static int deserialise_identity1(struct sshbuf *ids, struct sshkey **keyp, char **commentp) { struct sshkey *key; int r, keybits; u_int32_t bits; char *comment = NULL; if ((key = sshkey_new(KEY_RSA1)) == NULL) return SSH_ERR_ALLOC_FAIL; if ((r = sshbuf_get_u32(ids, &bits)) != 0 || (r = sshbuf_get_bignum1(ids, key->rsa->e)) != 0 || (r = sshbuf_get_bignum1(ids, key->rsa->n)) != 0 || (r = sshbuf_get_cstring(ids, &comment, NULL)) != 0) goto out; keybits = BN_num_bits(key->rsa->n); /* XXX previously we just warned here. I think we should be strict */ if (keybits < 0 || bits != (u_int)keybits) { r = SSH_ERR_KEY_BITS_MISMATCH; goto out; } if (keyp != NULL) { *keyp = key; key = NULL; } if (commentp != NULL) { *commentp = comment; comment = NULL; } r = 0; out: sshkey_free(key); free(comment); return r; }
/* * Parse the public, unencrypted portion of a RSA1 key. */ int sshkey_parse_public_rsa1(struct sshbuf *blob, struct sshkey **keyp, char **commentp) { int r; struct sshkey *pub = NULL; struct sshbuf *copy = NULL; *keyp = NULL; if (commentp != NULL) *commentp = NULL; /* Check that it is at least big enough to contain the ID string. */ if (sshbuf_len(blob) < sizeof(authfile_id_string)) return SSH_ERR_INVALID_FORMAT; /* * Make sure it begins with the id string. Consume the id string * from the buffer. */ if (memcmp(sshbuf_ptr(blob), authfile_id_string, sizeof(authfile_id_string)) != 0) return SSH_ERR_INVALID_FORMAT; /* Make a working copy of the keyblob and skip past the magic */ if ((copy = sshbuf_fromb(blob)) == NULL) return SSH_ERR_ALLOC_FAIL; if ((r = sshbuf_consume(copy, sizeof(authfile_id_string))) != 0) goto out; /* Skip cipher type, reserved data and key bits. */ if ((r = sshbuf_get_u8(copy, NULL)) != 0 || /* cipher type */ (r = sshbuf_get_u32(copy, NULL)) != 0 || /* reserved */ (r = sshbuf_get_u32(copy, NULL)) != 0) /* key bits */ goto out; /* Read the public key from the buffer. */ if ((pub = sshkey_new(KEY_RSA1)) == NULL || (r = sshbuf_get_bignum1(copy, pub->rsa->n)) != 0 || (r = sshbuf_get_bignum1(copy, pub->rsa->e)) != 0) goto out; /* Finally, the comment */ if ((r = sshbuf_get_string(copy, (u_char**)commentp, NULL)) != 0) goto out; /* The encrypted private part is not parsed by this function. */ r = 0; *keyp = pub; pub = NULL; out: if (copy != NULL) sshbuf_free(copy); if (pub != NULL) sshkey_free(pub); return r; }
