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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:51:24 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:51:24 +0000 |
commit | f7548d6d28c313cf80e6f3ef89aed16a19815df1 (patch) | |
tree | a3f6f2a3f247293bee59ecd28e8cd8ceb6ca064a /src/lib/hash-method.h | |
parent | Initial commit. (diff) | |
download | dovecot-f7548d6d28c313cf80e6f3ef89aed16a19815df1.tar.xz dovecot-f7548d6d28c313cf80e6f3ef89aed16a19815df1.zip |
Adding upstream version 1:2.3.19.1+dfsg1.upstream/1%2.3.19.1+dfsg1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/lib/hash-method.h')
-rw-r--r-- | src/lib/hash-method.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/lib/hash-method.h b/src/lib/hash-method.h new file mode 100644 index 0000000..c4250de --- /dev/null +++ b/src/lib/hash-method.h @@ -0,0 +1,55 @@ +#ifndef HASH_METHOD_H +#define HASH_METHOD_H + +#include "buffer.h" + +struct hash_method { + const char *name; + /* Block size for the algorithm */ + unsigned int block_size; + /* Number of bytes that must be allocated for context */ + unsigned int context_size; + /* Number of bytes that must be allocated for result()'s digest */ + unsigned int digest_size; + + void (*init)(void *context); + void (*loop)(void *context, const void *data, size_t size); + void (*result)(void *context, unsigned char *digest_r); +}; + +const struct hash_method *hash_method_lookup(const char *name); + +/* NULL-terminated list of all hash methods */ +extern const struct hash_method *hash_methods[]; + +void hash_method_get_digest(const struct hash_method *meth, + const void *data, size_t data_len, + unsigned char *result_r); + +/** Simple datastack helpers for digesting (hashing) + + * USAGE: + + buffer_t *result = t_hash_str(hash_method_lookup("sha256"), "hello world"); + const char *hex = binary_to_hex(result->data, result->used); + +*/ + +buffer_t *t_hash_data(const struct hash_method *meth, + const void *data, size_t data_len); + +static inline +buffer_t *t_hash_buffer(const struct hash_method *meth, + const buffer_t *data) +{ + return t_hash_data(meth, data->data, data->used); +} + +static inline +buffer_t *t_hash_str(const struct hash_method *meth, + const char *data) +{ + return t_hash_data(meth, data, strlen(data)); +} + +#endif |