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Make crypto_ed25519.c no longer depend on openssl

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Now it calls through our own crypto API.
This commit is contained in:
Nick Mathewson 2017-03-25 11:34:22 +01:00
parent e7506c03cf
commit 3fc4f81de3
1 changed files with 8 additions and 8 deletions
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16
src/common/crypto_ed25519.c
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@ -32,8 +32,6 @@
#include "ed25519/ref10/ed25519_ref10.h"
#include "ed25519/donna/ed25519_donna_tor.h"
#include <openssl/sha.h>
static void pick_ed25519_impl(void);
/** An Ed25519 implementation, as a set of function pointers. */
@ -442,14 +440,16 @@ ed25519_keypair_from_curve25519_keypair(ed25519_keypair_t *out,
{
const char string[] = "Derive high part of ed25519 key from curve25519 key";
ed25519_public_key_t pubkey_check;
SHA512_CTX ctx;
uint8_t sha512_output[64];
crypto_digest_t *ctx;
uint8_t sha512_output[DIGEST512_LEN];
memcpy(out->seckey.seckey, inp->seckey.secret_key, 32);
SHA512_Init(&ctx);
SHA512_Update(&ctx, out->seckey.seckey, 32);
SHA512_Update(&ctx, string, sizeof(string));
SHA512_Final(sha512_output, &ctx);
ctx = crypto_digest512_new(DIGEST_SHA512);
crypto_digest_add_bytes(ctx, (const char*)out->seckey.seckey, 32);
crypto_digest_add_bytes(ctx, (const char*)string, sizeof(string));
crypto_digest_get_digest(ctx, (char *)sha512_output, sizeof(sha512_output));
crypto_digest_free(ctx);
memcpy(out->seckey.seckey + 32, sha512_output, 32);
ed25519_public_key_generate(&out->pubkey, &out->seckey);