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phydro.c
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phydro.c
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#include "phydro.h"
#include "ext/standard/info.h"
#if PHP_MAJOR_VERSION < 7
# error Phydro requires PHP version 7 or later
#endif
#if SIZEOF_LONG < 5
# warn Phydro uses unsigned 32bit integers, but this PHP only supports signed 32bit, some positive values may appear negative
#endif
static zend_bool validate(zend_string *str, const char *label, size_t len) {
if (ZSTR_LEN(str) == len) { return 1; }
php_error(E_RECOVERABLE_ERROR, "%s must be precisely %ld bytes", label, len);
return 0;
}
/*************************************************************************/
/* Random */
/* {{{ proto int phydro_random_u32() */
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO(random_u32_arginfo, IS_LONG, 1)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_random_u32) {
zend_parse_parameters_none();
RETURN_LONG((zend_long)hydro_random_u32());
}
/* }}} */
/* {{{ proto int phydro_random_uniform(int $upper_bound) */
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(random_uniform_arginfo, ZEND_RETURN_VALUE, 1, IS_LONG, 1)
ZEND_ARG_TYPE_INFO(0, upper_bound, IS_LONG, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_random_uniform) {
zend_long upper_bound;
uint32_t ub;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "l", &upper_bound) == FAILURE) { return; }
ub = (uint32_t)upper_bound;
if (((zend_long)ub) != upper_bound) {
php_error(E_RECOVERABLE_ERROR, "Upper bound %ld overflows libhydrogen's uint32_t limit", upper_bound);
return;
}
if (ub < 2) {
php_error(E_RECOVERABLE_ERROR, "Invalid upper bound %ld, this will always result in zero", upper_bound);
return;
}
RETURN_LONG((zend_long)hydro_random_uniform((uint32_t)upper_bound));
} /* }}} */
/* {{{ proto string phydro_random_buf(int $len[, ?string $seed = null]) */
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(random_buf_arginfo, ZEND_RETURN_VALUE, 1, IS_STRING, 1)
ZEND_ARG_TYPE_INFO(0, length, IS_LONG, 0)
ZEND_ARG_TYPE_INFO(0, seed, IS_STRING, 1)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_random_buf) {
zend_long len;
zend_string *seed = NULL, *ret;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "l|S!", &len, &seed) == FAILURE) { return; }
if ((len < 0) || (len > 0x7FFFFFFF)) {
php_error(E_RECOVERABLE_ERROR, "Invalid buffer length: %ld", len);
return;
}
ret = zend_string_alloc(len, 0);
if (seed) {
if (ZSTR_LEN(seed) != hydro_random_SEEDBYTES) {
zend_string_release(ret);
php_error(E_RECOVERABLE_ERROR, "Seed must be precisely %d bytes long", hydro_random_SEEDBYTES);
return;
}
hydro_random_buf_deterministic(ZSTR_VAL(ret), len, ZSTR_VAL(seed));
} else {
hydro_random_buf(ZSTR_VAL(ret), len);
}
ZSTR_VAL(ret)[len] = 0;
ZSTR_LEN(ret) = len;
RETURN_NEW_STR(ret);
} /* }}} */
/* {{{ proto void phydro_random_ratchet() */
static PHP_FUNCTION(phydro_random_ratchet) {
zend_parse_parameters_none();
hydro_random_ratchet();
} /* }}} */
/* {{{ proto void phydro_random_reseed() */
static PHP_FUNCTION(phydro_random_reseed) {
zend_parse_parameters_none();
hydro_random_reseed();
} /* }}} */
/*************************************************************************/
/* Hash */
/* {{{ proto string phydro_hash_keygen() */
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO(hash_keygen_arginfo, IS_STRING, 1)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_hash_keygen) {
uint8_t hash[hydro_hash_KEYBYTES];
zend_parse_parameters_none();
hydro_hash_keygen(hash);
RETURN_STRINGL(hash, sizeof(hash));
} /* }}} */
/* {{{ proto PhydroHash phydro_hash_init(string $context, string $key) */
ZEND_BEGIN_ARG_WITH_RETURN_OBJ_INFO_EX(hash_init_arginfo, ZEND_RETURN_VALUE, 2, PhydroHash, 1)
ZEND_ARG_TYPE_INFO(0, context, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, key, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_hash_init) {
zend_string *context, *key;
zend_object *ret;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "SS", &context, &key) == FAILURE) { return; }
if (!validate(context, "Context", hydro_hash_CONTEXTBYTES) ||
!validate(key, "Key", hydro_hash_KEYBYTES)) {
return;
}
ret = phydro_hash_init(context, key);
if (!ret) {
php_error(E_RECOVERABLE_ERROR, "Failure initializing hash context");
return;
}
RETURN_OBJ(ret);
} /* }}} */
/* {{{ proto bool phydro_hash_update(PhydroHash $hash, string $data) */
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(hash_update_arginfo, ZEND_RETURN_VALUE, 2, _IS_BOOL, 1)
ZEND_ARG_OBJ_INFO(0, hash, PhydroHash, 0)
ZEND_ARG_TYPE_INFO(0, data, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_hash_update) {
zval *hash;
zend_string *data;
