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| author | Matthias Schiffer <mschiffer@universe-factory.net> | 2012-12-08 12:15:49 +0100 |
|---|---|---|
| committer | Matthias Schiffer <mschiffer@universe-factory.net> | 2012-12-08 12:15:49 +0100 |
| commit | d072ec9de1830616a045ad679efbd5c17fe899c7 (patch) | |
| tree | 05ea85a9e88db1802670dc47eef0057f761e4f69 | |
| parent | 5dff3b368fb18a3124d062456d14a9092568ad08 (diff) | |
| download | libuecc-d072ec9de1830616a045ad679efbd5c17fe899c7.tar libuecc-d072ec9de1830616a045ad679efbd5c17fe899c7.zip | |
Add the order of the base point to the public API
| -rw-r--r-- | include/libuecc/ecc.h | 1 | ||||
| -rw-r--r-- | src/ec25519_gf.c | 5 |
2 files changed, 4 insertions, 2 deletions
diff --git a/include/libuecc/ecc.h b/include/libuecc/ecc.h index 42431ec..f8e3dfe 100644 --- a/include/libuecc/ecc.h +++ b/include/libuecc/ecc.h @@ -56,6 +56,7 @@ void ecc_25519_scalarmult(ecc_25519_work *out, const ecc_int_256 *n, const ecc_2 void ecc_25519_scalarmult_base(ecc_25519_work *out, const ecc_int_256 *n); /* operations on elements of the prime field F_q for q = 2^252 + 27742317777372353535851937790883648493 */ +extern const ecc_int_256 ecc_25519_gf_order; int ecc_25519_gf_is_zero(const ecc_int_256 *in); void ecc_25519_gf_add(ecc_int_256 *out, const ecc_int_256 *in1, const ecc_int_256 *in2); void ecc_25519_gf_sub(ecc_int_256 *out, const ecc_int_256 *in1, const ecc_int_256 *in2); diff --git a/src/ec25519_gf.c b/src/ec25519_gf.c index de9b1a8..f4d81ad 100644 --- a/src/ec25519_gf.c +++ b/src/ec25519_gf.c @@ -37,13 +37,14 @@ #define ASR(n,s) (((n) >> s)|(IS_NEGATIVE(n)*((unsigned)-1) << (8*sizeof(n)-s))) -static const unsigned char q[32] = { +const ecc_int_256 ecc_25519_gf_order = {{ 0xed, 0xd3, 0xf5, 0x5c, 0x1a, 0x63, 0x12, 0x58, 0xd6, 0x9c, 0xf7, 0xa2, 0xde, 0xf9, 0xde, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10 -}; +}}; +static const unsigned char *q = ecc_25519_gf_order.p; static void select(unsigned char out[32], const unsigned char r[32], const unsigned char s[32], unsigned int b) { unsigned int j; |