Check that crypto_box[_beforenm] fails with a small order pk

This commit is contained in:
Frank Denis 2015-12-24 19:35:05 +01:00
parent 60d05339fd
commit b80d037b4d

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@ -12,6 +12,11 @@ static const unsigned char bobpk[32]
0xc2, 0xec, 0xe4, 0x35, 0x37, 0x3f, 0x83, 0x43, 0xc8, 0x5b, 0x78, 0xc2, 0xec, 0xe4, 0x35, 0x37, 0x3f, 0x83, 0x43, 0xc8, 0x5b, 0x78,
0x67, 0x4d, 0xad, 0xfc, 0x7e, 0x14, 0x6f, 0x88, 0x2b, 0x4f }; 0x67, 0x4d, 0xad, 0xfc, 0x7e, 0x14, 0x6f, 0x88, 0x2b, 0x4f };
static const unsigned char small_order_p[crypto_scalarmult_BYTES]
= { 0xe0, 0xeb, 0x7a, 0x7c, 0x3b, 0x41, 0xb8, 0xae, 0x16, 0x56, 0xe3,
0xfa, 0xf1, 0x9f, 0xc4, 0x6a, 0xda, 0x09, 0x8d, 0xeb, 0x9c, 0x32,
0xb1, 0xfd, 0x86, 0x62, 0x05, 0x16, 0x5f, 0x49, 0xb8, 0x00 };
static const unsigned char nonce[24] static const unsigned char nonce[24]
= { 0x69, 0x69, 0x6e, 0xe9, 0x55, 0xb6, 0x2b, 0x73, = { 0x69, 0x69, 0x6e, 0xe9, 0x55, 0xb6, 0x2b, 0x73,
0xcd, 0x62, 0xbd, 0xa8, 0x75, 0xfc, 0x73, 0xd6, 0xcd, 0x62, 0xbd, 0xa8, 0x75, 0xfc, 0x73, 0xd6,
@ -51,7 +56,11 @@ int main(void)
} }
printf("\n"); printf("\n");
ret = crypto_box(c, m, 163, nonce, small_order_p, alicesk);
assert(ret == -1);
memset(c, 0, sizeof c); memset(c, 0, sizeof c);
ret = crypto_box_beforenm(k, bobpk, alicesk); ret = crypto_box_beforenm(k, bobpk, alicesk);
assert(ret == 0); assert(ret == 0);
crypto_box_afternm(c, m, 163, nonce, k); crypto_box_afternm(c, m, 163, nonce, k);
@ -62,6 +71,9 @@ int main(void)
} }
printf("\n"); printf("\n");
ret = crypto_box_beforenm(k, small_order_p, alicesk);
assert(ret == -1);
assert(crypto_box_seedbytes() > 0U); assert(crypto_box_seedbytes() > 0U);
assert(crypto_box_publickeybytes() > 0U); assert(crypto_box_publickeybytes() > 0U);
assert(crypto_box_secretkeybytes() > 0U); assert(crypto_box_secretkeybytes() > 0U);