Attachment 1446057 Details for Bug 1584480 – WIP to replace Sign.c with test cases

WIP to replace Sign.c with test cases

testsign.c (text/x-csrc), 2.87 KB, created by Stuart D Gathman on 2018-05-31 03:24:42 UTC

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Creator: Stuart D Gathman

Created: 2018-05-31 03:24:42 UTC

Size: 2.87 KB

patch

obsolete

>#include <stdio.h>
>#include <string.h>
>#include <sodium.h>
>
>#if 1
>#include <nacl/crypto_uint32.h>
>
>#define ge25519_pack crypto_sign_edwards25519sha512batch_ge25519_pack
>#define ge25519_scalarmult_base crypto_sign_edwards25519sha512batch_ge25519_scalarmult_base
>#define sc25519_from32bytes crypto_sign_edwards25519sha512batch_sc25519_from32bytes
>
>typedef struct {
>  crypto_uint32 v[32];
>} fe25519;
>
>typedef struct {
>  crypto_uint32 v[32];
>} sc25519;
>
>typedef struct {
>  fe25519 x;
>  fe25519 y;
>  fe25519 z;
>  fe25519 t;
>} ge25519;
>
>void sc25519_from32bytes(sc25519 *r, const unsigned char x[32]);
>void ge25519_scalarmult_base(ge25519 *r, const sc25519 *s);
>void ge25519_pack(unsigned char r[32], const ge25519 *p);
>
>static void Sign_signingKeyPairFromCurve25519(uint8_t keypairOut[64], uint8_t secretCryptoKey[32])
>{
>    //memmove(keypairOut, secretCryptoKey, 32);
>    crypto_hash_sha512(keypairOut, secretCryptoKey, 32);
>    keypairOut[0] &= 248;
>    keypairOut[31] &= 63;
>    keypairOut[31] |= 64;
>    sc25519 sc;
>    ge25519 A;
>    sc25519_from32bytes(&sc,keypairOut);
>    ge25519_scalarmult_base(&A, &sc);
>    ge25519_pack(&keypairOut[32], &A);
>}
>
>#define crypto_sign_ed25519_seed_keypair my_ed25519_seed_keypair
>#define crypto_sign_ed25519_keypair my_ed25519_keypair
>
>static int
>crypto_sign_ed25519_seed_keypair(unsigned char *pk, unsigned char *sk,
>                                 const unsigned char *seed)
>{
>    ge25519 A;
>    sc25519 sc;
>
>    crypto_hash_sha512(sk, seed, 32);
>    sk[0] &= 248;
>    sk[31] &= 63;
>    sk[31] |= 64;
>
>    sc25519_from32bytes(&sc,sk);
>    ge25519_scalarmult_base(&A, &sc);
>    ge25519_pack(pk, &A);
>
>    memmove(sk, seed, 32);
>    memmove(sk + 32, pk, 32);
>
>    return 0;
>}
>
>static int
>crypto_sign_ed25519_keypair(unsigned char *pk, unsigned char *sk)
>{
>    unsigned char seed[32];
>    int           ret;
>
>    randombytes_buf(seed, sizeof seed);
>    ret = crypto_sign_ed25519_seed_keypair(pk, sk, seed);
>    sodium_memzero(seed, sizeof seed);
>
>    return ret;
>}
>
>#endif 
>
>int main(int argc,char **argv) {
>    uint8_t msg[] = { 't','e','s','t','i','n','g','1','2','3' };
>    uint8_t secretkey[32];
>    uint8_t sk[64];
>    uint8_t pk[32];
>    uint8_t sig[64];
>    unsigned long long siglen = sizeof sig;
>    if (sodium_init() == -1) return 1;
>    randombytes_buf(secretkey, 32);
>#if 0
>    Sign_signingKeyPairFromCurve25519(sk,secretkey);
>    memmove(pk,sk+32,32);
>#else
>    //crypto_sign_ed25519_keypair(pk,sk);
>    crypto_sign_ed25519_seed_keypair(pk,sk,secretkey);
>#endif
>    if (crypto_sign_ed25519_detached(sig,&siglen, msg, sizeof msg, sk)) {
>      printf("Sign failed\n");
>      return 1;
>    }
>    printf("siglen = %lld\n",siglen);
>    if (crypto_sign_ed25519_verify_detached(sig,msg, sizeof msg, pk)) {
>      printf("Verify failed\n");
>      return 1;
>    }
>    if (0 && memcmp(pk,sig+32,32)) {
>      printf("Pubkey mismatch\n");
>      return 1;
>    }
>    printf("Verify OK\n");
>    return 0;
>}

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Attachments on bug 1584480: 1446057 | 1446213