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28 lines
793 B
C
28 lines
793 B
C
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#include "curve25519-donna.h"
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#if !defined(CURVE25519_SUFFIX)
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#define CURVE25519_SUFFIX
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#endif
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#define CURVE25519_FN3(fn,suffix) fn##suffix
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#define CURVE25519_FN2(fn,suffix) CURVE25519_FN3(fn,suffix)
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#define CURVE25519_FN(fn) CURVE25519_FN2(fn,CURVE25519_SUFFIX)
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void
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CURVE25519_FN(curve25519_donna) (curve25519_key mypublic, const curve25519_key secret, const curve25519_key basepoint) {
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curve25519_key e;
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size_t i;
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for (i = 0;i < 32;++i) e[i] = secret[i];
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e[0] &= 0xf8;
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e[31] &= 0x7f;
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e[31] |= 0x40;
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curve25519_scalarmult_donna(mypublic, e, basepoint);
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}
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void
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CURVE25519_FN(curve25519_donna_basepoint) (curve25519_key mypublic, const curve25519_key secret) {
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static const curve25519_key basepoint = {9};
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CURVE25519_FN(curve25519_donna)(mypublic, secret, basepoint);
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}
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