hydro_hash_state* state;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "OS", &hash, phydro_hash_ce, &data) == FAILURE) { return; }
state = phydro_hash_get_state(Z_OBJ_P(hash));
if (!state) {
php_error(E_RECOVERABLE_ERROR, "Error getting state from PhydroHash object");
RETURN_FALSE;
}
if (hydro_hash_update(state, ZSTR_VAL(data), ZSTR_LEN(data))) {
php_error(E_RECOVERABLE_ERROR, "Failure updating hash");
RETURN_FALSE;
}
RETURN_TRUE;
} /* }}} */
/* {{{ proto string phydro_hash_final(PhydroHash $hash, int $len) */
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(hash_final_arginfo, ZEND_RETURN_VALUE, 2, IS_STRING, 1)
ZEND_ARG_OBJ_INFO(0, hash, PhydroHash, 0)
ZEND_ARG_TYPE_INFO(0, len, IS_LONG, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_hash_final) {
zval *hash;
zend_long len;
hydro_hash_state* state;
zend_string *ret;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "Ol", &hash, phydro_hash_ce, &len) == FAILURE) { return; }
state = phydro_hash_get_state(Z_OBJ_P(hash));
if (!state) {
php_error(E_RECOVERABLE_ERROR, "Error getting state from PhydroHash object");
return;
}
if ((len < hydro_hash_BYTES_MIN) || (len > hydro_hash_BYTES_MAX)) {
php_error(E_RECOVERABLE_ERROR, "Invalid output length: %ld", len);
return;
}
ret = zend_string_alloc(len, 0);
if (hydro_hash_final(state, ZSTR_VAL(ret), len)) {
php_error(E_RECOVERABLE_ERROR, "Failure updating hash");
return;
}
RETURN_NEW_STR(ret);
} /* }}} */
/* {{{ proto string phydro_hash_hash(string $data, int $len, string $context, string $key) */
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(hash_hash_arginfo, ZEND_RETURN_VALUE, 4, IS_STRING, 1)
ZEND_ARG_TYPE_INFO(0, data, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, len, IS_LONG, 0)
ZEND_ARG_TYPE_INFO(0, context, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, key, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_hash_hash) {
zend_string *data, *context, *key, *ret;
zend_long len;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "SlSS", &data, &len, &context, &key) == FAILURE) { return; }
if ((len < hydro_hash_BYTES_MIN) || (len > hydro_hash_BYTES_MAX)) {
php_error(E_RECOVERABLE_ERROR, "Invalid output length: %ld", len);
return;
}
if (!validate(context, "Context", hydro_hash_CONTEXTBYTES) ||
!validate(key, "Key", hydro_hash_KEYBYTES)) {
return;
}
ret = zend_string_alloc(len, 0);
if (hydro_hash_hash(ZSTR_VAL(ret), len, ZSTR_VAL(data), ZSTR_LEN(data), ZSTR_VAL(context), ZSTR_VAL(key))) {
php_error(E_RECOVERABLE_ERROR, "Failure hashing input");
return;
}
ZSTR_VAL(ret)[len] = 0;
ZSTR_LEN(ret) = len;
RETURN_NEW_STR(ret);
} /* }}} */
/*************************************************************************/
/* Secretbox */
/* {{{ proto string phydro_secretbox_keygen() */
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(box_keygen_arginfo, ZEND_RETURN_VALUE, 0, IS_STRING, 1)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_secretbox_keygen) {
uint8_t key[hydro_secretbox_KEYBYTES];
zend_parse_parameters_none();
hydro_secretbox_keygen(key);
RETURN_STRINGL(key, sizeof(key));
} /* }}} */
/* {{{ proto string phydro_secretbox_encrypt(string $message, int $id, string $context, string $key) */
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(box_encrypt_arginfo, ZEND_RETURN_VALUE, 4, IS_STRING, 1)
ZEND_ARG_TYPE_INFO(0, message, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, id, IS_LONG, 0)
ZEND_ARG_TYPE_INFO(0, context, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, key, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_secretbox_encrypt) {
zend_string *message, *context, *key, *ret;
zend_long id;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "SlSS", &message, &id, &context, &key) == FAILURE) { return; }
if (!validate(context, "Context", hydro_secretbox_CONTEXTBYTES) ||
!validate(key, "Key", hydro_secretbox_KEYBYTES)) {
return;
}
ret = zend_string_alloc(ZSTR_LEN(message) + hydro_secretbox_HEADERBYTES, 0);
if (hydro_secretbox_encrypt(ZSTR_VAL(ret), ZSTR_VAL(message), ZSTR_LEN(message), (uint64_t)id, ZSTR_VAL(context), ZSTR_VAL(key))) {
zend_string_release(ret);
php_error(E_RECOVERABLE_ERROR, "Error encrypting payload");
return;
}
ZSTR_VAL(ret)[ZSTR_LEN(message) + hydro_secretbox_HEADERBYTES] = 0;
ZSTR_LEN(ret) = ZSTR_LEN(message) + hydro_secretbox_HEADERBYTES;
RETURN_NEW_STR(ret);
} /* }}} */
/* {{{ proto string phydro_secretbox_decrypt(string $ciphertext, int $id, string $context, string $key) */
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(box_decrypt_arginfo, ZEND_RETURN_VALUE, 4, IS_STRING, 1)
ZEND_ARG_TYPE_INFO(0, ciphertext, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, id, IS_LONG, 0)
