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crypto_uint32 v[32]; |
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} |
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sc25519; |
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typedef struct |
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{ |
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crypto_uint32 v[16]; |
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} |
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shortsc25519; |
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void sc25519_from32bytes(sc25519 *r, const unsigned char x[32]); |
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void shortsc25519_from16bytes(shortsc25519 *r, const unsigned char x[16]); |
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void sc25519_from64bytes(sc25519 *r, const unsigned char x[64]); |
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void sc25519_from_shortsc(sc25519 *r, const shortsc25519 *x); |
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void sc25519_to32bytes(unsigned char r[32], const sc25519 *x); |
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int sc25519_iszero_vartime(const sc25519 *x); |
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int sc25519_isshort_vartime(const sc25519 *x); |
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int sc25519_lt_vartime(const sc25519 *x, const sc25519 *y); |
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void sc25519_add(sc25519 *r, const sc25519 *x, const sc25519 *y); |
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void sc25519_sub_nored(sc25519 *r, const sc25519 *x, const sc25519 *y); |
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void sc25519_mul(sc25519 *r, const sc25519 *x, const sc25519 *y); |
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void sc25519_mul_shortsc(sc25519 *r, const sc25519 *x, const shortsc25519 *y); |
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/* Convert s into a representation of the form \sum_{i=0}^{84}r[i]2^3 |
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* with r[i] in {-4,...,3} |
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*/ |
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void sc25519_window3(signed char r[85], const sc25519 *s); |
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/* Convert s into a representation of the form \sum_{i=0}^{50}r[i]2^5 |
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* with r[i] in {-16,...,15} |
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*/ |
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void sc25519_window5(signed char r[51], const sc25519 *s); |
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void sc25519_2interleave2(unsigned char r[127], const sc25519 *s1, const sc25519 *s2); |
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#endif
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