ed25519_convert.c (3254B)
1 2 #define TEST_NAME "ed25519_convert" 3 #include "cmptest.h" 4 5 static const unsigned char keypair_seed[crypto_sign_ed25519_SEEDBYTES] = { 6 0x42, 0x11, 0x51, 0xa4, 0x59, 0xfa, 0xea, 0xde, 0x3d, 0x24, 0x71, 7 0x15, 0xf9, 0x4a, 0xed, 0xae, 0x42, 0x31, 0x81, 0x24, 0x09, 0x5a, 8 0xfa, 0xbe, 0x4d, 0x14, 0x51, 0xa5, 0x59, 0xfa, 0xed, 0xee 9 }; 10 11 int 12 main(void) 13 { 14 unsigned char ed25519_pk[crypto_sign_ed25519_PUBLICKEYBYTES]; 15 unsigned char ed25519_skpk[crypto_sign_ed25519_SECRETKEYBYTES]; 16 unsigned char curve25519_pk[crypto_scalarmult_curve25519_BYTES]; 17 unsigned char curve25519_pk2[crypto_scalarmult_curve25519_BYTES]; 18 unsigned char curve25519_sk[crypto_scalarmult_curve25519_BYTES]; 19 char curve25519_pk_hex[crypto_scalarmult_curve25519_BYTES * 2 + 1]; 20 char curve25519_sk_hex[crypto_scalarmult_curve25519_BYTES * 2 + 1]; 21 unsigned int i; 22 23 assert(crypto_sign_ed25519_SEEDBYTES <= crypto_hash_sha512_BYTES); 24 crypto_sign_ed25519_seed_keypair(ed25519_pk, ed25519_skpk, keypair_seed); 25 26 if (crypto_sign_ed25519_pk_to_curve25519(curve25519_pk, ed25519_pk) != 0) { 27 printf("conversion failed\n"); 28 } 29 crypto_sign_ed25519_sk_to_curve25519(curve25519_sk, ed25519_skpk); 30 sodium_bin2hex(curve25519_pk_hex, sizeof curve25519_pk_hex, curve25519_pk, 31 sizeof curve25519_pk); 32 sodium_bin2hex(curve25519_sk_hex, sizeof curve25519_sk_hex, curve25519_sk, 33 sizeof curve25519_sk); 34 35 printf("curve25519 pk: [%s]\n", curve25519_pk_hex); 36 printf("curve25519 sk: [%s]\n", curve25519_sk_hex); 37 38 for (i = 0U; i < 500U; i++) { 39 crypto_sign_ed25519_keypair(ed25519_pk, ed25519_skpk); 40 if (crypto_sign_ed25519_pk_to_curve25519(curve25519_pk, ed25519_pk) != 41 0) { 42 printf("conversion failed\n"); 43 } 44 crypto_sign_ed25519_sk_to_curve25519(curve25519_sk, ed25519_skpk); 45 crypto_scalarmult_curve25519_base(curve25519_pk2, curve25519_sk); 46 if (memcmp(curve25519_pk, curve25519_pk2, sizeof curve25519_pk) != 0) { 47 printf("conversion failed\n"); 48 } 49 } 50 51 sodium_hex2bin(ed25519_pk, crypto_sign_ed25519_PUBLICKEYBYTES, 52 "0000000000000000000000000000000000000000000000000000000000000000" 53 "0000000000000000000000000000000000000000000000000000000000000000", 54 64, NULL, NULL, NULL); 55 assert(crypto_sign_ed25519_pk_to_curve25519(curve25519_pk, ed25519_pk) == -1); 56 sodium_hex2bin(ed25519_pk, crypto_sign_ed25519_PUBLICKEYBYTES, 57 "0200000000000000000000000000000000000000000000000000000000000000" 58 "0000000000000000000000000000000000000000000000000000000000000000", 59 64, NULL, NULL, NULL); 60 assert(crypto_sign_ed25519_pk_to_curve25519(curve25519_pk, ed25519_pk) == -1); 61 sodium_hex2bin(ed25519_pk, crypto_sign_ed25519_PUBLICKEYBYTES, 62 "0500000000000000000000000000000000000000000000000000000000000000" 63 "0000000000000000000000000000000000000000000000000000000000000000", 64 64, NULL, NULL, NULL); 65 assert(crypto_sign_ed25519_pk_to_curve25519(curve25519_pk, ed25519_pk) == -1); 66 67 printf("ok\n"); 68 69 return 0; 70 }