ZEND_ARG_TYPE_INFO(0, context, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, key, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_secretbox_decrypt) {
zend_string *ciphertext, *context, *key, *ret;
zend_long id, ret_len;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "SlSS", &ciphertext, &id, &context, &key) == FAILURE) { return; }
if (!validate(context, "Context", hydro_secretbox_CONTEXTBYTES) ||
!validate(key, "Key", hydro_secretbox_KEYBYTES)) {
return;
}
ret_len = ZSTR_LEN(ciphertext) - hydro_secretbox_HEADERBYTES;
ret = zend_string_alloc(ret_len, 0);
if (hydro_secretbox_decrypt(ZSTR_VAL(ret), ZSTR_VAL(ciphertext), ZSTR_LEN(ciphertext), (uint64_t)id, ZSTR_VAL(context), ZSTR_VAL(key))) {
zend_string_release(ret);
php_error(E_RECOVERABLE_ERROR, "Error decrypting payload");
return;
}
ZSTR_VAL(ret)[ret_len] = 0;
ZSTR_LEN(ret) = ret_len;
RETURN_NEW_STR(ret);
} /* }}} */
/* {{{ proto string phydro_secretbox_probe_create(string $ciphertext, string $context, string $key) */
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(box_probe_create_arginfo, ZEND_RETURN_VALUE, 3, IS_STRING, 1)
ZEND_ARG_TYPE_INFO(0, ciphertext, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, context, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, key, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_secretbox_probe_create) {
zend_string *ciphertext, *context, *key, *ret;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "SSS", &ciphertext, &context, &key) == FAILURE) { return; }
if (!validate(context, "Context", hydro_secretbox_CONTEXTBYTES) ||
!validate(key, "Key", hydro_secretbox_KEYBYTES)) {
return;
}
ret = zend_string_alloc(hydro_secretbox_PROBEBYTES, 0);
hydro_secretbox_probe_create(ZSTR_VAL(ret), ZSTR_VAL(ciphertext), ZSTR_LEN(ciphertext), ZSTR_VAL(context), ZSTR_VAL(key));
ZSTR_VAL(ret)[hydro_secretbox_PROBEBYTES] = 0;
ZSTR_LEN(ret) = hydro_secretbox_PROBEBYTES;
RETURN_NEW_STR(ret);
} /* }}} */
/* {{{ proto bool phydro_secretbox_probe_verify(string $probe, string $ciphertext, string $context, string $key) */
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(box_probe_verify_arginfo, ZEND_RETURN_VALUE, 4, _IS_BOOL, 1)
ZEND_ARG_TYPE_INFO(0, probe, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, ciphertext, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, context, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, key, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_secretbox_probe_verify) {
zend_string *probe, *ciphertext, *context, *key;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "SSSS", &probe, &ciphertext, &context, &key) == FAILURE) { return; }
if (!validate(context, "Context", hydro_secretbox_CONTEXTBYTES) ||
!validate(key, "Key", hydro_secretbox_KEYBYTES)) {
return;
}
if (ZSTR_LEN(probe) != hydro_secretbox_PROBEBYTES) {
php_error(E_RECOVERABLE_ERROR, "Invalid probe length, must be exactly %d bytes", hydro_secretbox_PROBEBYTES);
return;
}
RETURN_BOOL(0 == hydro_secretbox_probe_verify(ZSTR_VAL(probe),
ZSTR_VAL(ciphertext), ZSTR_LEN(ciphertext),
ZSTR_VAL(context), ZSTR_VAL(key)));
} /* }}} */
/*************************************************************************/
/* KDF */
/* {{{ proto string phydro_kdf_keygen() */
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(kdf_keygen_arginfo, ZEND_RETURN_VALUE, 0, IS_STRING, 1)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_kdf_keygen) {
zend_string *ret = zend_string_alloc(hydro_kdf_KEYBYTES, 0);
zend_parse_parameters_none();
hydro_kdf_keygen(ZSTR_VAL(ret));
ZSTR_VAL(ret)[hydro_kdf_KEYBYTES] = 0;
ZSTR_LEN(ret) = hydro_kdf_KEYBYTES;
RETURN_NEW_STR(ret);
} /* }}} */
/* {{{ proto string phydro_kdf_derive_from_key(int $len, int $id, string $context, string $key) */
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(kdf_derive_from_key_arginfo, ZEND_RETURN_VALUE, 4, IS_STRING, 1)
ZEND_ARG_TYPE_INFO(0, length, IS_LONG, 0)
ZEND_ARG_TYPE_INFO(0, id, IS_LONG, 0)
ZEND_ARG_TYPE_INFO(0, context, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, key, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_kdf_derive_from_key) {
zend_long len, id;
zend_string *context, *key, *ret;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "llSS", &len, &id, &context, &key) == FAILURE) { return; }
if ((len < hydro_kdf_BYTES_MIN) || (len > hydro_kdf_BYTES_MAX)) {
php_error(E_RECOVERABLE_ERROR, "Invalid length specified %ld, must be between %d and %d", len, hydro_kdf_BYTES_MIN, hydro_kdf_BYTES_MAX);
return;
}
if (ZSTR_LEN(context) != hydro_kdf_CONTEXTBYTES) {
php_error(E_RECOVERABLE_ERROR, "Context must be precisely %d bytes", hydro_kdf_CONTEXTBYTES);
return;
}
if (ZSTR_LEN(key) != hydro_kdf_KEYBYTES) {
php_error(E_RECOVERABLE_ERROR, "Key must be precisely %d bytes", hydro_kdf_KEYBYTES);
