29 lines
520 B
C
29 lines
520 B
C
#include "ed25519.h"
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#include "sha512.h"
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#include "ge.h"
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int ed25519_create_keypair(unsigned char *verify_key, unsigned char *sign_key, unsigned char *seed) {
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unsigned char h[64];
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ge_p3 A;
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int i;
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sha512(seed, 32, h);
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h[0] &= 248;
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h[31] &= 63;
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h[31] |= 64;
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ge_scalarmult_base(&A, h);
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ge_p3_tobytes(verify_key, &A);
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for (i = 0; i < 32; ++i) {
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sign_key[i] = seed[i];
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}
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for (i = 0; i < 32; ++i) {
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sign_key[32 + i] = verify_key[i];
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}
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return 0;
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}
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