static struct sshkey * keygrab_ssh1(con *c) { static struct sshkey *rsa; static struct sshbuf *msg; int r; u_char type; if (rsa == NULL) { if ((rsa = sshkey_new(KEY_RSA1)) == NULL) { error("%s: sshkey_new failed", __func__); return NULL; } if ((msg = sshbuf_new()) == NULL) fatal("%s: sshbuf_new failed", __func__); } if ((r = sshbuf_put(msg, c->c_data, c->c_plen)) != 0 || (r = sshbuf_consume(msg, 8 - (c->c_plen & 7))) != 0 || /* padding */ (r = sshbuf_get_u8(msg, &type)) != 0) goto buf_err; if (type != (int) SSH_SMSG_PUBLIC_KEY) { error("%s: invalid packet type", c->c_name); sshbuf_reset(msg); return NULL; } if ((r = sshbuf_consume(msg, 8)) != 0 || /* cookie */ /* server key */ (r = sshbuf_get_u32(msg, NULL)) != 0 || (r = sshbuf_get_bignum1(msg, NULL)) != 0 || (r = sshbuf_get_bignum1(msg, NULL)) != 0 || /* host key */ (r = sshbuf_get_u32(msg, NULL)) != 0 || (r = sshbuf_get_bignum1(msg, rsa->rsa->e)) != 0 || (r = sshbuf_get_bignum1(msg, rsa->rsa->n)) != 0) { buf_err: error("%s: buffer error: %s", __func__, ssh_err(r)); sshbuf_reset(msg); return NULL; } sshbuf_reset(msg); return (rsa); }
int buffer_get_bignum_ret(Buffer *buffer, BIGNUM *value) { int ret; if ((ret = sshbuf_get_bignum1(buffer, value)) != 0) { error("%s: %s", __func__, ssh_err(ret)); return -1; } return 0; }
static void attempt_parse_blob(u_char *blob, size_t len) { struct sshbuf *p1; BIGNUM *bn; #ifdef OPENSSL_HAS_NISTP256 EC_KEY *eck; #endif u_char *s; size_t l; u_int8_t u8; u_int16_t u16; u_int32_t u32; u_int64_t u64; p1 = sshbuf_new(); ASSERT_PTR_NE(p1, NULL); ASSERT_INT_EQ(sshbuf_put(p1, blob, len), 0); sshbuf_get_u8(p1, &u8); sshbuf_get_u16(p1, &u16); sshbuf_get_u32(p1, &u32); sshbuf_get_u64(p1, &u64); if (sshbuf_get_string(p1, &s, &l) == 0) { bzero(s, l); free(s); } bn = BN_new(); sshbuf_get_bignum1(p1, bn); BN_clear_free(bn); bn = BN_new(); sshbuf_get_bignum2(p1, bn); BN_clear_free(bn); #ifdef OPENSSL_HAS_NISTP256 eck = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1); ASSERT_PTR_NE(eck, NULL); sshbuf_get_eckey(p1, eck); EC_KEY_free(eck); #endif sshbuf_free(p1); }
static int sshkey_parse_private_rsa1(struct sshbuf *blob, const char *passphrase, struct sshkey **keyp, char **commentp) { int r; u_int16_t check1, check2; u_int8_t cipher_type; struct sshbuf *decrypted = NULL, *copy = NULL; u_char *cp; char *comment = NULL; struct sshcipher_ctx ciphercontext; const struct sshcipher *cipher; struct sshkey *prv = NULL; *keyp = NULL; if (commentp != NULL) *commentp = NULL; /* Check that it is at least big enough to contain the ID string. */ if (sshbuf_len(blob) < sizeof(authfile_id_string)) return SSH_ERR_INVALID_FORMAT; /* * Make sure it begins with the id string. Consume the id string * from the buffer. */ if (memcmp(sshbuf_ptr(blob), authfile_id_string, sizeof(authfile_id_string)) != 0) return SSH_ERR_INVALID_FORMAT; if ((prv = sshkey_new_private(KEY_RSA1)) == NULL) { r = SSH_ERR_ALLOC_FAIL; goto