return;
}
ret = zend_string_alloc(len, 0);
if (hydro_kdf_derive_from_key(ZSTR_VAL(ret), len, (uint64_t)id, ZSTR_VAL(context), ZSTR_VAL(key))) {
zend_string_release(ret);
php_error(E_RECOVERABLE_ERROR, "Failed deriving subkey");
return;
}
ZSTR_VAL(ret)[len] = 0;
ZSTR_LEN(ret) = len;
RETURN_NEW_STR(ret);
} /* }}} */
/*************************************************************************/
/* Signing */
/* {{{ proto array phydro_sign_keygen([?string $seed = null])
* Return array:
* 'pubkey' => $pk
* 'seckey' => $sk
*/
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(sign_keygen_arginfo, ZEND_RETURN_VALUE, 0, IS_ARRAY, 1)
ZEND_ARG_TYPE_INFO(0, seed, IS_STRING, 1)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_sign_keygen) {
zend_string *seed = NULL;
hydro_sign_keypair kp;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|S!", &seed) == FAILURE) { return; }
if (seed) {
if (!validate(seed, "Seed", hydro_sign_SEEDBYTES)) { return; }
hydro_sign_keygen_deterministic(&kp, ZSTR_VAL(seed));
} else {
hydro_sign_keygen(&kp);
}
array_init(return_value);
add_assoc_stringl(return_value, "pubkey", kp.pk, sizeof(kp.pk));
add_assoc_stringl(return_value, "seckey", kp.sk, sizeof(kp.sk));
hydro_memzero(&kp, sizeof(kp));
} /* }}} */
/* {{{ proto PhydroSignState phydro_sign_init(string $context) */
ZEND_BEGIN_ARG_WITH_RETURN_OBJ_INFO_EX(sign_init_arginfo, ZEND_RETURN_VALUE, 1, PhydroSignState, 1)
ZEND_ARG_TYPE_INFO(0, context, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_sign_init) {
zend_string *context;
zend_object *ret;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "S", &context) == FAILURE) { return; }
if (!validate(context, "Context", hydro_hash_CONTEXTBYTES)) { return; }
ret = phydro_sign_init(context);
if (!ret) {
php_error(E_RECOVERABLE_ERROR, "Failure initializing signing context");
return;
}
RETURN_OBJ(ret);
} /* }}} */
/* {{{ proto bool phydro_sign_update(PhydroSignState $sign, string $data) */
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(sign_update_arginfo, ZEND_RETURN_VALUE, 2, _IS_BOOL, 1)
ZEND_ARG_OBJ_INFO(0, sign, PhydroSignState, 0)
ZEND_ARG_TYPE_INFO(0, data, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_sign_update) {
zval *sign;
zend_string *data;
hydro_sign_state* state;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "OS", &sign, phydro_sign_ce, &data) == FAILURE) { return; }
state = phydro_sign_get_state(Z_OBJ_P(sign));
if (!state) {
php_error(E_RECOVERABLE_ERROR, "Error getting state from PhydroSignState object");
RETURN_FALSE;
}
if (hydro_sign_update(state, ZSTR_VAL(data), ZSTR_LEN(data))) {
php_error(E_RECOVERABLE_ERROR, "Failure updating signature");
RETURN_FALSE;
}
RETURN_TRUE;
} /* }}} */
/* {{{ proto string phydro_sign_final_create(PhydroSignState $sign, string $seckey) */
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(sign_final_create_arginfo, ZEND_RETURN_VALUE, 2, IS_STRING, 1)
ZEND_ARG_OBJ_INFO(0, sign, PhydroSignState, 0)
ZEND_ARG_TYPE_INFO(0, seckey, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_sign_final_create) {
zval *sign;
hydro_sign_state* state;
zend_string *ret, *seckey;
uint8_t csig[hydro_sign_BYTES];
if (zend_parse_parameters(ZEND_NUM_ARGS(), "OS", &sign, phydro_sign_ce, &seckey) == FAILURE) { return; }
if (!validate(seckey, "Secret key", hydro_sign_SECRETKEYBYTES)) { return; }
state = phydro_sign_get_state(Z_OBJ_P(sign));
if (!state) {
php_error(E_RECOVERABLE_ERROR, "Error getting state from PhydroSignState object");
return;
}
if (hydro_sign_final_create(state, csig, ZSTR_VAL(seckey))) {
php_error(E_RECOVERABLE_ERROR, "Error signing message");
return;
}
RETVAL_STRINGL(csig, sizeof(csig));
hydro_memzero(csig, sizeof(csig));
} /* }}} */
/* {{{ proto bool phydro_sign_final_verify(PhydroSignState $sign, string $signature, string $pubkey) */
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(sign_final_verify_arginfo, ZEND_RETURN_VALUE, 3, _IS_BOOL, 1)
ZEND_ARG_OBJ_INFO(0, sign, PhydroSignState, 0)
ZEND_ARG_TYPE_INFO(0, signature, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, pubkey, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_sign_final_verify) {
zval *sign;
hydro_sign_state* state;
zend_string *sig, *pubkey;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "OSS", &sign, phydro_sign_ce, &sig, &pubkey) == FAILURE) { return; }
if (!validate(sig, "Signature", hydro_sign_BYTES) ||
!validate(pubkey, "Public key", hydro_sign_PUBLICKEYBYTES)) {
return;
}
state = phydro_sign_get_state(Z_OBJ_P(sign));
if (!state) {
php_error(E_RECOVERABLE_ERROR, "Error getting state from PhydroSignState object");
return;
}
RETURN_BOOL(0 == hydro_sign_final_verify(state, ZSTR_VAL(sig), ZSTR_VAL(pubkey)));
} /* }}} */
