75 lines
3.2 KiB
C
75 lines
3.2 KiB
C
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/* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef APR_RANDOM_H
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#define APR_RANDOM_H
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#include <fspr_pools.h>
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typedef struct fspr_crypto_hash_t fspr_crypto_hash_t;
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typedef void fspr_crypto_hash_init_t(fspr_crypto_hash_t *hash);
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typedef void fspr_crypto_hash_add_t(fspr_crypto_hash_t *hash,const void *data,
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fspr_size_t bytes);
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typedef void fspr_crypto_hash_finish_t(fspr_crypto_hash_t *hash,
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unsigned char *result);
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/* FIXME: make this opaque */
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struct fspr_crypto_hash_t {
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fspr_crypto_hash_init_t *init;
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fspr_crypto_hash_add_t *add;
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fspr_crypto_hash_finish_t *finish;
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fspr_size_t size;
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void *data;
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};
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APR_DECLARE(fspr_crypto_hash_t *) fspr_crypto_sha256_new(fspr_pool_t *p);
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typedef struct fspr_random_t fspr_random_t;
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APR_DECLARE(void) fspr_random_init(fspr_random_t *g,fspr_pool_t *p,
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fspr_crypto_hash_t *pool_hash,
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fspr_crypto_hash_t *key_hash,
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fspr_crypto_hash_t *prng_hash);
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APR_DECLARE(fspr_random_t *) fspr_random_standard_new(fspr_pool_t *p);
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APR_DECLARE(void) fspr_random_add_entropy(fspr_random_t *g,
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const void *entropy_,
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fspr_size_t bytes);
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APR_DECLARE(fspr_status_t) fspr_random_insecure_bytes(fspr_random_t *g,
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void *random,
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fspr_size_t bytes);
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APR_DECLARE(fspr_status_t) fspr_random_secure_bytes(fspr_random_t *g,
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void *random,
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fspr_size_t bytes);
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APR_DECLARE(void) fspr_random_barrier(fspr_random_t *g);
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APR_DECLARE(fspr_status_t) fspr_random_secure_ready(fspr_random_t *r);
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APR_DECLARE(fspr_status_t) fspr_random_insecure_ready(fspr_random_t *r);
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/* Call this in the child after forking to mix the randomness
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pools. Note that its generally a bad idea to fork a process with a
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real PRNG in it - better to have the PRNG externally and get the
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randomness from there. However, if you really must do it, then you
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should supply all your entropy to all the PRNGs - don't worry, they
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won't produce the same output.
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Note that fspr_proc_fork() calls this for you, so only weird
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applications need ever call it themselves.
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*/
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struct fspr_proc_t;
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APR_DECLARE(void) fspr_random_after_fork(struct fspr_proc_t *proc);
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#endif /* ndef APR_RANDOM_H */
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