out; } if ((copy = sshbuf_fromb(blob)) == NULL || (decrypted = sshbuf_new()) == NULL) { r = SSH_ERR_ALLOC_FAIL; goto out; } if ((r = sshbuf_consume(copy, sizeof(authfile_id_string))) != 0) goto out; /* Read cipher type. */ if ((r = sshbuf_get_u8(copy, &cipher_type)) != 0 || (r = sshbuf_get_u32(copy, NULL)) != 0) /* reserved */ goto out; /* Read the public key and comment from the buffer. */ if ((r = sshbuf_get_u32(copy, NULL)) != 0 || /* key bits */ (r = sshbuf_get_bignum1(copy, prv->rsa->n)) != 0 || (r = sshbuf_get_bignum1(copy, prv->rsa->e)) != 0 || (r = sshbuf_get_cstring(copy, &comment, NULL)) != 0) goto out; /* Check that it is a supported cipher. */ cipher = cipher_by_number(cipher_type); if (cipher == NULL) { r = SSH_ERR_KEY_UNKNOWN_CIPHER; goto out; } /* Initialize space for decrypted data. */ if ((r = sshbuf_reserve(decrypted, sshbuf_len(copy), &cp)) != 0) goto out; /* Rest of the buffer is encrypted. Decrypt it using the passphrase. */ if ((r = cipher_set_key_string(&ciphercontext, cipher, passphrase, CIPHER_DECRYPT)) != 0) goto out; if ((r = cipher_crypt(&ciphercontext, cp, sshbuf_ptr(copy), sshbuf_len(copy), 0, 0)) != 0) { cipher_cleanup(&ciphercontext); goto out; } if ((r = cipher_cleanup(&ciphercontext)) != 0) goto out; if ((r = sshbuf_get_u16(decrypted, &check1)) != 0 || (r = sshbuf_get_u16(decrypted, &check2)) != 0) goto out; if (check1 != check2) { r = SSH_ERR_KEY_WRONG_PASSPHRASE; goto out; } /* Read the rest of the private key. */ if ((r = sshbuf_get_bignum1(decrypted, prv->rsa->d)) != 0 || (r = sshbuf_get_bignum1(decrypted, prv->rsa->iqmp)) != 0 || (r = sshbuf_get_bignum1(decrypted, prv->rsa->q)) != 0 || (r = sshbuf_get_bignum1(decrypted, prv->rsa->p)) != 0) goto out; /* calculate p-1 and q-1 */ if ((r = rsa_generate_additional_parameters(prv->rsa)) != 0) goto out; /* enable blinding */ if (RSA_blinding_on(prv->rsa, NULL) != 1) { r = SSH_ERR_LIBCRYPTO_ERROR; goto out; } r = 0; *keyp = prv; prv = NULL; if (commentp != NULL) { *commentp = comment; comment = NULL; } out: bzero(&ciphercontext, sizeof(ciphercontext)); if (comment != NULL) free(comment); if (prv != NULL) sshkey_free(prv); if (copy != NULL) sshbuf_free(copy); if (decrypted != NULL) sshbuf_free(decrypted); return r; }