/* {{{ proto string phydro_sign_create(string $message, string $context, string $seckey) */
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(sign_create_arginfo, ZEND_RETURN_VALUE, 3, IS_STRING, 1)
ZEND_ARG_TYPE_INFO(0, message, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, context, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, seckey, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_sign_create) {
zend_string *message, *context, *seckey;
uint8_t csig[hydro_sign_BYTES];
if (zend_parse_parameters(ZEND_NUM_ARGS(), "SSS", &message, &context, &seckey) == FAILURE) { return; }
if (!validate(context, "Context", hydro_sign_CONTEXTBYTES) ||
!validate(seckey, "Secret key", hydro_sign_SECRETKEYBYTES)) {
return;
}
if (hydro_sign_create(csig, ZSTR_VAL(message), ZSTR_LEN(message), ZSTR_VAL(context), ZSTR_VAL(seckey))) {
php_error(E_RECOVERABLE_ERROR, "Failed creating signature");
return;
}
RETURN_STRINGL(csig, sizeof(csig));
} /* }}} */
/* {{{ proto bool phydro_sign_verify(string $message, string $signature, string $context, string $publickey) */
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(sign_verify_arginfo, ZEND_RETURN_VALUE, 4, _IS_BOOL, 1)
ZEND_ARG_TYPE_INFO(0, message, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, signature, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, context, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, pubkey, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_sign_verify) {
zend_string *message, *signature, *context, *pubkey;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "SSSS", &message, &signature, &context, &pubkey) == FAILURE) { return; }
if (!validate(signature, "Signature", hydro_sign_BYTES) ||
!validate(context, "Context", hydro_sign_CONTEXTBYTES) ||
!validate(pubkey, "Public key", hydro_sign_PUBLICKEYBYTES)) {
return;
}
RETURN_BOOL(0 == hydro_sign_verify(ZSTR_VAL(signature), ZSTR_VAL(message), ZSTR_LEN(message), ZSTR_VAL(context), ZSTR_VAL(pubkey)));
} /* }}} */
/*************************************************************************/
/* Key Exchange */
/* {{{ proto array phydro_kx_keygen([?string $seed = null])
* Return array:
* 'pubkey' => $pk
* 'seckey' => $sk
*/
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(kx_keygen_arginfo, ZEND_RETURN_VALUE, 0, IS_ARRAY, 1)
ZEND_ARG_TYPE_INFO(0, seed, IS_STRING, 1)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_kx_keygen) {
zend_string *seed = NULL;
hydro_kx_keypair kp;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|S!", &seed) == FAILURE) { return; }
if (seed) {
if (!validate(seed, "Seed", hydro_kx_SEEDBYTES)) { return; }
hydro_kx_keygen_deterministic(&kp, ZSTR_VAL(seed));
} else {
hydro_kx_keygen(&kp);
}
array_init(return_value);
add_assoc_stringl(return_value, "pubkey", kp.pk, sizeof(kp.pk));
add_assoc_stringl(return_value, "seckey", kp.sk, sizeof(kp.sk));
hydro_memzero(&kp, sizeof(kp));
} /* }}} */
/* {{{ proto array phydro_kx_n_1(string $psk, string $publicKey)
* Return array:
* 'packet' => $packet1
* 'keys' => [ 'tx' => $tx, 'rx' => $rx ]
*/
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(n1_arginfo, ZEND_RETURN_VALUE, 2, IS_ARRAY, 1)
ZEND_ARG_TYPE_INFO(0, psk, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, publicKey, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_kx_n_1) {
zend_string *psk, *pubkey;
hydro_kx_session_keypair skp;
uint8_t packet[hydro_kx_N_PACKET1BYTES];
zval zskp;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "SS", &psk, &pubkey) == FAILURE) { return; }
if (!validate(psk, "PSK", hydro_kx_PSKBYTES) ||
!validate(pubkey, "Public key", hydro_kx_PUBLICKEYBYTES)) {
return;
}
if (hydro_kx_n_1(&skp, packet, ZSTR_VAL(psk), ZSTR_VAL(pubkey))) {
php_error(E_RECOVERABLE_ERROR, "Error generating N1 packet and session keys");
return;
}
array_init(return_value);
add_assoc_stringl(return_value, "packet", packet, sizeof(packet));
array_init(&zskp);
add_assoc_stringl(&zskp, "tx", skp.tx, sizeof(skp.tx));
add_assoc_stringl(&zskp, "rx", skp.rx, sizeof(skp.rx));
add_assoc_zval(return_value, "keys", &zskp);
hydro_memzero(packet, sizeof(packet));
hydro_memzero(&skp, sizeof(skp));
} /* }}} */
/* {{{ proto array phydro_kx_n_2(string $packet_1, string $psk, string $publicKey, string $secretKey)
* Return array:
* 'tx' => $tx
* 'rx' => $rx
*/
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(n2_arginfo, ZEND_RETURN_VALUE, 4, IS_ARRAY, 1)
ZEND_ARG_TYPE_INFO(0, packet1, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, psk, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, publicKey, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, secretKey, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_kx_n_2) {
zend_string *packet1, *psk, *pubkey, *seckey;
