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110b4e9094
The concrete need on this change is to support passing an initial seed to the murmur hash. Passing a custom seed is important in terms of randomizing the hash function. The suggested implementation adds a HashTable parameter to all the init callbacks. Further on, an array with custom arguments is accepted from `hash` or `hash_init` from the user land. Currently several things like `hash_hkdf` are not touched, as they don't need passing custom args. Some convenience macros have been added to the SHA/MD families of functions, so the consuming code doesn't have to be changed widely. Another way to implement this is to add another type of the init that would accept a HT with arguments. However, that would still require touching all the context structs in all the algos. That would also increase the size of those structs. As an init function is called just once, the way of modifying the existing init callback has been seen as more preferrable. Closes GH-6400. Signed-off-by: Anatol Belski <ab@php.net> Co-Developed-by: Nikita Popov <nikita.ppv@googlemail.com> Signed-off-by: Nikita Popov <nikita.ppv@googlemail.com> Acked-by: Michael Wallner <mike@php.net> Reviewed-by: Máté Kocsis <kocsismate@woohoolabs.com> Reviewed-by: Eddie Kohler <ekohler@gmail.com>
57 lines
2.5 KiB
C
57 lines
2.5 KiB
C
/*
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+----------------------------------------------------------------------+
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| Copyright (c) The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Author: Anatol Belski <ab@php.net> |
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+----------------------------------------------------------------------+
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*/
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#ifndef PHP_HASH_MURMUR_H
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#define PHP_HASH_MURMUR_H
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typedef struct {
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uint32_t h;
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uint32_t carry;
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uint32_t len;
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} PHP_MURMUR3A_CTX;
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#define PHP_MURMUR3A_SPEC "lll"
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PHP_HASH_API void PHP_MURMUR3AInit(PHP_MURMUR3A_CTX *ctx, HashTable *args);
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PHP_HASH_API void PHP_MURMUR3AUpdate(PHP_MURMUR3A_CTX *ctx, const unsigned char *in, size_t len);
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PHP_HASH_API void PHP_MURMUR3AFinal(unsigned char digest[4], PHP_MURMUR3A_CTX *ctx);
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PHP_HASH_API int PHP_MURMUR3ACopy(const php_hash_ops *ops, PHP_MURMUR3A_CTX *orig_context, PHP_MURMUR3A_CTX *copy_context);
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typedef struct {
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uint32_t h[4];
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uint32_t carry[4];
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uint32_t len;
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} PHP_MURMUR3C_CTX;
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#define PHP_MURMUR3C_SPEC "lllllllll"
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PHP_HASH_API void PHP_MURMUR3CInit(PHP_MURMUR3C_CTX *ctx, HashTable *args);
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PHP_HASH_API void PHP_MURMUR3CUpdate(PHP_MURMUR3C_CTX *ctx, const unsigned char *in, size_t len);
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PHP_HASH_API void PHP_MURMUR3CFinal(unsigned char digest[16], PHP_MURMUR3C_CTX *ctx);
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PHP_HASH_API int PHP_MURMUR3CCopy(const php_hash_ops *ops, PHP_MURMUR3C_CTX *orig_context, PHP_MURMUR3C_CTX *copy_context);
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typedef struct {
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uint64_t h[2];
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uint64_t carry[2];
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uint32_t len;
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} PHP_MURMUR3F_CTX;
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#define PHP_MURMUR3F_SPEC "qqqql"
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PHP_HASH_API void PHP_MURMUR3FInit(PHP_MURMUR3F_CTX *ctx, HashTable *args);
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PHP_HASH_API void PHP_MURMUR3FUpdate(PHP_MURMUR3F_CTX *ctx, const unsigned char *in, size_t len);
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PHP_HASH_API void PHP_MURMUR3FFinal(unsigned char digest[16], PHP_MURMUR3F_CTX *ctx);
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PHP_HASH_API int PHP_MURMUR3FCopy(const php_hash_ops *ops, PHP_MURMUR3F_CTX *orig_context, PHP_MURMUR3F_CTX *copy_context);
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#endif /* PHP_HASH_MURMUR_H */
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