void sshbuf_getput_crypto_tests(void) { struct sshbuf *p1; const u_char *d; size_t s; BIGNUM *bn, *bn2, *bn_x, *bn_y; /* This one has num_bits != num_bytes * 8 to test bignum1 encoding */ const char *hexbn1 = "0102030405060708090a0b0c0d0e0f10"; /* This one has MSB set to test bignum2 encoding negative-avoidance */ const char *hexbn2 = "f0e0d0c0b0a0908070605040302010007fff11"; u_char expbn1[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, }; u_char expbn2[] = { 0xf0, 0xe0, 0xd0, 0xc0, 0xb0, 0xa0, 0x90, 0x80, 0x70, 0x60, 0x50, 0x40, 0x30, 0x20, 0x10, 0x00, 0x7f, 0xff, 0x11 }; int ec256_nid = NID_X9_62_prime256v1; char *ec256_x = "0C828004839D0106AA59575216191357" "34B451459DADB586677EF9DF55784999"; char *ec256_y = "4D196B50F0B4E94B3C73E3A9D4CD9DF2" "C8F9A35E42BDD047550F69D80EC23CD4"; u_char expec256[] = { 0x04, 0x0c, 0x82, 0x80, 0x04, 0x83, 0x9d, 0x01, 0x06, 0xaa, 0x59, 0x57, 0x52, 0x16, 0x19, 0x13, 0x57, 0x34, 0xb4, 0x51, 0x45, 0x9d, 0xad, 0xb5, 0x86, 0x67, 0x7e, 0xf9, 0xdf, 0x55, 0x78, 0x49, 0x99, 0x4d, 0x19, 0x6b, 0x50, 0xf0, 0xb4, 0xe9, 0x4b, 0x3c, 0x73, 0xe3, 0xa9, 0xd4, 0xcd, 0x9d, 0xf2, 0xc8, 0xf9, 0xa3, 0x5e, 0x42, 0xbd, 0xd0, 0x47, 0x55, 0x0f, 0x69, 0xd8, 0x0e, 0xc2, 0x3c, 0xd4 }; EC_KEY *eck; EC_POINT *ecp; int r; #define MKBN(b, bnn) \ do { \ bnn = NULL; \ ASSERT_INT_GT(BN_hex2bn(&bnn, b), 0); \ } while (0) TEST_START("sshbuf_put_bignum1"); MKBN(hexbn1, bn); p1 = sshbuf_new(); ASSERT_PTR_NE(p1, NULL); ASSERT_INT_EQ(sshbuf_put_bignum1(p1, bn), 0); ASSERT_SIZE_T_EQ(sshbuf_len(p1), sizeof(expbn1) + 2); ASSERT_U16_EQ(PEEK_U16(sshbuf_ptr(p1)), (u_int16_t)BN_num_bits(bn)); ASSERT_MEM_EQ(sshbuf_ptr(p1) + 2, expbn1, sizeof(expbn1)); BN_free(bn); sshbuf_free(p1); TEST_DONE(); TEST_START("sshbuf_put_bignum1 limited"); MKBN(hexbn1, bn); p1 = sshbuf_new(); ASSERT_PTR_NE(p1, NULL); ASSERT_INT_EQ(sshbuf_set_max_size(p1, sizeof(expbn1) + 1), 0); r = sshbuf_put_bignum1(p1, bn); ASSERT_INT_EQ(r, SSH_ERR_NO_BUFFER_SPACE); ASSERT_SIZE_T_EQ(sshbuf_len(p1), 0); BN_free(bn); sshbuf_free(p1); TEST_DONE(); TEST_START("sshbuf_put_bignum1 bn2"); MKBN(hexbn2, bn); p1 = sshbuf_new(); ASSERT_PTR_NE(p1, NULL); ASSERT_INT_EQ(sshbuf_put_bignum1(p1, bn), 0); ASSERT_SIZE_T_EQ(sshbuf_len(p1), sizeof(expbn2) + 2); ASSERT_U16_EQ(PEEK_U16(sshbuf_ptr(p1)), (u_int16_t)BN_num_bits(bn)); ASSERT_MEM_EQ(sshbuf_ptr(p1) + 2, expbn2, sizeof(expbn2)); BN_free(bn); sshbuf_free(p1); TEST_DONE(); TEST_START("sshbuf_put_bignum1 bn2 limited"); MKBN(hexbn2, bn); p1 = sshbuf_new(); ASSERT_PTR_NE(p1, NULL); ASSERT_INT_EQ(sshbuf_set_max_size(p1, sizeof(expbn1) + 1), 0); r = sshbuf_put_bignum1(p1, bn); ASSERT_INT_EQ(r, SSH_ERR_NO_BUFFER_SPACE); ASSERT_SIZE_T_EQ(sshbuf_len(p1), 0); BN_free(bn); sshbuf_free(p1); TEST_DONE(); TEST_START("sshbuf_put_bignum2"); MKBN(hexbn1, bn); p1 = sshbuf_new(); ASSERT_PTR_NE(p1, NULL); ASSERT_INT_EQ(sshbuf_put_bignum2(p1, bn), 0); ASSERT_SIZE_T_EQ(sshbuf_len(p1), sizeof(expbn1) + 4); ASSERT_U32_EQ(PEEK_U32(sshbuf_ptr(p1)), (u_int32_t)BN_num_bytes(bn)); ASSERT_MEM_EQ(sshbuf_ptr(p1) + 