hydro_kx_keypair kp;
hydro_kx_session_keypair skp;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "SSSS", &packet1, &psk, &pubkey, &seckey) == FAILURE) { return; }
if (!validate(packet1, "Packet 1", hydro_kx_N_PACKET1BYTES) ||
!validate(psk, "PSK", hydro_kx_PSKBYTES) ||
!validate(pubkey, "Public key", hydro_kx_PUBLICKEYBYTES) ||
!validate(seckey, "Secret key", hydro_kx_SECRETKEYBYTES)) {
return;
}
memcpy(kp.pk, ZSTR_VAL(pubkey), sizeof(kp.pk));
memcpy(kp.sk, ZSTR_VAL(seckey), sizeof(kp.sk));
if (hydro_kx_n_2(&skp, ZSTR_VAL(packet1), ZSTR_VAL(psk), &kp)) {
hydro_memzero(&kp, sizeof(kp));
php_error(E_RECOVERABLE_ERROR, "Failure generating session keys");
return;
}
hydro_memzero(&kp, sizeof(kp));
array_init(return_value);
add_assoc_stringl(return_value, "tx", skp.tx, sizeof(skp.tx));
add_assoc_stringl(return_value, "rx", skp.rx, sizeof(skp.rx));
hydro_memzero(&skp, sizeof(skp));
} /* }}} */
/* {{{ proto array phydro_kx_kk_1(string $peerPublicKey, string $publicKey, string $secretKey)
* Return array:
* 'packet' => $packet1
* 'state' => $state
*/
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(kk1_arginfo, ZEND_RETURN_VALUE, 3, IS_ARRAY, 1)
ZEND_ARG_TYPE_INFO(0, peerPublicKey, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, publicKey, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, secretKey, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_kx_kk_1) {
zend_string *peer_pubkey, *pubkey, *seckey;
hydro_kx_keypair kp;
uint8_t packet[hydro_kx_KK_PACKET1BYTES];
hydro_kx_state state;
zend_object *state_obj;
zval zstate;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "SSS", &peer_pubkey, &pubkey, &seckey) == FAILURE) { return; }
if (!validate(peer_pubkey, "Peer public key", hydro_kx_PUBLICKEYBYTES) ||
!validate(pubkey, "Public key", hydro_kx_PUBLICKEYBYTES) ||
!validate(seckey, "Secret key", hydro_kx_SECRETKEYBYTES)) {
return;
}
memcpy(kp.pk, ZSTR_VAL(pubkey), sizeof(kp.pk));
memcpy(kp.sk, ZSTR_VAL(seckey), sizeof(kp.sk));
if (hydro_kx_kk_1(&state, packet, ZSTR_VAL(peer_pubkey), &kp)) {
hydro_memzero(&kp, sizeof(kp));
php_error(E_RECOVERABLE_ERROR, "Failure generating packet");
return;
}
hydro_memzero(&kp, sizeof(kp));
state_obj = phydro_kx_state_init(&state);
hydro_memzero(&state, sizeof(state));
if (!state_obj) {
php_error(E_RECOVERABLE_ERROR, "Unable to create state object");
hydro_memzero(&packet, sizeof(packet));
return;
}
ZVAL_OBJ(&zstate, state_obj);
array_init(return_value);
add_assoc_stringl(return_value, "packet", packet, sizeof(packet));
add_assoc_zval(return_value, "state", &zstate);
hydro_memzero(packet, sizeof(packet));
} /* }}} */
/* {{{ proto array phydro_kx_kk_2(string $packet1, string $peerPublicKey, string $publicKey, string $secretKey)
* Return array:
* 'packet' => $packet2
* 'keys' => [ 'tx' => $tx, 'rx' => $rx ]
*/
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(kk2_arginfo, ZEND_RETURN_VALUE, 4, IS_ARRAY, 1)
ZEND_ARG_TYPE_INFO(0, packet1, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, peerPublicKey, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, publicKey, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, secretKey, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_kx_kk_2) {
zend_string *packet1, *peer_pubkey, *pubkey, *seckey;
hydro_kx_keypair kp;
uint8_t packet2[hydro_kx_KK_PACKET2BYTES];
hydro_kx_session_keypair skp;
zval zskp;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "SSSS", &packet1, &peer_pubkey, &pubkey, &seckey) == FAILURE) { return; }
if (!validate(packet1, "Packet 1", hydro_kx_KK_PACKET1BYTES) ||
!validate(peer_pubkey, "Peer public key", hydro_kx_PUBLICKEYBYTES) ||
!validate(pubkey, "Public key", hydro_kx_PUBLICKEYBYTES) ||
!validate(seckey, "Secret key", hydro_kx_SECRETKEYBYTES)) {
return;
}
memcpy(kp.pk, ZSTR_VAL(pubkey), sizeof(kp.pk));
memcpy(kp.sk, ZSTR_VAL(seckey), sizeof(kp.sk));
if (hydro_kx_kk_2(&skp, packet2, ZSTR_VAL(packet1), ZSTR_VAL(peer_pubkey), &kp)) {
hydro_memzero(&kp, sizeof(kp));
php_error(E_RECOVERABLE_ERROR, "Failure generating packet");
return;
}
hydro_memzero(&kp, sizeof(kp));
array_init(return_value);
add_assoc_stringl(return_value, "packet", packet2, sizeof(packet2));
hydro_memzero(packet2, sizeof(packet2));
array_init(&zskp);
add_assoc_stringl(&zskp, "tx", skp.tx, sizeof(skp.tx));
add_assoc_stringl(&zskp, "rx", skp.rx, sizeof(skp.rx));
add_assoc_zval(return_value, "keys", &zskp);
hydro_memzero(&skp, sizeof(skp));
} /* }}} */
/* {{{ proto array phydro_kx_kk_3(PhydroKXState $state, string $packet2, string $peerPublicKey)
* Return array:
* "tx" => $tx
* "rx" => $rx
*/
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(kk3_arginfo, ZEND_RETURN_VALUE, 3, IS_ARRAY, 1)
ZEND_ARG_OBJ_INFO(0, state, PhydroKXState, 0)
ZEND_ARG_TYPE_INFO(0, packet2, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, peerPublicKey, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_kx_kk_3) {
zval *zstate;
zend_string *packet2, *peer_pubkey;
hydro_kx_state *state;
hydro_kx_session_keypair skp;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "OSS", &zstate, phydro_kx_ce, &packet2, &peer_pubkey) == FAILURE) { return; }
if (!validate(packet2, "Packet 2", hydro_kx_KK_PACKET2BYTES) ||
!validate(peer_pubkey, "Peer public key", hydro_kx_PUBLICKEYBYTES)) {
return;
}
state = phydro_kx_get_state(Z_OBJ_P(zstate));
if (hydro_kx_kk_3(state, &skp, ZSTR_VAL(packet2), ZSTR_VAL(peer_pubkey))) {
php_error(E_RECOVERABLE_ERROR, "Failure generating session keys");
return;
}
array_init(return_value);
add_assoc_stringl(return_value, "tx", skp.tx, sizeof(skp.tx));
add_assoc_stringl(return_value, "rx", skp.rx, sizeof(skp.rx));
hydro_memzero(&skp, sizeof(skp));
} /* }}} */
/* {{{ proto array phydro_kx_xx_1(string $psk)
* Return array:
* 'packet' => $packet1
* 'state' => $state
*/
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(xx1_arginfo, ZEND_RETURN_VALUE, 1, IS_ARRAY, 1)
ZEND_ARG_TYPE_INFO(0, psk, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_kx_xx_1) {
zend_string *psk;
hydro_kx_state state;
uint8_t packet1[hydro_kx_XX_PACKET1BYTES];
zend_object *state_obj;
zval zstate;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "S", &psk) == FAILURE) { return; }
if (!validate(psk, "PSK", hydro_kx_PSKBYTES)) { return; }
if (hydro_kx_xx_1(&state, packet1, ZSTR_VAL(psk))) {
php_error(E_RECOVERABLE_ERROR, "Unable to create packet");
return;
}
state_obj = phydro_kx_state_init(&state);
hydro_memzero(&state, sizeof(state));
if (!state_obj) {
php_error(E_RECOVERABLE_ERROR, "Unable to create state object");
hydro_memzero(&packet1, sizeof(packet1));
return;
}
ZVAL_OBJ(&zstate, state_obj);
array_init(return_value);
add_assoc_stringl(return_value, "packet", packet1, sizeof(packet1));
add_assoc_zval(return_value, "state", &zstate);
hydro_memzero(packet1, sizeof(packet1));
} /* }}} */
/* {{{ proto array phydro_kx_xx_2(string $packet1, string $psk, string $pubkey, string $seckey)
* Return array:
* 'packet' => $packet3
* 'state' => $state
*/
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(xx2_arginfo, ZEND_RETURN_VALUE, 4, IS_ARRAY, 1)
ZEND_ARG_TYPE_INFO(0, packet1, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, psk, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, pubkey, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, seckey, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_kx_xx_2) {
zend_string *packet1, *psk, *pubkey, *seckey;
hydro_kx_state state;
uint8_t packet2[hydro_kx_XX_PACKET2BYTES];
hydro_kx_keypair kp;
zend_object *state_obj;
zval zstate;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "SSSS", &packet1, &psk, &pubkey, &seckey) == FAILURE) { return; }
if (!validate(packet1, "Packet 1", hydro_kx_XX_PACKET1BYTES) ||
!validate(psk, "PSK", hydro_kx_PSKBYTES) ||
!validate(pubkey, "Public key", hydro_kx_PUBLICKEYBYTES) ||
!validate(seckey, "Secret Key", hydro_kx_SECRETKEYBYTES)) { return; }
memcpy(kp.pk, ZSTR_VAL(pubkey), hydro_kx_PUBLICKEYBYTES);
memcpy(kp.sk, ZSTR_VAL(seckey), hydro_kx_SECRETKEYBYTES);
if (hydro_kx_xx_2(&state, packet2, ZSTR_VAL(packet1), ZSTR_VAL(psk), &kp)) {
hydro_memzero(&kp, sizeof(kp));
php_error(E_RECOVERABLE_ERROR, "Unable to create packet");
return;
}
hydro_memzero(&kp, sizeof(kp));
state_obj = phydro_kx_state_init(&state);
hydro_memzero(&state, sizeof(state));
if (!state_obj) {
php_error(E_RECOVERABLE_ERROR, "Unable to create state object");
hydro_memzero(&packet2, sizeof(packet2));
return;
}
ZVAL_OBJ(&zstate, state_obj);
array_init(return_value);
add_assoc_stringl(return_value, "packet", packet2, sizeof(packet2));
add_assoc_zval(return_value, "state", &zstate);
hydro_memzero(packet2, sizeof(packet2));
} /* }}} */
/* {{{ proto array phydro_kx_xx_3(PhydroKXState $state, string $packet2, string $psk, string $pubkey, string $seckey)
* Return array:
* 'packet' => $packet3
* 'keys' => [ 'tx' => $tx, 'rx' => $rx ]
* 'peer' => $peerPublicKey
*/
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(xx3_arginfo, ZEND_RETURN_VALUE, 5, IS_ARRAY, 1)
ZEND_ARG_OBJ_INFO(0, state, PhydroKXState, 0)
ZEND_ARG_TYPE_INFO(0, packet2, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, psk, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, pubkey, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, seckey, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_kx_xx_3) {
zval *zstate;
zend_string *packet2, *psk, *pubkey, *seckey;
hydro_kx_state *state;
hydro_kx_keypair kp;
hydro_kx_session_keypair skp;