4, expbn1, sizeof(expbn1)); BN_free(bn); sshbuf_free(p1); TEST_DONE(); TEST_START("sshbuf_put_bignum2 limited"); MKBN(hexbn1, bn); p1 = sshbuf_new(); ASSERT_PTR_NE(p1, NULL); ASSERT_INT_EQ(sshbuf_set_max_size(p1, sizeof(expbn1) + 3), 0); r = sshbuf_put_bignum2(p1, bn); ASSERT_INT_EQ(r, SSH_ERR_NO_BUFFER_SPACE); ASSERT_SIZE_T_EQ(sshbuf_len(p1), 0); BN_free(bn); sshbuf_free(p1); TEST_DONE(); TEST_START("sshbuf_put_bignum2 bn2"); MKBN(hexbn2, bn); p1 = sshbuf_new(); ASSERT_PTR_NE(p1, NULL); ASSERT_INT_EQ(sshbuf_put_bignum2(p1, bn), 0); ASSERT_SIZE_T_EQ(sshbuf_len(p1), sizeof(expbn2) + 4 + 1); /* MSB */ ASSERT_U32_EQ(PEEK_U32(sshbuf_ptr(p1)), (u_int32_t)BN_num_bytes(bn) + 1); ASSERT_U8_EQ(*(sshbuf_ptr(p1) + 4), 0x00); ASSERT_MEM_EQ(sshbuf_ptr(p1) + 5, expbn2, sizeof(expbn2)); BN_free(bn); sshbuf_free(p1); TEST_DONE(); TEST_START("sshbuf_put_bignum2 bn2 limited"); MKBN(hexbn2, bn); p1 = sshbuf_new(); ASSERT_PTR_NE(p1, NULL); ASSERT_INT_EQ(sshbuf_set_max_size(p1, sizeof(expbn2) + 3), 0); r = sshbuf_put_bignum2(p1, bn); ASSERT_INT_EQ(r, SSH_ERR_NO_BUFFER_SPACE); ASSERT_SIZE_T_EQ(sshbuf_len(p1), 0); BN_free(bn); sshbuf_free(p1); TEST_DONE(); TEST_START("sshbuf_get_bignum1"); MKBN(hexbn1, bn); p1 = sshbuf_new(); ASSERT_PTR_NE(p1, NULL); ASSERT_INT_EQ(sshbuf_put_u16(p1, BN_num_bits(bn)), 0); ASSERT_INT_EQ(sshbuf_put(p1, expbn1, sizeof(expbn1)), 0); ASSERT_SIZE_T_EQ(sshbuf_len(p1), 2 + sizeof(expbn1)); ASSERT_INT_EQ(sshbuf_put_u16(p1, 0xd00f), 0); bn2 = BN_new(); ASSERT_INT_EQ(sshbuf_get_bignum1(p1, bn2), 0); ASSERT_BIGNUM_EQ(bn, bn2); ASSERT_SIZE_T_EQ(sshbuf_len(p1), 2); BN_free(bn); BN_free(bn2); sshbuf_free(p1); TEST_DONE(); TEST_START("sshbuf_get_bignum1 truncated"); MKBN(hexbn1, bn); p1 = sshbuf_new(); ASSERT_PTR_NE(p1, NULL); ASSERT_INT_EQ(sshbuf_put_u16(p1, BN_num_bits(bn)), 0); ASSERT_INT_EQ(sshbuf_put(p1, expbn1, sizeof(expbn1) - 1), 0); ASSERT_SIZE_T_EQ(sshbuf_len(p1), 2 + sizeof(expbn1) - 1); bn2 = BN_new(); r = sshbuf_get_bignum1(p1, bn2); ASSERT_INT_EQ(r, SSH_ERR_MESSAGE_INCOMPLETE); ASSERT_SIZE_T_EQ(sshbuf_len(p1), 2 + sizeof(expbn1) - 1); BN_free(bn); BN_free(bn2); sshbuf_free(p1); TEST_DONE(); TEST_START("sshbuf_get_bignum1 giant"); MKBN(hexbn1, bn); p1 = sshbuf_new(); ASSERT_PTR_NE(p1, NULL); ASSERT_INT_EQ(sshbuf_put_u16(p1, 0xffff), 0); ASSERT_INT_EQ(sshbuf_reserve(p1, (0xffff + 7) / 8, NULL), 0); ASSERT_SIZE_T_EQ(sshbuf_len(p1), 2 + ((0xffff + 7) / 8)); bn2 = BN_new(); r = sshbuf_get_bignum1(p1, bn2); ASSERT_INT_EQ(r, SSH_ERR_BIGNUM_TOO_LARGE); ASSERT_SIZE_T_EQ(sshbuf_len(p1), 2 + ((0xffff + 7) / 8)); BN_free(bn); BN_free(bn2); sshbuf_free(p1); TEST_DONE(); TEST_START("sshbuf_get_bignum1 