zval zskp;
uint8_t packet3[hydro_kx_XX_PACKET3BYTES];
uint8_t peer[hydro_kx_PUBLICKEYBYTES];
if (zend_parse_parameters(ZEND_NUM_ARGS(), "OSSSS", &zstate, phydro_kx_ce, &packet2, &psk, &pubkey, &seckey) == FAILURE) { return; }
if (!validate(packet2, "Packet 2", hydro_kx_XX_PACKET2BYTES) ||
!validate(psk, "PSK", hydro_kx_PSKBYTES) ||
!validate(pubkey, "Public key", hydro_kx_PUBLICKEYBYTES) ||
!validate(seckey, "Secret key", hydro_kx_SECRETKEYBYTES)) {
return;
}
state = phydro_kx_get_state(Z_OBJ_P(zstate));
memcpy(kp.pk, ZSTR_VAL(pubkey), sizeof(kp.pk));
memcpy(kp.sk, ZSTR_VAL(seckey), sizeof(kp.sk));
if (hydro_kx_xx_3(state, &skp, packet3, peer, ZSTR_VAL(packet2), ZSTR_VAL(psk), &kp)) {
hydro_memzero(&kp, sizeof(kp));
php_error(E_RECOVERABLE_ERROR, "Failure generating packet");
return;
}
hydro_memzero(&kp, sizeof(kp));
array_init(return_value);
add_assoc_stringl(return_value, "packet", packet3, sizeof(packet3));
array_init(&zskp);
add_assoc_stringl(&zskp, "tx", skp.tx, sizeof(skp.tx));
add_assoc_stringl(&zskp, "rx", skp.rx, sizeof(skp.rx));
add_assoc_zval(return_value, "keys", &zskp);
add_assoc_stringl(return_value, "peer", peer, sizeof(peer));
hydro_memzero(packet3, sizeof(packet3));
hydro_memzero(&skp, sizeof(skp));
} /* }}} */
/* {{{ proto array phydro_kx_xx_4(PhydroKXState $state, string $packet3, string $psk)
* Return array:
* 'keys' => [ 'tx' => $tx, 'rx' => $rx ]
* 'peer' => $peerPublicKey
*/
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(xx4_arginfo, ZEND_RETURN_VALUE, 3, IS_ARRAY, 1)
ZEND_ARG_OBJ_INFO(0, state, PhydroKXState, 0)
ZEND_ARG_TYPE_INFO(0, packet3, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, psk, IS_STRING, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_kx_xx_4) {
zval *zstate;
zend_string *packet3, *psk;
hydro_kx_state *state;
hydro_kx_session_keypair skp;
zval zskp;
uint8_t peer[hydro_kx_PUBLICKEYBYTES];
if (zend_parse_parameters(ZEND_NUM_ARGS(), "OSS", &zstate, phydro_kx_ce, &packet3, &psk) == FAILURE) { return; }
if (!validate(packet3, "Packet 3", hydro_kx_XX_PACKET3BYTES) ||
!validate(psk, "PSK", hydro_kx_PSKBYTES)) {
return;
}
state = phydro_kx_get_state(Z_OBJ_P(zstate));
if (hydro_kx_xx_4(state, &skp, peer, ZSTR_VAL(packet3), ZSTR_VAL(psk))) {
php_error(E_RECOVERABLE_ERROR, "Failure generating session keys");
return;
}
array_init(return_value);
array_init(&zskp);
add_assoc_stringl(&zskp, "tx", skp.tx, sizeof(skp.tx));
add_assoc_stringl(&zskp, "rx", skp.rx, sizeof(skp.rx));
add_assoc_zval(return_value, "keys", &zskp);
add_assoc_stringl(return_value, "peer", peer, sizeof(peer));
hydro_memzero(&skp, sizeof(skp));
} /* }}} */
/*************************************************************************/
/* PWHash */
/* {{{ proto string phydro_pwhash_keygen() */
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(pwhash_keygen_arginfo, ZEND_RETURN_VALUE, 0, IS_STRING, 1)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_pwhash_keygen) {
uint8_t key[hydro_pwhash_MASTERKEYBYTES];
zend_parse_parameters_none();
hydro_pwhash_keygen(key);
RETURN_STRINGL(key, sizeof(key));
} /* }}} */
static zend_bool validate_pwvals(zend_long opsLimit, zend_long memLimit, zend_long threads) {
if (opsLimit < 0) {
php_error(E_RECOVERABLE_ERROR, "Invalid opsLimit: %ld", opsLimit);
return 0;
}
if (memLimit < 0) {
php_error(E_RECOVERABLE_ERROR, "Invalid memLimit: %ld", memLimit);
return 0;
}
if ((threads < 0) || (threads > 255)) {
php_error(E_RECOVERABLE_ERROR, "Invalid thread count: %ld", threads);
return 0;
}
return 1;
}
/* {{{ proto string phydro_pwhash_deterministic(int $len, string $password, string $context, string $masterKey, int $opsLimit, int $memlimit, int $threads) */
ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(pwhash_deterministic_arginfo, ZEND_RETURN_VALUE, 7, IS_STRING, 1)
ZEND_ARG_TYPE_INFO(0, len, IS_LONG, 0)
ZEND_ARG_TYPE_INFO(0, password, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, context, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, masterKey, IS_STRING, 0)
ZEND_ARG_TYPE_INFO(0, opsLimit, IS_LONG, 0)
ZEND_ARG_TYPE_INFO(0, memLimit, IS_LONG, 0)
ZEND_ARG_TYPE_INFO(0, threads, IS_LONG, 0)
ZEND_END_ARG_INFO();
static PHP_FUNCTION(phydro_pwhash_deterministic) {
zend_long len, opsLimit, memLimit, threads;
zend_string *password, *context, *key, *ret;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "lSSSlll", &len, &password, &context, &key, &opsLimit, &memLimit, &threads) == FAILURE) { return; }
if (!validate(context, "Context", hydro_pwhash_CONTEXTBYTES) ||
!validate(key, "Master key", hydro_pwhash_MASTERKEYBYTES) ||
!validate_pwvals(opsLimit, memLimit, threads)) {
return;
}
if (len <= 0) {
php_error(E_RECOVERABLE_ERROR, "Invalid length: %ld", len);
return;