bn2"); MKBN(hexbn2, bn); p1 = sshbuf_new(); ASSERT_PTR_NE(p1, NULL); ASSERT_INT_EQ(sshbuf_put_u16(p1, BN_num_bits(bn)), 0); ASSERT_INT_EQ(sshbuf_put(p1, expbn2, sizeof(expbn2)), 0); ASSERT_SIZE_T_EQ(sshbuf_len(p1), 2 + sizeof(expbn2)); ASSERT_INT_EQ(sshbuf_put_u16(p1, 0xd00f), 0); bn2 = BN_new(); ASSERT_INT_EQ(sshbuf_get_bignum1(p1, bn2), 0); ASSERT_BIGNUM_EQ(bn, bn2); ASSERT_SIZE_T_EQ(sshbuf_len(p1), 2); BN_free(bn); BN_free(bn2); sshbuf_free(p1); TEST_DONE(); TEST_START("sshbuf_get_bignum1 bn2 truncated"); MKBN(hexbn2, bn); p1 = sshbuf_new(); ASSERT_PTR_NE(p1, NULL); ASSERT_INT_EQ(sshbuf_put_u16(p1, BN_num_bits(bn)), 0); ASSERT_INT_EQ(sshbuf_put(p1, expbn2, sizeof(expbn2) - 1), 0); ASSERT_SIZE_T_EQ(sshbuf_len(p1), 2 + sizeof(expbn2) - 1); bn2 = BN_new(); r = sshbuf_get_bignum1(p1, bn2); ASSERT_INT_EQ(r, SSH_ERR_MESSAGE_INCOMPLETE); ASSERT_SIZE_T_EQ(sshbuf_len(p1), 2 + sizeof(expbn2) - 1); BN_free(bn); BN_free(bn2); sshbuf_free(p1); TEST_DONE(); TEST_START("sshbuf_get_bignum2"); MKBN(hexbn1, bn); p1 = sshbuf_new(); ASSERT_PTR_NE(p1, NULL); ASSERT_INT_EQ(sshbuf_put_u32(p1, BN_num_bytes(bn)), 0); ASSERT_INT_EQ(sshbuf_put(p1, expbn1, sizeof(expbn1)), 0); ASSERT_SIZE_T_EQ(sshbuf_len(p1), 4 + sizeof(expbn1)); ASSERT_INT_EQ(sshbuf_put_u16(p1, 0xd00f), 0); bn2 = BN_new(); ASSERT_INT_EQ(sshbuf_get_bignum2(p1, bn2), 0); ASSERT_BIGNUM_EQ(bn, bn2); ASSERT_SIZE_T_EQ(sshbuf_len(p1), 2); BN_free(bn); BN_free(bn2); sshbuf_free(p1); TEST_DONE(); TEST_START("sshbuf_get_bignum2 truncated"); MKBN(hexbn1, bn); p1 = sshbuf_new(); ASSERT_PTR_NE(p1, NULL); ASSERT_INT_EQ(sshbuf_put_u32(p1, BN_num_bytes(bn)), 0); ASSERT_INT_EQ(sshbuf_put(p1, expbn1, sizeof(expbn1) - 1), 0); bn2 = BN_new(); r = sshbuf_get_bignum2(p1, bn2); ASSERT_INT_EQ(r, SSH_ERR_MESSAGE_INCOMPLETE); ASSERT_SIZE_T_EQ(sshbuf_len(p1), sizeof(expbn1) + 3); BN_free(bn); BN_free(bn2); sshbuf_free(p1); TEST_DONE(); TEST_START("sshbuf_get_bignum2 giant"); MKBN(hexbn1, bn); p1 = sshbuf_new(); ASSERT_PTR_NE(p1, NULL); ASSERT_INT_EQ(sshbuf_put_u32(p1, 65536), 0); ASSERT_INT_EQ(sshbuf_reserve(p1, 65536, NULL), 0); bn2 = BN_new(); r = sshbuf_get_bignum2(p1, bn2); ASSERT_INT_EQ(r, SSH_ERR_BIGNUM_TOO_LARGE); ASSERT_SIZE_T_EQ(sshbuf_len(p1), 65536 + 4); BN_free(bn); BN_free(bn2); sshbuf_free(p1); TEST_DONE(); TEST_START("sshbuf_get_bignum2 bn2"); MKBN(hexbn2, bn); p1 = sshbuf_new(); ASSERT_PTR_NE(p1, NULL); ASSERT_INT_EQ(sshbuf_put_u32(p1, BN_num_bytes(bn) + 1), 0); /* MSB */ ASSERT_INT_EQ(sshbuf_put_u8(p1, 0x00), 0); ASSERT_INT_EQ(sshbuf_put(p1, expbn2, sizeof(expbn2)), 0); ASSERT_SIZE_T_EQ(sshbuf_len(p1), 4 + 1 + sizeof(expbn2)); ASSERT_INT_EQ(sshbuf_put_u16(p1, 0xd00f), 0); bn2 = BN_new(); ASSERT_INT_EQ(sshbuf_get_bignum2(p1, bn2), 0); ASSERT_BIGNUM_EQ(bn, bn2); ASSERT_SIZE_T_EQ(sshbuf_len(p1), 2); BN_free(bn); BN_free(bn2); sshbuf_free(p1); TEST_DONE(); TEST_START("sshbuf_get_bignum2 bn2 truncated"); MKBN(hexbn2, bn); p1 = sshbuf_new(); ASSERT_PTR_NE(p1, NULL); ASSERT_INT_EQ(sshbuf_put_u32(p1, BN_num_bytes(bn) + 1), 0); ASSERT_INT_EQ(sshbuf_put_u8(p1, 0x00), 0); ASSERT_INT_EQ(sshbuf_put(p1, expbn2, sizeof(expbn2) - 1), 0); bn2 = BN_new(); r = sshbuf_get_bignum2(p1, bn2); ASSERT_INT_EQ(r, SSH_ERR_MESSAGE_INCOMPLETE); ASSERT_SIZE_T_EQ(sshbuf_len(p1), sizeof(expbn2) + 1 + 4 - 1); BN_free(bn); BN_free(bn2); sshbuf_free(p1); TEST_DONE(); TEST_START("sshbuf_get_bignum2 bn2 negative"); MKBN(hexbn2, bn); p1 = sshbuf_new(); ASSERT_PTR_NE(p1, NULL); ASSERT_INT_EQ(sshbuf_put_u32(p1, BN_num_bytes(bn)), 0); ASSERT_INT_EQ(sshbuf_put(p1, expbn2, sizeof(expbn2)), 0); bn2 = BN_new(); r = sshbuf_get_bignum2(p1, bn2); ASSERT_INT_EQ(r, SSH_ERR_BIGNUM_IS_NEGATIVE); ASSERT_SIZE_T_EQ(sshbuf_len(p1), sizeof(expbn2) + 4); BN_free(bn); BN_free(bn2); sshbuf_free(p1); TEST_DONE(); TEST_START("sshbuf_put_ec"); eck = EC_KEY_new_by_curve_name(ec256_nid); ASSERT_PTR_NE(eck, NULL); ecp = EC_POINT_new(EC_KEY_get0_group(eck)); ASSERT_PTR_NE(ecp, NULL); MKBN(ec256_x, bn_x); MKBN(ec256_y, bn_y); ASSERT_INT_EQ(EC_POINT_set_affine_coordinates_GFp( EC_KEY_get0_group(eck), ecp, bn_x, bn_y, NULL), 1); ASSERT_INT_EQ(EC_KEY_set_public_key(eck, ecp), 1); EC_POINT_free(ecp); p1 = sshbuf_new(); ASSERT_PTR_NE(p1, NULL); ASSERT_INT_EQ(sshbuf_put_eckey(p1, eck), 0); ASSERT_INT_EQ(sshbuf_get_string_direct(p1, &d, &s), 0); ASSERT_SIZE_T_EQ(s, sizeof(expec256)); ASSERT_MEM_EQ(d, expec256, sizeof(expec256)); sshbuf_free(p1); EC_KEY_free(eck); TEST_DONE(); TEST_START("sshbuf_get_ec"); eck = EC_KEY_new_by_curve_name(ec256_nid); ASSERT_PTR_NE(eck, NULL); p1 = sshbuf_new(); ASSERT_PTR_NE(p1, NULL); ASSERT_INT_EQ(sshbuf_put_string(p1, expec256, sizeof(expec256)), 0); ASSERT_SIZE_T_EQ(sshbuf_len(p1), sizeof(expec256) + 4); ASSERT_INT_EQ(sshbuf_put_u8(p1, 0x00), 0); ASSERT_INT_EQ(sshbuf_get_eckey(p1, eck), 0); bn_x = BN_new(); bn_y = BN_new(); ASSERT_PTR_NE(bn_x, NULL); ASSERT_PTR_NE(bn_y, NULL); ASSERT_INT_EQ(EC_POINT_get_affine_coordinates_GFp( EC_KEY_get0_group(eck), EC_KEY_get0_public_key(eck), bn_x, bn_y, NULL), 1); MKBN(ec256_x, bn); MKBN(ec256_y, bn2); ASSERT_INT_EQ(BN_cmp(bn_x, bn), 0); ASSERT_INT_EQ(BN_cmp(bn_y, bn2), 0); ASSERT_SIZE_T_EQ(sshbuf_len(p1), 1); sshbuf_free(p1); EC_KEY_free(eck); BN_free(bn_x); BN_free(bn_y); BN_free(bn); BN_free(bn2); TEST_DONE(); }